A= 4.4 B= 0.875 should be the answers
Answer:
9m ×5m
Step-by-step explanation:
Area of a rectangle= length ×width
Let the width be W meters and the length be L meters.
2 equations can be written from the given information:
45= WL -----(1)
L= W +4 -----(2)
Substitute (2) into (1):
45= W(W +4)
<em>Expand:</em>
45= W² +4W
<em>-45 on both sides:</em>
W² +4W -45= 0
<em>Factorise:</em>
(W +9)(W -5)= 0
W+9=0 or W-5=0
W= -9 or W= 5
(reject)
Substitute W= 5 into (2):
L= 5 +4
L= 9
∴ The dimensions of the garden is 9m ×5m.
Answer:
57 mph
Step-by-step explanation:
were tryin to find its speed in the terms of mph which is miles per hour, so we need to find out how many miles it goes in a hour, so we divide 399 mph by 7 hours to get 57 mph.
GCF of given monomials are 
<em><u>Solution:</u></em>
<em><u>Given that we have to find the greatest common factor</u></em>
Given monomials are:

When we find all the factors of two or more numbers, and some factors are the same, then the largest of those common factors is the Greatest Common Factor
Let us first find the GCF of 20 and 8 and then find GCF of variables and then multiply them together
<em><u>GCF of 20 and 8:</u></em>
The factors of 8 are: 1, 2, 4, 8
The factors of 20 are: 1, 2, 4, 5, 10, 20
Then the greatest common factor is 4

Thus GCF is 
<em><u>Therefore GCF of monomials are:</u></em>

Thus GCF of given monomials are 