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inysia [295]
3 years ago
14

Subtract -2k^3 + k^2 - 9 from 5k^3 - 3k + 7.

Mathematics
2 answers:
Lady_Fox [76]3 years ago
3 0
5k^3 - 3k + 7 + <span>2k^3 - k^2 + 9 
= 7k^3 - k^2 -3k + 16</span>
Alex17521 [72]3 years ago
3 0
7k^3-k^2-3k+16 hope it helps
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A parallelogram has an area of 300 square kilometers and a height of 20 kilometers. What is the length of the base?
Neko [114]

Answer: the length of the base is 15 kilometers.

Step-by-step explanation:

formula : Area of parrallelogram  = Length of base x height

Given: Area of parallelogram = 300 square kilometers

height = 20 kilometers

Substituting values in the formula , we get

300 = Length of base x 20

Length of base  = \frac{300}{20}

= 15 kilometers

Hence, the length of the base is 15 kilometers.

4 0
2 years ago
Need help please anyone
Dafna11 [192]

Answer:

70°

Step-by-step explanation:

The minor angle of AB forms a straight line with angle x. When summed up it equals 180°.

minor angle of AB + x° = 180°

110° + x° = 180°

x° = 180° - 110°

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5 0
3 years ago
A cookie recipe that yields 24 cookies requires 1 3/4 cups of butter. When the ingredients in this recipe are increased proporti
erik [133]

Answer:

5 1/4

Step-by-step explanation:

* is multiplication

1 3/4 is 1.75

so

24/1.75 = 72/×

1.75 * 72 = 24 * x

126 = 24x

24x = 126

x = 5.25 or 5 1/4

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3 years ago
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Answer:

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