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3 years ago

Evaluate the function: f(x)=x2−4x, find f(−3)

Mathematics

1 answer:

VikaD [51]3 years ago

3 0

Answer:

f(-3) = 21

Step-by-step explanation:

To solve this, you can replace all x's with -3 and then solve to find the answer.

f(x) = x^2 - 4x

f(-3) = -3^2 - 4(-3)

f(-3) = 9 - (-12)

f(-3) = 21

I hope this helps!

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Which expression is equivalent to...? Assume... screenshots attached, please help!

larisa [96]

Answer:

$\frac{\sqrt[3]{5} }{3x}$

Step-by-step explanation:

Ok, let's do this step by step....

$\sqrt[3]{\frac{10x^{5} }{54x^{8} } }$

Let's first simplify the x's:

$\sqrt[3]{\frac{10}{54x^{3} } }$

Then we breakdown the 54 as 2 * 27 then simplify with the 10 above.

$\sqrt[3]{\frac{10}{2 * 27x^{3} } } = \sqrt[3]{\frac{5}{27x^{3} } }$

Now, we can rewrite this as the following and solve the bottom part:

$\frac{\sqrt[3]{5} }{\sqrt[3]{27x^{3} } } = \frac{\sqrt[3]{5} }{3 \sqrt[3]{x^{3} } } = \frac{\sqrt[3]{5} }{3x}$

The solution is

$\frac{\sqrt[3]{5} }{3x}$

8 0

4 years ago

What percentage is 11 of 88

Vera_Pavlovna [14]

Answer:

The answer is: 12.5%

Step-by-step explanation:

Divide 11 by 88. Multiply the result by 100 to get percent.

11/88 = 0.125

0.125 x 100 = 12.5%

Hope this Helps!! Have an Awesome Day!! (-:

6 0

3 years ago

What is 29x56 if u scam me out of points mad ω

monitta

It would be equal to 1624

7 0

3 years ago

Read 2 more answers

In how many ways can the first 4 guests arrive at a party if 15 guests have been invited.

notsponge [240]

Answer:

The first 4 guests can arrive in 32,760 ways.

Step-by-step explanation:

The order in which the guests arrive is important. For example, A,B,C,D is a different outcome to B,A,C,D. So we use the permutations formula to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

$P_{(n,x)} = \frac{n!}{(n-x)!}$

In this question:

4 guests from a set of 15. So

$P_{(15,4)} = \frac{15!}{(15-4)!} = 32760$

The first 4 guests can arrive in 32,760 ways.

6 0

4 years ago

Read 2 more answers

Suppose Q was the midpoint of PR. Use the information to find its missing value

madam [21]

Answer :-

13) x = 6

14) PQ = 31

15 ) PR = 38

16 ) x = 13

Step-by-step explanation:

[ Refer to the attached file ]

5 0

3 years ago