Is the following relation a function?


Yes

No

Answer:

-36

Step-by-step explanation:

2 [3(-1) - 5(3) ]

2 [-3-15]

2[-18]

-36

Answer:

-36

Step-by-step explanation:

since you say x=-1and y=3, you will put 1 in where x is and 3 where y is ,that is 2(3×-1]-5×3)

2(-3-15) then you subtract the bracket, that is 3-15 and it will give you -18. Then you use the 2 outside the bracket to multiply -18 ,that is 2×-18then it will give -36

Answer:

23.45 meters

Step-by-step explanation:

To solve, you do 3.35*7, which gives you 23.45

Answer:

n = -32

Step-by-step explanation:

quotient means divide

n/-4 = 8

Multiply each side by -4

n/-4 *-4 = 8*-4

n = -32

Answer: 43) y = -x² - 2x + 3

              44) y = (1/2)x² + 2x + 3

Step-by-step explanation:

43) Since the x-intercepts and another point are given, use the Intercept form:

          y = a(x - p)(x - q) where

Given: p = -3,    q = 1     (x, y) = (-1, 4)

y = a(x - p)(x - q)

y = a(x + 3)(x - 1)

4 = a(-1 + 3)(-1 - 1)

4 = a(2)(-2)

4 = -4a

-1 = a

Equation: y = -1(x + 3)(x - 1)

Expand:   y = -(x² - x + 3x - 3)

                   = -(x² + 2x - 3)

                   = -x² - 2x + 3

***********************************************************************************

Since the vertex and another point are given, use the Vertex form:

              y = a(x - h)² + k   where

Given: (h, k) = (-2, 1)  and   (x, y) = (0, 3)

y = a(x - h)² + k

y = a(x + 2)² + 1

3 = a(0 + 2)² + 1

3 = 4a + 1

2 = 4a

1/2 = a

Equation: y = (1/2)(x + 2)² + 1

Expand:   y = (1/2)(x² + 4x + 4) + 1

                  = (1/2)x² + 2x + 2 + 1

                 =  (1/2)x² + 2x + 3

Answer: 7 half- gallons of paint

Step-by-step explanation:

3 divided by .5 is 6, so 6 half-gallons will cover the 3 gallons. Another half-gallon is needed to cover the remaining 1/4 gallon needed, and Jade will have 1/4 gallon of paint left.

Answer:

yes this person did because I have the same question

Step-by-step explanation:

Answer: 23 units just took the test

Answer:

The answer is 23 units.

Step-by-step explanation:

Answer:

y= 2-3x

Step-by-step explanation:

Answer:

38 Tables

Step-by-step explanation:

182 + 274 = 456

456 / 12 = 38

Answer:

A

Step-by-step explanation:

Both angles are the same so subtract 1 from 64.

64-1=63

So now you have to find out what times 3 is 63. 21 x3= 63 sooo 63+1 is 64. so x is 21

Answer:

1. 3,002,508

2. 8,473,211

rounded to nearest hundred thousand: 8,500,000

Step-by-step explanation:

hope this helps.

[tex]1.)\;8+3.5+15=26.5\\2.)\;15+7+5=27\\3.)7+8+6=21\\4.)35.15+14.18+17.16=66.49\\5.)\;8+5+7=20[/tex]

Step-by-step explanation:

Hey there!

Let's add them.

1). 8,3.5, 15

[tex] = 26.5[/tex]

2). 15 + 7 + .5

[tex] = 22.5[/tex]

3). 7, .8, .6

[tex] = 8.4[/tex]

4). 35.15, 14.18, 7.16

[tex] = 49.33 + 7.16[/tex]

[tex] = 56.49[/tex]

5). .8, 5, .7

[tex] = 6.5[/tex]

Hope it helps...

Answer:

203 is the median value.

Step-by-step explanation:

The range is 62, minimum is 174, and the maximum is 236. The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number. This is the median. If there are 2 numbers in the middle, the median is the average of those 2 numbers.

Answer: 1/6

Step-by-step explanation: 2/3 / 4 is 1/6 or 0.1666666....

Answer:

just add the zeros in 507

so, you will get 50700

Answer:

B

Step-by-step explanation:

[tex]5.72+872.56=878.28[/tex]

ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

Answer:

A,B,D are true C is false

Answer:

The distance between the two points is 13 units.

