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Papessa [141]
3 years ago
9

Please Help me with these questions ASAP!

Mathematics
1 answer:
Kryger [21]3 years ago
4 0

Answer:

What grqde is this

Step-by-step explanation:

please I need to know the grade

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Find the circumference and area of each. Round to nearest tenth:
patriot [66]

№1. Given: r=8 ft, π≈3.14

C=2×π×r=2×3.14×8=50.24=50.2 ft

A=π×r²=3.14×64=200.96=201 ft²

Answer: 50.2 ft; 201 ft²

№2. Given: D=11 cm, π≈3.14

d=2r or r=2/d, so if d is 11 cm, then r is 11÷2=5.5 cm

C=2×π×r=πD=3.14×11=34.54=34.5 cm

A=π×r²=3.14×(5.5)²=94.985=95 cm²

Answer: 34.5 cm; 95 cm²

8 0
3 years ago
Help pleaseee it’s a quiz<br> 35 points
nekit [7.7K]

Answer:

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Step-by-step explanation:

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3 years ago
7x - 22 = 41<br> Im having trouble with this problem
Charra [1.4K]

Answer:

x = 9

Step-by-step explanation:

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6 0
3 years ago
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9x-2y=11 <br> 5x-2y=15 <br> what is the solution to the above system of equations<br> ASAP
natali 33 [55]

9x - 2y = 11 ... (i)

5x - 2y = 15 ... (ii)

Subtracting equation (ii) from (i) we get;

4x + 0 = -4

4x=-4 , x = -1

Replacing x = -1 in equation (i) we get;

9(-1) - 2y = 11

-9 - 2y = 11

-2y = 20

y = 20 ÷ -2 = -10

The solution to the system of equations is (-1,-10).

8 0
3 years ago
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A company that manufactures radios first pays a start-up cost, and then spends a certain amount of money to manufacture each rad
Tresset [83]

Answer:

5.25 represents the cost of each radio

Step-by-step explanation:

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