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3 years ago

Simplify the expression. show your work. 22 (32 – 42)

2 answers:

8 0

If you would like to simplify the expression 22 * (32 - 42), you can do this using the following step:

22 * (32 - 42<span>) = 22 * (-10) = - 22 * 10 = - 220
</span>
The correct result would be - 220.

Alik [6]3 years ago

4 0

22(32-42)= 22(-10)
so, 22(-10)= -220
Do the math that has brackets first.

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A quantity with an initial value of 6200 decays continuously at a rate of 5.5% per month. What is the value of the quantity afte

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Step-by-step explanation:

Given that the initial quantity, Q= 6200

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So, the value of quantity after 1 month, $q_1 = Q- r \times Q$

$q_1 = Q(1-r)\cdots(i)$

The value of quantity after 2 months, $q_2 = q_1- r \times q_1$

$q_2 = q_1(1-r)$

From equation (i)

$q_2=Q(1-r)(1-r) \\\\q_2=Q(1-r)^2\cdots(ii)$

The value of quantity after 3 months, $q_3 = q_2- r \times q_2$

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From equation (ii)

$q_3=Q(1-r)^2(1-r)$

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$q_n= Q(1- r)^n$

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$q_{48}=Q(1-r)^{48}$

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$q_{48}=6200(1-0.055)^{48} \\\\q_{48}=410.32$

Hence, the value of quantity after 4 years is 410.32.

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3 years ago

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