First we need to convert the given equation of circle to its standard form, only then we can calculate its center and radius.
The above equation is in standard form.
The center of the circle is (-7, 5) and its radius is 3.
Answer:
10
Step-by-step explanation:
5/x = 4/8
Cross multiply
4*x = 5*8
4x = 40
x = 10
Answer is 10
You are correct
Answer:
He needs to work for 40 whole hours
Step-by-step explanation:
In this question, we are tasked with calculating the amount a Tv will cost Bob in terms of the number of hours he needs to work.
Let’s look at the total cost he has to pay.
a. $500
b. 8% tax = 8/100 * 500 = $40
c. He is paying 2 bills of $35 each making a total of 2 * $35 = $70
The total amount he is to pay is thus; 500 + 40 + 70 = $610
Let’s look at his income ;
a. Bonus $45
b. Birthday gift $85
The total amount of money he has asides his salary to offset the bill is 45 + 85 = $130
The balance to pay from his salary would be $610 - $130 = $480
The number of hours he has to work since he earns $12 per hour would be 480/12 = 40 hours of work
Answer:
a. y=-2x
Step-by-step explanation:
The equation of a direct proportion is of the form where k is the constant of proportionality.
From the given options, the only equation that is of the form, is
.
In this case is the constant of proportionality.
Therefore the correct option is A.
Answer: 141.12 in²
Step-by-step explanation:
Separate into two triangles where the height extends from the 147 degree angle to the 28.8 in side.
cos57 = A/18
A = 9.8 in
Plug into the following formula:
bh = (28.8)(9.8) = 141.12 in²