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3 years ago

7

This is probably so easy but im dumb lol plz help.

2 answers:

Luba_88 [7]3 years ago

6 0

Answer:

(5x)^2=5x^2

Step-by-step explanation:

you just remove the parenthsis.

Airida [17]3 years ago

5 0

Don’t say you’re dumb ! we always need help sometimes.

(5x)^2 = ____x^2

distribute the exponent ‘2’ to both terms inside the parentheses.

so it will be (5)^2(x^2)

simplify. 5^2=25, (x^2)=x^2

so the answer is 25x^2

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Show your work everywhere you can!<br><br> solve for x. <br><br> c.x/5-12=48

Keith_Richards [23]

Remember you can do anything to an equation as long as you do it to both sides

x/5-12=48
add 12 to both sides
x/5+12-12=48+12
x/5+0=60
x/5=60
multiply bot sides by 5/1
5x/5=60 times 5
x times 5/5=300
x times 1=300
x=300

8 0

3 years ago

Read 2 more answers

If sin theta = 2/3 and tan theta <0 what is the value of cos theta?

Mrac [35]

Answer:

d) $\cos(\theta)=-\frac{\sqrt{5}}{3}$

Step-by-step explanation:

If $\sin(\theta)=\frac{2}{3}$ and $\tan(\theta)\:$ , then

$\theta$ is in quadrant 2.

Recall that;

$\sin^2(\theta)+\cos^2(\theta)=1$

We substitute the given sine ratio to obtain;

$(\frac{2}{3})^2+\cos^2(\theta)=1$

$\frac{4}{9}+\cos^2(\theta)=1$

$\cos^2(\theta)=1-\frac{4}{9}$

$\cos^2(\theta)=\frac{5}{9}$

$\cos(\theta)=\pm \sqrt{\frac{5}{9}}$

$\cos(\theta)=\pm \frac{\sqrt{5}}{3}$

We are in the second quadrant, therefore

$\cos(\theta)=-\frac{\sqrt{5}}{3}$

8 0

4 years ago

Please help!!! Will mark as Brainliest!!!

12345 [234]

The answer would be b because a negative plus a positive is always a negative

6 0

3 years ago

Read 2 more answers

A point with a positive x-coordinate and a negative y-coordinate is reflected over the y-axis.

goblinko [34]

We need a photo or something

3 0

3 years ago

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PLEASE HELP !! ILL GIVE BRAINLIEST !! 100 POINTS

zheka24 [161]

Answer:

124

Step-by-step explanation:

Elm St. and Oak St. are parallel lines.

Cedar St. is a transversal to the other two streets.

When parallel lines are cut by a transversal, corresponding angles are congruent.

The angles with measures 9x + 61 and 3x + 103 are corresponding angles, so they are congruent and have the same measure.

9x + 61 = 3x + 103

Subtract 3x from both sides.

6x + 61 = 103

Subtract 61 from both sides.

6x = 42

Divide both sides by 6.

x = 7

9x + 61 = 9(7) + 61 = 63 + 61 = 124

3x + 103 = 3(7) + 103 = 21 + 103 = 124

3 0

3 years ago