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Finger [1]
3 years ago
11

Question 7 of 10

Mathematics
1 answer:
xeze [42]3 years ago
5 0

Answer:40

Step-by-step explanation:

there are 6 triangles / 2= 3,add that tothe squares(37) = 40

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Someone plz help 50 points and brainliest if correct!!!
givi [52]

Answer:

<u>Ratio of one dimension:</u>

  • k = R/r = 12/3 = 4

<u>Ratio of the volumes:</u>

  • k³ = 4³ = 64

<u>Smaller volume given:</u>

  • 97 cm³

<u>Larger volume: </u>

  • 97*64 = 6208 cm³
4 0
3 years ago
Read 2 more answers
X2+4x+3 can someone explain ?
Katyanochek1 [597]

Answer:

Factor: (x+1) (x+3)

Step-by-step explanation:

8 0
3 years ago
Solve the following system of equations by the substitution method.
ruslelena [56]
5x = y + 6 (I)
2x - 3y = 4 (II)
-------------------
We have:
5x = y + 6 → x =  \frac{y+6}{5}

Soon:
2x - 3y = 4 → 2* (\frac{y+6}{5}) - 3y = 4\to \frac{2y+12}{5} - 3y = 4
<span>least common multiple (5)
</span>\frac{2y+12}{5} - 3y = 4\to \frac{2y+12}{\diagup\!\!\!\!\!5} - \frac{15y}{\diagup\!\!\!\!\!5} = \frac{20}{\diagup\!\!\!\!\!5}
2y + 12 - 15y = 20
- 15y + 2y = 20 - 12
- 13y = 8
\boxed{\boxed{y = - \frac{8}{13} }}\end{array}}\qquad\quad\checkmark


4 0
3 years ago
Write an equation that passes through -2 and 5 and perpendicular to x=7? y=mx+b
GarryVolchara [31]

Answer:

Step-by-step explanation:

I'm going to assume you mean passes through the point (-2,5) since -2 and 5 could mean a lot of different things

To find the perpendicular line's gradient, you would know that m1*m2 = -1

In this case m1 = 7, so m2 must be -1/7

Now we substitute the gradient into the equation

y = -1/7x + b

To find b, we substitute (-2,5) into the equation above

5 = -1/7*-2+b

5 = 2/7 + b

b = 33/7

Therefore the equation of the line is

y = -1/7x+33/7

4 0
3 years ago
Solve and express the solution set in simplest form. 6x-1/5=3/1
ruslelena [56]
Follow the steps below:

5 0
3 years ago
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