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2 years ago

What is The Greatest Common Factor of 21 and 63?

Mathematics

2 answers:

vova2212 [387]2 years ago

6 0

The Greatest Common Factor or GCF of 21 and 63 is 21.

Ksenya-84 [330]2 years ago

5 0

It should be 7. No bigger number can go into either.

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Jenny opened a package of screws quickly and many of them spilled on the floor. She needs to organize the fasteners according to

hichkok12 [17]

We have to compare diameters and arrange them in order smallest to greatest

We can see units for option A and B are in square inches so they represents area. So first we will find diameter from area using formula

$A = \pi r^{2}$

so for choice (A) area is given as $4.375 \times 10^{7}$ . So plug this in A place in formula and then solve for radius r

$4.375 \times 10^{7} = \pi r^{2}$

$\frac{4.375 \times 10^{7}}{\pi} = \frac{\pi r^{2}}{\pi}$

$1.393 \times 10^{7} } = r^{2}$

$\sqrt{1.393 \times 10^{7}} = \sqrt{r^{2}}$

3731.76 = r

So screw A will have
$diameter = 2 \times r = 2 \times 3731.76 = 7463.52$ inches

Similarly for choice (E) area is $1.428 \times 10^{1} = 14.28$
so again plug in formula

$A = \pi r^{2}$

$14.28 = \pi r^{2}$

$\frac{14.28}{\pi} = \frac{\pi r^{2}}{\pi}$

$4.5477 = r^{2}$

$\sqrt{4.5477} = \sqrt{r^{2}}$

2.13201 = r

So screw E will have
$diameter = 2 \times r = 2 \times 2.13201 = 4.26402$ inches

So diameters of all screws are as follows:

Screw A: 7463.52 inches
Screw B: 1.5 inches
Screw C: $1\frac{7}{8} = \frac{1\times 8+7}{8} = \frac{15}{8} = 1.875$ inches
Screw D: 0.25 inches
Screw E: 4.26402 inches

Comparing all numbers 7463.52, 1.5, 1.875, 0.25, 4.26402 we can see that smallest number is 0.25, then comes 1.5, then 1.875 and then 4.26402 and then 7463.52

So order from least to greatest will be screw D (0.25), B(1.5), C(1.875), E (4.26402), A (7463.52).

So thats the order D,B,C,E,A and the final answer

6 0

3 years ago

Read 2 more answers

What is 2/7 divided by 5/9

miss Akunina [59]

Answer:0.006439

Step-by-step explanation:

4 0

3 years ago

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A basement bedroom must have a window with an opening area of at least 5.7 square feet, per the International Residential Code.

kati45 [8]

5.7 square feet = 0.53 square meters

0.53 / 0.75 = 0.71

the smallest would be a)0.71

6 0

3 years ago

Which of the following inequalities matches the graph?

Irina-Kira [14]

Answer:

I think it is 2x-3y<7, also, I used a free program called Desmos to figure it out, in case you also want to.

Step-by-step explanation:

6 0

2 years ago

Please help i am stuck on this for more than a day

Mila [183]

252 seeds

Since there is 42 seeds in each of the 12 bags you need to multiply 42 and 12

42 × 12 = 504

So in total she has 504 seeds, now you need to split that in half by dividing 504 and 2

504 ÷ 2 = 252

Therefore she has 252 seeds left

Hope this helps! :)

6 0

2 years ago

What is The Greatest Common Factor of 21 and 63?​

What is The Greatest Common Factor of 21 and 63?