3 years ago

Help please and thank you

Mathematics

1 answer:

Juliette [100K]3 years ago

8 0

Answer:

infinity

Step-by-step explanation:

you can change x and then every answer will be different

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2 Points

Charra [1.4K]

Answer:

Step-by-step explanation:

let y = x - 2 and rearrange making x the subject, that is

y = x - 2 ( add 2 to both sides )

y + 2 = x

now change x to $f^{-1}$ (x) and y back to x, thus

$f^{-1}$ (x) = x + 2 → D

5 0

2 years ago

On a number line, the directed line segment from Q to S has endpoints Q at –8 and S at 12. Point R partitions the directed line

MissTica

Answer:

Option B.

Step-by-step explanation:

The given formula is

$x=\dfrac{m}{m+n}(x_2-x_1)+x_1$

It is given that a line segment has endpoints Q at –8 and S at 12. Point R partitions the directed line segment from Q to S in a 4:1 ratio. It means

$m=4$

$n=1$

$x_1=-8$

$x_2=12$

Substitute these values in the given formula.

$x=\dfrac{4}{4+1}(12-(-8))+(-8)$

Therefore, the correct option is B.

8 0

2 years ago

Read 2 more answers

An athlete eats 0.4 kg of protein per week while training. How much protein will she eat during 7 weeks of training? write the a

JulsSmile [24]

She will eat 2800 grams of protein.

7 0

3 years ago

What is the area of a sector with a central angle of 255 and a radius of 18.4 m?

Igoryamba

Answer:

The answer is 753.01 m².

Step-by-step explanation:

Given that the formula of sector is θ/360×π×r² where r represents radius of circle. Then, you have to substitute the values into the formula :

$area = \frac{θ}{360} \times \pi \times {r}^{2}$

Let θ = 255°

Let π = 3.14,

Let r = 18.4m,

$area = \frac{255}{360} \times 3.14 \times {18.4}^{2}$

$area = 753.01 {m}^{2} \: (near.hundredth)$

5 0

2 years ago

Last year, Jason's average in math was a 72. This year, his average is a 90. What is the percent increase in Jason's grade?

slamgirl [31]

Answer:

20% increase

Step-by-step explanation:

All you have to do is divide 72 by 90n and it will give you .8, move the decimal two places to the right to give you 80 and subtract 80 from 100 to get 20

7 0

2 years ago