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Lunna [17]
3 years ago
6

F(x) = -4x2 + 19 Find f(-7)

Mathematics
1 answer:
faust18 [17]3 years ago
7 0

Step-by-step explanation:

Solution,

f(x) = -4x2 + 19

f(x)=-8+19

f(x)=27

As it is a constant function, therefore

f(-7)=27

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3 years ago
How to calculate area when you are given volume of 182m3 and height of 2.8m<br>​
Elza [17]

Hey there!

We simply have to do 182/2.8, and you will get the area (65m^2).

We know that the formula for area is <u>length x width</u>, and the formula for volume is<u> length x width</u> x height. In the volume formula, we can see it can also be <u>area x height</u> to get <u>volume</u>. So, we know that<em><u> area x height = volume</u></em>, right? And in this equation, we are given volume and height. If          <u>V = ha</u>, with V = volume; h = height; a = area, we can divide "h" on both sides, and we get V/h = a, or volume divided by height is area. To solve for the above equation, we can plug the numbers in the formula: 182/2.8 = a, or 65 = a.

Hope this helps! Have an amazing day, and remember, you've got this!

4 0
3 years ago
Please helpppP! Please simplify the fractions.
UkoKoshka [18]

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Step-by-step explanation:

4 0
4 years ago
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What are 4 ways you can write 3 times x?
alina1380 [7]
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5 0
4 years ago
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Convert the angle \theta=\dfrac{8\pi}{9}θ=
Olegator [25]

Answer:

160°

Step-by-step explanation:

-Given the angle in radians as \theta=\dfrac{8\pi}{9}\ rad

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#We therefore equate and cross multiply:

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Hence, angle θ is 160°

8 0
3 years ago
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