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2 years ago

Give a example of when you would use the friendly numbers strategy to subtract. explain why

1 answer:

7 0

This is because, when you're in the real world, you don't always have pen and paper with you, so using friendly numbers like 10, would make it much easier for you to subtract.

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10x^2-3x-27<br> Factor the trinomial

noname [10]

Answer:

(2x+3)(5x-9)

Step-by-step explanation:

10x^2-3x-27

10x^2 + 15x - 18x - 27

(5x)(2x+3)-9(2x+3)

(2x+3)(5x-9)

Hope this helps!

6 0

2 years ago

Which statement is true about function f? please answer urgently

Mama L [17]

Answer: C

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Select five numbers that have 7, 13, and 3 as prime factors.

MaRussiya [10]

Answer:

ADFGH

Step-by-step explanation:

Good luck on your test!

5 0

1 year ago

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A sales analyst listed the probabilities of profits and losses in dollars for a certain company. Find the mean for the probabili

kakasveta [241]

Answer: The mean for the probability distribution will be 69.25.

Explanation:

Since we given that

$At\ x_1= -500 ,P(x) = 0.076\\$

$At\ x_2= -250,P(x)= 0.191\\$

$At\ x_3=0, P(x)= 0.265\\$

$At\ x_4=250 , P(x)= 0.316\\$

$At\ x_5=500 , P(x)= 0.152\\$

As we know the formula for expectation of x i.e. known as mean for the probability distribution,

$E(x)=x\sum_{1}^{5} P(x)$

So, we apply this formula in our case,

$-500\times 0.076+(-250)\times 0.191+0\times 0.265+250\times 0.316+500\times 0.512=69.25$

$\mu = 69.25$

Hence, the mean for the probability distribution will be 69.25.

4 0

2 years ago

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A solution to the inequality 3.75 – 3x ≤ 6.

LenKa [72]

Answer:

x ≥ -0.75

Step-by-step explanation:

3.75 - 3x ≤ 6

Subtract 3.75 on both sides.

- 3x ≤ 6 - 3.75

- 3x ≤ 2.25

Divide both sides with -3.

x ≥ 2.25/-3

x ≥ -0.75

7 0

2 years ago

Read 2 more answers