4 years ago

Consider the sequence of steps to solve the equation:

Mathematics

1 answer:

allochka39001 [22]4 years ago

6 0

D. Multiplication Property

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Find the surface area

AlekseyPX

Answer:251.2m^2

Step-by-step explanation:

8^2+2*8*11.7

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3 years ago

In the diagram above, <1=40. Find the measure of <4 <br> <4 = [???]

HACTEHA [7]

Answer:

40 degrees.

Step-by-step explanation:

< 4 = < 1 = 40 degrees

( as they are vertical ( opposite) angles)

( US = vertical, UK = opposite)

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3 years ago

Read 2 more answers

A population is normal with a variance of 13. suppose you wish to estimate the population mean. find the sample size needed to a

bagirrra123 [75]

The margin of error is given by the formula

$ME=z_{\alpha /2}\frac{\sigma}{\sqrt{n}}$

Solving for n,

$n=z^2_{\alpha /2}\frac{\sigma^2}{ME^2}$

Here $1-\alpha =0.6826\\ \alpha =0.3174$

Using standard normal table $z_{\alpha /2}=-1$

$\sigma^2=13,ME=2$

Substituting numerical values,

$n=(-1)^2\frac{13}{2^2} \approx 4$

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3 years ago

Find the 31st term of the sequence {7, 11, 15, 19, 23,....}

weeeeeb [17]

It is adding 4 every time.

7 is the first term.
To get the 31st term, add 30*4 to 7 (why?)
The 31st term is 7+30*4=127

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3 years ago

Marissa bought 3 movies for $9.99 each and 2 video games for $14.99 each. These prices Included tax. She gave the cashier $70.00

Nastasia [14]

Answer:

She would get back 10.05

Step-by-step explanation:

Do 9.99 times three and you get 29.97 then do 14.99 times two and you get 29.98 then add them together to get 59.95. Next subtract 70.00 from 59.95 then you get how much change she needs back

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3 years ago