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3 years ago

Pleaseee send the answer I’m doing a test pog

Mathematics

1 answer:

Norma-Jean [14]3 years ago

8 0

Answer:

X = 38°

Step-by-step explanation:

There is a therom angles subtended on the remaining part are equal in magnitude

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Triangle A is a scaled version of triangle B. The dimensions of triangle B are twice the dimensions of triangle A. The area of t

zimovet [89]

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This is because if we double the base and the height in the area equation it will raise any number by a factor of 4.

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3 years ago

What is 9.187 to the nearest tenth? And hundredth and one

Assoli18 [71]

<span> 9.187 to the nearest tenth is 9.2

The 1 in 9.187 is in the tenths place and since the number after it is over 5, you round up. </span>

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3 years ago

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An anthropologist studies a woman's femur that was uncovered in Madagascar. To estimate the woman's height, he uses the equation

Lelu [443]

Answer:

The inequality $f>40$ represents the length of the femur for which the woman had a height greater than 160cm.

Step-by-step explanation:

The given equation is

$h=60+2.5f$

Where, h is woman's height in centimeters and f is length of the femur in centimeters.

If woman's height is greater than 160cm, then

$h>160$

$60+2.5f>160$

Substract 60 from both sides.

$2.5f>100$

Divide both sides by 2.5.

$f>40$

Therefore the inequality $f>40$ represents the lengths of the femur for which the woman had a height greater than 160cm.

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3 years ago

A poll agency reports that 75% of teenagers aged 12-17 own smartphones. A random sample of 234 teenagers is drawn. Round your an

GalinKa [24]

Answer:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

Step-by-step explanation:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

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3 years ago

The 30 members of a choir trying to raise at least 1500$ to cover travel costs to a singing camp. They have already raised 600$.

arlik [135]

Let x represent the amount of money each member can raise to meet the goal.

600+30x≥1500

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3 years ago