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3 years ago

3 (bx - 2ab) = b (x - 7a) + 3ab solve for x

2 answers:

4 0

chubhunter [2.5K]3 years ago

3 0

Answer:

The value of x = a.

Step-by-step explanation:

Consider the provided equation.

3 (bx - 2ab) = b (x - 7a) + 3ab

Use the distributive property: a(b+c)=ab+ac

3bx - 6ab = bx - 7ab + 3ab

Now add the like variable.

3bx - 6ab = bx - 4ab

Subtract bx and add 6ab on both sides.

3bx - 6ab - bx + 6ab = bx - bx - 4ab + 6ab

2bx = 2ab

Divide both the side by 2b.

x = a

Hence, the value of x = a.

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3 years ago

Find the first 3 terms of arithmetic sequence if t5=-154 and t9=-274. find t1, t2, t3

777dan777 [17]

Answer: t1 = -34; t2 = -64; t3 = -94

d is the distance between numbers (d > 0)

we have:

t5 = t1 + 4d = -154

t9 = t1 + 8d = -274

we have the equations:

t1 + 4d = -154

t1 + 8d = -274

<=> t1 = -34

d = -30

with t1 = -34 and = -30 => t2 = -34 - 30 = -64

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Step-by-step explanation:

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3 years ago

According to records in a large hospital, the birth weights of newborns have a symmetric and bell-shaped relative frequency dist

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Answer:

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 6.8 pounds

Standard Deviation, σ = 0.5

We are given that the distribution of birth weights is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(birth weight under 6.3 pounds)

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3 years ago

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Step-by-step explanation:

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Therefore, after 1975 the growth rate will remains same.

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3 years ago