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baherus [9]
3 years ago
12

Rajesh is working out the area of a circle with radius 10 he writes

Mathematics
1 answer:
Maru [420]3 years ago
7 0

Answer:

He multiplied the radius by 2 instead of squaring it

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What is the completely factored form of x4 8x2 – 9?
Alinara [238K]

For this case we have the following polynomial:

x ^ 4 + 8x ^ 2 - 9

We make the following change of variables:

u = x ^ 2

Rewriting we have

u ^ 2 + 8u - 9

Factoring the second order polynomial we have:

(u + 9) (u-1)

Then, returning the change we have:

(x ^ 2 + 9) (x ^ 2-1)

Finally, we factor the expression in the parentheses of the second term:

(x ^ 2 + 9) (x + 1) (x-1)

Answer:

the completely factored form is:

(x ^ 2 + 9) (x + 1) (x-1)

7 0
3 years ago
Read 2 more answers
A doctor orders a dosage of 5 ml of medicine every 4 hours for 8 days. How many fluid ounces of medicine should be​ purchased?
MAXImum [283]
24 ÷ 4 = 6
6 × 8 = 48 
5 × 48 = 240 
240 × 0.033814 = 8.11536
8.11536 fluid ounces should be purchased.
5 0
3 years ago
8pq + 20qr – 16s factorise plz
Dafna1 [17]

Answer:

4(2qp + 5qr - 4s)

Step-by-step explanation:

8pq + 20qr – 16s

we can use 4 as a common factor between these numbers.

8/4 = 2

20/4 = 5

16/4 = 4

so

4(2qp + 5qr - 4s) is the most factorized answer we can get

8 0
3 years ago
What do we call any ray, segment, or line that intersects an angle at its vertex and divides the angle into two equal parts?
Elis [28]
The correct answer would be angle bisector
8 0
3 years ago
This got travis wondering how he could remed similar mistakes if he were to dump in a single cup of some of the other ingredient
nataly862011 [7]

Answer:

See below.

Step-by-step explanation:

Assuming the ratio 6:1 is blueberries to sugar then this means 6 cups of blueberries is used for each cup of sugar.

A. If one cup of blueberries is used then 1/6 cup of sugar should be used.

B. No information is given here about butter.

C. If one cup of sugar is used the 6 cups of blueberries are needed.

3 0
3 years ago
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