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madreJ [45]
3 years ago
15

Why is 1 + (−5) equal to −4?

Mathematics
2 answers:
ruslelena [56]3 years ago
8 0

Answer:

because its 5 units to the left on a horizontal number line

tester [92]3 years ago
8 0

Answer:

The answer to the question is D

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I'm new to this and I dont really understand this
agasfer [191]

Answer:

So starting off with 1a f(4)

We simply substitute x with 4 for the function

f(4)=2(4)-5

f(4)=8-5

f(4)=3

Next 1b, here it's a little different since you have to multiply the functions I think ( please correct me if I'm wrong).

gf(4), basically means functions g and f are being multiplied and their variables are being substituted with 4.

g(4)=4^2+3

g(4)=16+3

g(4)=19

and we also know from before that f(4)=3, so we'll do 19 times 3 which is 57

For the next two, I may be wrong, but I'm still going to try:

anything to the power of a negative is a fraction so for f^-1(x)=2x-5 we'll have 1/f(x)=x/2+5/2

And then for g^-1, we'll have 1/g(x)=\sqrt{x-3}  \sqrt{x-3}

Hope I helped :)

5 0
2 years ago
How to solve this help pls
Valentin [98]

Answer:

2x^{2} +\frac{7}{x}

Step-by-step explanation:

divide each by x

7 0
3 years ago
If the length of FG is 6 units, what is the length of EH?
QveST [7]

FG goes through the center of the circle, so FG is diameter.

d = 2r \\ r =  \dfrac{d}{2}  \\  \\ r =  \dfrac{6}{2}  = 3

EH=r=3

Answer: EH=3

4 0
3 years ago
Evaluate the integral. (3 + 1/4 u^4 − 2/3 u^9) du
polet [3.4K]
<span> (3 + 1/4 u^4 − 2/3 u^9) du</span>

6 0
3 years ago
Amanda can jog 18 miles in 5 hours.<br> At this rate, how many miles can Amanda jog in 4 hours?
vekshin1

Answer:

14.4 miles

Step-by-step explanation:

5 goes into 18 3.6 times and 3.6 x 4 = 14.4, she can run 3.6 miles per hour

3 0
3 years ago
Read 2 more answers
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