3 years ago

I need help with the question pls

Mathematics

2 answers:

Andreyy893 years ago

4 0

are there options for this question?

katen-ka-za [31]3 years ago

3 0

An equivalent fraction could be 4/6.

Multiply both the numerator and the denominator by the same number.

I multiplied both by 2

2*2/3*2

4/6

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Romashka-Z-Leto [24]

Answer:

2 3/4

Step-by-step explanation:

Her 3rd longest piece is 5 1/2 so half of 5 and 1/2 is 2 3/4

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3 years ago

Please help me i only have two tries! (slopes) (brainliest)

svet-max [94.6K]

The answer should be y=-1/7x

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3 years ago

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A research company desires to know the mean consumption of meat per week among people over age 40. A sample of 610 people over a

Papessa [141]

Answer: $(3.0,\ 3.2)$

Step-by-step explanation:

Confidence interval for population mean is given by :-

$\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}$ (1)

, where $\overline{x}$ = Sample mean

$z_{\alpha/2}$ = Critical z-value

$\sigma$ = Population standard deviation.

n= Sample size.

As per given , we have

n= 610

$\sigma=1.1$

$\overline{x}=3.1$

Significance level for 85% confidence : $\alpha=1-0.85=0.15$

By z-table critical two tailed z-value : $z_{\alpha/2}=z_{0.075}=1.44$

Put all values in (1) , we get

$3.1\pm 1.44\dfrac{1.1}{\sqrt{610}}$

$3.1\pm 1.44\dfrac{1.1}{24.698}$

$3.1\pm 0.064$

$=(3.1-0.064,\ 3.1+0.064)=(3.036,\ 3.164)\approx(3.0,\ 3.2)$

Hence, the 85% confidence interval for the mean consumption of meat among people over age 40. = $(3.0,\ 3.2)$

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3 years ago

If it was a snow day what would you do?

Olegator [25]

Answer:

Probably play video games and drink hot chocolate. Maybe go sledding to.

Step-by-step explanation:

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Do the ratios 2/1 and 20/10 from proportion?

schepotkina [342]

Yes !! i believe so :))

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3 years ago