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elena-14-01-66 [18.8K]
3 years ago
8

I don't know how to solve these two types of questions: (x+y)(x-y)=20 and (z+z)(z+z)=63

Mathematics
1 answer:
Ksju [112]3 years ago
7 0

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If you have 36 ft of fencing what are the area of the different rectangles you could enclose with the fencing?consider only whol
n200080 [17]

The fence you have must fit the perimeter of the rectangle.

With 36 feet of fence, these are the rectangles that you can enclose:

1-ft x 17-ft . . . Area = 17 ft²

2 x 16 . . . Area =  32 ft²
3 x 15 . . . Area =  45 ft²
4 x 14 . . . Area =  56 ft²
5 x 13 . . . Area =  65 ft²
6 x 12 . . . Area =  72 ft²
7 x 11 . . . Area =  77 ft²
8 x 10 . . . Area =  80 ft²
9 x 9 . . . Area =  81 ft²


6 0
3 years ago
Read 2 more answers
The floor of a storage unit is 6 ft long and 8 feet wide what is the distance between two opposite corners of the floor
riadik2000 [5.3K]

Answer:

10 ft

Step-by-step explanation:

Use theorem pythagoras

Length = x

{x}^{2}  = 8 {}^{2} +   {6}^{2}  \\ x =  - 10 \\ x = 10

the answer is 10 because length can't be in negative number

4 0
2 years ago
A jet travels 1464 mi against the wind in 2 hours and 1704 mi with the wind in the same amount of time. What is the rate of the
anastassius [24]
The jet rate against wind is 732 mi an hour (1464/2) and 852 with the wind (1704/2)
6 0
2 years ago
Cube M has an edge length of
jeka57 [31]

Answer:

4

Step-by-step explanation:

6*(8*2)^2/(6*8^2)=2^2=4

3 0
3 years ago
If r = 9, b = 5, and g= −6, what does (r + b − g)(b + g) equal?
r-ruslan [8.4K]

Answer:

-20

Step-by-step explanation:

(r + b − g)(b + g)

we have fom statement:

r = 9    

b = 5

g= −6

so we have:

(r + b − g)(b + g)= (9+5-(-6))*(5+(-6))

(r + b − g)(b + g)= (14+6)*(-1)

(r + b − g)(b + g)= -20

8 0
2 years ago
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