2 years ago

ANSWER FAST SHOW YOUR WORK 1. 9.5 + x = 14.2

Mathematics

2 answers:

hoa [83]2 years ago

5 0

Since 14.2 - 9.5 = 4.7, 4.7 = x

enyata [817]2 years ago

4 0

Answer:

4.7

Step-by-step explanation:

14.2 - 9.5 = 4.7

hope that helps!

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for all values of x , a function f is defined by f(x)=x^2+7x+12 if f(a)=2, what could be the value of a?

Evgesh-ka [11]

Answer:

a = -2 or a = -5

Step-by-step explanation:

We want $f(a) = a^2 + 7a + 12 = 2$ . We can subtract 2 from both sides of this equation to get $a^2+7a+10=0$ . We can factor this to get that $(a+2)(a+5)=0$ . When the product of two numbers is equal to zero, one of the numbers must be equal to zero. This means that either a + 2 = 0, in which case a = -2, or a + 5 = 0, in which case a = -5.