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3 years ago

Distribute the expression. 2(8nˆ2−5n+11)

2 answers:

8 0

You would do this from left to right.
2x8=16, you have nothing to complicate the variable or exponent so it's 16n
16n^2-5n+11
2x5 is 10
16n^2+10+11
2x11 is 22
Your answer os 16n^2+10n+11

Solnce55 [7]3 years ago

6 0

2(8n^2-5n+11)
16n^2-5n+11
11n^2+11

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Evaluation the expression using a model 2/3 dived by 1/2.

m_a_m_a [10]

Answer:la respuesta es 8/0

Step-by-step explanation:

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3 years ago

The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30, and the sample statistics

IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

$H_a: p$

Sample size : n= 1491

The sample proportion of adults smoked a cigarette= $\hat{p}=\dfrac{x}{n}=\dfrac{462}{1491}=0.30985915493\approx0.31$

The test statistic for proportion is given by :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

Substitute all the values , we get

$z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84$

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3 years ago

1. Divide using long division: (5x +13x² – 8x - 2) / (x+3)

DaniilM [7]

Answer:

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Step-by-step explanation:

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3 years ago

In some country the budget for defense exceeded the budget for education by $660.4 billion. If x represents the budget for edu

photoshop1234 [79]

Answer:

<u>The budget for defense can be represented as x + 660.4</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Budget for education is $ 660.4 billion less than budget for defense in some country

x = represents the budget for education, in billion of dollars

2. How can the budget for defense be represented?

x = represents the budget for education, in billion of dollars

x + 660.4 = represents the budget for defense, in billion of dollars also

<u>The correct answer is that the budget for defense can be represented as x + 660.4</u>

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2 years ago

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B. if u have wdgenuity it’s B i took the test

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