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4 years ago

Hey its really easy but help me pls

Mathematics

2 answers:

ddd [48]4 years ago

6 0

D is correct.

Hope this helps. :)

You divide the top number to the bottom number. So it would be top number divided by bottom number.

natita [175]4 years ago

5 0

Answer:

D) 26/48

Step-by-step explanation:

/ = division sign

26/48 also means 26 divided by 48.

Simple math.

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A polygon with 12 sides is called a/an a. dodecagon. b. pentagon. c. undecagon.

Pepsi [2]

The answer is A. dodecagon.

5 0

3 years ago

Read 2 more answers

Water Street intersects 25th Street and 28th Street at right angles. Highway 47 is parallel to 28th Street. How are 25th Street

mezya [45]

Answer:

25th Street is parallel with Highway 47

Step-by-step explanation:

Water Street intersects 25th Street and 28th Street at right angles.

Outcome ⇒ 25th Street and 28th Street are parallel

Highway 47 is parallel to 28th Street.

Outcome ⇒ 25th Street is parallel with Highway 47

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3 years ago

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2x(x -2)+16=2(2×+9) solve equation

nata0808 [166]

Answer:

√

−

√

Decimal Form:

4.31662479

…

−

2.31662479

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Step-by-step explanation:

4 0

4 years ago

Janet has three coins.

tatyana61 [14]

Answer:

Janet has coins worth 252.5, 101, and 50.5.

Step-by-step explanation:

Let us call the three coins $a,b$ , and $c$ .

The first coin $a$ is 5 times another coin (let's say $b$ ); therefore,

$a = 5b$ ,

and the third coin is 2 times the value of another coin (it's coin $b$ ):

$c =2b$ .

The total worth of all coins is 404; therefore,

$a+b+c =404$

$5b+b+2b =404$

$8b =404$

$\boxed{b = 50.5}$

with the value of $b$ in hand, we find $a$ and $c$ :

$a = 5b = 5(50.5)$

$\boxed{a = 252.5}$

and for $c:$

$c = 2 b = 2 (50.5)$

$\boxed{c = 101}$

Thus, Janet has 3 coins worth 252.5, 101, and 50.5.

8 0

4 years ago

The following data show the average retirement ages for a random sample of workers in the United States and a random sample of w

SSSSS [86.1K]

Answer:

$t \approx 2.639$

Step-by-step explanation:

Given

$\begin{array}{ccc}{} & {USA\ 1} & {Japan\ 2} & {\bar x} & {64.6} & {67.5} &{n} & {30} & {30} & {\sigma} & {4.0} & {4.5} \ \end{array}$

See attachment for data

Required

Determine the test statistic

The test statistic is calculated using:

$t = \frac{\bar x_1 - \bar x_2}{\sqrt{\frac{\sigma_1^2}{n_1} + \frac{\sigma_2^2}{n_2}}}$

So, we have:

$t = \frac{64.6 - 67.5}{\sqrt{\frac{4.0^2}{30} + \frac{4.5^2}{30}}}$

$t = \frac{64.6 - 67.5}{\sqrt{\frac{16.00}{30} + \frac{20.25}{30}}}$

$t = \frac{64.6 - 67.5}{\sqrt{\frac{16.00+20.25}{30}}}$

$t = \frac{64.6 - 67.5}{\sqrt{\frac{36.25}{30}}}$

$t = \frac{-2.9}{\sqrt{1.2083}}$

$t = \frac{-2.9}{1.099}$

$t \approx -2.639$

The absolute value is:

$t \approx 2.639$

3 0

3 years ago