Answer: x=5.75
Step-by-step explanation:
4x+5=28
subtract 5 from both sides
4x=23
divide both sides by 4
x=5.75
Answer:
12.56 square units
Step-by-step explanation:
The formula for circumference is
C = 2πr
Our circumference is 12.56. Using 3.14 for π, we have
12.56 = 2(3.14)r
12.56 = 6.28r
Divide both sides by 6.28:
12.56/6.28 = 6.28r/6.28
2 = r
The area of a circle is given by the formula
A = πr²
Using 3.14 for π and our radius of 2, we have
A = 3.14(2²) = 3.14(4) = 12.56.
The answer is: " 2/15 " .
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Explanation:
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(2/5) * (1/3) = what fraction?
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(2/5) * (1/3) = (2*1) / (5*3) = 2/15 .
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The answer is: " 2/15 " .
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Answer:
Yes
Step-by-step explanation:
If (4,11) is part of the system, it should satisfy both equations
y = 4x - 5
11 = 4(4) - 5
11 = 16 - 5
11 = 11 is a true statement
y = 2x + 3
11 = 2(4) + 3
11 = 8 + 3
11 = 11 is a true statement
Since (4,11) satisfies both the equations, it is part of the system
Answer:
726 cm²
Step-by-step explanation:
The cube has 6 square faces , then
surface area = 6 × area of 1 square face
SA = 6 × 11² = 6 × 121 = 726 cm²
