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3 years ago

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Mathematics

2 answers:

Crazy boy [7]3 years ago

7 0

Answer: D.

Step-by-step explanation:

I am Lyosha [343]3 years ago

5 0

Answer:

Step-by-step explanation:

i took the test on usatestprep

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Pls help on this i cant do it

kogti [31]

Answer:

y=2x-1

Step-by-step explanation:

y=mx+b

insert Point (0,-1)

-1 = m * 0 + b

-1 = b

slope:

m = delta y / delta x

m = 2 / 1

m = 2

4 0

3 years ago

Read 2 more answers

What is the domain of y=log5x?

Leona [35]

There are no real values for log of 0 or negatives.

So the answer is B

4 0

3 years ago

Read 2 more answers

What is the solution of log2 (3x-7) =3

Valentin [98]

Answer:

x = 5

Step-by-step explanation:

because the log is base 2 you can remove the log by raing 2 to the power of each side:

$2^{log2 (3x-7)} = 2^{3}$

the 2 and log2 cancel leaving:

$3x-7 = 2^{3}$

this means we can now solve through simple algebra:

$3x-7 = 8\\3x = 8 + 7\\3x = 15\\3x/3 =15/3\\x = 5$

7 0

3 years ago

Read 2 more answers

What is the volume of a hemisphere with a radius of 2.1 m, rounded to the nearest tenth of a cubic meter?

Art [367]

Answer:

The volume of hemisphere is 19.4 cubic meter.

Step-by-step explanation:

Given:

A hemisphere is with a radius of 2.1 m.

Now, to find the hemisphere volume with radius 2.1 m.

$Radius\ (r) = 2.1 m.$

So, we put formula to get the volume of hemisphere:

$Volume=\frac{2}{3} \pi r^3\ \ \ \ \ (Taking\ the\ value\ of\ \pi =3.14)\\\\Volume=\frac{2}{3} \times 3.14\times 2.1^3\\\\Volume=\frac{2}{3} \times 3.14\times 9.26\\\\Volume=19.384\ cubic\ meter.$

Hence, the rounded to the nearest tenth of a cubic meter is 19.4 cubic meter.

Therefore, the volume of hemisphere is 19.4 cubic meter.

3 0

3 years ago

The angle of elevation of a ladder leaning against a wall is 60 degree and the foot of the ladder is 4.6 m away form the wall.Th

Irina-Kira [14]

Answer:

The length of the ladder is 9.2m

Step-by-step explanation:

4 0

3 years ago