Answer:
Step-by-step explanation:
3 + 4 = 7.
the denominator stays the same. You only add the numerators.
7/5 in mixed number form is 1 2/5 because 7 goes into 5 once. so kinda like 7 - 5 = 2. and the 2 goes on top now.
Can u pleaseee answer all parts pleaseeeee <3333
please help meee
a. In interval notation, Increasing intervals: (12pm, 1pm) U (1pm, 2pm) U (2pm, 3pm). Decreasing intervals: (8am, 9am) U (11am, 12pm). Constant intervals: (9am, 10am) U (10am, 11am)
b. The increase in cost between 12 noon and 3 pm is $2.
c. Yellow Cab has a lower price per 1km than Swift ride at (8am, 9am) (9am, 10am) (2pm 3pm)
How do you express a data set in interval notations?Interval notation is used to represent continuous intervals of numbers or values, like ranges on a number line.
The graph shows that from 8-9am, and 11-12pm, the cost from Swift Ride decreases.
We can represent it as (8am, 9am) U (11am, 12pm).
It increases at these times (12pm, 1pm) U (1pm, 2pm) U (2pm, 3pm).
And stays constant at : (9am, 10am) U (10am, 11am)
Cost increase from 12 to 3pm,We simply deduct the 12pm's cost from 3pm's cost.
So, we have
Cost increase = $3.5 - $1.5
Evaluate the difference
Cost increase = $2
Hence, the cost increase is $2
The time interval where the cost is lowerWhen you plot the points provided for Yellow cab, you'll notice that Yellow Cab has a lower price per 1km than Swift ride at (8am, 9am) (9am, 10am) (2pm 3pm)
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NEED HELP ASAP PLS AND THX PIC IS ATTACHED
The measure of the hypotenuse of the right-angle triangle is 53.21 feet.
Given that:
Perpendicular, P = 50 feet
Angle, Ф = 70°
It's a form of a triangle with one 90-degree angle that follows Pythagoras' theorem and can be solved using the trigonometry function.
The measure of the hypotenuse of the right-angle triangle is calculated as,
sinФ = P/H
sin 70° = 50 / x
x = 53.21 feet
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How do we know where to label base and where to label height on a trapezium. does it matter where they are on the trapezium or does it have to be in rectangular please help on question
The labeling of bases and height in a trapezium is not fixed and can vary based on the context or problem. It doesn't matter where they are on the trapezium, as long as they are clearly defined and consistent within the given situation.
In a trapezium (or trapezoid), the labeling of the bases and height is not fixed or standardized. It can vary depending on the context or the specific problem being considered. However, there are a few general guidelines to keep in mind when labeling a trapezium.
Bases: The trapezium has two parallel sides, often referred to as the "top base" and the "bottom base." The bases are usually labeled based on their relative lengths or position in the trapezium. The longer parallel side is commonly referred to as the "top base," while the shorter parallel side is referred to as the "bottom base." However, this is not a strict rule and can vary depending on the problem or preference.
Height: The height of a trapezium is the perpendicular distance between the bases. It is generally labeled as a vertical line segment connecting the bases. The placement of the height is not fixed, and it can be drawn from any point on the top base to any point on the bottom base, as long as it forms a perpendicular line. The height is usually labeled with the symbol "h" or sometimes "x" or "y" depending on the context.
It's important to note that the labeling of the bases and height is primarily for communication and clarity. As long as the labeling is consistent and clearly defined within the given problem or context, it does not have to conform to any specific arrangement or be in a rectangular shape. The key is to ensure that the labels are clearly understood and can be used to calculate the desired quantities or solve the problem at hand.
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What is the vertex of f(x)=x2−8x+15 ?
Answer:
(4,-1)
i strongly believe that is the answer, pls mark as brainlist
Cliff takes out a $5,000 personal loan with 7
fixed annual interest compounded monthly to pay for his wedding. He repays the loan in 2 year.s
How much total interest does Cliff pay on his loan?
Cliff pays a total interest of approximately $679.90 on his $5,000 loan.
