3 years ago

Can u help me with this question

Mathematics

1 answer:

marta [7]3 years ago

4 0

I can't see the full problem

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Solve for x: 3(x + 1) = −2(x − 1) + 6.

kow [346]

Answer:

x=1

Step-by-step explanation:

3(x+1)=-2(x-1)+6

3x+3=-2x+2+6

3x+2x=2+6-3

5x=8-3

5x=5

x= $\frac{5}{5}$

x=1

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2 years ago

For the following system, if you isolated x in the first equation to use the Substitution Method, what expression would you subs

Arlecino [84]

First, we write the first equation where the left side contains x and y in the right side. We do as follows:

x = 2y + 6

You, then substitute the equation to the second one.

3(2y + 6) + y = 8
6y + 18 + y = 8
7y = -10
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2 years ago

Fiona draws a circle with a diameter of 14 meters. What is the area of Fiona’s circle? 7Pi meters squared 14Pi meters squared 28

vitfil [10]

Answer:

49Pi meters squared

Step-by-step explanation:

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2 years ago

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For what value x makes the equation below true?

kenny6666 [7]

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Step-by-step explanation:

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[Read attachment]

attashe74 [19]

Answer:

r=2.9cm

Step-by-step explanation:

we know the formula, mass= density*volume

as a result we can figure out the volume = mass/density

=485/8 cm^3

=60.625cm^3

here comes another formula of volume of cone = $\frac{1}{3}$ $\pi$ $r^{2}$ $h^{}$

we will use this to find the radius,

$\frac{1}{3}$ $\pi$ $r^{2}$ $h^{}$ =60.625

$\pi$ $r^{2}$ $h^{}$ =181.875

h is 70mm which we will turn to 7cm

$\pi$ $r^{2}$ *7=181.875

$r^{2}$ =8.27

r=2.875825cm

r=2.9cm

nice question. hope this helps

6 0

2 years ago