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3 years ago

6

356.178 in expanded form

1 answer:

Leno4ka [110]3 years ago

7 0

300,000
+
50,000
+
6,000
+
100 or 0.100 if decimal
+
70 or 0.07 if decimal
+
8 or 0.008 if decimal

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I need help with this too

Ber [7]

Answer:

486

Step-by-step explanation:

So you would multiply 9*9 to get 81 then add it 6 times to get 486

5 0

3 years ago

In 16% of all homes with a stay-at-home parent, the father is the stay-at-home parent (Pew Research, June 5, 2014). An independe

enot [183]

Answer:

a)

$n = (\frac{z\sqrt{0.16*0.84}}{0.03})^2$ , in which z is related to the confidence level.

b) A sample size of 991 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

The margin of error is:

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

In 16% of all homes with a stay-at-home parent, the father is the stay-at-home parent

This means that $\pi = 0.16$

a. What sample size is needed if the research firm's goal is to estimate the current proportion of homes with a stay-at-home parent in which the father is the stay-at-home parent with a margin of error of 0.03 (round up to the next whole number).

This is n for which $M = 0.03$ . So

$M = z\sqrt{\frac{\pi(1-\pi)}{n}}$

$0.03 = z\sqrt{\frac{0.16*0.84}{n}}$

$0.03\sqrt{n} = z\sqrt{0.16*0.84}$

$\sqrt{n} = \frac{z\sqrt{0.16*0.84}}{0.03}$

$(\sqrt{n})^2 = (\frac{z\sqrt{0.16*0.84}}{0.03})^2$

$n = (\frac{z\sqrt{0.16*0.84}}{0.03})^2$ , in which z is related to the confidence level.

Question b:

99% confidence level,

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

$n = (\frac{z\sqrt{0.16*0.84}}{0.03})^2$

$n = (\frac{2.575\sqrt{0.16*0.84}}{0.03})^2$

$n = 990.2$

Rounding up

A sample size of 991 is needed.

8 0

3 years ago

Which statement is true about the polynomial

vaieri [72.5K]

The polynomial 6st⁹ – 3s⁶t² – 6t⁷ has 3 terms and the degree of the polynomial is 10. Then the correct option is B.

<h3>What is polynomial?</h3>

A polynomial expression is an algebraic expression with variables and coefficients.

The polynomial is given below.

5s⁶t² + 6st⁹ – 8s⁶t² – 6t⁷

Then polynomial can be arranged as

⇒ 6st⁹ + 5s⁶t² – 8s⁶t² – 6t⁷

⇒ 6st⁹ – 3s⁶t² – 6t⁷

The polynomial 6st⁹ – 3s⁶t² – 6t⁷ has 3 terms and the degree of the polynomial is 10.

Then the correct option is B.

More about the polynomial link is given below.

brainly.com/question/17822016

#SPJ1

6 0

3 years ago

Read 2 more answers

Given point T(-6,-3) and point K(2,3), find the distance from point T to point K.

navik [9.2K]

Answer:

$d = 10$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra II</u>

Distance Formula: $d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Step-by-step explanation:

<u>Step 1: Define</u>

Point T (-6, -3)

Point K (2, 3)

<u>Step 2: Find distance </u><em><u>d</u></em>

Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>

Substitute [DF]: $d = \sqrt{(2+6)^2+(3+3)^2}$
Add: $d = \sqrt{(8)^2+(6)^2}$
Exponents: $d = \sqrt{64+36}$
Add: $d = \sqrt{100}$
Evaluate: $d = 10$

7 0

3 years ago

Hey guys umm help me

gavmur [86]

The answer is c

1/6 divided by 1/2

i had this question on my own

3 0

3 years ago