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ipn [44]
3 years ago
8

What is the value of the expression when a = 4? 2a^3

Mathematics
1 answer:
dedylja [7]3 years ago
8 0
I hope this helps you

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I really need help with this please
Tcecarenko [31]

Answer:

3x

Step-by-step explanation:

a = 4x - 4

The perimeter is equal to 14x + 8 but it is also equal to 2a + 2b, so

14x + 8 = 2(4x - 4) + 2b

14x + 8 = 8x - 8 + 2b

Let's move 2b to the other side of the equation, we get:

14x + 8 - 2b = 8x - 8

Now, let's move 14x + 8 to the other side too to find what -2b is equal to

-2b = 8x - 14x + 8 - 8

Gonna simplify:

-2b = -6x

Now, let's multiply both sides with -1 to find what 2b is equal to

-2b * -1 = -6x * -1

2b = 6x

Now, we know that 2*b is equal to 6x, but we need to find what side b is equal to, so we gonna divide 6x by two to get what b is equal to

2b = 6x

b = 3x

Side b is equal to 3x

4 0
2 years ago
You paid $9.60 for 4 pounds of potatoes. What is the unit cost of the potatoes?
Andreyy89

Answer:

$2.40 per potato

Step-by-step explanation:

9.60 divided by 4 is 2.40

5 0
3 years ago
Read 2 more answers
How do I find the missing side for question 39
lana66690 [7]

Hello from MrBillDoesMath!

Answer:

#39 6.1 (approx)

$41  14.6 (approx)

Discussion:

# 39

From plane trigonometry

cos(69)  = x/17  or

x = 17 * cos(69)   = 6.1 (approx)



#41

sin(59) = x/17 or

x = 17 * sin(59) =  14.6 (approx)


Regards,  

MrB


6 0
3 years ago
Grey ran 2.4 times as many miles as Emory if Emory run 2.08 miles how many miles did grey run
balu736 [363]

Answer:4.992

Step-by-step explanation: 2.4 • 2.08

8 0
3 years ago
Read 2 more answers
3/10 divided by 2.6. Type in a integer or simplified fraction
ollegr [7]

I got .115384615

It may be wrong on my part but message me if I messed up because I am actually smart.

6 0
3 years ago
Read 2 more answers
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