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aev [14]
3 years ago
14

When a=2 b=3 and c=5 what is the value of a(b+c) solve and show how you got the answer

Mathematics
2 answers:
tino4ka555 [31]3 years ago
5 0

Answer:

16

Step-by-step explanation:

a =2

b = 3

c =5

a(b +c)

2(3+5)

2x3 + 2x5

6 + 10

16

deff fn [24]3 years ago
4 0

Answer:

16

Step-by-step explanation:

If we plug in all the variables, we get 2(3+5)

Evalutation: 2(3+5)=2(8)=16

So the value is 16

Hope this helped!

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The ceiling of Katie’s living room is a square that is 15 ft long on each side. To decorate for a party, she plans to hang crepe
egoroff_w [7]

Answer:

<u><em>6</em></u> rolls because the total perimeter is 102 ft and five rolls is only 100 feet. So she needs <em><u>6</u></em> rolls.

Step-by-step explanation:

to find perimeter, add up all the side lengths.

so 15*4 (it's easier than 15+15+15...)

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now we have to use Pythagorean's Theorum to find corner to corner.

so a^2+b^2=c^2

we have a and b

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do the math...

225+225= 450

square root of 450=

21.213

double that because it's used twice (corner to corner and corner to corner)

42.426

now add it all up

42.426 + 60 = 102.426

we can round

102

20*5 = 100

so she needs 6

MY ORIGINAL ERROR WAS 5, BUT 5 TIMES 20 IS ONLY 80, SO THEREFORE 6 IS REQUIRED SO THERE IS ENOUGH TO COVER 102.

6 0
3 years ago
For the data in the table, write an equation for the direct variation.
melisa1 [442]

The equation of direct variation is,

\begin{gathered} y=kx \\ k=\frac{y}{x} \end{gathered}

Substitute the values of <em>y</em> and <em>x</em>.

\begin{gathered} k=\frac{5.4}{4} \\ k=1.35 \end{gathered}

So, the obtained equation will be <em>y</em>=1.35(x).

Let's check with the values of <em>x</em>.

1) If <em>x</em>=4

\begin{gathered} y=1.35x \\ y=1.35(4) \\ y=5.4 \end{gathered}

2) If <em>x</em>=2

\begin{gathered} y=1.35x \\ y=1.35(2) \\ y=2.7 \end{gathered}

3) If <em>x</em>=-2

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Answer:

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Step-by-step explanation:

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