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qwelly [4]
3 years ago
9

A shelf's width is 1 1/8 feet. Its length is 3 1/9 times the width. How many feet long is the shelf?

Mathematics
1 answer:
tatuchka [14]3 years ago
5 0

Answer:

3 1/2ft

Step-by-step explanation:

width of the shelf = 1 1/8 = 9/8

length of the shelf = 3 1/9 of the width = 28/8 of the width

length of the shelf = 28/9 x 9/8 = 28/8 = 7/2 = 3 1/2ft

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If cos 0=2/3, what are the values of sin 0 and tan 0?
morpeh [17]

Answer:

Below

Step-by-step explanation:

● cos O = 2/3

We khow that:

● cos^2(O) + sin^2(O) =1

So : sin^2 (O)= 1-cos^2(O)

● sin^2(O) = 1 -(2/3)^2 = 1-4/9 = 9/9-4/9 = 5/9

● sin O = √(5)/3 or sin O = -√(5)/3

So we deduce that tan O will have two values since we don't khow the size of O.

■■■■■■■■■■■■■■■■■■■■■■■■■

●Tan (O) = sin(O)/cos(O)

● tan (O) = (√(5)/3)÷(2/3) or tan(O) = (-√(5)/3)÷(2/3)

● tan (O) = √(5)/2 or tan(O) = -√(5)/2

4 0
3 years ago
Is this ordered pair a solution to the inequality?<br> (1, 3)<br> 5x+y&lt;-3<br> A.)No<br> B.)Yes
max2010maxim [7]
(1,3) means that x = 1 and y = 3. Let's make substitutions to see what happens with the inequality

5*x + y < -3
5*1 + y < -3 ... replace x with 1
5*1 + 3 < -3 ... replace y with 3
5 + 3 < -3
8 < -3

This is false. The number 8 is NOT smaller than -3. 

So (1,3) is NOT a solution

Answer: Choice A) No
3 0
3 years ago
A leap year happens every 4 years.There are 29 days in the month of February in a Leap year.A mathematician was born on 29th of
Veseljchak [2.6K]

79years

Step-by-step explanation:

birth year minus the dearth yeah

3 0
3 years ago
Q4 Q20.) Give the equation of the exponential function whose graph is shown.
Elodia [21]
Hi again!


I used an online calculator to help me graph each of the functions.

The correct answer is option D

Let me know if you have any questions about the answer!


3 0
3 years ago
Abbey purchased a poster that had a height of 2 feet and a width of 0.7 foot.What is the area of Abbey's poster?
Oksana_A [137]

Answer:

1.4 ft²

Step-by-step explanation:

Area = L x W

Area = 2 x 0.7

Area = 1.4 ft²

6 0
3 years ago
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