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2 years ago

HI i neeed helppppppppppppppppp

Mathematics

2 answers:

Alik [6]2 years ago

4 0

5, the answer is 5 because 160/4 =40
200/40=5

elena-14-01-66 [18.8K]2 years ago

3 0

Answer:

Step-by-step explanation:

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please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.

likoan [24]

ANSWER:

$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

STEP-BY-STEP EXPLANATION:

We have the following equation:

$f(x)=\sqrt{x}-4$

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

4 0

1 year ago

Multiply 436.2 × 0.74 = ____

Darya [45]

322.788 is the answer to your ?

7 0

3 years ago

Read 2 more answers

B) Complete the frequency polygon

masya89 [10]

Could you explain this better. Maybe in a picture or better format?

7 0

3 years ago

Write in radical form

Studentka2010 [4]

Step-by-step explanation:

I'll do one for you.

Using the formula for turning exponents into radicals

$(b) {}^{ \frac{x}{y} } = \sqrt[y]{b} {}^{x}$

where b is the base

This means that the numerator in the exponet form becomes the power under the radical in radical form and

the denominator in exponet form becomes the nth root in radical form.

For example 5,

$(5) {}^{ \frac{ - 3}{5} }$

That becomes in radical form

$\sqrt[5]{5 {}^{ - 3} }$

or if you want to write it using positive exponents

$\frac{1}{ \sqrt[5]{5 {}^{3} } }$

I'll do one more for you

For example 6,

$11 {}^{ \frac{4}{3} }$

That becomes in radical form

$\sqrt[3]{11 {}^{4} }$

4 0

3 years ago

Math 15

avanturin [10]

Answer:

c. 126.27 square feet

Step-by-step explanation:

Area of rhombus is:

A = pq/2, where p and q are diagonals

We have:

p = 18.3 ft
q = 13.8 ft

The area is:

A = 18.3*13.8/2 = 126.27 ft²

Correct choice is C

4 0

2 years ago