To calculate the total interest paid on the loan, we need to use the formula for compound interest:
\(A = P(1 + r/n)^{(nt)}\)
Where:
A is the final amount (loan amount + interest)
P is the principal (loan amount)
r is the annual interest rate (in decimal form)
n is the number of times interest is compounded per year
t is the number of years
Given that Cliff takes out a $5,000 loan with a fixed annual interest rate of 7% compounded monthly, we can substitute the values into the formula:
P = $5,000
r = 7% = 0.07
n = 12 (monthly compounding)
t = 2 years
\(A = 5000(1 + 0.07/12)^{(12 \times 2)\)
Calculating this expression:
A ≈ 5000\((1.00583)^{(24)\)
A ≈ 5000(1.13598)
A ≈ 5679.90
The final amount (A) is the loan amount plus the total interest paid. Therefore, to find the total interest paid, we subtract the principal (P) from the final amount (A):
Total Interest = A - P
Total Interest = 5679.90 - 5000
Total Interest ≈ $679.90
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Given f(x) = 3(4-x), what is the value of f( − 2)? Enter your answer in the answer box.
Answer:
f(-2) = 18
Step-by-step explanation:
In order to calculate a function of x, we replace x
For example
f(x) = x
f(-2) = -2
In this specific scenario
f(x) = 3 * (4 - x)
f(-2) = 3 * (4 - -2)
- -2 turns positive
f(-2) = 3 * (4 + 2)
Now we use PAMDAS (parentheses, exponents, multiplication, division, addition) as an operation order, so we first solve the parantheses
f(-2) = 3 * 6
f(-2) = 18
(CLASSKICK) HELP ASAP!!!
Answer:
94.3
Step-by-step explanation:
You want to know how to fill in the proportion associated with the question, "What is 115% of 82?"
ProportionThe diagram is intended to help you match parts of the question to parts of the proportion. The attachment shows the intended relation.
The solution is found by multiplying both sides by 82:
(x/82)·82 = (115/100)·82
x = 94.3
EquationThe question can also be written as a statement:
"what" is 115% of 82
When written as an equation, "is" means "equals", and "of" means "times":
what = 115% × 82
Of course, you can use any variable name of your choosing in place of "what". In your diagram, that is "x". And, you know how to write a percentage as a fraction or decimal, so this becomes ...
x = 115/100 × 82 = 1.15 × 82
All that remains is to evaluate this expression.
x = 1.15 × 82 = 94.3
So, the answer to the question is ...
94.3 is 115% of 82.
Which expression represents the number of tiles on Wendy's kitchen floor?
Wendy lays rows of 8 tiles each to cover her kitchen floor. Use t
for the number of rows.
t−8
8×8t
8t
8+t
The expression that represents the number of tiles on Wendy's kitchen floor is B. 8 × 8t.
What is an expression?An expression refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.
In this case, Wendy lays rows of 8 tiles each to cover her kitchen floor.
Let t = the number of rows.
Therefore, the number of tiles on Wendy's kitchen floor will be:
= 8 × 8t.
Therefore, the correct option is B.
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What are some random numbers that add up to 50?
Answer:
25+25, 40+10, 35+15 If that's your question, not sure. But if you mean what's divisible by 50, maybe 10, 5
Step-by-step explanation:
multiply [4, 0, -1, 2, -3, -1]x[0, 1, -3, 1]
Please Help...
Multiplication of the given matrix is not possible by definition of matrix multiplication.
Since, To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
Expression for multiply,
⇒ [4, 0, -1, 2, -3, -1] x [0, 1, -3, 1]
Since, We can see that;
First matrix have order 1 x 6
And, Second matrix have order 1 x 4
We know that;
Matrix multiplication is possible when number of column in first matrix is same as number of rows in second matrix.
Hence, By given matrices we get;
Number of column in first matrix (6) ≠ number of rows in second matrix (1)
So, Multiplication of the given matrix is not possible by definition of matrix multiplication.
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Find the equation of a straight line cutting off the y-intercept 4 from the axis of y and inclined to 60° with the positive direction of X-axis.
The linear function is given as follows:
\(y = \sqrt{x} + 4\)
How to define a linear function?The slope-intercept equation for a linear function is presented as follows:
y = mx + b
In which:
m is the slope.b is the intercept.The y-intercept is of 4, hence the parameter b is given as follows:
b = 4.
