3 years ago

Expand and simplify (4x +3)(2x - 5

Mathematics

2 answers:

Scrat [10]3 years ago

8 0

Answer:

Equation simplifed= 8x^2-14x-15

Step-by-step explanation:

koban [17]3 years ago

4 0

Answer:

=8x^2-14x-15

Step by-step explanation:

First you Expand=4x times 2xx-4 times 5x+3 times 2x+3(-5)

then you simplify to get. 8x^2-14x-15

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What is 4.3(v+2.5)=8.11+4v

True [87]

Answer:

-8.8

Step-by-step explanation:

We begin by simplifying the parenthesis through multiplication. Parenthesis is a structure which signals multiplication happening.

$4.3(v+2.5)=8.11+4v\\4.3v+10.75=8.11+4v$

We now begin combining like terms across the equal sign by performing the inverse or doing the opposite. Move first the 8.11 by subtracting it from both sides.

$4.3v+10.75-8.11=8.11-8.11+4v\\4.3v+2.64=4v$

Now, move 4.3v across by subtracting it from both sides.

$4.3v-4.3v+2.64=4v-4.3v$

$2.64=-0.3v$

Finally, we divide both sides by the coefficient of v.

$\frac{2.64}{-0.3} =\frac{-0.3v}{-0.3} \\-8.8=v$

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3 years ago

Earl runs 35 meters in 10 seconds. How many meters does Earl run per second?

liraira [26]

If he ran 35 meters in 10 seconds, how many meters did he run in a second?
35m=10s
? =1
1/10*35m=3.5m
Therefore he ran 3.5 meters in a second.

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3 years ago

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Can someone please help me with this question :)

Ugo [173]

Answer:

Step-by-step explanation:

Sin80° = opp/hyp

Sin80° = 21/y

ysin80° = 21

y = 21/sin80°

y = 21.3

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3 years ago

Eric has a spinner that is divided into different colors colored sections that are the same size and shape on any spin the theor

jeka57 [31]

The answer is 1125(D)

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Scotty earns $48 for babysitting for 6 hours.

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Answer:

I think 1 hour and 6 mins.

Step-by-step explanation:

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