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dalvyx [7]
3 years ago
9

I really need this one answered, I just can’t figure it out.

Mathematics
1 answer:
Katena32 [7]3 years ago
4 0
25.2 divided by 4.2 =6
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What is the value of 5k2−6 when k = 9?
Anarel [89]

Answer:

84

Step-by-step explanation:

Plug in 9 for k.

5(9)(2) - 6

first: (9)(2) = 9 x 2 = 18

5(18) - 6

second: 5(18) = 5 x 18 = 90

last: 90 - 6 = ?

84

hope this helps

5 0
2 years ago
For what value of a do the lines 5x–2y=3 and x+y=a intersect at a point on the y-axis?
inna [77]

Answer:

  a = -3/2

Step-by-step explanation:

You can set x=0 and solve for y to find the y-intercept in each case.

  first equation: y-intercept = -3/2

  second equation: y-intercept = a

To make these equal, we must have ...

  a = -3/2

5 0
3 years ago
Explain how patterns are used in mathematics
jeka94

Answer:

shapes

Step-by-step explanation:

The patterns are shapes

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%282%20-%206x%29%20-%204%28x%20%20%2B%20%20%5Cfrac%7B3%7D%7B2%7D%29%20
Art [367]

Answer:

x=-2

Step-by-step explanation:

1/2(2-6x)-4(x+3/2)=-(x-3)+4

(1-3x)-4x-6=-x+3+4

-7x-5=-x+7

Tranpose

-7x+x=5+7

-6x=12

Divide by -6

x=-2

4 0
3 years ago
Smooth, suave, ingratiatingly pleasant
mash [69]
I say the answer is B. Bland

4 0
3 years ago
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