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Ilia_Sergeevich [38]
2 years ago
7

Sarah received scores of 85, 92 and 78 on her first three exams of the grading period. What is the lowest score Sarah can earn o

n the next exam for the exam average to be at least a 87 for the grading period.
Mathematics
1 answer:
Gnoma [55]2 years ago
3 0
The lowest score could be 87
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A circle has a radius of 6 cm.
Lapatulllka [165]

Answer:

1.5\pi cm

Step-by-step explanation:

A central angle measuring 45^\circ is \frac{45^\circ}{360^\circ}=\frac{45}{360}, or \frac{1}{8} of the entire circle. The circumference of the circle is given by the formula 2\pi r, which is 12\pi.

Then, the length of an arc measuring \frac{1}{8} of the entire circle is 12\pi\cdot\frac{1}{8}=1.5\pi cm.

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2 years ago
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12 years ago, Juan was 2/3 the age he is now. Write and solve an equation to figure out how old he is now.
astra-53 [7]
12 x 2/3= a. a being his current age. hope this is correct!
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3 years ago
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What is the value of s?<br><br> _____units
shutvik [7]

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17

Step-by-step explanation:

by Pythagoras

8 {}^{2}  + 15 {}^{2}  =  {x}^{2}

x=17

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3 years ago
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What is the equation of a line that is perpendicular to -x + 2y =4 and passes through the point (-2, 1)
Trava [24]

Answer:

y = -2x - 3

Step-by-step explanation:

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put it all together: y = -2x - 3

8 0
3 years ago
Dad is 4 times as old as his son Jim. In 10 years, Dad's age will be 20 years more than twice Jim's age. How old is Jim?
Jobisdone [24]

Answer:

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Since dad is 4 times as old as Jim that means 5 x 4=20 and in ten years Jim will be 15 and Dad will be 30 and 15 x 2 is 30.

Hope this helps!

3 0
3 years ago
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