The line is inclined to 60° with the positive direction of X-axis, hence the slope m is given as follows:
m = tan(60º)
\(m = \sqrt{3}\)
Thus the function is given as follows:
\(y = \sqrt{x} + 4\)
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Which shows the rational expression written using the least common denominator x 1/4x2 x 1/x2
The rational expression written using the least common denominator \(\frac{x+1}{4x^{2} }+\frac{x+1}{x^{2} }\\\) is \(\frac{x+1}{4x^{2} }+\frac{4(x+1)}{4x^{2} }\).
What is a rational expression?The ratio of two polynomials is displayed in rational expressions. It indicates that the denominator and numerator are polynomials. It is an algebraic expression that has a ratio and an unknown variable, just like a fraction. Although we can simplify this kind of equation with the aid of a calculator.
Because one is divided by the other, just like a ratio, it is a "rational expression."
The polynomial that we divide by cannot be zero, as a reminder.
The least common denominator for \(4x^{2}\) and \(x^{2}\) is calculated to be \(4x^{2}\).
Thus, the required rational expression is \(\frac{x+1}{4x^{2} }+\frac{4(x+1)}{4x^{2} }\).
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How do you solve this??
21 a(little 6) b(little 5)
————————————
7 a(little 3) b
\((21a^6b^5) / (7a^3b)\) simplifies to \(3a^3b^4.\)
To solve this problemWe can use the rules of exponents and simplify the terms with the same base.
Dividing the coefficients: 21 / 7 = 3.
For the variables, you subtract the exponents: \(a^6 / a^3 = a^(^6^-^3^) = a^3.\)
Similarly,\(b^5 / b = b^(5-1) = b^4\).
Putting it all together, the simplified expression is:
\(3a^3b^4.\)
Therefore, \((21a^6b^5) / (7a^3b)\) simplifies to \(3a^3b^4.\)
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i need help pls!!
7th grade math :)
Answer: E
Because the X is A positive and Y is a negative.
Answer: I'm a 7th grader too :)
E.
Explanation:
Graphing with axis's is ( x, y ) written like that.
For this the x axis of A is between 1 and 2 = 1.5
For the y axis of A, it is between -1.5 and -2 = -1.75
= ( 1.5, -1.75 )
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Have a wonderful day! :-D
Lucie a effectue le calcul : 235×27=6 345
Donner le résulta des produit suivants.
a.23.5 ×27 b.23.5×2.7 c.2.35×0.27
Step-by-step explanation:
a. 23.5 × 27 = 634.5
b. 23.5 × 2.7 = 63.45
c. 2.35 × 0.27 = 0.6345
Which fraction is in simplest form? 2/10 5/12 3/6 4/8
Answer:
5/12
Step-by-step explanation:
2/10 can be simplified to 1/5
3/6 can be simplified to 1/2
4/8 can be simplified to 1/2
5/12 is already simplified
Answer:
4 2/3
Step-by-step explanation:
What is 24-5d=d oooooooooooooooooooo
Answer:
d = 4
Step-by-step explanation:
24 - 5d = d
24 = 6d
24 / 6 = 4
d = 4
Hope this helps :)
Answer:
444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444
Step-by-step explanation:
63/1,000 as a decimal
can you help me please
Hence the correct option is to translate down 2 unit
Transformations can be non-rigid (when the preimage's size or shape is unaltered) or stiff (where the size is changed but the shape remains the same). These are the fundamental guidelines that this concept abides by. It is a straightforward approach to alter 2D forms.
Planar transformations and spaces can be distinguished from one another using the dimensions of the operand sets.
We have the parent function f(X)= x
and transformed function is g(x)= -3f(x+5)-2
the parent function f(x) is translated dawn 2 units and stretched by 5 .
Hence the correct option is to translate down 2 unit
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How old will I be in 2020 if my birthday is september 14, 1995?
