I need help on understanding this. I'm not sure what the questions mean by Positive or Negative.Is -9x=36 Positive or NegativeIs -3b-12=-7b Positive or Negative Is -8.2d+28.1=3.6d Positive or Negative Is 2(4t-5)=6t-18 Positive or Negative
Answers
Answer
1) The value of x is negative
Explanation:
Given the equations, we are to check whether the result will give a negative or postive value;
Given the equation;
-9x = 36
Divide both sides by -9
-9x/-9 = 36/-9
x = -4
Hence the value of x is negative
Related Questions
help me pls help me
Answers
Answer:
Well I’m not sure what Answers do you want
Step-by-step explanation:
Answer the questions below to find the total surface area of the can.
Answers
Ab=3.14xRadious to the power of 2
then to the area of the rectange you do B x H = YOUR ANSWER
use the cummutative property of addition to write an expression equivalent to 15a+b
Answers
Answer:
15a + b = b + 15a
lol is this right?
Step-by-step explanation:
Pls write the answer.
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Answer:
the first one is the correct answer
prove that:- (1-sinA)(1+sinA)÷(1+cosA)(1-cosA)=cot^2A
Answers
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
sin²x + cos²x = 1 , then
sin²x = 1 - cos²x and cos²x = 1 - sin²x
Consider the left side
\(\frac{(1-sinA)(1 + sinA)}{(1+cosA)(1-cosA)}\) ← expand numerator/denominator using FOIL
= \(\frac{1-sin^2A}{1-cos^2A}\)
= \(\frac{1-(1-cos^2A)}{1-(1-sin^2A)}\)
= \(\frac{1-1+cos^2A}{1-1+sin^2A}\)
= \(\frac{cos^2A}{sin^2A}\)
= cot²A = right side , thus proven
I need help ASAP is anyone available
Answers
Answer:
C
Step-by-step explanation:
The graph has asymptotes at x = 2 and x = -1 corresponding to the denominator of option C.
Caleb’s parents gave him a used car, and he pays his own insurance, which is $110 a month. His gas and maintenance expenses usually run $65 a month. He also has a cell phone and pays his parents $30 each month for his share of the family plan.
What are Caleb's total regular monthly expenses?
Answers
110 + 65 + 30 = $205
Answer: Calebs total regular monthly expenses would be $205
Step-by-step explanation:
Hope this helps
Find the angle of “z”. A triangle has 180 degrees.
Answers
Answer:
z=26
Step-by-step explanation:
85+69
154
180-154
26
i hope this helps!
In your own words, please describe the difference between the regression equation ^y= b0 +b1xt and the regression equation Y=B0+B1x
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In summary, the difference between these two regression equations is mainly in the notation used to represent the regression coefficients, with lowercase letters used in simple linear regression models and uppercase letters used in multiple linear regression models.
What is equation?In mathematics, an equation is a statement that asserts that two mathematical expressions are equal to each other. It usually contains one or more variables, which are placeholders for values that can vary. Equations are used to describe mathematical relationships and to solve problems. They can take many forms, such as linear equations, quadratic equations, polynomial equations, exponential equations, and so on. The specific form of an equation depends on the type of problem being solved and the mathematical relationships involved.
Here,
Both the regression equations ^y = b0 + b1x and Y = B0 + B1x are used to model the relationship between a dependent variable (y or Y) and an independent variable (x). However, the key difference between these two equations lies in the notation used to represent the regression coefficients.
In the first equation ^y = b0 + b1x, the regression coefficients are represented with lowercase letters (b0 and b1). This notation is typically used in simple linear regression models where there is only one independent variable. The hat symbol (^) over the y indicates that this is an estimated value of y based on the model.
In the second equation Y = B0 + B1x, the regression coefficients are represented with uppercase letters (B0 and B1). This notation is typically used in multiple linear regression models where there are two or more independent variables. The capitalization of the letters helps to distinguish them from the coefficients in the simple linear regression model.
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Help with functions!! Thanks!
Answers
Answer:
-2
2
Step-by-step explanation:
just use common sense. what does "local maximum" mean ?
it means a point, where the curve in the nearest neighborhood does not have a higher value. where the curve comes from smaller values, turns around and leaves with smaller values again.
(a) there is one point in this graph : at x = -2
(b) and that maximum value at that point is y = 2
Tirzah wants to put a fence around her garden. She has 22 yards of fence material. Does she have enough to go all the way around the garden? Explain why or why not.
PLEASE EXPLAIN THE STEPS
Answers
Answer:
No becasue she only has 22 yard and the total she needs is more than 23 yards
Divide 14x3 − 21x2 − 7x by −7x.
A) −2x2 + 3x + 1
B) −2x2 + 3x − 1
C) −2x3 − 3x2 − x
D) −2x2 + 3x
Answers
Answer:
A
Step-by-step explanation:
simply divide each ter by -7x ..
Yuri has a large rectangular card measuring 1.2 meters by 0.8 meters, he wants to cut it up to make small rectangular cards each measuring 13 centimeters by 11.5 centimeters. Work out the largest number of cards that he can make
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The number of smaller card that could be cut from the larger rectangular card is 64.
