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tekilochka [14]
3 years ago
15

HELPPP!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Xelga [282]3 years ago
3 0
First question : A
2cm×1cm×2+2cm×4cm×2+1cm×4cm×2= 28cm^2
Third question
7x+3(x-2)-4x+8
= 7x+3x-6-4x+8
=7x+3x-4x-6+8
=10x-4x+2
=6x+2
Idon't know the second one but i hope i could still help
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The rectangle below has an area of x^2-7x+10x square meters and a width of x-5x meters. What expression represents the length of
sergey [27]

Answer:

The area of a rectangle is:

\sf A=lw

Plug in what we know:

\sf x^2-7x+10=l(x-5)

Factor the left side:

\sf (x-2)(x-5)=l(x-5)

Divide (x - 5) to both sides:

\sf l=\boxed{\sf x-2}

So the length is x - 2 meters.

Step-by-step explanation:

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Which is the more reasonable measurement of the distance between the tracks on a railroad:
nataly862011 [7]

If you're comparing 1.435 * 10^(-3) mm to 1.435 * 10^3 mm, then the more reasonable measurement is 1.435 * 10^3 mm since,

1.435 * 10^3 mm = 1435 mm = 1.435 meters

1 meter is about 3.28 feet approximately

So 1.435 meters is slightly larger (about 4.708 feet) which is a fairly reasonable distance between the tracks on a railroad.

-------------------

Something like 1.435 * 10^(-3) mm is equal to 0.001435 mm, which is far less than 1 mm.

6 0
3 years ago
Does any know this answer
vichka [17]
F(n) = 75*1/5n

This is because the base value would be 75 and it is divided by 5 each part of the sequence. 
5 0
3 years ago
PLEASE SHOW WORK ILL GIVE BRAINLIEST DUE TODAY!!!
Vanyuwa [196]

Answers:

14 + 18 ÷ 2 x 18 – 7 = 169

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60 – 9 x 8 ÷ 8 x 6 = 6

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15 x 10 + 12 ÷ 3 + 9 = 163

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(10 ÷ 5)3 + 100 – 9 x 11 = 7

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8 x 4 + 9 – 9 + 18 = 50

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  • 41 - 9 + 18
  • 32 + 18
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3 x 8 x 2 – 42 + 5 = 11

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<em>i hope this helps, good luck :)</em>

3 0
3 years ago
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Kenya bought 5 pool noodles at $1.99 each, a unicorn
vampirchik [111]

Answer:74.04

Step-by-step explanation:

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