Answer:
25
Step-by-step explanation:
Find the surface area on a pyramid 12cm 7cm 7cm
Answer:
A=lw+l(w
2)2+h2+w(l
2)2+h2
Step-by-step explanation:
Kindly solve the following with the cirrect method .SOLVE ALL . I'll give brainliest + thanks + follow
The following percentages are listed below:
12.5 %40 %6.25 %6.667 %41.667 %75 %How to use percentages in real life situationsIn this question we have seven cases of real life situations in which percentages are used. Mathematically speaking, percentages are represented by the following expression:
x = r / r' × 100 (1)
Where:
r - Real quantityr - Maximum quantityNow we proceed to determine quantities related to percentages:
2.8 mm as a per cent of 2.24 cm
x = (2.8 mm / 22.4 mm) × 100 %
x = 12.5 %
What per cent of 1.5 m is 60 cm?
x = (60 cm / 150 cm) × 100 %
x = 40 %
What per cent of 2 kg is 125 g?
x = (125 g / 2000 g) × 100
x = 6.25 %
What per cent of R 6 to 40 p?
x = (40 / 600) × 100
x = 6.667 %
What per cent of a day is 10 h?
x = (10 h / 24 h) × 100
x = 41.667 %
What per cent of 7 1 / 3 m in 5 1 / 2 m ?
x = [(11 / 2) / (22 / 3)] × 100 %
x = 75 %
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The volume of a cube is increasing at a rate of 56 in^3/sec. At what rate is the length of each edge of the cube changing when the edges are 4 in. long? (Recall that for a cube,
V = x^3.)
Answer:
Step-by-step explanation:
Let's denote the volume of the cube as V and the length of each edge as x. Given that the volume of a cube is V = x^3, we can find the rate at which the length of each edge is changing.
We're given that the rate of change of the volume is dV/dt = 56 in³/sec. We want to find the rate of change of the length of each edge, which is dx/dt, when the length of each edge is 6 inches.
First, we differentiate the volume equation with respect to time t:
V = x^3
dV/dt = d(x^3)/dt
Using the chain rule:
dV/dt = 3x^2 * (dx/dt)
Now, we know that dV/dt = 56 in³/sec and x = 6 in. Plugging these values into the equation, we get:
56 = 3 * (6)^2 * (dx/dt)
Solving for dx/dt:
56 = 108 * (dx/dt)
dx/dt = 56 / 108
dx/dt ≈ 0.5185 in/sec (rounded to four decimal places)
So, the rate at which the length of each edge is changing is approximately 0.5185 inches per second when the edges are 6 inches long.
Maria has 8 more scarves than Lucy Lucy has 8 scarves. How many scarves does Maria have, write an equation?
The equation M = 8 + 8 represents the given information. Maria has 16 scarves.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
Let's let "M" represent the number of scarves that Maria has.
According to the problem, "Maria has 8 more scarves than Lucy." We know that Lucy has 8 scarves. So, Maria has 8 more than that.
We can represent this information in an equation:
M = 8 + 8
We add 8 to Lucy's 8 scarves to get the total number of scarves that Maria has, which is 16.
So, Maria has 16 scarves.
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The required Maria has 16 scarves, and the expression models the situation is given as M = 8 + L.
What are equation models?The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
Here,
Let's use the variable "M" to represent the number of scarves that Maria has. Since Maria has 8 more scarves than Lucy, and Lucy has 8 scarves, we can write an equation as,
M = 8 + L
where L is the number of scarves that Lucy has. Substituting L = 8 into this equation, we get:
M = 8 + 8
M = 16
Therefore, Maria has 16 scarves.
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What is the solution of this inequality?
r−6>−11
Drag and drop the choices to correctly complete the inequality.
help
The solution to the given linear inequality, r - 6 > -11, is r > -5
Solving Linear InequalitiesFrom the question, we are to determine the solution of the given inequality
The given inequality is
r - 6 > -11
To determine the solution of the inequality, we will solve the inequality for the unknown variable.
In the inequality, the unknown variable is r.
