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Digiron [165]
3 years ago
6

Expand the expression. -7(k - 3) -7k + 21 -k – 21 k+ 21 -7k - 21

Mathematics
1 answer:
garri49 [273]3 years ago
3 0

Answer:

-43K+42

Step-by-step explanation:

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A pre-algebra book is 8 1 half inches by 9 1 fourth inches. Determine the perimeter of the textbook.
Arisa [49]

Answer:

Rectangular book--

two 8 1/2 sides

two 9 1/4 sides

8 1/2*2=17

9 1/4*2=18 1/2

17+18 1/2= 35 1/2

The perimeter of the textbook is 35 1/2 inches or 35.5 inches.

-this is not mine btw creds to sunflowerem :))

8 0
3 years ago
8a to the power of 6 times a to the power of 4 over 4a to the power of -3
svetlana [45]

Answer:

(8a)⁻¹⁸

1 / (8a)¹⁸

Step-by-step explanation:

(((8a)^6a)^4/4a))^-3

((8a)^6a*4/4a)^-3

((8a)^6)^-3

(8a)^6*(-3)

(8a)⁻¹⁸

1 / (8a)¹⁸

4 0
2 years ago
If the initial figure is 10 and then it is dilated with a scale factor of 2 what's the perimeter of dilated figure?
Gelneren [198K]

Answer:

20

Step-by-step explanation:

Initial figure times scale factor = result

10 times 2 = 20

I hope this helps!

8 0
2 years ago
A triangular pyramid has a height of 18 yards and base with an area of 330 square yards. What is the volume of the pyramid?
Zanzabum
18*330
multiply thats your answer

5 0
3 years ago
What is the least even number you can make with the digits 5 2 7 3 6 4 0?
coldgirl [10]
0234576 You just need to put the numbers in order form least to greatest and leave an even number at the end. 
5 0
3 years ago
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