How to find the area of a rectangle?Yuri has a large rectangular card measuring 1.2 meters by 0.8 meters, he wants to cut it up to make small rectangular cards each measuring 13 cm by 11.5 cm.
Let's convert the units.
1.2 m = 120 cm
0.8 = 80 cm
Therefore, let's find the area of the rectangular card.
area of the large rectangular card = lw
where
l = lengthw = widtharea of the large rectangular card = 120 × 80
area of the large rectangular card = 9600 cm²
area of each small rectangular card = 11.5 × 13.5
area of each small rectangular card = 149.5 cm²
Therefore,
largest number of card that can be cut out from the larger card = 9600 / 149.5 = 64.2140468227
largest number of card that can be cut out from the larger card ≈ 64
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Lin's father is paying for a $25 meal. He has a 15%-off coupon for the meal. After the discount, a 8% sales tax is applied.
What does Lin's father pay for the meal?
Solve for 20 points and show work
Answers
first you would find 15% as a decimal
then take the decimal and multiply it by the total amount needed to pay
the find the sales tax percent as a decimal
multiply that decimal by the product found earlier
add the two products found together to get your new total
A cube has side length a. The side lengths are decreased to 50% of their original size. Write an expression in simplest form for the volume of the new cube in terms of a. An expression is .
Answers
Answer: (a * 50%)^3
Step-by-step explanation:
length = a
(a * 50%)^3
If a would've been the length and would've been decreased to 50%, the volume would be equal to that expression.
what is midpoint if tu =4× and uv =X +9
Answers
Answer:
12Step-by-step explanation:
Given
TU = 4xUV = x + 9Finding the value of x
TU = UV4x = x+93x = 9x = 3Midpoint = 4x = 4*3 = 12
Simplify 2x-(-3x+9). 5x-9 –x-9 x+9
Answers
Answer:
5x - 9
Step-by-step explanation:
2x -(-3x + 9)
2x + 3x - 9) DISTRIBUTE -1
5x - 9 COMBINE LIKE TERMS
Subtract (3x + 5) - (x + 2)?
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Answer:
2x+3
Step-by-step explanation:
k=10/8
ggggggggggggggggggg
Answers
can you pls also explain
Answers
Answer:
1.33 secondsStep-by-step explanation:
Use the given equation and substitute h with 9:
- 9 = -16t²t² = 16/9t = √(16/9)t = 4/3 ≈ 1.33Answer:
0.75
Step-by-step explanation:
16t² = 9
t² = 9/16
t = √{9/16}
t = 3/4
t = 0.75 s
Let f(x) = 4x^2-13 The quadratic function g(x) is f(x) translated 3 units up . What is the equation for g(x) in simplest form?
Answers
The transformation of f(x) to g(x) is f(x) is shifted up 3 units to g(x), there is shifting of 3 units means there is upward shifting.
What if transformation of a function?Transformations of functions mean transforming the function from one form to another. Transformation of functions is a unique way of changing the formula of a function minimally and playing around with the graph.
The given function f(x)= 4x^2 - 13
In the graph there is vertical shift from f(x) to g(x)
We know, the vertical shift depends on the value of k
When k>0, the vertical shift is described as
g(x)=f(x)+k- The graph is shifted up k units.
g(x)=f(x)−k - The graph is shifted down k units.
If we closely look at the graph the vertical distance in positive y-axis,
the distance between line f(x) and g(x) is from 0 to 3.
So, there is shifting of 3 units means there is upward shifting.
i.e., k=3
Hence, f(x) is shifted up 3 units to g(x).
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Find the length of side AB. Round to the nearest hundredth inch.
Answers
The value of length of side AB is,
⇒ AB = 5 units
We have to given that;
The figure is shown a trapezoid.
Hence, By using Pythagoras theorem we get;
⇒ AB² = 4² + (5.25 - 2.25)²
⇒ AB² = 16 + 3²
⇒ AB² = 16 + 9
⇒ AB² = 25
⇒ AB = √25
⇒ AB = 5 units
Therefore, The value of length of AB is,
⇒ AB = 5 units
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translate in terms of x then solve the algebra equation the sum of a number and 3 is subtracted from 10 the result is 5
Answers
Answer:
x=2
Step-by-step explanation:
10 - (x + 3) = 5
To solve for x, we can start by simplifying the left side of the equation:
10 - (x + 3) = 5
10 - x - 3 = 5
7 - x = 5
Next, we can isolate x on one side of the equation by subtracting 7 from both sides:
7 - x = 5
7 - x - 7 = 5 - 7
-x = -2
Finally, we can solve for x by dividing both sides of the equation by -1:
-x = -2
x = 2
Therefore, the solution to the equation is x = 2.
Solve the following inequality for x.
-26 + 13r + 2 > 2 – 13r
Answers
Hey there!
\(Answer:\boxed{r>1}\)
\(-26+13r+2>2-13r\)
Let's start by simplifying both sides of the inequality.
\(13r-24>-13r+2\)
Now add 13r to both sides of the inequality.
