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3 years ago

How do you do this .

Mathematics

1 answer:

mars1129 [50]3 years ago

6 0

The slope of the line on the graph represents Pete's speed. That slope is 8 miles/hour.

Paul walks 2 miles in 0.4 hours, so walks at (2/0.4) miles/hour = 5 miles/hour.

a) Pete is moving at a greater rate.

b) At 8 miles per hour, it takes Pete (2 mi)/(8 mi/h) = 1/4 h = 15 minutes to get to school. If Pete leaves 5 minutes later than Paul, he will reach school 20 minutes after Paul starts, while Paul is still 4 minutes away from the school.

Yes, Pete will catch Paul before they get to school.

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What is the answer don't get it

denis-greek [22]

Demoss graphing calculator

5 0

3 years ago

jemboy wants to make his 8 meter square pool into a rectangular one by increasing its length by 2m and decreasing its width by 2

mel-nik [20]

Side = 8m
He increases length by 2m and reduces width by 2m
(a.) New dimensions will be -
Length = 10m and Width = 6m
(b.) Area = length x breadth (or width)
here we will use the special product (x+y) (x-y)
length = (x+y) and width = (x-y)
area = (8+2) x (8-2)
8^(2) - 2^(2)
= 60

3 0

3 years ago

Read 2 more answers

y = β0 + β1x1 + β2 x12+ ε is known as a Group of answer choices simple first-order model with two predictor variables. simple f

Alborosie

Answer:

(A)Simple First Order Model with Two Predictor Variables.

Step-by-step explanation:

A multiple linear regression model with k predictor variables X₁, X₂, ..., Xₖ and a response Y, can be written as:

y = βₒ + β₁x₁ + β₂x₂ + ··· βₖxₖ + ∈.

Where:

x₁ , x₂,...xₖ are the predictor variables.

βₒ ,β₁, β₂ ··· βₖ are the Regression Coefficients.

and ∈ are the residual terms of the model

Multiple regression models describe how a single response variable y depends linearly on a number of predictor variables x.

The model:

y = βₒ + β₁x₁ + β₂x₂ + ∈ has two predictor variables. It is also of first order since there is no quadratic term, therefore it is a Simple First Order Model with Two Predictor Variables.

3 0

3 years ago

Write a syarem of linear equations that defines the verbal problem, and then answer the question.

tresset_1 [31]

Answer:

40,000 ft

Step-by-step explanation:

The area of a rectangle is weight*length, and the perimeter is the sum og the four sides, which are 2 lengths sides ans 2 width sides, so:

area = w*l

perimeter = 2w + 2l

If the perimeter is 1000 ft:

2w + 2l = 1000

Also, the length is 300 ft more than width, so:

l = 300 +w

So, our system is:

2w + 2l = 1000 (equation 1)

l =300 + w (equation 2)

Son, we can solve it by replacing equation 2 in equation 1:

2w + 2(300 +w) = 2w + 600 + 2w = 4w + 600 = 1000

Now, subtract 600 in both sides:

4w + 600 - 600 = 1000 - 600

4w = 400

Divide both sides by 4:

4w/4 = 400/4

w = 100

Lets replace this w value in equation 2 to find l:

l = 300 + 100 = 400, so l=400

Finally we can find the area using the area formula:

area = 400*100 = 40,000 ft2

So, the area is 40,000 ft2

7 0

3 years ago

Which of the following is a like radical to RootIndex 3 StartRoot 6 x squared EndRoot? x (RootIndex 3 StartRoot 6 x EndRoot) 6 (

aliya0001 [1]

Answer:

4 (RootIndex 3 StartRoot 6 x squared EndRoot) = 4 $\sqrt[3]{6x^2}$

Step-by-step explanation:

<em>Added radical forms to the question for better visibility.</em>

Which of the following is a like radical to RootIndex 3 StartRoot 6 x squared EndRoot = $\sqrt[3]{6x^2}$ ?

x (RootIndex 3 StartRoot 6 x EndRoot) = x $\sqrt[3]{6x}$
6 (RootIndex 3 StartRoot x squared EndRoot) = 6 $\sqrt[3]{x^2}$
4 (RootIndex 3 StartRoot 6 x squared EndRoot) = 4 $\sqrt[3]{6x^2}$
x (RootIndex 3 StartRoot 6 EndRoot) = x $\sqrt[3]{6}$

<h3>Solution</h3>

<em>Like radicals are radicals that have the same root number and expression under the root.</em>

1) x $\sqrt[3]{6x}$ = $\sqrt[3]{6x^4}$

No, incorrect

2) 6 $\sqrt[3]{x^2}$ = $\sqrt[3]{6^3x}$

No, incorrect

3) 4 $\sqrt[3]{6x^2}$

Yes, correct

4) x $\sqrt[3]{6}$ = $\sqrt[3]{6x^3}$

No, incorrect

Compared with the given radical, we can see from the given choices only 3rd choice is like radical with $\sqrt[3]{6x^2}$

3 0

3 years ago