3 years ago

Find f if f(x)=23; 23= x²+7

Mathematics

1 answer:

ioda3 years ago

8 0

Don't you mean "x?"

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PLS 40 points

Pavlova-9 [17]

Step-by-step explanation:

Let $p1$ be the point $(-1,4)$

Let $p2$ be the point $(3,-4)$

The equation of the line passing through two points $p1=(x_{1},y_{1})$

and $p2=(x_{2},y_{2})$ is $\frac{y-y_{1}}{x-x_{1}} =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

substituting $p1,p2$ in the above equation yields

$\frac{y-4}{x-(-1)}=\frac{-4-4}{3-(-1)}$

which when simplified gives $\frac{y-4}{x+1}=\frac{-8}{4}$

which when further simplified gives $2x+y=2$

5 0

3 years ago

What is Best Buy out of 3 lbs for 1.89 or 5lbs for 2.49

vodomira [7]

1.89 / 3 = 0.63 per pound
2.49/ 5 = 0.498 per pound

answer
<span>5lbs for 2.49 is the best buy</span>

8 0

3 years ago

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There are 480 sophomores and 520 juniors in a high school. Find the ratio of juniors to sophomores

kow [346]

Answer:

13:12, 13 to 12, or 13/12

Step-by-step explanation:

520:480

Divide both numbers by GCF (40)

13:12

4 0

2 years ago

Ez pts

Kobotan [32]

Answer:

well first 312 in radical form is √312 and that simplified is 2√78 or 17.66352173

Step-by-step explanation:

3 0

2 years ago

Need help don’t like math help

MArishka [77]

Answer: 14.51 gallons i think.

Step-by-step explanation: add them

7 0

2 years ago

Read 2 more answers