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Naily [24]
1 year ago
7

9 A rectangle and a square have the same area. The length

Mathematics
1 answer:
alexira [117]1 year ago
7 0

Answer:

Step-by-step explanation: If the square is 30 ft on one side the other side must be too. So 30x30 = 900. Now, we know the rectangle must also be 900 in area. So, the width must be 10feet and the length must be 90ft because 10x90 is also 900. How I got the length? I did 10x2+70.

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8. In AABC, LA is a right angle and mzB = 45°. Find BC.
Margaret [11]

Answer:

BC = 11\sqrt{2}

Step-by-step explanation:

using the sine ratio in the right triangle and the exact value

sin45° = \frac{1}{\sqrt{2} } , then

sin 45° = \frac{opposite}{hypotenuse} = \frac{AC}{BC} = \frac{11}{BC} = \frac{1}{\sqrt{2} } ( cross- multiply )

BC = 11\sqrt{2}

7 0
2 years ago
A teacher has a bag of candy. If she gives every student in her class 4 pieces of candy, she is left with 48 pieces of candy. Ho
yawa3891 [41]
Well you can't actually find a number, but you can make an equation.
lets call the bag of candy x, and the number of students in the teachers class S.

she gives every student in her class 4 pieces, so to find that amount, we have to multiply the number of students in her class by 4, the pieces of candy. 4S

afterwards she has 48 pieces, which is the endpoint, x is the starting point because that's the amount of candy the teacher started with.

so your equation is x-4S=48, but the thing is, the question is looking for the amount of students she gave candy to, so we have to isolate S, or in easier words; put S on one side, and the numbers on the other.

so the equation is S=1/4x-12

6 0
3 years ago
Pls help me with this i will give brainlyest to whoever answers first
Ksivusya [100]

Answer:

Senate

Step-by-step explanation:

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6 0
3 years ago
What is the difference between 89 and 21
Evgen [1.6K]
Here is the answer as shown in the picture: 

5 0
3 years ago
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36. Factorize x-12x + 20​
m_a_m_a [10]

Answer:

{ \tt{ {x} - 12x + 20}} \\{ \tt{ =-11x + 20 }}

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3 years ago
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