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2 years ago

Which expression represents the calculation a (3x6)+5 B 6+(5x3) C 3+(6x5) D 3x(5+6)

Mathematics

1 answer:

Dahasolnce [82]2 years ago

5 0

Answer:

Step-by-step explanation:

<h2>BEACAUSE ITS FORMED PROPERLY</h2>

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Which equation has a constant of proportionality equal to 1/2

Olin [163]

The equation is Oy = 3/6x

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2 years ago

Please answer show all your work or tell me the steps

lutik1710 [3]

Answer:

2) $25.01 3) $25.98

Step-by-step explanation:

2) 23.6 x 7% = 23.6 x .07 (move the decimal 2 places to the right) 23.6 x .07 = 1.652 but its money so round to $1.65 + 23.36 = $25.01

3) 24 x 8.25 = 24 x .0825 (again to the right twice) 24 x .0825 = 1.98+24 = 25.98

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2 years ago

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Find the cosine ratio of angle Θ. Hint: Use the slash symbol ( / ) to represent the fraction bar, and enter the fraction with no

QveST [7]

Cos Ф=side adjacent/ hypotenuse
In this case:
cos Ф=3/5

Answer: cos Ф=3/5

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3 years ago

Approximate square root 44 to the nearest tenth

Georgia [21]

The square root of 44 = 6.64 and rounding this number to the nearest tenth would be 6.6

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3 years ago

A survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating (either an onl

Nadusha1986 [10]

Answer: $(0.081,\ 0.163)$

Step-by-step explanation:

Let $\hat{p}$ be the sample proportion.

As per given , we have

n= 411

$\hat{p}=\dfrac{50}{411}=0.121654501217\approx0.122$

Standard error : se=0.016

Critical value for 99% confidence : $z_{\alpha/2}=2.576$

Confidence interval for population proportion :-

$\hat{p}\pm z_{\alpha/2} (se)\\\\=0.122\pm (2.576)(0.016)\\\\=0.122\pm0.041216\\\\=(0.122-0.041216,\ 0.122+0.041216)\\\\=(0.080784,\ 0.163216)\approx(0.081,\ 0.163)$

Hence, the 99% confidence interval for the proportion of all US adults ages 55 to 64 to use online dating : $(0.081,\ 0.163)$

8 0

3 years ago