Answer:
-4, 5
Step-by-step explanation:
y=f(x)
to find the x intercepts then y must be 0
0=f(x), solutions are x=-8, x=1
when 0=f(x+4), you simply add 4 to each intercept's x coordinate
-8+4=-4
1+4=5
-4, 5
Answer:
31.96
Step-by-step explanation:
The product of 2 numbers is simply one number multiplied by another
6.8 x 4.7 = 31.96
As a sanity check, just round the numbers off to a whole numbers and take a product of those two:
i.e 6.8 rounded off to the nearest whole number is 7 and 4.7 rounded off to the nearest whole number is 5.
7 x 5 = 35
If you look at the possible answers, only 31.96 is anywhere close to 35, hence you can be be more confident that your answer of 31.96 is correct.
You can use the commutative property to switch the order of the numbers. You could make it 20x5x9. 20x5=100 and 100x9=900.
Answer:
Just find the distance of the vertices of the quadrilateral ( such as : AB, BC, CD DA )by using distance formula...
Then if opposite sides of quadrilateral is equal then it is rectangle .....
hope you understand...
Question 4:
Area = 1/2(A+B)*h
1/2(12+6)*5
1/2(18)*5
9*5
45
Question 5
Area = 1/2 (A+B)*h
1/2(12+16)*9
1/2(28)*9
14*9
126