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3 years ago

PLEASE HELP!!!

Mathematics

1 answer:

Alla [95]3 years ago

8 0

Answer:

area of window=1/2(πr²)=πr²/2=10²/2 π=50πinch²=50×3.14=157inch²

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The amounts of sugar (grams of sugar per gram of cereal) and calories (per gram of cereal) were recorded for a sample of 16 diff

tigry1 [53]

Answer:

The best predicted calorie count for a cereal with a measured sugar amount of 0.40 g is 3.864

Step-by-step explanation:

Consider the provided information.

he linear correlation coefficient is r= 0.765 and the regression equation is $\hat y= 3.46 + 1.01\times x$

The mean of the 16 amounts of sugar is 0.295 grams and the mean of the 16 calorie counts is 3.76.We need to find the best predicted calorie count for a cereal with a measured sugar amount of 0.40 g

Substitute x = 0.40 in the given equation.

$\hat y= 3.46 + 1.01\times 0.40$

$\hat y= 3.46 + 0.404$

$\hat y= 3.864$

Hence, the best predicted calorie count for a cereal with a measured sugar amount of 0.40 g is 3.864

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3 years ago

Please help.... A rectangle has a length of (x + 4) centimeters and a width of 12x centimeters. If the perimeter is 26 centimete

BigorU [14]

Answer:

The width of rectangle is $W=\frac{108}{13}\ cm$ or $8\frac{4}{13}\ cm$

Step-by-step explanation:

we know that

The perimeter of rectangle is equal to

$P=2(L+W)$

where

L is the length of rectangle

W is the width of rectangle

we have

$P=26/ cm\\L=(x+4)/ cm\\W=12x\ cm$

substitute

$26=2(x+4+12x)$

solve for x

$26=2(13x+4)$

$26=26x+8$

$26x=26-8$

$26x=18$

$x=\frac{18}{26}$

simplify

$x=\frac{9}{13}$

Find the width of rectangle

$W=12x\ cm$

substitute the value of x

$W=12(\frac{9}{13})=\frac{108}{13}\ cm$

Convert to mixed number

$\frac{108}{13}\ cm=\frac{104}{13}+\frac{4}{13}=8\frac{4}{13}\ cm$

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3 years ago

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Answer:

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Step-by-step explanation:

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