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grandymaker [24]
3 years ago
10

21=3v-12 show work pleasee

Mathematics
2 answers:
boyakko [2]3 years ago
8 0

Answer:

i think its 12

Step-by-step explanation:

idk i just have a feeling

fomenos3 years ago
8 0

3v - 12 = 21
3v - 12 + 12 = 21 + 12
3v = 33
divide by 3 each side
V = 11
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The triangles are congruent. Find the length of each hypotenuse.
Zina [86]
If the triangles are congruents:
1) AC must be congruent with FE→AC=FE→y+3=2y+1→
y+3-y-1=2y+1-y-1→
2=y→y=2

2) CB must be congruent with ED→CB=ED→5x+7=6x+2y→
5x+7-5x=6x+2y-5x→7=x+2y→x+2y=7

Replacing y=2 in the equation above:
x+2y=7→x+2(2)=7→x+4=7→x+4-4=7-4→x=3

Then the lenght of each hypotenuse is:
CB=5x+7=5(3)+7=15+7→CB=22
or
ED=6x+2y=6(3)+2(2)=18+4→ED=22

The length of each hypotenuse is 22
6 0
3 years ago
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Afina-wow [57]

Answer:

y for each x value

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3 years ago
If m∠W = 105° and m∠Y = 75°, then m∠X = <br><br> Please show your work, so I know the process.
Paha777 [63]

Answer:

30°

Step-by-step explanation:

First we must know that the sum of the interior angles of a triangle sum up to 180°.  Furthermore, a straight line is also 180°.  By using these what we know we can determine what the value of m∠X is.

First we know that m∠W and m∠Z make up a straight line, since m∠W is 105° it follows that:

180° = m∠W + m∠Z

And so:

m∠Z = 180° - m∠W = 180°-105° = 75°

m∠Z = 75°

Now, we also know that the sum of m∠X + m∠Y + m∠Z = 180° and so:

m∠X = 180° - m∠Y - m∠Z

m∠X = 180° - 75° - 75° = 30°

Therefore, m∠X = 30°


7 0
4 years ago
Read 2 more answers
3 eighths as a decimal?
Ilia_Sergeevich [38]

Answer:

0.375

Step-by-step explanation:

You mean 3/8 right?

3/8=0.375

5 0
3 years ago
Read 2 more answers
Please help me one more time
Vlad1618 [11]

Answer: 24

Yes (x-2) is a factor. There is a remainder.

Step-by-step explanation:

2³-8•2²+14•2-4

8-8•4+14•2-4

0•4+14•2-4

0+14•2-4

14•2-4

28-4

24

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5 0
3 years ago
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