\(13r-24+13r>-13r+2+13r\\26r-24>2\)
Now add 24 to both sides of the inequality.
\(26r-24+24>2+24\\26r>26\)
In our fourth/last step, we will divide both sides of the inequality by 26.
\(\frac{26r}{26}>\frac{26}{26}\\ r>1\)
\(\boxed{r>1}\text{ is your final answer.}\)
Hope this helps!
\(\text{-TestedHyperr}\)
6. A shoe store stocks x pair of sneakers and y pairs of sandals. During a promotion, a pair of sneakers is priced at $50 and a pair of sandals at $36. The shop manages to sell half the sneakers and 80% of the sandals. Write an expression for the total amount of sales the store makes.
Answers
The expression for the total amount of sales the store makes will be:25s + 28.8p
How to illustrate the expression?Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both.
From the information, the shoe store stocks x pair of sneakers and y pairs of sandals. During a promotion, a pair of sneakers is priced at $50 and a pair of sandals at $36. The shop manages to sell half the sneakers and 80% of the sandal.
Let sneakers = s
Let sandals = p
An expression for the total amount of sales the store makes will be: 1/2(50s) + 0.8(36p).
= 25s + 28.8p
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The ratio of the number of roses to the number of lilies in a
garden is 4:3. If there are 42 lilies in the garden, how many
roses are there in the garden?
Answers
Answer:
56:42
Step-by-step explanation:
42 divided by 3 is 14. 14 times 4 is 56.
The first term of a geometric sequence is 5 and the multiplier, or ratio, is –2. What is the sum of the first 5 terms of the sequence?
Answers
Step-by-step explanation:
s1 = 5
s2 = s1 × -2 = 5×-2 = -10
s3 = s2 × -2 = -10 × -2 = 20
...
now, we could do all that manually.
but there is also a formula for geometric sequence.
in fact, there are 2 - one for finite and one for infinite sequences.
and I was not completely honest, each of these 2 had some sub-forms depending on the size of the multiplier or ratio.
since we need the sum of the first 5 terms, which of the 2 do you think we need ?
of course, finite, because 5 is a normal number we can "touch". it is not infinity.
so, the formulas for finite sums of geometric sequences are :
if |r| < 1, Sn = a(1 - r^n)/(1 - r)
if |r| > 1, Sn = a(r^n - 1)/(r - 1)
if r = 1, Sn = na
if r = -1, then Sn = a or 0 depending on if n is odd or even.
the sequence is in general
s1 = a
sn = sn-1 × r
in our case a = 5, r = -2.
so, what form of the formula do we need ?
|-2| = 2, and 2 > 1, so ...
S5 = 5(-2^5 ‐ 1)/(-2 - 1) = 5(-32 - 1)/-3 = 5×-33/-3 =
= 5 × 11 = 55
quick check, as the 5 terms are
5
-10
20
-40
80
and their sum is : 55
correct !
you want to talk from home to a shoe store that is 5/8 miles away. you stop for a rest after 1/4 miless. how much farther do you have to walk
Answers
Answer:
\(\frac{3}{8}\) miles
You have to walk \(\frac{3}{8}\) more miles to get to the shoe store.
Step-by-step explanation:
So first, we have to convert the \(\frac{1}{4}\) to a fraction that has a denominator of 8, which we are going to multiply 2 on both top & bottom. Equation-
\(\frac{1}{4}\) * \(\frac{2}{2}\) = \(\frac{2}{8}\)
And then, the house to shoe store is \(\frac{5}{8}\) miles as we know from the question. We subtract the distance by \(\frac{2}{8}\), because that is how much we've walked already. And we know that when we are subtracting fraction, we need to make sure the denominators are the same and we ONLY subtract the numerator. So the equation would be like this-
\(\frac{5}{8}\) - \(\frac{2}{8}\) = \(\frac{3}{8}\)
And we got the answer- \(\frac{3}{8}\) miles
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Solve for x: (5 points)
negative 4 over 3, multiplied by x minus 6 equals negative 26
a
−27
b
−15
c
15
d
27
Answers
Answer:
the problem is like that or is showing u how are the equations ?
Can someone do this real quick plz
Answers
Answer:
(3.5, 2)
Step-by-step explanation:
From the attachment, we have:
\(H = (1,1)\)
\(J= (2,3)\)
\(K=(6,3)\)
\(L = (5,1)\)
Required
Determine the point of intersection
To do this, we simply calculate the midpoints of the diagonals; which are:
HK and JL
Midpoint is calculated as:
\(M = \frac{1}{2}(x_1 + x_2,y_1+y_2)\)
For HK:
\(M = \frac{1}{2}(1+6,1+3)\)
\(M = \frac{1}{2}(7,4)\)
\(M = (3.5,2)\)
For JL:
\(M = \frac{1}{2}(2+5,3+1)\)
\(M = \frac{1}{2}(7,4)\)
\(M = (3.5,2)\)
For both diagonals, the coordinate of the midpoint is (3.5, 2).
Hence, the point of intersection is: (3.5, 2)