3 years ago

What is the difference between exponent form and expanded form (repeated multiplication)?

1 answer:

5 0

Expanded FormExpanded form refers to a base and an exponent written as repeated multiplication. ExponentExponents are used to describe the number of times that a term is multiplied by itself. ExpressionAn expression is a mathematical phrase containing variables, operations and/or numbers.

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How do you solve for x using the problem above?

spin [16.1K]

First you have to subtract 35 on both sides, then you would have to divide by 90

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3 years ago

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A police office claims that the proportion of people wearing seat belts is less than 65%. To test this claim, a random sample of

babunello [35]

Answer: 0.345

Step-by-step explanation:

Given: The the setup for this hypothesis test:

$H_0:p=0.65\\\\H_a:p$

Since , the alternative hypothesis is left tail , so the test is left tail test.

$P_0=0.65\\\\Q_0=1-0.65=0.35\\\\p=\dfrac{126}{200}=0.63$

The test static for population proportion is given by :-

$z=\dfrac{p-P_0}{\sqrt{\dfrac{P_0Q_0}{n}}}\\\\\Rightarrow\ z=\dfrac{0.63-0.65}{\sqrt{\dfrac{0.65-0.35}{126}}}=−0.409878030638\approx-0.4$

The p-value of z = $P(z$

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4 years ago

(4x³-4+7x)-(2x³-x-8)

Ket [755]

<span>(4x³-4+7x)-(2x³-x-8) = </span>4x³-4+7x<span> - </span>2x³ + x+8 = (4x³-2x³) + (7x+x) -4+8 =

= 2x³ + 8x +4

(4x³-4+7x)-(2x³-x-8) = 2x³ + 8x +4

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3 years ago

Pls help me!!!!!!!!

Tcecarenko [31]

Answer: 127,500

Step-by-step explanation: I just used a calculator

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3 years ago

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Karla, an editor for “The Legacy” newspaper, edits 15 of a page in 3 minutes. How long would it take Karla to edit 3 pages?

artcher [175]

She edits 3 pages in a minute, so it would take her one minute

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3 years ago