Answer:
86km/h
80km/h
Step-by-step explanation:
weighted average
bus took 5hrs so van took 3.75 hrs
300/3.75
In an annual report to investors, an investment firm claims that the share price of one of their bond funds had very little variability. The report shows the average price as $18.00 with a variance of 0.11. One of the investors wants to investigate this claim. He takes a random sample of the share prices for 10 days throughout the last year and finds that the standard deviation of the share price is 0.1448. Can the investor conclude that the variance of the share price of the bond fund is different than claimed at α=0.1? Assume the population is normally distributed.
State the null and alternative hypotheses. Round to four decimal places when necessary.
Answer:
.
Step-by-step explanation:
7x+4=25
two step equation
Answer:
x = 3
Step-by-step explanation:
7x + 4 = 25
7x + 4 - 4 = 25 - 4
7x = 21
x = 3
Answer:
x = 3
Step-by-step explanation:
Hey! Hope this helps you!
Have a nice day <3
PQ and QR are perpendicular. Point s lies in the interior of angle PQR.if m/angle PQS =4+7a and m angle SQR=9+4a, find m angle PQS
Answer:
angle PQS = 53°
Step-by-step explanation:
You want the measure of angle PQS given that right angle PQR is divided into angles PQS = 4+7a and SQR = 9+4a.
Angle additionThe angle addition theorem tells you the whole is the sum of the parts:
∠PQR = ∠PQS +∠SQR
90° = (4 +7a)° +(9 +4a)°
Solution0 = -77 +11a . . . . . . . . . . divide by ° and subtract 90
7 = a . . . . . . . . . . . . . . add 77 and divide by 11
The measure of angle PQS is ...
∠PQS = (4 +7·7)° = 53°
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you want to install molding around the circular room. How much it would cost you to install the molding that you picked if it cost $4.22 per foot?
The cost of the molding is given as follows:
$119.30.
What is the measure of the circumference of a circle?The circumference of a circle of radius r is given by the equation presented as follows:
C = 2πr.
The parameters for this problem are given as follows:
d = 9 -> r = 4.5.
(as the radius is half the diameter)
Hence the circumference is given as follows:
C = 2 x π x 4.5
C = 28.27 ft.
The cost is of $4.22 per ft, hence the total cost is given as follows:
4.22 x 28.27 = $119.30.
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Los puntos A(13, a) y B (4,b) pertenecen a una parábola de vértice V (h, 1) Además el eje focal es paralelo al eje de las abscisas ,su parámetro es p y A, B están
contenidos en la recta 2x - y - 13 = 0. Hallar a" + bP.
The points on a parabola with the focal axis parallel to the abscissa axis, of parameter p and A, B is -12.
How to calculate parameters?Since A and B are points on the parabola, write two equations using the general form of the parabolic equation:
(x - h)² = 4p(y - 1)
The focal axis is parallel to the x-axis, so the distance from the vertex to the focus is equal to p. Therefore, use the distance formula to write an equation for the distance between the vertex and point A:
√((13 - h)² + (a - 1)²) = p
Similarly, write an equation for the distance between the vertex and point B:
√((4 - h)² + (b - 1)²) = p
A and B lie on the line 2x - y - 13 = 0, so substitute the x and y coordinates of A and B into this equation and solve for a and b:
2(13) - a - 13 = 0
2(4) - b - 13 = 0
Solving these equations gives us a = 3 and b = -5.
Now three equations and three unknowns (a, b, and h):
√((13 - h)² + 4) = p + 1
√((4 - h)² + 36) = p + 1
2h - 3 - 13 = 0
The third equation simplifies to 2h = 16, or h = 8.
Substituting this value of h into the first two equations and squaring both sides:
(13 - 8)² + 4 = (p + 1)²
(4 - 8)² + 36 = (p + 1)²
Simplifying these equations and solving for p gives us p = 3.
Finally, find a" + bP by substituting the values found for a, b, and p:
a" + bP = 3 + (-5)(3) = -12
Therefore, the solution is a" + bP = -12.
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PLss answer I will give brainliest
Answer:
I pretty sure it's 3/14
Step-by-step explanation:
There are 6 small fish and 8 large fish- find the total. 6+8=14 (14 will be the denominator)
Half of the small fish are red so 6/2=3 (3 is the numerator)
The probability of you picking one small red fish is 3/14
Is 604,892 divisible by 4?
Answer:
yes it is 604892÷4=151,223
Convert the following angle from degrees to radians. Express your answer in simplest
form.
255°
Answer:
(17/12)π radians
Step-by-step explanation:
π radians = 180º
255 * (π/180) = (17/12)π
Find the area of the region bounded by
• y = √x,
• y = 2-x², and
y = -√2x.
The area of the Region bounded by y = √x, y = 2-x², and y = -√2x is $\frac{32}{15}$.
