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igomit [66]
3 years ago
6

What expressions are equivalent to -3.5(2-3n)-2.5n?

Mathematics
1 answer:
docker41 [41]3 years ago
6 0
<span><span>−<span>3.5<span>(<span>2−<span>3n</span></span>)</span></span></span>−<span>2.5n</span></span>Distribute:<span>=<span><span><span><span><span>(<span>−3.5</span>)</span><span>(2)</span></span>+<span><span>(<span>−3.5</span>)</span><span>(<span>−<span>3n</span></span>)</span></span></span>+</span>−<span>2.5n</span></span></span><span>=<span><span><span><span>−7</span>+<span>10.5n</span></span>+</span>−<span>2.5n</span></span></span>Combine Like Terms:<span>=<span><span><span>−7</span>+<span>10.5n</span></span>+<span>−<span>2.5n</span></span></span></span><span>=<span><span>(<span><span>10.5n</span>+<span>−<span>2.5n</span></span></span>)</span>+<span>(<span>−7</span>)</span></span></span><span>=<span><span>8n</span>+<span>−<span>7</span></span></span></span>
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Can Someone help me plz????
bearhunter [10]

Answer:

4. C

5. 7

6. 3

Step-by-step explanation:

Four:

You have to multiply both of them. Just easy math!

Five:

This one is more complicated. You can see that it is asking you to plug in for a,

F(3):

f(3)= 4(3)-5

f(3)=12-5

f(3)=7

F(1.25):

f(1.25)=4(1.25)-5

f(1.25)=5-5f(1.25)=0

So now just subtract the answers. 7-0 equals 7.

Six:

Just look at the graph and see what number corresponds with y(6), or the 6 on the y axis. It appears to be three.

Have a nice day! Hope this helps. Don't forget to mark brainliest!

4 0
3 years ago
Read 2 more answers
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gregori [183]
F(3)={2(3)-9}
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3 years ago
You want to estimate the probability that a lightbulb of a famous brand will last more than 6.500 hours. You choose 10,000 bulbs
brilliants [131]

Answer/Step-by-step explanation:

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(c) when the true probability is 98%, then it implies that 9800 of 10,000 bulbs did last over 6500hours.

Therefore, the likelihood is p(9800) = mat[10000, 9800]p9800(1 - p)200

(d) Method of moments estimate is the estimation of all the parameters of the population sample.

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Answer:

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Step-by-step explanation:

If the circumference of a circle is C, then C = 2(3.14)r, where r is the radius.

Then C = 6.28r

3 0
3 years ago
Use the table below to find the product of the two polynomials.
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