3 years ago

Please help me ......

1 answer:

3 0

For the first problem, when you see expression like that it just means to write it twice, then FOIL it.
(2x-6) (2x-6)
If you don't know what FOIL is let me know and I can further explain it!

This also applies for the second question!

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50 multiplied by 100

ra1l [238]

When multiplying by 100 just add 2 zero's behind your second number. ANSWER:5,000

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3 years ago

Find the measure of Side b. Round to the nearest whole number. b = __ in.

Brrunno [24]

Cos = adjacent over hypotenuse

cos33 = b/170

170cos33 = b

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5 0

3 years ago

the standard deviation of 100 random samples of the same size is approximated to be 0.98. what is the margin of error

pogonyaev

Answer:

MOE= ± 0.098

Step-by-step explanation:

-The margin of error is calculated using the formula:

$MOE=\pm \frac{\sigma}{\sqrt{n}}$

#Substitute to solve for MOE:

$MOE=\pm \frac{\sigma}{\sqrt{n}}\\\\=\frac{0.98}{\sqrt{100}}\\\\=\pm 0.098$

Hence, the margin of error is ± 0.098

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3 years ago

Write a numerical expression with exponents to describe the sum of 3x3x3x3 and 36

grandymaker [24]

Answer:

3^3 and 36^1

Step-by-step explanation:

3x3x3x3 is multiplying that 4 times so it is to the power of 4

36 is just once so it is to the power of one

4 0

3 years ago

Read 2 more answers

10 points i need help i need to finish in 1 hour<br><br><br>how much does it cost to buy 3 drinks

Nimfa-mama [501]

Answer:

4.50

Step-by-step explanation:

3 divided by 2 is 1.5, which is equivalent to $1.50. So each drink cost 1.50. 1.50 x 3 = 4.50.

3 0

3 years ago