Answer:
27
Step-by-step explanation:
So first we need to plug in 5 as the variable a and -7 as the variable b
4(5)-(-7)
Next we multiply the 4 and the 5 together to get 20
4(5) = 20 or 4 x 5 = 20
20-(-7)
Now we subtract negative 7 from 20
20-(-7) = 27
This can also be written as 20 plus 7 as a mathematical rule states: two negatives make a positive. So:
20-(-7) = 20 + 7
Both of these are equivalent in every sense of the word and give us our final answer of 27
160000000 =
move the decimal so only one number is to the left
we need to move it 8 times
1.60000000 *10^8
1.6*10^8
58413000000
move the decimal so only one number is to the left
5.8413000000 * 10^10
5.8413*10^10
Make the number line go to 1 and forward 4. For example
——
-
12345678910
Answer:
A
Step-by-step explanation:
calculate 20% of $88
× $88 = 0.2 × $88 = $17.60
Answer:
6/7
Step-by-step explanation:
so, here's the thing ,the product of the slopes of perpendicular lines when multiplied must be equal to -1. So in this situation ,first find the slope of the line that passes through the given points like this :
m = y2 - y1 / x2- x1 (formula for the slope)
m= 7 - 0 / 3- 9
m=7 /-6
now you can find the perpendicular slope like this
m1 * m2= -1. (m1 = 7/-6)
7/-6 *m2=-1
m2 = 6/7
