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nataly862011 [7]

3 years ago

6

Someone help me with these math questions

2 answers:

Maslowich3 years ago

8 0

48 mph
Hope this helps :)

mart [117]3 years ago

3 0

Well for the first one the ratio would be 12:6 I believe

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A car dealer just took delivery on forty new cars. He plans to put four of these cars on display at the front of the lot. In how

vagabundo [1.1K]

Answer:

B

Step-by-step explanation:

8 0

3 years ago

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Rashid is paid by the hour. He earned $50 for a 4-hour workday. How much does he earn for a 5 1/2- hours work day

Tom [10]

<span>Use a proportion:
x/(5 1/2) = 50/4
--------
x = (11/2)(50/4)

--------
x = 550/8
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x = $68.75</span>

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3 years ago

Sin 420° =<br><br> Your answer:<br> A.sin 30°<br> B.sin 60°<br> C.sin 90°<br> D.sin 20°

alex41 [277]

Answer: B

Step-by-step explanation:

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3 0

3 years ago

Use complete sentences to describe why for any set B, that the empty set would be a subset of it.

ella [17]

Because empty set has no element which automatically make it a subset of every set.

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

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3 years ago

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For f(x)=2x+1 and g(x)=x^2-7, find (f+g)(x)

labwork [276]

For this case we have the following functions:

$f (x) = 2x + 1\\g (x) = x ^ 2-7$

We must find the following sum of functions:

(f + g) (x)

By definition we have to:

$(f + g) (x) = f (x) + g (x)\\(f + g) (x) = 2x + 1 + x ^ 2-7\\(f + g) (x) = x ^ 2 + 2x-6$

So, we have to:

$(f + g) (x) = x ^ 2 + 2x-6$

Answer:

$(f + g) (x) = x ^ 2 + 2x-6$

3 0

3 years ago