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4 years ago

Help me out ? Thank you !!

Mathematics

1 answer:

Zepler [3.9K]4 years ago

6 0

Because the dilation is at the origin (0,0) multiply the coordinates by the scale factor.

L is at (-2,5) now.

The new location would be (-2 * 4 , 5 *4) = (-8,20)

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Help please will be marked as brainliest if correct

gregori [183]

Answer:

12.95

Step-by-step explanation:

1. 173.43

2. 325.54

3. 0.6794

4. 76.45

Unlock number: 12.95

8 0

3 years ago

Read 2 more answers

Select the correct answer.

Dafna11 [192]

Answer:

D. -7

Step-by-step explanation:

Sum of three times the square of a number and -7.

<u>If we call the number x, then the expression is:</u>

3x² - 7

Here - 7 is constant, x is variable, 3 is coefficient

<u>Correct answer choice is:</u> D. -7

5 0

3 years ago

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

Evaluate the expression StartFraction 12 minus 3 y Over 2 EndFraction plus y StartFraction 2 y minus 4 Over y EndFraction for y

vladimir1956 [14]

Answer: $\frac{31}{6}$

Step-by-step explanation:

Given

$\Rightarrow \frac{12-3y}{2}+y\frac{2y-4}{y}$

$\Rightarrow \frac{12-3y}{2}+\frac{y^2+2y-4}{y}$

Now for $y=3$

$\Rightarrow \frac{12-3\times 3}{2}+\frac{3^2+2\times 3-4}{3}$

$\Rightarrow \frac{3}{2}+\frac{9+6-4}{3}$

$\Rightarrow \frac{3}{2}+\frac{11}{3}$

$\Rightarrow \frac{9+22}{6}=\frac{31}{6}$

3 0

3 years ago

Read 2 more answers

Are 2(6.1x+25.3y+2.1x-3.9y) and 4(4.1x+ 10.7) equivalent

Vlada [557]

Answer:

Multiply the number outside the parentheses by each term inside the parentheses

=2(6.1x+25.3y+2.1x-3.9y)

=(2*6.1x)+(2*25.3y)+(2*2.1x)+(2*-3.9y)

=12.2x + 50.6y + 4.2x - 7.8y

combine like terms

= 16.4x + 42.8y

=4(4.1x+ 10.7)

=(4*4.1x) + (4*10.7y)

=16.4x + 42.8y

Yes, the two expressions are equivalent.

Step-by-step explanation:

5 0

3 years ago