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Anon25 [30]
3 years ago
10

Zoe, Latoya, Christina, and Rhoda each used a different method to verify that

Mathematics
2 answers:
Gala2k [10]3 years ago
8 0

Answer:

D) Rhoda's Method

Step-by-step explanation:

-2(3x - 12)

Using the distributive property a(b - c) = ab - ac

-2(3x -12) = -2(3x) -2(-12)

= -6x + 24

Which means-2(3x - 12) and -6x + 24 are equal.

To check this, we have to substitute the same x value for both the expression and evaluate them.

Both expression will have the same value.

Therefore, Rhoda is correct.

Thank you.

poizon [28]3 years ago
6 0
Rhoda : sub same values of x into both expressions. The expressions are equivalent if the values of the expressions are equal.
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Sonya drops a marble while standing on a deck 7 7/8 feet above the ground. The marble falls 4 1/4 feta from Sonya's hand to the
Greeley [361]

Answer:

12\dfrac{1}{8}\ feet

Step-by-step explanation:

Sonya drops a marble while standing on a deck 7 \dfrac{7}{8} feet above the ground.

The marble falls 4 \dfrac{1}{4} feet from Sonya's hand to the deck, and then rolls and falls to the ground.

So, the ball falls 4 \dfrac{1}{4} feet from Sonya's hand to the deck  and 7 \dfrac{7}{8} from the deck to the ground, in total

4\dfrac{1}{4}+7\dfrac{7}{8}=4\dfrac{2}{8}+7\dfrac{7}{8}=(4+7)+\dfrac{2+7}{8}=11+\dfrac{9}{8}=11+1\dfrac{1}{8}=12\dfrac{1}{8}\ feet

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3 years ago
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What is 5/8 expressed as a decimal?​
Lelu [443]

Answer:

The answer would be 0.625

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3 years ago
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EXPERT HELP: EXPLAIN THE ANSWER AND DON'T GUESS<br><br> Tell me the mean of each brand
rosijanka [135]

Answer:

D

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IF you count the dots for each graph, you would see that the minimum for B is Higher than group A's maximum, Therefore, the numbers do not overlap. This means that at a simple glance you can see which company does better.

6 0
3 years ago
A cylindrically shaped space station is rotating about the axis of the cylinder to create artificial gravity. The radius of the
erica [24]

Answer:

8%

Step-by-step explanation:

The maximum change happens when all 500 people moves form outer surface to the station center. When all of them are at the surface, the total moment of inertia is:

I = I_s + 500I_p = 3*10^9 + 500m_pr_p^2=3*10^9 + 500*70*82.5^2=3.24*10^9

When they are at the axis, the total moment of inertia is only the station's, which is 3*10^9

By the law of angular momentum conservation:

I_1\omega_1 = I_2\omega_2

\omega_2/\omega_1 = I_1/I_2 = \frac{3.24*10^9}{3*10^9} = 1.08

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3 years ago
Find the interest rate if £6400 has a final value of £8334 in 3 years. Give your answer to 1 d.p​
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Answer:

Step-by-step explanation:

6400(1+i)³=8334

(1+i)³=1.3021875

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i= .092

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2 years ago
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