Answer:
A
Step-by-step explanation:
I honestly couldn't tell you how to do this, I don't understand it. I just took the test and got this question correct. The answer is A, (5-7)^2.
Answer:
(1,1) is a solution of the system.
Step-by-step explanation:
Let's solve the system.
y = 2x - 1
5x - 4y = 1
In the first equation, y is already separated as a function of x. So we replace in the second equation;
5x - 4(2x - 1) = 1
5x - 8x + 4 = 1
4 - 1 = 8x - 5x
x = 1
y = 2x - 1 = 2(1) - 1 = 1
(1,1) is a solution of the system.
Answer:
Step-by-step explanation:
+55+%2B+.5x+=+.7x+
+.2x+=+55+
+x+=+275+
1 sunflower = $?
8 sunflowers = $18
Divide $18 by 8 = 2.25
1 sunflower is $2.25.
Answer:
<h2>384 yd²</h2>
Step-by-step explanation:
The formula of a surface area of a cube:
We have <em>a = 8 yd</em>.
Substitute:
