Answer:
$63
Step-by-step explanation:
we know that
Keith bought 4 shirts for $36
so
using proportion
Find out would be the cost for 7 shirts
Let
x ----> the cost for 7 shirts
Answer:
588 sq. in.
Step-by-step explanation:
The total volume of air inside the skylight is in the shape of a pyramid, not the rectangular prism at the bottom.
So, if we look at the pyramid, it has a square base with dimensions 14 x 14. Its height is 11 - 2 = 9.
Formula for volume of a pyramid is:
V = 1/3 * Area of Base * height
Area of Base (since it is a square) = 14 * 14 = 196
Height is 9
<em>plugging into the formula, we get:</em>
<em></em>
<em />
<em>Hence, volume is 588 sq. in.</em>
X is 3
y is 2
you have to replace x with a zero and divide 12 by it and then you do the same for y
Answer:
7 -1 6 | -8
7 -5 7 | 1
0 1 -4 | -5
Step-by-step explanation:
Note that there are four columns in this system, representing the variables x, y and z and constants. So the given matrix pattern is appropriate: It has three columns for the coefficients of x, y and z and one column for the constants.
We need only identify the coefficients and transfer them into the appropriate boxes of the matrix pattern.
We get:
7 -1 6 -8
7 -5 7 1
0 1 -4 -5
5^2+(-2)^2=29
magnitude=(29)^(1/2)=around 5.3852