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kirza4 [7]
3 years ago
14

If a= -5, what is the value of a^2-4/a+2

Mathematics
1 answer:
Luda [366]3 years ago
5 0

Answer:

-7

Step-by-step explanation: When a= 5, let's substitute all a's with 5 in the expression:

\frac{a^{2}-4 }{a+2}\\\frac{(-5)^{2}-4 }{-5+2}\\\\\frac{25-4}{-3}\\\frac{21}{-3} \\= -7

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Does anyone know how to solve |4x+3|-9<5
elixir [45]

Answer in fraction form:   -17/4 < x < 11/4

Answer in decimal form:   -4.25 < x < 2.75

=======================================================

Work Shown:

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-14 < 4x+3 <  14 .... see note at the bottom

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6 0
3 years ago
Guided Practice
SCORPION-xisa [38]

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A.

$5352.90

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A=p(1+r)^t

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A=5,352.90

.........................................................

Answer:

The Final Investment Value is    

Step-by-step explanation:

we know that    

The compound interest formula is equal to  

where  

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P is the Principal amount of money to be invested  

r is the rate of interest  in decimal

t is Number of Time Periods  

n is the number of times interest is compounded per year

in this problem we have  

substitute in the formula above  

 

5 0
2 years ago
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