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kolbaska11 [484]

3 years ago

9

Suppose the professor decides to grade on a curve. If the professor wants 2.5% of the students to get an A, what is the minimum

score for an A?

1 answer:

Fed [463]3 years ago

8 0

It depends on how well the rest of the class does. A safe bet is usually a 93 for an A.

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The product of two consecutive integers is 56.find the the integers.

defon

Let, the integers = x,(x+1)

x*(x+1) = 56

x²+x = 56

x²+x-56 = 0

x²+8x-7x-56=0

x(x+8)-7(x+8)=0

x+8= 0 OR x-7=0

x = -8 OR x = 7

it would be -8 & -7 or 7 & 8

4 0

3 years ago

The diameter of the circle is 9.7 m . Calculate the length of its circumference. Round to the nearest tenth and remember to use

RSB [31]

Answer:

30.4m

Step-by-step explanation:

Diameter(D) = 2r (radius)

D = 9.7m

r = 9.7m / 2

= 4.85m

C = 2πr

= 2π × 4.85m

= 30.47344873982099m

rounding - Leave it as is if the digit in the tenth is 4 or lower

- round it up if it's 5 or higher.

~~ 30.4m

5 0

2 years ago

How did Katherine Johnson’s work in math affect us today?

Kamila [148]

Answer:

she made electronic calculating machines in order to calibrate rockets and make everything more precise

Step-by-step explanation:

7 0

3 years ago

5 | 9 - 5n|-7 = 38<br> I need helppp.

DerKrebs [107]

Answer:

I got 0 or 18/5

Step-by-step explanation:

8 0

3 years ago

PLEASE HELP ME what is the solution to the system of equations?

masha68 [24]

Times the bottom equation by -4 to cancel out the x’s.
Add the equations.
Solve for y.
Plug in y to find x.

8 0

3 years ago