3 years ago

I had some trouble with my astronomy work. I have to solve for a^3. The amounts given are below.

Mathematics

1 answer:

Vadim26 [7]3 years ago

8 0

I think answer should be 18 please give me brainlest let me know if it’s correct or not okay thanks bye

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Evaluate 2b^2-4a+4a^2 for a= 3 and b= -8

masha68 [24]

Given a = 3 and b = - 8 ,

= > 2b² - 4a + 4a²

= > 2( - 8 )² - 4( 3 ) + 4( 3 )²

= > 2( 64 ) - 4( 3 ) + 4( 9 )

= > 128 - 12 + 36

= > 116 + 36

= > 152

$\:$

5 0

4 years ago

Read 2 more answers

Please hurry

Lerok [7]

Answer:

-4

Step-by-step explanation:

7 0

3 years ago

Need helps plsssssssssssssss

slavikrds [6]

Answer:

Step-by-step explanation:

4^3 is just 4*4*4

so 4*4=16

and 16*4=64

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6 0

3 years ago

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2b^2+4b–2=0 what is the answer?

s2008m [1.1K]

$2b^2+4b-2=0\\
2(b^2+2b-1)=0\\
2(b^2+2b+1-2)=0\\
2((b+1)^2-2)=0\\
2(b+1)^2-4=0\\\
2(b+1)^2=4\\\
(b+1)^2=2\\
b+1=-\sqrt2 \vee b+1=\sqrt2\\
b=-1-\sqrt2 \vee b=-1+\sqrt2

$

5 0

3 years ago

I need 50 gallons of milk replacer for calves and the powder mixture says it's 6.25 oz for 5 gallons how many oz of powder do I

zubka84 [21]

Answer:

62.5 oz

Step-by-step explanation:

We can use the ratio proportion method:

x:50::6.25:5

x = (50x6.25)/5

OR a more simple method is to do this:

5 gallons of milk require 6.25 oz. How many oz of powder do I need to get 10x that amount? Since 50 is 10x5, you do the same thing for 6.25, and get 62.5

3 0

3 years ago