Answer: See my answers below
Step-by-step explanation:
<em><u>Area formula = l * w</u></em>
1. 3 * 7
2. a * 4 or 4a
3. m * m or m^2
4. (x * 4)+ (4 * 1)
5. (d * 7) + (4 * 7)
6. (y * y) + (y * 3)
Answer:
x = -3
y = 1
Step-by-step explanation:
3x + 5y = -4
x + 5y = 2 (Solve for x) ------ New Equation: x = 2 - 5y
Solve for the first equation by plugging in the value of x, which is 2 - 5y.
3(2 - 5y) + 5y = -4
6 - 15y + 5y = -4
-10y = -10
y = 1
Use the value of y to solve for x
x + 5(1) = 2
x = 2-5
x = -3
X could either be 4 or 5, depending on which x the question asks. If you have to chose one answer go with 5 because it's associated with the y.
The answer is B.
In order for this chart to be true, each x and y pair must be proportional to the other ones. (in other words, each row of x and y should increase the same amount as the other ones.)
look at the first row. we can write this as 3/5 (x over y). then look at the third and fourth row. 6/10 = 3/5, and 9/15 = 3/5, so the pairs are proportional.
Answer: 33°
Step-by-step explanation:
