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3 years ago

What is the GCF of 28 and 42?

2 answers:

7 0

The best thing to do here is simply to list all of the actors for each number and this will let you see the GCF, 28- 1,2,4,7,14,28 42- 1,2,3,6,7,14, 21, 42 Therefore, you're correct and 14 is the GCF Hope this helps :)

Svetlanka [38]3 years ago

5 0

You are correct the Greatest Common Factor of 28 an 24 is 14.

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Solve question 13. And 14. Please!! Will reward brainliest!!

SIZIF [17.4K]

Answer:

y = 4 sin( 0.5t - $\frac{4\pi }{3}$ ) - 2

y = a sin ( 2t - $\frac{-\pi }{3}$ ) + 2

Step-by-step explanation:

In the first question,

amplitude = 4

Period = $4\pi$

phase shift = $\frac{-4\pi }{3}$

Vertical shift = -2

Angular velocity , w = $\frac{2\pi }{time period}$

Here, w = $\frac{2\pi }{4\pi }$ = 0.5

The general equation of a wave is

y = a sin( wt + ∅ )

Putting above values in the equation,

y = 4 sin( 0.5t - $\frac{4\pi }{3}$ ) - 2

In the second question,

Amplitude is not given so we will take it as a.

time period = $\pi$

w = 2

Phase shift = $\frac{-\pi }{3}$

Vertical shift = 2

The equation is

y = a sin ( 2t - $\frac{-\pi }{3}$ ) + 2

5 0

3 years ago

Andrew wants to lay new turf in his garage.Andrews garden is a rectangle measuring 3m by 4m,New turf cost 12.50pr m2.

Mrac [35]

Answer:

$150

Step-by-step explanation:

The area of the lawn is 12m so 12 x 12.50 is 150. It would cost $150

7 0

2 years ago

Tems11 [23]

Answer:

one board game cost 15 dollars

75/5=15

15y

y = number of board games and 15= the price of each board game

so to calculate any number of board games bought just input the number of board games bought for y in the expression 15y and you will get the price.

Step-by-step explanation:

6 0

2 years ago

What does 9/5 + 14/12 equal

fenix001 [56]

Answer:

53/50

Step-by-step explanation:

9/15 + 14/12

Simplify.

9/15 + 7/6

Make denominators equal.

54/90 + 105/90

Add fractions since denominators are equal.

159/90

Simplify.

= 53/50

7 0

3 years ago

Express 10500 in terms of its prime factors

8_murik_8 [283]

Step-by-step explanation:

$10500 = 3 \times 5 \times 5 \times 5 \times 7 \times 2 \times 2 \\ \\ 10500 = 2 \times 2 \times 3 \times 5 \times 5 \times 5 \times 7 \\ 10500 = {2}^{2} \times 3 \times {5}^{3} \times 7$

7 0

3 years ago