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nata0808 [166]
3 years ago
8

The expression 7kl – 3k(4k + 2l) is equivalent to:​

Mathematics
1 answer:
koban [17]3 years ago
6 0

Answer:

- 12k² + kl

Step-by-step explanation:

Given

7kl - 3k(4k + 2l) ← distribute parenthesis by - 3

= 7kl - 12k² - 6kl ← collect like terms

= - 12k² + kl

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Those things don't really relate to each other.

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The more you drive your car, the more you'll have to pay for gas.

3. Negative correlation

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A student studying for a vocabulary test knows the meanings of 16 words from a list of 26 words. If the test contains 10 words f
gayaneshka [121]
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<span>=[C(16,8)*C(10,2) + C(16,9)*C(10,1) + C(16,10)*C(10,0)] / C(26,10)
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4 0
3 years ago
Please help me!
Alexxandr [17]

A right triangle has one leg with unknown length, the other leg with length of 5 m, and the hypotenuse with length 13 times sqrt 5 m.

We can use the Pythagorean formula to find the other leg of the right triangle.

a²+b²=c²

Where a and b are the legs of the triangle and c is the hypotenuse.

According to the given problem,

one leg: a= 5m and hypotenuse: c=13√5 m.

So, we can plug in these values in the above equation to get the value of unknown side:b. Hence,

5²+b²=(13√5)²

25 + b² = 13²*(√5)²

25 + b² = 169* 5

25+ b² = 845

25 + b² - 25 = 845 - 25

b² = 820

b =√ 820

b = √(4*205)

b = √4 *√205

b = 2√205

b= 2* 14.32

b = 28.64

So, b= 28.6 (Rounded to one decimal place)

Hence, the exact length of the unknown leg is 2√205m or 28.6 m (approximately).

5 0
3 years ago
Can someone help me I’m confused#5
MrRissso [65]

Answer:

Multiply

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Hey!
Talja [164]

Answer:

x=4

Step-by-step explanation:

  • 2x+16=8
  • 2x=16-8
  • x=8/2
  • x=4
<h2>Mark as brainliest if it helps . </h2>
8 0
3 years ago
Read 2 more answers
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