Solving the inequality for r
r - 6 > -11
Add 6 to both sides
r - 6 + 6 > -11 + 6
r > -5
Hence, the solution is r > -5
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Kesha and Polly were making cookies and cakes using the same recipe. Keesha made 5 batches of cookies and 3 cakes using 21 cups of flour. Polly made 6 batches of cookies and 4 cakes using 26 cups of flour. How many cups of flour does each dessert require?
analyze problem
make system of equations
5x+3y=21
6x+4y=26
using elimination:
x=3,y=2
When Jerry makes concrete he uses cement, sand and gravel in the ratio 1 : 2 : 4. For one job he used 15kg of sand.
a) How much cement and gravel did he use?
b) What is the total mass of the concrete he made?
Answer:
a) 37.5
b) 52.5
Step by step explanation:
a). Cement : Sand : Gravel = 1 : 2 : 4
2x = 15kg
15/2 = 7.5
7.5 x 5 = 37.5
b). 37.5 + 15 = 52.5
The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to find out the fraction of people who appear on the list that are actually caught. Step 2 of 2: Suppose a sample of 283 suspected criminals is drawn. Of these people, 93 were captured. Using the data, construct the 85% confidence interval for the population proportion of people who are captured after appearing on the 10 Most Wanted list. Round your answers to three decimal places.
The 85% confidence interval for the population proportion of people who are captured after appearing on the 10 Most Wanted list is (0.28, 0.38).
What is the confidence interval of the data?Let's calculate the sample proportion;
Sample proportion = 93 / 283 = 0.33
The margin of error of the data can be calculated by;
Margin of error = Z * √(p(1-p) / n)
where:
Z is the z-score for the desired confidence level (in this case, 85%).p is the sample proportion (0.33).n is the sample size (283).Margin of error = 1.96 * sqrt(0.33 * (1-0.33) / 283) = 0.05
The confidence interval can be calculated as
Confidence interval = 0.33 ± 0.05 = (0.28, 0.38)
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Which function has the same range as \(f(x)= - 2\sqrt{x} =-3 + 8\\\)
Both g(x) = 5 - x² and h(x) = \(5 - e^(6-^x^)\)have the same range as f(x) = -2√(x) - 3 + 8, which is (-∞, 5].
To determine which function has the same range as f(x) = -2√(x) - 3 + 8, we need to first find the range of f(x).
The square root function √(x) takes non-negative values as input and gives non-negative outputs, so the expression -2√(x) will always be non-positive. Therefore, the range of f(x) will be all real numbers less than or equal to -3 + 8, which is 5.
In other words, the range of f(x) is (-∞, 5].
So, we need to find a function whose range is also (-∞, 5]. One possible function is g(x) = 5 - x². We can see that when x is zero, g(x) is at its maximum value of 5, and as we increase or decrease x, g(x) will decrease, eventually approaching negative infinity.
Another possible function is h(x) = 5 - e^(-x). When x is negative infinity, e^(-x) is approaching positive infinity, so h(x) is approaching 0. As we increase x, e^(-x) is approaching zero, so h(x) is approaching 5.
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\(e^4^x -4=1\)
(a) State the exact answer for x.
(b) State the approximate answer for x rounded to 4 decimal places.
WILL MARK BRAINLIEST IF YOU SHOW ALL WORK
It looks like you tried to write
e^4^x
which I would interpret as either
\(e^{4^x}\) (so the exponent on e is 4ˣ )
or
\(e^{4x}\) (so the exponent on e is 4x )
as it's shown in the question body.
If you meant the first case,
\(e^{4^x}-4=1\)
\(e^{4^x}=5\)
\(\ln\left(e^{4^x}\right)=\ln(5)\)
\(4^x\ln(e)=\ln(5)\)
\(4^x=\ln(5)\)
\(\log_4\left(4^x\right)=\log_4\left(\ln(5)\right)\)
\(x\log_4(4)=\log_4\left(\ln(5)\right)\)
\(\boxed{x=\log_4\left(\ln(5)\right)}\approx0.3433\)
If you meant the second case,
\(e^{4x}-4=1\)
\(e^{4x}=5\)
\(\ln\left(e^{4x}\right)=\ln(5)\)
\(4x\ln(e)=\ln(5)\)
\(4x=\ln(5)\)
\(\boxed{x=\dfrac{\ln(5)}4\approx0.4024}\)