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Papessa [141]
3 years ago
13

Expand: (5a + 2)(a + 4)

Mathematics
1 answer:
Fudgin [204]3 years ago
4 0

Answer:

5a^2+22a+8

Step-by-step explanation:

5a(a+4)2(a+4)

Then you times each of the brackets

5a^2+20a

+2a +8

____________

=5a^2 +22a +8

and that's ur answer. I like to line it up so it's easier. I don't know if u meant by this but yeah I think it is right

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Simon invested $ 1,550 at 6.5 simple interest.He earned $302.25 in interest after t years. What is the value of t?
Marta_Voda [28]
<span>6.5% of 1,550 = 1,550 * .065 = 100.75 per year 100.75 * T years = 302.25 T = 302.25/100.75 = 3 years

ur answer is 3</span>
8 0
3 years ago
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Solve the following equation for x.<br> 0.1(x + 250) = 5,000<br> h
yan [13]

Answer:

x=49750

Step-by-step explanation:

0.1(x + 250) = 5,000

Divide each side by .1

0.1(x + 250)/.1 = 5,000/.1

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3 years ago
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what are two equivalent expressions to the following radical expression: (√10 to the 4th power x √12 to the 4th power) to the 8t
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Answer:

(14400x^4)^8

Step-by-step explanation:

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3 0
3 years ago
5(2x + 3)2 when x = 3.
Anni [7]

Answer:

Step-by-step explanation:

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6 0
3 years ago
HELLPPPP!!!
Kamila [148]

A + M = 40

M = 2A + 4

A + 2A + 4 = 40

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