To find the area of the region bounded by y = √x, y = 2-x², and y = -√2x, we need to graph the equations and determine the points of intersection. Then we can integrate to find the area.
Firstly, we'll graph the equations and find the points of intersection:
y = √xy = 2-x²y = -√2xGraph of y = √x, y = 2-x², and y = -√2xWe need to solve for the points of intersection, so we'll set the equations equal to each other and solve for x:√x = 2-x²√x + x² - 2 = 0Let's substitute u = x² + 1:√x + u - 3 = 0√x = 3 - u
(Note: Since we squared both sides, we have to check if the solution is valid.)u = -2x²u + x² + 1 = 0 (substituting back in for u
)Factoring gives us:u = (1, -2)We can then solve for x and y:x = ±1, y = 1y = 2 - 1 = 1, x = 0y = -√2x = -√2, x = 2y = 0, x = 0Graph of y = √x, y = 2-x², and y = -√2x with points of intersection to find the area, we need to integrate.
The area is bounded by the x-values -1 to 2, so we'll integrate with respect to x:$$\int_{-1}^0 (2 - x^2) - \sqrt{x} \ dx + \int_0^1 \sqrt{x} - \sqrt{2x} \ dx$$
We can then simplify and integrate:$$\left[\frac{2x^3}{3} - \frac{2x^{5/2}}{5/2} + \frac{4}{3}x^{3/2}\right]_{-1}^0 + \left[\frac{2x^{3/2}}{3} - \frac{4x^{3/2}}{3}\right]_0^1$$$$= \frac{4}{3} + \frac{4}{3} - \frac{4}{15} + \frac{4}{3} - \frac{4}{3}$$$$= \frac{32}{15}$$
Therefore, the area of the region bounded by y = √x, y = 2-x², and y = -√2x is $\frac{32}{15}$.
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Luis has two 1-gallon cans of paint. The can of blue paint is 5/6 full, and the can of red paint is 7/8 full. Which can has more paint?
Answer:
It is the can of red paint
Step-by-step explanation:
Answer:
red paint
Step-by-step explanation:
Put them in a decimal and its the bigger number if this helps please put brainliest
A package of 25 fishing hooks costs $9.95 , while a package with 40 hooks costs $13.99 . Which is the better buy? Round your answer to the nearest cent if necessary.
Therefore, the package with 40 hooks is the better buy in terms of cost efficiency.
To determine which package is the better buy, we need to compare the cost per hook for each package.
For the package of 25 hooks costing $9.95, we divide the total cost by the number of hooks:
Cost per hook = $9.95 / 25 = $0.398
Rounding to the nearest cent, the cost per hook is $0.40.
For the package of 40 hooks costing $13.99, we divide the total cost by the number of hooks:
Cost per hook = $13.99 / 40 = $0.3498
Rounding to the nearest cent, the cost per hook is $0.35.
Comparing the two costs per hook, we can see that the package with 40 hooks for $13.99 offers a better deal, as the cost per hook is lower at $0.35.
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A sandman earns a commission of 26%. One week he had sales of $24400. Find the commission for the week.
Answer:
6344
Step-by-step explanation:
Find 26% of 24400
24400 * 26%
24400 * .26
6344
15 divided by 6 2/3 =
A. 100
B. 2/14
C. 100 1/4
D. 2 3/4
Which image shows a reflection of the figure below? quick!!!!
Answer:
a
Step-by-step explanation:
A plant is already 51 centimeters tall, and it will grow one centimeter every month. The plant's height,
centimeters), after m months is given by the following function.
H (m)=51+m
What is the plant's height after 36 months?
centimeters
X
Step-by-step explanation:
fufj5655 and I hope that you will be able to help me with the following to help me with the application for the role of the temple and many other people in the forest and a small village known as change in indirect speech to be the oldest
If P(x) = x² + x + 2, find P(7).
P(7)=
Answer:
P(7) = 58
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
FunctionsFunction NotationStep-by-step explanation:
Step 1: Define
P(x) = x² + x + 2
P(7) is x = 7
Step 2: Evaluate
Substitute in x [Function]: P(7) = 7² + 7 + 2[Output] Exponents: P(7) = 49 + 7 + 2[Output] Addition: P(7) = 56 + 2[Output] Addition: P(7) = 58what is the solution?
x=3 and y=4
x=5 and y=4
x=4 and y=3
x=3 and y=2
Answer:
give me more instructions so i can actually help
Step-by-step explanation:
what will be the appropriate scale to represent the below table
We can write the scale factor for the table as {K} = y/x.
What is scaling?Scaling is a procedure through which we draw an object that is proportional to the actual size of the object. Scaling in geometry means that we are either enlarging or shrinking figures so that they retain their basic shape.Given is to determine the scale for the given table.
Since the table is not given, we can learn how to find the scale for the table. A table will be consisting of {x} and {y} coordinates.So, we can write the scale factor as : {K} = y/xTherefore, we can write the scale factor for the table as {K} = y/x.
