All categories

3 years ago

Highest common factor of 72 and 28

Mathematics

2 answers:

densk [106]3 years ago

7 0

The highest common factor is 4.

yawa3891 [41]3 years ago

7 0

Answer: 4

<em><u>NOTE: ONLY REFER FIRST METHOD IF YOU ARE FROM CLASSES BELOW 5TH GRADE AND IF YOU KNOW THEM BOTH ITS OK.</u></em>

First we list factors of both 28 & 78

28: 1,2,4,7,14,28

78: 1,2,3,4,6,8,9,12,18,24,36,72

Now the common factors are, 1,2,4

And we know that 1<2<4

And thus 4 is the highest common factor

Another way is prime factorisation:

In this method, we need to find the prime factors of both the given numbers and find out the common factors and mutiply them.

So, 28: 2*2*7 and 72: 2*2*2*3*3

In now we see that, 2*2 is common in both common prime factors of both 28&72, Thus we get 2*2, And after solving it we get the highest common factor as 4

You might be interested in

I need help! I'm *so* confused! I will mark Brainliest

Naddik [55]

Answer:

(-2,21)

Step-by-step explanation:

2 days ago, Paulo's commute time was halfway between his commute times 8 and 9 days ago.

8 days ago means that x-coordinate -8 represents this day. Count 8 units to the left and find that when x = -8, y = 24 minutes.

9 days ago means that x-coordinate -9 represents this day. Count 9 units to the left and find that when x = -9, y = 18 minutes.

Find halfway commute time between points (-8,24) and (-9,18):

$y=\dfrac{24+18}{2}=\dfrac{42}{2}=21,$

then coordinates that Paulo should graph are

(-2, 21)

(-2 means 2 days ago, 21 is the halfway)

5 0

3 years ago

Type the correct answer in each box.

Mariulka [41]

Answer:

$(x-5)^2+(y+4)^2=100$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The distance between the center and any point that lie on the circle is equal to the radius

we have the points

(5,-4) and (-3,2)

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$r=\sqrt{(2+4)^{2}+(-3-5)^{2}}$

$r=\sqrt{(6)^{2}+(-8)^{2}}$

$r=\sqrt{100}\ units$

$r=10\ units$

step 2

Find the equation of the circle

we know that

The equation of a circle in standard form is equal to

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center

r is the radius

we have

$(h,k)=(5,-4)\\r=10\ units$

substitute

$(x-5)^2+(y+4)^2=10^2$

$(x-5)^2+(y+4)^2=100$

6 0

3 years ago

What percentage of videos on the streaming site are between 39 and 189 seconds?

PolarNik [594]

Answer:

B) 15.85%

Step-by-step explanation:

normalcdf(minimum,maximum,μ,σ)

normalcdf(39,189,264,75)

≈0.1573

≈15.73%

Therefore, the closest answer is B

4 0

2 years ago

Cesar danced for 16 minutes on Saturday. On Sunday he danced for 28 minutes more than he did on Saturday. How long has he danced

KIM [24]

Answer:

60 minutes

Step-by-step explanation:

Saturday = 16 minutes

Sunday = 28 minutes + 16 minutes = 44 minutes

Saturday + Sunday = 44 + 16 = 60 minutes

3 0

1 year ago

What numbers multiply to 0.32 and also add to 1.2

mylen [45]

.08 x .04 is the right answer

6 0

4 years ago