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Reika [66]
3 years ago
7

Given the function rule f(x) = x² – 3x + 2, what is the output of f(–2)?

Mathematics
1 answer:
Paul [167]3 years ago
3 0

Answer:

D

Step-by-step explanation:

1) Plug in -2 for x

(-2)^2-3(-2)+2

2) Simplify

4+6+2

12

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A cargo truck travels at 75 mi/h. There are two drivers that keep the
ra1l [238]

Answer:

750

Step-by-step explanation:

What is the empirical formula of a carbon- oxygen compound, given that a 95.2 g sample of the compound contains 40.8 g of carbon and the rest oxygen.

4 0
3 years ago
If x = 9 cm and z = 15 cm, what is the length of y?
SSSSS [86.1K]
Given that the problem does not specify if y is <span>opposite, adjacent or hypotenuse side, I will provide two solutions to this problem.

Case 1. Y is the hypotenuse side. (See figure 1)

According to the Pythagorean Theorem, for a right triangle, it is true that:

</span>c^{2}=a^{2}+b^{2}
<span>
being c the hypotenuse side and a and b the opposite and adjacent side respectively. So, for the figure 1 it is true that:
</span><span>
z = a = 15cm
x = b = 9cm
y = c = ?

</span>y^{2}=9^{2}+15^{2}=306
∴ y=\sqrt{306}=17.492cm

Case 2. Y is the opposite side (The same happens as if it were the adjacent side). (See figure 2)

From the equation:

c^{2}=a^{2}+b^{2}

For the figure:

y = a = ?
x = b = 9cm
z = c = 15cm

We need to isolate a, so:

a^{2}=c^{2}-b^{2}

a^{2}=15^{2}-9^{2}=144

∴ y=a=\sqrt{144}=12cm

4 0
3 years ago
Can someone help and tell me how you got the answer
neonofarm [45]

Answer:

x = 15

Step-by-step explanation:

x/3 + 10 =15

Subtract 10 from each side

x/3+10-10 =15-10

x/3 = 5

Multiply each side by 3

x/3*3 = 5*3

x=15

8 0
3 years ago
John is 9 times as heavy as his dog.
jasenka [17]

Answer:

John weighs 900% more than his dog

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
A can of soup has a diameter of 7 cm and a height of 10 cm. Assuming
Vinil7 [7]

Answer: The answer is 219.8cm^3 or in your case 220cm^3

Step-by-step explanation:

volume= height x pi x diameter

volume = 10cm x 3.14 x 7cm

volume =219.8cm^3

7 0
3 years ago
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