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2 years ago

The graph shows the distance a hiker is from their car and represents a linear

Mathematics

1 answer:

Amanda [17]2 years ago

5 0

The distance of the hiker of a linear function.

The true statement is (d) The y-intercept is (0, 2), and the 2 represents the number of miles from the car at the start of this time period.

From the graph, we can see that the graph crosses the y-axis at: (0,2)

This means that, the y-intercept is (0,2), and 2 represents the number of miles, he started with.

Hence, the correct statement is (d)

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Factor the expression 84+28

harkovskaia [24]

Answer:

112

Step-by-step explanation:

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2 years ago

Use the quadratic model P(x)=25^2-24x+615 if x equals 8

Lynna [10]

P(x) = 25^2 -24x + 615
P(8) = 25(8 squared) -24(8) +615 = 2023

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3 years ago

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If you were solving a system of equations and you came to a statement like 4 = 4, what do you know about the solution to the sys

GuDViN [60]

It is infinite solutions.

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3 years ago

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Identify the perimeter and area of a square with diagonal length 11in. Give your answer in simplest radical form. HELP PLEASE!!

Nataliya [291]

Answer:

Perimeter = 22*sqrt(2)
Area = 60.5 inches
D

Step-by-step explanation:

Remark

You need 2 facts.

A square has 4 equal sides.
It contains (by definition) 1 right angle but since we are not including and statement about parallel sides, it needs 4 right angles.

That means you can use the Pythagorean Theorem.

If one side of a square is a then the 1 after it is a as well.

Formula

a^2 + a^2 = c^2
2a^2 = c^2

Givens

c = 11

Solution

2a^2 = 11^2
2a^2 = 121 Divide by 2
a^2 = 121/2 Take the square root of both sides
sqrt(a^2) = sqr(121/2)
a = 11/sqrt(2) Rationalize the denominator
a = 11 * sqrt(2)/[sqrt(2) * sqrt(2)]
a = 11 * sqrt(2) / 2

Perimeter

P = 4s

P = 4*11*sqrt(2)/2
P = 44*sqrt(2)/2
P = 22*sqrt(2)

You don't need the area. The answer is D

Area

Area = s^2
Area = (11*sqrt(2)/2 ) ^2
Area = 121 * 2 / 4
Area = 60.5

8 0

3 years ago

A van and a truck both drove from Town A to Town B. The distance

Gala2k [10]

First we need to find out the time it took for the truck to reach town B.

$Speed= \frac{Distance}{Time}$

$40= \frac{200}{T}$
$T=5hours$

Now, because the van left 1.5 hours earlier and reached the destination 2.5 hours before, it took 1 hour less the the truck to arrive.

$5hours-1hour=4hours$ which is the time it took for the van to arrive.

Now we use the speed equation again to work out speed.

$Speed= \frac{200}{4}$

$Speed=50mph$ = speed of van

Hope this helped :)

4 0

3 years ago