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iren2701 [21]
3 years ago
10

Multiply. −2(8) plz help me

Mathematics
2 answers:
-Dominant- [34]3 years ago
7 0

The answer is -16. If it was two negative numbers, the answer would be positive

Luda [366]3 years ago
4 0
8 x2 is 16; we have a negative sign, so that makes our answer -16
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$400 interest is earned on a principal of $2,000 at a simple interest rate of 5% interest per year. For how many years was the p
bogdanovich [222]

Answer:

4 years

Step-by-step explanation:

Given data

Simple interest= $400

Principal= $2000

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The simple interest formula is given as

SI=PRT/100

substitute and solve for T

400=2000*5*T/100

cross multiply

400*100= 10000*T

40000=10000T

T= 40000/10000

T= 4 years

Hence the time taken is 4 years

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2 years ago
Molly buys 12 rolls of wallpaper for £111.00.<br> How much is 1 roll of wallpaper?
alex41 [277]

Answer: £9.25


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3 years ago
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3 years ago
For accounting purposes, the value of assets (land, buildings, equipment) in a business are depreciated at a set rate per year.
lidiya [134]

Answer: $ 125987.80

Step-by-step explanation:

Given: The value, V(t) of $393,000 worth of assets after t years, that depreciate at 15% per year, is given by the formula

V (t)=V_o(b)^t, here V_o is the initial asset value  and b is the multiplicative decay factor.

The exponential decay function is given by ;-

f(x)=A(b)^x, where A is the initial value , x is the  times period and b is the multiplicative decay factor.

where b = 1-r, r is the rate of decay.

Since r = 15%=0.15

Therefore, b = 1-0.15=0.85

Now ,for 7 years , the value of assets is given by :-

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4 0
3 years ago
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Complete the square to transform the expression x^2+4x 2 into the form a(x − h)2 + k.
faust18 [17]

Answer:

(x+2)^2-2

Step-by-step explanation:

we have the expression

x^2+4x+2

Convert to vertex form

a(x-h)^2+k

where

a is the leading coefficient

(h,k) is the vertex

Complete the square

(x^2+4x+2^2)+2-2^2

(x^2+4x+2^2)-2

Rewrite as perfect squares

(x+2)^2-2

so

The coefficient a =1

The vertex is the point (-2,-2)

4 0
3 years ago
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