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Umnica [9.8K]
4 years ago
15

What is multiply: -7*4

Mathematics
1 answer:
Luden [163]4 years ago
7 0

Answer:

-28

you welcome ........ :)

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A math club has a total of 41 girls and boys in it. The number of girls is 5 more than 2 times the number of boys.
Vinvika [58]

Answer:

the answer is an orgy

Step-by-step explanation:

there is no way that many girls and boys are in the same room without having an orgy...

3 0
3 years ago
aylor and Natsumi are making block towers out of large and small blocks. They are stacking the blocks on top of each other in a
frozen [14]

Answer:

The height of a large block is of 12.1 inches and of a small block is of 7.7 inches.

Step-by-step explanation:

This question is solved using a system of equations.

I am going to say that:

x i the height of a large block.

y is the height of a small block.

Taylor uses 4 large blocks and 2 small blocks to make a tower 63.8 inches tall.

This means that:

4x + 2y = 63.8

Simplifying by 2:

2x + y = 31.9

So

y = 31.9 - 2x

Natsumi uses 9 large blocks and 4 small blocks to make a tower 139.8 inches tall.

This means that:

9x + 4y = 139.8

Since y = 31.9 - 2x

9x + 4(31.9 - 2x) = 139.8

9x + 127.6 - 8x = 139.8

x = 12.1

y = 31.9 - 2x = 31.9 - 2(12.1) = 7.7

The height of a large block is of 12.1 inches and of a small block is of 7.7 inches.

7 0
3 years ago
ILL MARK YOU AS BRAINLIEST, RATE YOU A 5, AND THANK YOU! 70 POINTS!
nadya68 [22]

Answer:

<h2>290 in²</h2>

Step-by-step explanation:

From the net:

S.A. = 2(25 in²) + 4(60 in²) = 50 in² + 240 in² = 290 in²

From the model:

The formula of a Surface Area of a rectangular prism:

S.A. = 2(lw + lh + wh)

l - length

w - width

h - height

We have l = 5 in, w = 5 in, and h = 12 in. Substitute:

S.A. = 2(5 · 5 + 5 · 12 + 5 · 12) = 2(25 + 60 + 60) = 2(145) = 290 in²

4 0
3 years ago
Read 2 more answers
Find the integral.......
ICE Princess25 [194]

Answer:

1/5(2ln|x|+3*5^1/3)+c

Step-by-step explanation:

4 0
3 years ago
Can somebody help with number 4 asap please
Mars2501 [29]

Answer:

x ≈ 41

Step-by-step explanation:

All the angles in a quadrilateral add together to equal 360°

So set up the equation:

a + b + c + d = 360°

Now fill in the values we know:

x + _ + 4x + 2x - 10 + 85 = 360

7x + 75 = 360

Now subtract both sides by 75:

7x + 75 - 75 = 360 - 75

7x = 285

Divide both sides by 7:

7x / 7 = 285 / 7

x = 40.714

Round:

x = 41

Now to check our answer, substitute 41 for x in the equation:

(41) + _ + 4(41) + 2(41) - 10 + 85

(41) + 164 + 82 - 10 + 85 = 362

The answer is close to 360, so we know it is correct

6 0
3 years ago
Read 2 more answers
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