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Zanzabum
3 years ago
12

2^3 + 3(9-5) plz help

Mathematics
1 answer:
Romashka [77]3 years ago
6 0

Answer:

The answer is 20

Step-by-step explanation:

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The area of a trapezoid is 243cm2. The height is 18cm and the length of one of the parallel sides is 10cm. Find the length of th
Irina18 [472]

Answer:

Side_2 = 17\ cm

Step-by-step explanation:

Given

Shape: Trapezoid

Area = 243cm^2

Height = 18cm

Side_1 = 10cm

Required

Determine the length of the second parallel side

The area of a trapezoid is:

Area = \frac{1}{2}(Side_1 + Side_2) * Height

Substitute values for Area, Height and Side1

243 = \frac{1}{2}(10 + Side_2) * 18

Multiply both sides by 2

2 * 243 = 2 * \frac{1}{2}(10 + Side_2) * 18

486 = (10 + Side_2) * 18

Divide both sides by 18

27 = 10 + Side_2

Side_2 = 27 - 10

Side_2 = 17\ cm

Hence;

<em>The length of the second parallel side is 17cm</em>

8 0
3 years ago
Liza spent 1 hour preparing the soil and 2/3 hour planting. How much time did she spend in the garden?​
masha68 [24]

She spent 1 hour preparing the soil and 2/3 of and hour planting.

Hence, she spent:

1+2/3=

<h2><u><em>1 2/3 of an hour in the garden</em></u></h2>

(which is also 100 minutes)

-Hunter

4 0
2 years ago
Solve this know or else no hamburger for you NOmNOmNoM
stealth61 [152]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
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How do I solve 8n= -3m + 1 ; n= -2, 2, 4
Dennis_Churaev [7]
8n = -3m + 1
n = -2, 2,4
first add -2, 2 and 4 which = 4 
then do 8(4) = -3m +1 which makes 24 = -3m +1 so subtract 1 on both sides then you have 23 = -3m divde -3 on both sides which equal -7.66 or 8 
6 0
3 years ago
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Which characteristic is related to kenitic energy but not potential energy? A) An objects height B) An objects speed C) An objec
weqwewe [10]

Answer:

b. an objects speed

Step-by-step explanation:

because the kinetic energy is energy that is produce by movement but potential is not produce by movement

4 0
3 years ago
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