MATHEMATICS
MIDDLE SCHOOL

Answer:

Answer: Well, there are an infinite amount of answers. It could be 8/14, 12/21,16/28,20/35 etc.

Step-by-step explanation:

Basically, find the GCD of the numerator (top number) and the denominator (bottom number). For example 16/28. The GCD is 4. Therefore, divide both the top and bottom by 4 to obtain 4/7.

You can also multiply the top and bottom number by the same value to arrive at answers equivalent to 4/7.

MIDDLE SCHOOL

You are studying for your final exam of the semester. up to this point, you received 3 exam scores of 67%, 68%, and 78℅. to receive a grade of C in the class, you must have an average exam score between 70% and 79% for all 4 exams including the final.

(67 + 68 + 78 + x) / 4 = 70

(213 + x) / 4 = 70

213 + x = 70 * 4

213 + x = 280

x = 280 - 213

x = 67

(213 + x) / 4 = 79

213 + x = 79 * 4

213 + x = 316

x = 316 - 213

x = 103

lowest u can make is 67, highest u can make is 100

(213 + x) / 4 = 70

213 + x = 70 * 4

213 + x = 280

x = 280 - 213

x = 67

(213 + x) / 4 = 79

213 + x = 79 * 4

213 + x = 316

x = 316 - 213

x = 103

lowest u can make is 67, highest u can make is 100

Answer: its 68,100 on plato

HIGH SCHOOL

The formula for the surface area of a sphere is A = 4*pie*r^2. What is the formula solved for r.

Note: pie=pi=π

divide both sides by 4pi

sqrt both sides

we need to rationalize the denomenator

multiply it by (√π)/(√π)

divide both sides by 4pi

sqrt both sides

we need to rationalize the denomenator

multiply it by (√π)/(√π)

Answer:

He is right

Step-by-step explanation:

HIGH SCHOOL

Evaluate 2a-b for a=2 and b=3

A.1

B.4

C.19

The answer is A.1 .....2(2) is 4.. 4-3 is 1.

COLLEGE

Which ratio correctly compares 8 pounds to 64, ounces when the lengths are written using the same units? Note: 16 ounces = 1 pound A 1 : 2

B 8 : 1

C 1 : 8

D 2 : 1

Answer: C

64 divided by 8 = 8

8 divided by 8= 1

1:8

64 divided by 8 = 8

8 divided by 8= 1

1:8

Answer:

2:1

Step-by-step explanation:

COLLEGE

Describe the vertical asymptotes) and hole(s) for the graph of y=x+2/x^2+8x+15

Answer:

- vertical asymptotes at x ∈ {-3, -5}
- no holes

We assume you intend your equation to be ...

... y = (x +2)/(x² +8x +15) = (x +2)/((x +3)(x +5))

This equation defines y everywhere except at x=-3 and x=-5, where there are vertical asymptotes. Because y is defined everywhere else, there are no holes.

_____

Comment on holes

A "hole" generally occurs when there is a numerator factor that cancels a denominator factor. Though the function has a removable discontinuity at that point, it is undefined where the (canceled) denominator factor is zero.

The answer is asymptotes: x=-5, x=-3 and no holes

MIDDLE SCHOOL

What is the purpose of preparing a trial balance?

Answer:

The purpose of a trial balance is to prove that the value of all the debit value balances equals the total of all the credit value balances. If the total of the debit column does not equal the total value of the credit column then this would show that there is an error in the nominal ledger accounts.

Step-by-step explanation:

Answer: ur question is not that clear

Step-by-step explanation:

MIDDLE SCHOOL

How many numbers are written from n to k, including n and k?

Answer:

k-n

Step-by-step explanation:

Answer:

k-n-1

Step-by-step explanation:

This is what I think based on other formulas

HIGH SCHOOL

Work out the greatest possible value of 3x-2y with the numbers 5,6,7,8,9,10

Answer:

The greatest possible value of 3x - 2y is 20

Step-by-step explanation:

3x - 2y ------- 1

For getting the greatest possible value we must get the greatest value available, which is 10 and put it in place of x .

As 2y is being subtracted in the eq 1, we must put the smallest value available in the eq 1 to get the greatest possible result.

put x = 10 and y = 5 in eq 1

3(10) - 2(5)

= 30 - 10

= 20

Smallest possible value from the eqaution will be obtained by putting y = 10 and x = 5

3 (5) - 2 (10)

= 15 - 20

= -5

HIGH SCHOOL

Which expression converts 100 inches per minute to feel per minute

You only have to convert inches to feet by dividing by 12: 100in/min (1/12 ft/in) = 100/12 ft/min = 25/3 ft/min.