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natali 33 [55]
3 years ago
8

Dana is attaching a shelf to a wall and needs the shelf to be perpendicular to the wall. How many degrees should the shelf be re

lative to the wall?
Mathematics
2 answers:
KiRa [710]3 years ago
8 0
90° because perpendicular lines are never ending.
wolverine [178]3 years ago
4 0

Answer:

90°

Step-by-step explanation:

The shelf will be perpendicular to the wall if it intersects the wall at a right angle which is equal to 90°

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You can walk 3 miles per hour, jog 5 miles per hour, or run 10 miles per hour. You go a full hour before changing pace. At the e
Studentka2010 [4]

Answer:

b. How many ways arc there to go 12 miles?

≡ p(12) = 25

c. How many ways arc there to go 20 miles?

≡ p(20) = 131

d. How many ways arc there to go 22 miles?

≡p(22)  199

Step-by-step explanation:

a) supposed you walked for the first hour. Then you would have travelled 3 miles. if you jogged you would have covered 5miles and if you run you would have covered 10miles. now you have to decide how to run the rest miles from the n miles.

Thus, the number of ways one can cover n miles will be given by the recurrence relation

p(n) = p( n-3) + p( n-5) + p( n - 10)

now to solve the rest of the question, let us make a table which provides the number of ways for n = 1  to 22.

check the attachment for the table

b. How many ways arc there to go 12 miles?

≡ p(12) = 25

c. How many ways arc there to go 20 miles?

≡ p(20) = 131

d. How many ways arc there to go 22 miles?

≡p(22)  199

8 0
2 years ago
What’s the degree of
Leno4ka [110]
The degree would be 3
7 0
3 years ago
2 numbers are such that if 7 is added to the first number, a number twice the second number is obtained. If 20 is added to the s
Eduardwww [97]

Answer:

1st= 47/7 or 6.71

2nd= 48/7 or 6.857

Step-by-step explanation:

1st number =X and 2nd number = Y

According to question, X+7=2Y

20+Y=4X

X=2Y-7 (from 1st condition)

putting in it second

20+Y=4(2Y-7)

20+Y=8Y-28

20+28=8Y-Y

48=7Y

Y=48/7

so X=2(48/7)-7

=96-49/7

47/7

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3 years ago
One yard of the fabric costs $5. How much does she pay for all 5 pieces of fabric
solmaris [256]
Assuming a "piece of fabric" is a yard, 5x5 is $25.00.
6 0
3 years ago
Read 2 more answers
How do i solve this?
vodka [1.7K]

Step-by-step explanation:

all I see is a piece of paper

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3 years ago
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