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Arisa [49]
4 years ago
7

The sum of two numbers is 42 and the difference is 20. What are the numbers?

Mathematics
1 answer:
olganol [36]4 years ago
7 0
That could be correct
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Evaluate the function f(x)=x^2+6x+2 at the given values of the independent variable and simplify.
____ [38]

Answer:

a) 18

b)x^2+10x+18

c)x^2 -6x+2

Step-by-step explanation:

This is a case of plugging in the value into f(x).

a) f(-8)= -8^2 + 6(-8) +2

f(-8)= 64 + (-48) +2

f(-8)=64 + (-46)

f(-8)=18

b)  f(x+2)= (x+2)^2+6(x+2)+2

So here I'll take a break to explain what's going on, because x+2 is a binomial meaning two terms and it is being squared I have to multiply the whole thing by itself. Meaning: (x+2) x (x+2), this is also known as foiling!! and for the next part its distributing 6 into x and 2.

    f(x+2)= x^2+4x+4+6x+12+2

I'll reorder it

 f(x+2)= x^2+4x+6x+12+2+4

    f(x+2)= x^2+10x+18

c) f(-x)= -x^2+6(-x) +2

f(-x)= x^2 -6x+2

6 0
3 years ago
Can someone help me with this ASAP!!! And show the work plsss!
cupoosta [38]

Answer:

as soon as possible

Step-by-step explanation:

and it an 90 degree angle

u have to add it

5 0
3 years ago
Im having trouble figuring out the missing length and solving this, can I have some help?
belka [17]
I think the answer is 17
8 0
2 years ago
What is the value of 5 5 units, as a fraction greater than 1 1?
vfiekz [6]

Answer:

i thnk 10

Step-by-step explanation:sorry

8 0
3 years ago
Read 2 more answers
What is the word form for 6,362,049
luda_lava [24]
Six million three hundred sixty two thousand forty nine
4 0
3 years ago
Read 2 more answers
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