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3 years ago

Plz help this if you want points

Mathematics

1 answer:

borishaifa [10]3 years ago

8 0

Answer:

First Question:

A) -15+20x B) 36x+28

Second Question:

-10/5, 1/25, 1/2, 3/5, 5/8

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Write whether each number is an expression or an equation 9+b

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Answer:

9 + b is an expression

Step-by-step explanation:

Expressions don't have the = sign in them but equations do.

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2 years ago

A private plane is traveling due east at a rate of 160 mph. A south wind is blowing 30 mph. What is the actual velocity of the p

photoshop1234 [79]

The resultant velocity of the plane is the sum of the two velocity vectors which are perpendicular to each other. See the attached figure.

The magnitude of the resultant velocity is

$\sqrt{160^2+30^2}= \sqrt{26500}=162.79 \;mph$ .

The approximate value of the actual velocity of the plane is $163 \;mph$ . Correct choice is (D).

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4 years ago

Consider the following function. Corey said, “This function is not linear because the graph is only points and not a complete li

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Answer:

A. The function is linear because all of the points lie on a line.

Step-by-step explanation:

That's how math works my friend :) (And it's the reason he was wrong lol)

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3 years ago

N = 32 ÷ (5 - 1) N = 32 ÷ ? N =?

Roman55 [17]

Answer

N = 32 ÷ (5 - 1)

N = 32 ÷ 4

N =8

Step-by-step explanation:

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3 years ago

Read 2 more answers

Plz help, I'm taking an Advanced class (Algebra) Will give brainliest ✔✔✔✔✔✔✔✔✔

bija089 [108]

Part A:

The average rate of change refers to a function's slope. Thus, we are going to need to use the slope formula, which is:

$m = \dfrac{y_2 - y_1}{x_2 - x_1}$

$(x_1, y_1)$ and $(x_2, y_2)$ are points on the function

You can see that we are given the x-values for our interval, but we are not given the y-values, which means that we will need to find them ourselves. Remember that the y-values of functions refers to the outputs of the function, so to find the y-values simply use your given x-value in the function and observe the result:

$h(0) = 3(5)^0 = 3 \cdot 1 = 3$

$h(1) = 3(5)^1 = 3 \cdot 5 = 15$

$h(2) = 3(5)^2 = 3 \cdot 25 = 75$

$h(3) = 3(5)^3 = 3 \cdot 125 = 375$

Now, let's find the slopes for each of the sections of the function:

Section A

$m = \dfrac{15 - 3}{1 - 0} = \boxed{12}$

Section B

$m = \dfrac{375 - 75}{3 - 2} = \boxed{300}$

Part B:

In this case, we can find how many times greater the rate of change in Section B is by dividing the slopes together.

$\dfrac{m_B}{m_A} = \dfrac{300}{12} = 25$

It is 25 times greater. This is because $3(5)^x$ is an exponential growth function, which grows faster and faster as the x-values get higher and higher. This is unlike a linear function which grows or declines at a constant rate.

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4 years ago