2 years ago

Does anyone know how to do 10-21?

Mathematics

1 answer:

Jet001 [13]2 years ago

5 0

Answer:

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What is the answer to 7,8,9

Yuliya22 [10]

Answer:

7) -2 and 3

8) -2 and 3

9) Discrete

Step-by-step explanation:

7 0

3 years ago

The area of the rectangle shown is 66m^2

tekilochka [14]

Answer:

143cm

Step-by-step explanation:

Area=2(l+b)

Substitute the values for the variables.

66=2(l+22/5)

66=2xl+2x22

66=2l+44

Cross multiply

66x5=2l+44

330=2l+44

Collect like terms

-2l = 44-330

-2l = -286

-2l = -286

-2 -2

l=143

The missing length is 143m.

3 0

2 years ago

can someone please help? And can you also explain how to do it, because I forgot the steps on how to do it

alexdok [17]

Answer:

option 3) EF= -7 FG= -7

Step-by-step explanation

X= 1/2

EF= 2X-8

= 2 X 1/2 -8

=1 - 8

EF = -7

FG= 4X -9

= 4X 1/2

2 - 9

FG = -7

7 0

2 years ago

A rectangle had a length of 2x-7 and a with of 3x+8y. Write and simplify an expression for the perimeter of that rectangle?

wel

Answer:

Step-by-step explanation:

A rectangle had a length of 2x-7 and a width of 3x+8y

Perimeter P = 2(l + w)

P = 2(2x - 7 + 3x + 8y)

P = 2(5x + 8y - 7)

P= 10x + 16y - 14

4 0

3 years ago

Help! I need some help...

AURORKA [14]

The complement is 38
and the supplement is 128

8 0

2 years ago

Read 2 more answers