3 years ago

(07.03)

Mathematics

2 answers:

Iteru [2.4K]3 years ago

7 0

Answer:

0 I think

Step-by-step explanation:

lakkis [162]3 years ago

6 0

0 solutions because 5x will cancer each other making de solutions undefined

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Answer? .............................

kumpel [21]

ANSWER TO QUESTION ONE IS 5

5x2+5=15

5-4=1

15x1=15

QUESTION 2

X = 20

IDK 3 :(

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3 years ago

The slope of a line parallel to y=2x+1 is 2

Ann [662]

Yes. Parallel means same slope as original line. So it’s 2

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3 years ago

If f(x) = 2x+4, which of the following is the inverse of f(x)?

creativ13 [48]

Answer:

${f}^{ - 1} (x)= \frac{x}{2} - 2$

Step-by-step explanation:

The given function is

$f(x) = 2x + 4$ Let

$y = 2x + 4$

Interchange x and y.

$x = 2y + 4$

Solve for y,

$x - 4 = 2y$

Divide both sides by 2

$y = \frac{x}{2} - 2$

Therefore;

${f}^{ - 1} (x)= \frac{x}{2} - 2$

3 0

2 years ago

For the sphere shown, r = 4.2 cm.<br> What is its volume, to the nearest cubic centimeter?

DochEvi [55]

V = 4/3(pi)(r^3)
V = 4/3(pi)(4.2^3)
V = 310 cm^3

Good luck!

8 0

2 years ago

19z+12=20z–8<br> help i dont really understanddd!!!

alekssr [168]

Answer:

z = 20

Step-by-step explanation:

subtract 19z from 20z, and add 8 to 12. you will be left with 20 = 1z. Divide 1 by 20 and you will have Xz =20.

I hope this helps!

6 0

2 years ago