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wlad13 [49]
3 years ago
15

One book has 84 pages. Another book has 210 pages. Which is the greatest common factor of the number of pages in the two books?

CLEAR SUBMIT 14 21 42 84
Mathematics
1 answer:
Usimov [2.4K]3 years ago
5 0

42

42x2 is 84 and 42x5 is 210

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Evaluate A^2 - B^2 for A = 3 and B=-4.
damaskus [11]

Answer:

-7

Step-by-step explanation:

A = 3

3×3 = 9

B= -4

-4 × -4 = 16

9 - 16 = -7

4 0
3 years ago
a store advertises that customers can take 25% off the original price and ten take an extra 10% off. is this the same as a 35% o
maksim [4K]

Answer:

No, they are not the same.

Step-by-step explanation:

Lets say the price is 100 dollars. Lets start with the 25 and then 10 percent off. Since its 25% off we need to multiple the 100 dollar price by .75.

100*.75=75

Now that we have the 75 dollar price, we need to take off the 10%. We need to multiply the current price of 75 by .9

75*.9=67.5

The price after these 2 discounts is $67.50

Now lets do the 35% off right away. Since is 35% off we need to multiple our right of 100 by .65.

100*.65=65

The price after the 35% off is $65

So no, they are not the same.

7 0
3 years ago
Solve each triangle – find any missing side and angle measures. Round answers to the nearest tenth.
olga nikolaevna [1]

Answer:

A = 55 degrees

B = 35 degrees

C = 90 degrees

side BA = 4.8 units

side AC = 2.7 units

side BC = 3.9 units

Step-by-step explanation:

Hello!

The things we know:

A = 55 degrees

C = 90 degrees

side BA = 4.8 units

AC = adjacent side

BC = opposite side

AB = hypothenuse

B = 180 - 55 - 90 degrees

B = 35 degrees

Let's find side AC

we can use the cos of theta.

cos(55) = AC/4.8

multiply 4.8 on both sides.

4.8cos(55) = AC

AC = 2.7 units

And now we just have to find BC

to calculate BC we can either use tangent or sin.

I will just use sin

sin(55) = BC/4.8

multiply 4.8 on both sides.

4.8sin(55) = BC

BC = 3.9

And now we know everything about the triangle

Hope I Helped!

8 0
2 years ago
multiply me by four then subtract 13 if you divide me by three and add 17 you get 10 what number am I
siniylev [52]
I think ur answer will be -37.35
9 0
3 years ago
Find the constant of proportionality for the table of values:
9966 [12]

Answer:

3.5 =k

Step-by-step explanation:

If the table is proportional, the equation is

y = kx

To find k

y/x =k

14/4 = k

7/2=k

3.5 =k

3 0
4 years ago
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