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attashe74 [19]
2 years ago
15

Please help on a test!!!

Mathematics
1 answer:
Mrrafil [7]2 years ago
3 0

Answer:(7, 8)

Step-by-step explanation:

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13 + x + 8
= x + 21
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3 years ago
10 points Four cookies cost $14. At this rate. how much will 10 cookies cost?​
spayn [35]

Answer:$35

Step-by-step explanation:well each cookie cost $3.50 so for $14 there are only 4 cookies so for ten it will cost $35 cause 14+14=28 and you need to 2 more cookies so you will add 2 more which is $7 and $7+$28=$35.Hope I’m right

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One way to measure self-discipline is the $1-now or $2-later test (which the researchers call the Delay Choice Task) in which we
denis23 [38]

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A. This study is an experiment, since it was based on a random sample.

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3 years ago
angle, a and angle, b are complementary angles. angle a measures 22, degrees. What is the measure of angle b?
Natali [406]

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7 0
3 years ago
A rectangle has a length of twenty one cm and a diagonal of twenty nine cm. How wide is the rectangle?
GuDViN [60]

The width of the rectangle become 20 cm.

According to the statement

we have to find the width of the rectangle.

So, For this purpose, we know that the

Rectangle is a parallelogram all of whose angles are right angles.

According to the information:

A rectangle has a length of 21 cm and a diagonal of 29 cm.

Here we use the this formula

d² = l² + w²

So, Substitute the values

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Now, solve it then

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The width of the rectangle become 20 cm.

So, The width of the rectangle become 20 cm.

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1 year ago
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