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3 years ago

What is the sum of the coefficients in the expression of 4x^4 - x^3 - 2x^2 + 3 - 4

Mathematics

1 answer:

Zinaida [17]3 years ago

4 0

9514 1404 393

Answer:

Step-by-step explanation:

The coefficients are the numerical values that are not exponents. Their sum is ...

4 -1 -2 +3 -4 = 0

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Last year, the numbers of skateboards produced per day at a certain factory were normally distributed with a mean of 20,500 skat

alisha [4.7K]

Answer:

This can be solved by using the empirical rule for a normal distribution.

Step-by-step explanation:

A. The number of skateboards given is one standard deviation above the mean. Approximately 68% of the data points lie within the range plus and minus one standard deviation of the mean. Therefore the required percentage is:

68 + 16 = 84%.

B. The given number of skateboards is two standard deviations above the mean. Approximately 95% of the data points lie within the range plus and minus two standard deviations of the mean. Therefore the required percentage is:

5/2 = 2.5%

C.The given number of skateboards is one standard deviations below the mean. Therefore the required percentage is:

16%.

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3 years ago

Find the following when a = -3, b = 6, c = −4/5 9b−72a+1

Vadim26 [7]

271.

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3 years ago

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vladimir1956 [14]

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2 years ago

Michael is trying to write the algebraic expression for the following word phrase: the quotient of 6 and the sum of 5 and y? Mic

gizmo_the_mogwai [7]

Answer:

Error: He multiplied 6 by 5 + y instead of divided 6 by 5 + y

Correct solution: 6 ÷ (5 + y)

Step-by-step explanation:

- Lets revise some words of some operations in mathematics

# The sum ⇒ (+) Add

# The difference ⇒ (-) subtract

# The product ⇒ (×) multiply

# The quotient (answer of division) ⇒ (÷) divide

* Lets solve the problem

- Michael is trying to write the algebraic expression for the following

word phrase:

the quotient of 6 and the sum of 5 and y

- Lets explain that: the quotient means the answer of division so he

wants to divide a quantity by another one

∵ The first quantity is 6

∵ The second quantity is the sum of 5 and y

- He wants to divide 6 by (5 + y)

∴ The expression is 6 ÷ (5 + y)

* Error: He multiplied 6 by 5 + y instead of divided 6 by 5 + y

* Correct solution: 6 ÷ (5 + y)

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4 years ago

Find the surface area of the prism. Explain how you got your answer pls

zavuch27 [327]

Answer:

Step-by-step explanation: I’m too lazy to do it but just substitute the values into the formula of a Rectangular prism Surface Area

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3 years ago

Read 2 more answers