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zepelin [54]
3 years ago
14

Help! (math and area.) i'll give you brainliest!

Mathematics
1 answer:
Viefleur [7K]3 years ago
5 0
Q.12

30-18=12
Answer =12
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3x3 – 19x2 + kx – 30<br> What is the value of k?
Citrus2011 [14]

Answer:

Let's simplify step-by-step.

(3)(3)−(19)(2)+kx−30

=9+−38+kx+−30

Combine Like Terms:

=9+−38+kx+−30

=(kx)+(9+−38+−30)

=kx+−59

Answer:

=kx−59

6 0
2 years ago
Someone plz help me giving brainliest
sukhopar [10]

Answer:

1/14

Step-by-step explanation:

1 - 5/7 = 7/7 - 5/7 = (7-5)/7

Subtract. 7 - 5 = 2

= 2/7

Now we have to multiply 2/7 and 1/4

We get 2/7 x 1/4 = <em>1/14</em>

7 0
3 years ago
a pice of wire 80 inches long is cut into 2 pieces. One piece is 5 inches more than twice the other. How long is the shortest pi
ad-work [718]

The longer piece of wire is 42.5

The shorter piece of wire is 37.5

37.5+42.5=80

37.5 matches the requirements because it is 5 smaller than 42.5 :)

Mark as BRAINLIEST please :)

4 0
3 years ago
10x -20 plus 7x plus 4 equals 180 what is x
miskamm [114]
Answer:

x is approximately 11.5

Explanation:

10x - 20 + 7x + 4 = 180

17x - 16 = 180

17x = 196

x is approximately 11.5
5 0
2 years ago
Find the amount of time. I=$450, P=$2400, r=7.5%
BARSIC [14]
81000 would be your answer
4 0
3 years ago
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