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2 years ago

Find the value of x. helpppp

Mathematics

1 answer:

Bezzdna [24]2 years ago

8 0

Answer: $55^{\circ}$

Step-by-step explanation:

The measure of the third unknown arc is

$360^{\circ}-70^{\circ}-110^{\circ}=180^{\circ}$ .

So, $x=\frac{180^{\circ}-70^{\circ}}{2}=\boxed{55^{\circ}}$

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You want to tip 15% on a $64.40 tab how much will you end up spending

Delvig [45]

Answer: If I am correct you should end up spending $74.06

Explanation: To find out how much a 15% tip will be you have to multiply $64.40 by 0.15 by doing this you should get $9.66 this is how much a 15% tip is with the amount of money spent. Then add $9.66 to $64.40 then you should get $74.06

4 0

3 years ago

F(x) = 2x2 – 3x 7 for the input value 2.what is the value of the function when x = 2?

Ad libitum [116K]

I hope this helps you

1)

f (2)=2.2^2-3.2-7

f (2)=8-6-7

f (2)= -5

2)

f (2)=2.2^2-3.2+7

f (2)=8-6+7

f (2)=9

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4 years ago

-y varies inversely with x. When y = 9.6, x = 12. What is the value of k, the constant of inverse variation?

alisha [4.7K]

Question 1:

For this case we have an equation of the form:

$y = \frac {k} {x}$

Where,

<em>k: inverse variation constant. </em>

Then, substituting values we have:

$y =\frac {k} {x}$

From here, we clear the value of k.

We have then:

$k = 9.6 * 12\\k = 115.2$

Answer:

the constant of inverse variation is:

$k = 115.2$

Question 2:

For this case we have:

$y = \frac {k} {x}$

Where,

<em>k: constant of variation. </em>

Then, substituting the value of the constant we have:

$y =\frac {5.6} {x}$

We now substitute the value of x:

$y = \frac {5.6} {4}\\y = 1.4$

Answer:

the value of y when x = 4 is: $y = 1.4$

6 0

4 years ago

A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books i

dybincka [34]

A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books it buys. The store manager can use the equation P(x)=5x−1.5x to determine the store's profit, P(x), where x is the number of books that the store sells. Which statement about the book store is true based on the profit equation?

Cost Price of book, C.P.=$1.50

Selling Price of book, S.P.=$5

PROFIT=S.P. -C.P.

So, Profit=$5-$1.50=$3.50

So, Profit=$3.50 on each book

Or, we are given P(x)= 5x-1.50x

Or, P(x)=3.50x

For each book, we must divide the profit P(x) by x, that is, number of books

$\frac{P(x)}{x}=\frac{3.5x}{x}$