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WINSTONCH [101]
3 years ago
15

Help please asap :))

Mathematics
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

6.28

Step-by-step explanation:

You need to find the circumference,

so 2*3.14*R

the radius is 4 so

2*3.14*4

25.12

now you have found the length of the full circle, you need to find a quater like because there is 4 90 degres in a circle

so divide you answer by 4

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A polynomial function with rational coefficients has the following zeros. Find all additional zeros.
leonid [27]
1 + 3i, - sqrt 10 would be the other two answers
7 0
3 years ago
When would the product of the denominators and the least common denominator of the denominators be the same?
Bas_tet [7]

Answer:

Example 1:

Find the common denominator of the fractions.

16 and 38

We need to find the least common multiple of 6 and 8 . One way to do this is to list the multiples:

6,12,18,24−−,30,36,42,48,...8,16,24−−,32,40,48,...

The first number that occurs in both lists is 24 , so 24 is the LCM. So we use this as our common denominator.

Listing multiples is impractical for large numbers. Another way to find the LCM of two numbers is to divide their product by their greatest common factor ( GCF ).

Example 2:

Find the common denominator of the fractions.

512 and 215

The greatest common factor of 12 and 15 is 3 .

So, to find the least common multiple, divide the product by 3 .

12⋅153=3 ⋅ 4 ⋅ 153=60

If you can find a least common denominator, then you can rewrite the problem using equivalent fractions that have like denominators, so they are easy to add or subtract.

Example 3:

Add.

512+215

In the previous example, we found that the least common denominator was 60 .

Write each fraction as an equivalent fraction with the denominator 60 . To do this, we multiply both the numerator and denominator of the first fraction by 5 , and the numerator and denominator of the second fraction by 4 . (This is the same as multiplying by 1=55=44 , so it doesn't change the value.)

512=512⋅55=2560215=215⋅44=860

512+215=2560+860                 =3360

Note that this method may not always give the result in lowest terms. In this case, we have to simplify.

=1130

The same idea can be used when there are variables in the fractions—that is, to add or subtract rational expressions .

Example 4:

Subtract.

12a−13b

The two expressions 2a and 3b have no common factors, so their least common multiple is simply their product: 2a⋅3b=6ab .

Rewrite the two fractions with 6ab in the denominator.

12a⋅3b3b=3b6ab13b⋅2a2a=2a6ab

Subtract.

12a−13b=3b6ab−2a6ab                   =3b − 2a6ab

Example 5:

Subtract.

x16−38x

16 and 8x have a common factor of 8 . So, to find the least common multiple, divide the product by 8 .

16⋅8x8=16x

The LCM is 16x . So, multiply the first expression by 1 in the form xx , and multiply the second expression by 1 in the form 22 .

x16⋅xx=x216x38x⋅22=616x

Subtract.

x16−38x=x216x−616x                  =x2 − 616x\

4 0
2 years ago
What triangle is formed by the points (3,2 ) , 4, 7 and 5,6 ?
Verizon [17]

Answer:

Isosceles

Step-by-step explanation:

I'm not 100% sure but i believe its an isosceles.

6 0
3 years ago
Read 2 more answers
Factorize the following<br> 4x+16y+24z
FrozenT [24]
  • 4x + 16y + 24z
  • = 4(x + 4y + 6z)

<u>Answer</u><u>:</u>

<u>4</u><u>(</u><u>x </u><u>+</u><u> </u><u>4</u><u>y</u><u> </u><u>+</u><u> </u><u>6</u><u>z</u><u>)</u>

Hope you could understand.

If you have any query, feel free to ask

6 0
2 years ago
Plz find the volume of this figure i really need help​
DiKsa [7]

Answer:

to find volume you have to multiply l x w x h

Step-by-step explanation:

just put the l, w, and height in the comment section so i can give you the answer

3 0
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