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Trava [24]
3 years ago
14

Solve for X ??? A. 2 / 15 B. 20 C. 30 D. / 35

Mathematics
1 answer:
Finger [1]3 years ago
6 0

Answer:

2 sqrt(15)

Step-by-step explanation:

Using the secant tangent formula

(whole secant) x (external part) = (tangent)^2

(5+7) * 5 = x^2

12*5 = x^2

60 = x^2

Taking the square root

sqrt(60) = sqrt(x^2)

sqrt(4*15) = x

2 sqrt(15) =x

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3x4=12 but what are 3 and 4 and what is 12 ?
masha68 [24]
It's pretty simple to understand basically like the addition one 3 and 4 would be considered factors and in multiplication instead of saying sum you say product So that means 12 is the product. Hope this helped - Ashlynn
3 0
4 years ago
Read 2 more answers
I need help with eight and nine you are to multiply the binominaals using the horizontal format
lorasvet [3.4K]

Answer:

8. 15m^2-31m+10\\

9. x^2y^2z^2+2xyz-3

Step-by-step explanation:

(a+b)(c+d)=ac+ad+bc+bd\\(3m-5)(5m-2)=3m*5m+3m(-2)-5*5m(-2)\\=3m*5m+3m(-2)-5*5m(-2)\\=15m^2-31m+10

^#8^

(xyz+3)(xyz-1)=xyzxyz+xyz(-1)+3xyz+3(-1)\\=xyzxyz+xyz(-1)+3xyz+3(-1)\\=x^2y^2z^2+2xyz-3

^#9^

4 0
2 years ago
Simplify the given expression.<br> 5+(6-5)+5^2
ki77a [65]

Answer:

31

Step-by-step explanation:

5+(6-5)+5^2

use PEMDAS,

Parentheses

Exponents

Multiply

Divide

Addition

Subtraction

meaning-

5+(6-5)+5^2

5 + 1 + 5^2

5 + 1 + 25

31

 

6 0
3 years ago
Read 2 more answers
How do I find the answer​
Talja [164]
When you divide exponents, you just subtract them. the answer to this equation is a^2 (a squared). This is because 8-6 = 2. Conversely, if you were multiplying two terms with exponents you would add the exponents together. For example: a^3 * a^2 = a^5, because 3 + 2 = 5
5 0
3 years ago
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Find the absolute mean deviation of this data set:<br> 8, 8, 4, 12
nasty-shy [4]

Answer:

2 is the absolute mean deviation

Step-by-step explanation:

absolute mean deviation is

the average of the differences of the data from the average

8, 8, 4, 12

1. take the average

8+8+4+12=32 -> 32/4 = 8

2. subtract each number from this average

8 - 8 = 0

8 - 8 = 0

4 - 8 = 4 (there are no negative answers)

12 - 8 = 4

3. take the average of these subtractions

0+0+4+4=8 -> 8/4 = 2

4. answer: 2 is the absolute mean deviation

8 0
2 years ago
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