Answer:
73.0 m²
Step-by-step explanation:
Answer:
1) 500
2) 60
3) 24
4) 20
5) 6
6) 63
7) 35
8) 14
9) 15
10) 12
Step-by-step explanation:
First, find 10%
To find 10% of a number, just take off one zero, or move the decimal point back once.
So let's do #1
100% of 50
Find 10% of 50 = 5
Now we've found 10%, we still have 40% left (because it's 50%; 50-10=40)
Multiply 5 by 10
5 × 10 = 50
Let's do #7
60% of 70
Find 10% of 70 = 7
Multiply 7 by 5 (because its 60% and we've done 10%; 60-10=50)
7 × 5 = 35
:) hope i helped!
Answer:
-14x - 9y = 6
Step-by-step explanation:
If we subtract the second equation from the first, we will get this setup:
(-7x - y) - (7x + 8y) = -14x - 9y
0 - (-6) = 6
So the resulting equation -14x - 9y = 6
Answer:
slope= 0.52
Step-by-step explanation:
For American women
Mean (x) = 64 inches
Standard deviation (sx) = 2.7 inches
For American Men
Mean(ÿ) = 69.3 inches
Standard deviation (sy) = 2.8 inches
r = 0.5
Slope = ??
Husband height = Y
Wife height = X
the general equation of regression line
y = a + bx
The slope of the regression line is the linear correlation coefficient multiplied by the standard deviation for Y
b = r (sy/sx)
b = 0.5(2.8/2.7)
b = 0.52
The intercept a = ÿ - bx
a = 69.3 - 0.52(64)
a = 69.3 - 33.28
a = 36.02
The equation of the regression line y = a + bx
y = 36.02 + 0.52x
Answer:
Well on of the properties states that unless there are parenthesis, you multiply and divide first then you add and subtract. So, first we multiply 28*4 and that leaves use with 112, now if there is no more multiplication, division, or parentheses, and there's not. We can continue all we do is add 18+112 and we get our answer of 130.