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Ilia_Sergeevich [38]
1 year 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]1 year ago
3 0
The lowest score could be 87
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7 to the -4 power x 7 to the 4 power
UNO [17]

Answer:

The answer is 1

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2 years ago
Here's a graph of a linear function. Write the
sweet-ann [11.9K]

Answer:   y = \frac{1}{3}x - 3  

Step-by-step explanation:

We could find two points on graph to find the slope of the graph since we already know its y-intercept.The y-intercept is when x is 0.

We could find the points (0,-3)   and  another points ( 3,-2) to solve for the slope we will find the difference in y and divide it by the difference in the x values.

(0,-3)

(3,-2)    

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so now we know the slope is 1 thirds or 1 over 3 and the y intercept is -3

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3 years ago
Có ai biết làm toán cao cấp 2 phần đại học ko , help me:((
Viefleur [7K]

Answer: Sorry i only speak english

Step-by-step explanation:

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3 years ago
1. From a circular sheet of radius 18 cm, two circles of radii 4.5 cm and a rectangle of length 4 cm and breadth 1 cm are remove
telo118 [61]

Area of a circle = PI x r^2

Area of sheet = 22/7 x 18^2 = 1,018.29 square cm.

Area of small circle = 22/7 x 4.5^2 = 63.64 square cm.

There are 2 small circles so total area of the circles are 63.64 x 2 = 127.28 square cm.

Area of rectangle = l x w = 4 x 1 = 4 square cm.

Total area of cutouts = 127.28 + 4 = 131.28 square cm.

Area of sheet left, subtract area of cutouts fro area of sheet:

1018.29 - 131.28 = 887.01 square cm.

Round everything as needed.

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3 years ago
50% of what number is 140
BlackZzzverrR [31]

Answer:35.71

Step-by-step explanation:

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3 years ago
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