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3 years ago

Find the inverse of y= 2x^2-8

Mathematics

1 answer:

ahrayia [7]3 years ago

4 0

Answer:

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Step-by-step explanation:

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The measures of the angles of a triangle are shown in the figure below. solve for x

Vlad1618 [11]

Answer:

67 degrees

Step-by-step explanation:

All angles in a triangle add up to 180 degrees. So...

23 + x + 90 = 180

113 + x = 180

x = 67 degrees

8 0

3 years ago

Help please and this time please put an explanation just don't only say the answer <br> thank you

coldgirl [10]

✽ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ✽

➷ T $\boxed{4}$ B $\boxed{24}$

✽ Ok, so B is the number of boys and T is the number of teachers.

➷ $t \div ( B + 18) = \frac{2}{21}$

$\frac{B}{18} = \frac{4}{3}$

✽ Then solve the second equation for B.

➷ $B = 24$

✽ Plug into the first equation to find T.

➷ $T \div (24 + 18) = \frac{2}{21}$

$T = 4$

✽

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ May ♡

5 0

3 years ago

I really need some help on this question

Leya [2.2K]

Answer:

What is the car's rate in kilometers per minute?

$0.9\frac{km}{min}$

How many kilometers will the car travel in 5 minutes?

$4.5\ km$

Step-by-step explanation:

If we know:

$\frac{54\ km}{1\ hour}$

And there are 60 minutes in an hour:

$\frac{1\ hour}{60\ minutes}$

We can do:

$\frac{54\ km}{1\ hour} * \frac{1\ hour}{60\ minutes} = \frac{54\ km}{60\ minutes} = 0.9 \frac{km}{min}$

From here, we figure out the distance from minutes:

$0.9\frac{km}{min} * 5 = 4.5\ km$

3 0

2 years ago

1. In which quadrant does θ lie given that sinθ>0 and cosθ<0?

expeople1 [14]

Answer:

$\theta$ is in quadrant II

Step-by-step explanation:

Given

$\sin(\theta) > 0$ and $\cos(\theta) < 0$

Required

Where is $\theta$

$\sin(\theta) > 0$ and $\cos(\theta) < 0$ imply that

$\theta$ is in quadrant II

Because that is only quadrant where $\sin(\theta) > 0$ and $\cos(\theta) < 0$ exist.

4 0

3 years ago

If the H.C.F of 210 and 55 is expressible in the form of 210*5 + 55y , find 'y' ?

Ilya [14]

Answer:

y = - 19

Step-by-step explanation:

Express 210 and 55 as products of their prime factors, that is

210 = 2 × 3 × 5 × 7

55 = 5 × 11

Identify the prime factors that both numbers have in common and multiply them.

Here only 5 is common, thus

HCF = 5

Thus

5 = 210 × 5 + 55y, that is

5 = 1050 + 55y ( subtract 1050 from both sides )

- 1045 = 55y ( divide both sides by 55 )

y = - 19

7 0

3 years ago

Find the inverse of y= 2x^2-8​

Find the inverse of y= 2x^2-8