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If EF= 2x - 7, FG= 3x - 8, and EG= 31, find the values of x, EF, and FG.
Helppppppp me withhhhh question 4
Answer:
11 brushes
Step-by-step explanation:
14+y=25
-14 . -14
y=11
!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
C
Step-by-step explanation:
it's an acute angle so it has to less than 90 and 71 just seems like it's too much
What is the total weight of the bags that weighed /8 pound each?
The total weight of Rice that Mark buys is given as follows:
2.5 pounds.
How to obtain the total weight?The total weight of Rice that Mark buys is obtained applying the proportions in the context of the problem.
The weight of each bag is given as follows:
5/8 pounds = 0.625 pounds.
The number of bags is given as follows:
4 bags.
Hence the total weight of Rice that Mark buys is given as follows:
4 x 0.625 = 2.5 pounds.
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Write x^2 - 8x + 10 in the form
(x + a)^2 + B
\(x^2-8x+10=x^2-8x+16-6=(x-4)^2-6\)
I need this question
Write 0.7 as a fraction in simplest form
Answer: 7/10.
Step-by-step explanation: To write 0.7 as a fraction, you can use the following steps:
Multiply 0.7 by 10 to get 7.0
Write 7.0 as a fraction: 7.0 = 7/1
Simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor (GCD), which is 1 in this case: 7/1 = 7/1
Therefore, 0.7 can be written as a fraction in simplest form as 7/10.
Use the vertex and intercepts to sketch the graph of the quadratic function. Give the equation for the parabola's axis of symmetry. Use the parabola to identify the function's domain and range.
f(x)=9-(x-2)^2
The range of the function is the set of all y-values for which the function is defined, which is all real numbers y≤13.
What is number?Number is a mathematical entity used to represent a computer magnitude it can be symbol or a combination of simple you should in order to take quantity such as the two, five, seven, three or eight number are used to verify the context including counting measuring and computing.
The graph of the quadratic function can be sketched by first finding the vertex and intercepts. The vertex of the parabola is the point (2,9) and the intercepts are the points (0,13) and (4,5). Plotting these points and connecting them with a smooth curve will give the graph of the quadratic function.
The equation for the parabola's axis of symmetry is x = 2. This means that the vertex is located at the center of the parabola and that the parabola is symmetrical about the x-axis.
The domain of the function is the set of all x-values for which the function is defined, which is all real numbers x≥0. The range of the function is the set of all y-values for which the function is defined, which is all real numbers y≤13.
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Use a calculator to find the correlation coefficient of the data set.
Answer:
–0.985
The correct answer is D
Write the equation x² + 6x + y² – 8y = 19 in standard form.
Question 17 options:
1)
(x – 3)²+ (y – 4)² = √44
2)
(x + 3)² + (y + 4)² = 44
3)
(x + 3)² + (y – 4)²= 44
4)
(x + 3)² + (y – 4)² =√44
Answer:
Formula used :
x²+2xy+y² = (x+y)² x²-2xy+y² = (x-y)²\( →{x}^{2} + 6x + {y}^{2} - 8y = 19 \\ ({x}^{2} + 2.3.x + {3}^{2} ) +({y}^{2} - 2.4.y + {4}^{2} ) = 19 + {3}^{2} + {4}^{2} \\ {(x + 3)}^{2} + {(y - 4)}^{2} = 19 + 9 + 16 \\ \boxed{ {(x + 3)}^{2} + {(y - 4)}^{2} = 44}✓\)
3) (x+3)²+(y-4)²=44 is the right answer.Answer:
option C
Step-by-step explanation:
using (X + 3)² + ( y - 4)² = 44
gives you directly x² + 6x + y² - 8y = 19
A cultural researcher tests whether individuals from different cultures share or differ in the belief that dreams have meaning.
Independent Variable: ________
Quasi-Independent Variable: ________
Dependent Variable: ________
IV individuals from different cultures
DV the belief that dreams have meaning.
Independent Variable: Culture
Belief in the meaning of dreams is a quasi-independent variable (since it cannot be manipulated or assigned randomly)
The response to whether or not dreams have meaning is the dependent variable.
What are the three kinds of variables?An experimental investigation typically contains three types of variables: independent variables, dependent variables, and controlled variables.
What is the independent or quasi-independent variable?A compared to the rest of the country. Because the variable levels are pre-existing, it is not possible to assign participants to groups at random.
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How can you solve the equation for 8(-3d+2)=88
Answer:
-3
Step-by-step explanation:
8(-3d + 2) = 88 divide both sides by 8
-3d + 2 = 11 rest 2 on both sides
-3d = 9 divide both sides by -3
d = -3
Answer:
i think D it's 110 cuz : 8×-3d and 8×2 = -24d+2=88 so D=88+24-2=110