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3 years ago

A small business record its profits for three

Mathematics

1 answer:

dybincka [34]3 years ago

8 0

What’s the question?

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How many TENTHS are there in a one

kirza4 [7]

The answer is ten tenths

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4 years ago

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In a survey of 1,000 television viewers, 40% said they watch network news programs. For a 90% confidence level, the margin of er

ElenaW [278]

Answer: The margin of error = $3\%$

Step-by-step explanation:

Given

Sample size (n) = 1000

Population proportion = 0.4

$\alpha$ = 1 - confidence level

= 1 - 0.95

= 0.05

$margin\; of\; error = z_{\frac{\alpha }{2}}\sqrt{\frac{{\widehat{p}}{(1 -\widehat{p})}}{n}}$

$margin\; of\; error = z_{\frac{0.05 }{2}\sqrt{\frac{{(0.4)}{(1 -0.4)}}{1000}}$

$= z_{0.025}\sqrt{\frac{{(0.4)}{(0.6)}}{1000}}$

$= 1.96\sqrt{\frac{{(0.4)}{(0.6)}}{1000}}$

= 0.03

The margin of error change to $2.5\%$ to $3\%$

6 0

4 years ago

Please help 4(4+2x)=x(x+5)

lapo4ka [179]

Answer:

EF = 6

Step-by-step explanation:

Using the secant- secant power theorem, that is

GF × GE = GH × GS

4(4 + 2x) = 5(5 + x) ← distribute both sides

16 + 8x = 25 + 5x ( subtract 5x from both sides )

16 + 3x = 25 ( subtract 16 from both sides )

3x = 9 ( divide both sides by 3 )

x = 3

Then

EF = 2x = 2 × 3 = 6

3 0

3 years ago

Łatwy ułamek 36/7-3/5-4/10

Free_Kalibri [48]

Answer:

$4 \frac{1}{7}$

Step-by-step explanation:

$\frac{36}{7} - \frac{ 3}{5} - \frac{4}{10} \\ \\ lcm \: \: is \: \: 70 \\ \\ \frac{360 - 42 - 28}{70} \\ = \frac{290}{70} \\ = \frac{29}{7} \\ = 4 \frac{1}{7}$

hope this helps you.

Can I have the brainliest please?

5 0

3 years ago

5 •p• 3= 5• 3 •p Pls help me

natali 33 [55]

Don’t write out the word squared.

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4 years ago