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3 years ago

Evaluate each expression when a = -4 and b = 31.) ab2.) 2a + 3b 2.) 2(a - b)

Mathematics

1 answer:

Svet_ta [14]3 years ago

3 0

1) -12

ab is a times b. We plug in the numbers (-4)*(3) which equals -12.

2) 1

We plug in -4 for a, and 3 for b into the equation.

We get 2(-4) + 3(3)

2*-4 is -8. 3*3 is 9. We add them both, and -8+9 equals 1.

3) -14

We plug in -4 for a, and 3 for b into the equation.

2(-4-3)

-4-3 is -7. -7*2 equals -14.

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3 years ago

AX + B = C what is X equal to?

elena-14-01-66 [18.8K]

Answer:

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Step-by-step explanation:

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5 0

3 years ago

(10y-37)=(4y+7) what is the answer?

kolbaska11 [484]

Answer:

Step-by-step explanation:

10y-37 = 4y+7

by transposing,

10y-4y = 7+37

6y = 44

y = 44/6

hope this helps

plz mark it as brainliest!!!!!!

7 0

3 years ago

Read 2 more answers

The amount of gasoline sold each month to customers at Bob's Exxon station in downtown Navasota is a random variable. This rando

swat32

Answer:

The probability that Bob will win that wonderful trip on the basis of his gasoline sales this month

P(X≥ 2800) = P(Z₁≥1.5) = 0.0768

Step-by-step explanation:

Step(i):-

Mean of the Population (μ) = 2500 gallons

Standard deviation of the population (σ) =200 gallons

Let 'X' be a random variable in Normal distribution

Given X = 2800

$Z = \frac{x-mean}{S.D} = \frac{2800-2500}{200} = 1.5$

Step(ii):-

The probability that Bob will win that wonderful trip on the basis of his gasoline sales this month

P(X≥ 2800) = P(Z₁≥1.5)

= 0.5 - A(Z₁)

= 0.5 - A(1.5)

= 0.5 -0.4232 ( from normal table)

= 0.0768

Conclusion:-

The probability that Bob will win that wonderful trip on the basis of his gasoline sales this month

P(X≥ 2800) = P(Z₁≥1.5) = 0.0768

3 0

3 years ago

Write the expression below as a product of two factors. -12p + 6y - 24

MariettaO [177]

Answer:

− 6 ( 2 p − y + 4 )

Step-by-step explanation:

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3 years ago

Evaluate each expression when a = -4 and b = 31.) ab2.) 2a + 3b 2.) 2(a - b)​

Evaluate each expression when a = -4 and b = 31.) ab2.) 2a + 3b 2.) 2(a - b)