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Licemer1 [7]
3 years ago
10

(7k-4)(7k^2+4k-1) mulityply the polynomials

Mathematics
1 answer:
stich3 [128]3 years ago
6 0

Answer:

  49k^3 -23k -4

Step-by-step explanation:

The distributive property is your friend.

  (7k-4)(7k^2+4k-1)=7k(7k^2+4k-1)-4(7k^2+4k-1)\\\\=49k^3+28k^2-7k-28k^2-16k+4\\\\=49k^3+k^2(28-28)+k(-7-16)-4\\\\=\boxed{49k^3-23k-4}

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Help me with this please I will give you Brainliest
oksian1 [2.3K]
Answer

h = 8.12 cm

Explanation

Area of a parallelogram = b • h

We know the area is 20.3 cm^2 and that the base is 2.5cm.

Therefore 20.3 cm^2 = 2.5h

20.3/2.5 = 8.12 cm

h = 8.12 cm
3 0
3 years ago
Suzanne is 64 inches tall. What is Suzannes height in feet and inches
Elodia [21]


There's 12 inches in 1 foot.

64 ÷ 12 = 5 with a remainder of 4

Suzanne is 5 foot 4 inches.

Hope this helps.

5 0
3 years ago
Read 2 more answers
Deshawn invests $5,000 in a savings account that earns 6% annual interest, compounded continuously. How long will it take to dou
koban [17]

Answer:

Step-by-step explanation:

Investment = $5,000

Annual Interest = 5%

5000/100 x 5/1

50×5 = 250

First year interest = $250

Therefore, 250 x 20

= $5,000

It will take him 40 years.

6 0
4 years ago
Which is equivalent?
Arlecino [84]

Steps to simplify:

(2x + 3)(x - 7)

~Use FOIL to multiply

(2x * x) + (2 * -7) + (3 * x) + (3 * -7)

~Simplify

=2x² - 14x + 3x - 21

~Combine Like Terms

2x² + (-14x + 3x) - 21

~Simplify

2x² - 11x - 21 (Option 2)

Best of Luck!

6 0
3 years ago
Please zoom in before you start solving because there are tricks in here. What is the answer?
blondinia [14]
45 ÷ 3 = 15
21 ÷ 3 = 7
12 ÷ 3 = 4

(4 + 15) x 7 = 133

OR if you’re using bedmas/pedmas

4 + (15 x 7) = 109
7 0
3 years ago
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