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3 years ago

PLEASE HELP ME~!!!!!!!

Mathematics

1 answer:

MAXImum [283]3 years ago

7 0

Answer: y= 5x + 3

Step-by-step explanation:

Lol literally so easy when you understand it so:

the formula for slope intercept form is:

y= mx + b

in this case just plug in the values

hope this helps ;)

also can I get brainliest pls?

You might be interested in

How do you graph f(x)= |x-2|+5

ElenaW [278]

For this we are going to use the equation f(x)=a|x+h|+k
Since there is no a shown, we know that a=1. This means the slope of the graph by 1's. (slope=1 one on the right side and slope=-1 on the left, because absolute value graphs are shaped like a "v".)
Since h=-2, just move the function to the left 2 units.
Since k=5, move the function up 5 units.
This basically means the vertex of the function is at the point (-2,5).

So put the point (-2,5) on your graph, then make the v-shape with a slope of 1 on the right side, and -1 on the left.

Sometimes if you aren't sure how the graph will look, just plug x-values into the function to get their corresponding y-values. Then see how the graph looks to check.

5 0

3 years ago

With gasoline prices increasing, drivers are more concerned with their cars’ gasoline consump- tion. For the past 5 years, a dri

polet [3.4K]

Answer:

The calculated chi -square value =5.7356 Is less than12.01 at 0.1level of significance .

The null hypothesis is accepted.

The past 5 years, a driver has tracked the gas mileage of his car and found that the variance from fill-up to fill-up was σ2 = 23 mpg^2.

Step-by-step explanation:

Given data 28 25 29 25 32 36 27 24

Sample size 'n' = 8

mean of the sample (x⁻) = ∑x /n = $\frac{28+ 25+ 29 +25 +32 +36 + 27 + 24}{8}$

mean of the sample (x⁻) = 28.25

x x- x⁻ (x-x⁻ )²

28 28 - 28.25 = -0.25 0.0625

25 25 -28.25 = -3.25 10.56

29 29-28.25 = 0.75 0.5625

25 25-28.25 = -3.25 10.56

32 32-28.25 = 3.75 14.06

36 36-28.25 = 7.75 60.06

27 27-28.25 = -1.25 1.5625

24 24-28.25 = -4.25 18.06

∑(x-x⁻)² = 115.4875

The sample standard deviation

S² = ∑(x-x⁻)²/n-1 = $\frac{115.4875 }{7}$ = 16.49

By using χ² distribution

χ² = $\frac{ns^2 }{variance}$

By above test can be applied only if the population from which sample is drawn normal.

Given data For the past 5 years, a driver has tracked the gas mileage of his car and found that the variance from fill-up to fill-up was σ2 = 23 mpg^2.

Population variance σ² = 23

Null hypothesis :H₀:σ² = 23

Alternative hypothesis :H₁:≠23

$X^{2} = \frac{8 (16.49)}{23}=5.7356$

<u>The calculated chi -square value =5.7356</u>

The degrees of freedom γ=n-1 =8-1=7

The tabulated value of chi -square = 12.01 at 0.1level of significance (check table)

The calculated chi -square value =5.7356 Is less than12.01 at 0.1level of significance .

The null hypothesis is accepted.

<u>Conclusion</u>:-

The null hypothesis is accepted.

The past 5 years, a driver has tracked the gas mileage of his car and found that the variance from fill-up to fill-up was σ2 = 23 mpg^2.

5 0

3 years ago

PLEASE HELP!! WILL MARK BRAINLIEST!

viva [34]

From the graph and orientation of the parametric equations: A. the graph is a circle with a radius of 4. The orientation is counterclockwise as t increases.

<h3>How to find a polar function?</h3>

In geometry, the relationship between the rectangular coordinates (x, y) and polar coordinates (r, t) is given by these polar functions:

x = rcost and y = rsint.

<u>Where:</u>

t is the angle.

r is the radius of a circle.

Mathematically, the standard form of the polar equation of a circle is given by;

x² + y² = r²

<u>Given the following data;</u>

x = 16cost ⇒ x² = 16cos²t

y = 16sint ⇒ y² = 16sin²t

Evaluating, we have:

x² + y² = 16

r² = 16

r = √16

Radius, r = 4.

Also, the orientation is counterclockwise as t increases because the angle gets bigger (increases).

<h3>How to determine polar form of the parametric equations?</h3>

x = 3t .....equation 1.

y = t² .....equation 2.

Making t the subject of formula in eqn. 1, we have:

t = x/3 .....equation 3.

Substituting eqn. 3 into eqn. 2, we have:

y = (x/3)²

rsinθ = (rcosθ/3)²

rsinθ = r²cos²θ/9

9rsinθ = r²cos²θ

9sinθ = rcos²θ

r = 9sinθ/cos²θ

r = 9 × (sinθ/cosθ) × 1/cosθ

r = 9tanθsecθ.

Read more on polar coordinates here: brainly.com/question/2193539

#SPJ1

4 0

2 years ago

Please help answer this

yuradex [85]

I think you can use cosine rule if only the lines that form the <52 are equal.

6 0

3 years ago

the ratio of apples to oranges on the fruit stand was 31:11 if there were 2,940 apples and oranges altogether, how many apples a

Gala2k [10]

First you add 31 and 11 and you get 42, then you do 2,940 divided by 42 which is 70. Then you multiply 70 by 31, and you get 2, 170,
and there are 2,170 apples which is the answer

4 0

3 years ago