The domain of an inverse of a relation is the domain of the original relation true or false

A regular polygon has a measure of (8x+6) and a measure of (4x+12) find the measure of each angle please show work

stepladder [879]

Answer:

The measure of each angle is 18°

Step-by-step explanation:

we know that

A <u><em>regular polygon</em></u> is a polygon whose all sides are equal and also all angles are equal.

so

In this problem

$(8x+6)=(4x+12)$

Solve for x

$(8x-4x)=(12-6)$

$4x=6$

$x=1.5$

Substitute the value of x

$(8x+6)=8(1.5)+6=18\°$

therefore

The measure of each angle is 18°

6 0

3 years ago

Helen spent 7.75 to purchase 23 snack sized bags of chips (c) and pretzels (p). Chips cost 0.25 and pretzels cost 0.50. How much

hodyreva [135]

Answer:

15 chips and 8 pretzels

Step-by-step explanation:

According to the problem, calculation of the given data are as follows,

Total spent = $7.75

Number of snacks = 23

Chips cost = $0.25

Pretzels cost = $0.50

Let number of chips = X

So, number of pretzels = 23 - X

So, we can calculate number of snacks by using following equation

0.25X + 0.50 ( 23 - X) = $7.75

0.25X + 11.50 - 0.50X = 7.75

0.25X - 0.50X = 7.75 - 11.5

-0.25X = -3.75

X = -3.75 ÷ -0.25 = 15

Hence, Number of chips = 15

Number of Pretzels = 23 - 15 = 8

8 0

3 years ago

The number of kilograms of water in a human body varies directly as the mass of the body. A 93-kg person contains 62-kg of water

slava [35]

We know that the variation is proportianal, that is we can relate the quantities as:

$y=kx$

where y is the mass of the body and x is the mass of water. From the values given we have that:

$\begin{gathered} 93=62k \\ k=\frac{93}{62} \\ k=\frac{3}{2} \end{gathered}$

hence the constant of proportionality is 3/2. Now, if the mass of the water is 75, then the mass of the body is:

$\frac{3}{2}\cdot75=112.5$

Therefore, the mass of the body is 112.5 kilograms

4 0

1 year ago

Lance wrote down a lot of plus sevens and minus fours. Altogether he wrote 22 digits. When he came to add them all up the total

AURORKA [14]

So, when solving this: you’ll want to consider multiples of 7 and 4.

7,14,21,28
4,8,12,16,20,24,28

If you write four +7’s and seven -4’s, they cancel out. Given that that is 11 digits, do it twice and you have your answer.

Eight +7’s
Fourteen -4’s

6 0

3 years ago

Slope of a = (3,-2) b = ( 7, 3 )

natali 33 [55]

Answer:

Down here VVVVVVVV

Step-by-step explanation:

The formula for slope is rise/run there a whole lot of variations of it tho see

(Srry abt my hand writing XD)

rise is basically how far away are the 2 y values from each other

(It will always be positive btw mate.

In this case the rise would be 5

because you need to move up 5 spaces to reach 3 from -2

Now the run which is how far away the 2 x values are from each other.

In this case it would be 4

because you need to move 4 spaces from 3 to reach 7

so it would the slope would be 5/4 :)

This may not be right but you can get the just of how to do it hopefully

Im learning this right now too XD

8 0

3 years ago