Step-by-step explanation:

take the test

Answer: x^2+6x-15

Step-by-step explanation:

Answer:

I am pretty sure it is A. 85°

Answer:

Step-by-step explanation:

[tex]f(x) = 7x[/tex]          [tex]g(x) = \sqrt{x}[/tex]          [tex]h(x) = x^2 + 7[/tex]

11)

[tex]g(f(4)) = \sqrt{7 \cdot 4} = \sqrt{28} = 2\sqrt{7}[/tex]

12)

[tex]h(g(49)) = 49 + 7 = 56[/tex]

13)

[tex]g(f(x)) = \sqrt{7x}[/tex]

14)

[tex]h(g(x)) = (\sqrt{x})^2 + 7 = x + 7[/tex]

15)

[tex](g \circ h)(x) = g(h(x)) = \sqrt{x^2 +7}[/tex]

16)

Let [tex]y = f^{-1}(x)[/tex]  and [tex]f(y) = x[/tex]

[tex]4y - 3 = x\\4y = x + 3\\y = \frac{x + 3}{4}\\\\f^{-1}(x) = \frac{x + 3}{4}[/tex]

17)

Let [tex]y = g^{-1}(x)[/tex]  and [tex]g(y) = x[/tex]

[tex]\frac{2y + 7}{3} = x\\ 2y + 7 = 3x\\2y = 3x - 7\\y = \frac{3x - 7}{2} \\\\g^{-1}(x) = \frac{3x - 7}{2}[/tex]

Ivy - Your definition is incorrect......

Ethan - Excellent!.......

Ebuka - Angle Measures help us describe the rotations...............

Hope that helped

Ivy's definition is incorrect and lacks clarity, Ethan's definition is praised for its accuracy and intellect, Ebuka's definition is acknowledged for its understanding of angle measures but does not align with the geometric object of an angle.

Based on the information provided, we can match the teacher's comments to the definitions as follows:

a. Ivy's definition: The teacher's comment is "Your definition is incorrect, and its precise meaning is unclear." This comment matches Ivy's definition as it implies that Ivy's definition is incorrect and lacks clarity.

b. Ethan's definition: The teacher's comment is "Excellent! You have a razor-sharp intellect!" This comment matches Ethan's definition as it praises the accuracy and intelligence reflected in his definition.

c. Ebuka's definition: The teacher's comment is "Angle measures help us describe rotations, but your definition doesn't work for the geometric object we call an angle." This comment matches Ebuka's definition as it acknowledges the relevance of angle measures in describing rotations but points out that his definition does not align with the specific geometric object called an angle.

Learn more about Definition here:

https://brainly.com/question/9823471

#SPJ2

Answer:

No, we don't have sufficient evidence to support the claim that the doors are either too long or too short.

Step-by-step explanation:

We are given that a lumber company is making doors that are 2058.0 millimeters tall. If the doors are too long they must be trimmed, and if the doors are too short they cannot be used.

A sample of 11 is made, and it is found that they have a mean of 2043.0 millimeters with a standard deviation of 25.0.

Let [tex]\mu[/tex] = population mean length of doors.

So, Null Hypothesis, [tex]H_0[/tex] : [tex]\mu[/tex] = 2058.0 millimeters      {means that the mean length of doors is 2058.0 millimeters}

Alternate Hypothesis, [tex]H_A[/tex] : [tex]\mu\neq[/tex] 2058.0 millimeters     {means that the doors are either too long or too short}

The test statistics that will be used here is One-sample t-test statistics because we know about the population standard deviation;

                               T.S.  =  [tex]\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }[/tex]  ~ [tex]t_n_-_1[/tex]

where, [tex]\bar X[/tex] = sample mean = 2043.0 millimeters

             s = sample standard deviation = 25.0 millimeters

             n = sample of doors = 11

So, the test statistics =  [tex]\frac{2043.0-2058.0}{\frac{25.0}{\sqrt{11} } }[/tex]

                                     =  -1.989  

The value of t-test statistics is -1.989.

Now, at a 5% level of significance, the t table gives a critical value between -2.228 and 2.228 at 10 degrees of freedom for the two-tailed test.

Since the value of our test statistics lies within the range of critical values of t, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region.

Therefore, we conclude that the mean length of doors is 2058.0 millimeters.

35 is the answer

Explanation, the sum of interrior angme is 180degree

x+(3x+40)= 180

or, 4x= 180-40

or, x= 140÷ 4

or x = 35

Answer:

B

Step-by-step explanation:

For the 2 lines to be parallel, then the 2 angles are same- side interior angles and are supplementary, thus

x + 3x + 40 = 180 , that is

4x + 40 = 180 ( subtract 40 from both sides )

4x = 140 ( divide both sides by 4 )

x = 35 → B

Answer

15%

Step-by-step explanation:

I think the answer is 15% because when we talk about percentile, we are actually subtracting from 100% in simpler terms. If we say a 85th percentile, it actually means 15%.