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2 years ago

What is the greatest common factor (GCF) of 54 and 45?

Mathematics

2 answers:

ira [324]2 years ago

8 0

9 cause that how I learned it

lawyer [7]2 years ago

6 0

Answer:

Step-by-step explanation:

BECAUSE 54 : 2,3,9. and 45 : 5,9. so the greatest common factor is 9

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a regular polygon has a perimeter of 36 inches. each side is exactly 6 inches long. which figure does this discribe?

fgiga [73]

Since a side is only 6 inches long and the total perimeter is 36; take 36/6 and you get 6. The only figure with six sides is a hexagon, thus your answer is hexagon.

3 0

2 years ago

2 2/3 * 3/4 answer that

Nataly_w [17]

answer = 2

You can just use a calculator unless you need to show your work

5 0

2 years ago

A family wants to save for college tuition for their daughter. What continuous yearly interest rate r% is needed in their saving

sergey [27]

Answer:

The continuous yearly interest is 22.5% per year.

Step-by-step explanation:

Continuous yearly interest:

Continuous yearly interest is defined as the sum of the interest comes from principle and the interest comes from interest.

The formula for continuous interest yearly is

$A=Pe^{rt}$

where A = The final amount =$110,000

P= principle =$4,700

r= rate of interest

t= time (in year)= 14 years

$\therefore 110,000= 4,700e^{r\times 14}$

$\Rightarrow e^{14r}= \frac{110,000}{4,700}$

Taking ln both sides

$\Rightarrow ln e^{14r}= ln(\frac{110,000}{4,700})$

$\Rightarrow {14r}= ln(\frac{1100}{47})$

$\Rightarrow r=\frac{ln( \frac{1100}{47})}{14}$

$\Rightarrow r = 0.225$ (approx)

The continuous yearly interest is 0.225 = 22.5% per year.

4 0

2 years ago

Solve 4(x - 3) - 2(x - 1) > 0.

Juliette [100K]

Remark

Remove the brackets. Then solve as a normal inequality.

Solution

4(x - 3) - 2(x - 1) > 0

4x - 12 - 2x + 2 > 0 Combine like terms on the left

4x - 2x - 12 + 2 > 0

2x - 10 > 0 Add 10 to both sides

2x > 10 Divide by 2

x > 10/2

x > 5

Answer: B

Discussion

C and D are both true but these questions always assume that you are going to pick the lowest value that will allow the inequality to be true. x> 7 and x>14 will be included in x>5

4 0

2 years ago

4 friends earned $5.20 for washing a car.they shared the money equally. how much did each friend get

alekssr [168]

$1.30 i could be wrong!

8 0

3 years ago