Answer:
14.13 ft²
Step-by-step explanation:
The area of a semicircle is
We were given the radius of the semicircle to be: r=3 feet.
We were also asked to use π as 3.14.
We substitute into the formula to get:
This is the same as:
Or
The area of the semicircle is 14.13 ft²
Let's start with y = 4x + b (since 4 is the slope);
We need to find what number should be put instead of b;
Then, let's see what needs to be done;
Plug in the y and x values from the coordinate (22,12) into y=4x+b;
12 = 4(22) + b
Solve;
12 = 88 + b
12 - 88 = b
b = -76
Remember the equation y = 4x + b? Put the -76 instead of b:
y = 4x + -76
or: y = 4x - 76
That is the equation.
To make it standard form, put x and y both in the left side, with x first then y:
-4x + y = -76
^^Answer!
Answer:
5 11/85
Step-by-step explanation:
First see how many times a whole number can be found.
436/85 = 5.1294
The denominator goes into the numerator 5 times.
Now we find a new numerator.
436 - (85 * 5) = 11 (this is the amount left over after we made 5 wholes.)
Now we see 5 11/85
It cannot be simplified further.
Answer:
180=144+3X
X=12
Step-by-step explanation:
angles must add to 180
180=45+80+3X+19
gather like terms
180=144+3X
subtract
36=3X
divide
X=12
To solve, lets convert the number so that they both have the similar exponents.
in comparing 20,000*10^-28 and 9*10^-28, we can see that one is nearly 2,000 times bigger than the other
20,000/9=2222
Answer= C