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2 years ago

5

Heights of women have a bell-shaped distribution with a mean of 161 cm and a standard deviation of 7 cm. What percent of women f

all between 154 cm and 182 cm

1 answer:

harkovskaia [24]2 years ago

5 0

Answer:b

:D

Step-by-step explanation:d

504

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Maria walked 3 km west and 4 km south calculate how far she is from her starting point

Mekhanik [1.2K]

I believe her distance is 5. Use the Pythagorean Theorem to help you

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3 years ago

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3 years ago

$6,000 dollars is invested in two different accounts earning 3% and 5% interest. at the end of one year, the two accounts earned

Anettt [7]

<u>Answer-</u>

<em>$2000</em><em> were invested at 5%</em>

<u>Solution-</u>

Let x amount of money was invested at 5% and (6000-x) amount was invested as 3%

We know that,

$i=\dfrac{P\cdot r\cdot t}{100}$

Putting the values,

$i_1=\dfrac{P_1\cdot r_1\cdot t}{100}$

$i_1=\dfrac{x\cdot 5\cdot 1}{100}=\dfrac{5x}{100}$

And

$i_2=\dfrac{P_2\cdot r_2\cdot t}{100}$

$i_2=\dfrac{(6000-x)\cdot 3\cdot 1}{100}=\dfrac{3(6000-x)}{100}$

According to the question,

$\Rightarrow \dfrac{5x}{100}+\dfrac{3(6000-x)}{100}=220$

$\Rightarrow \dfrac{5x+3(6000-x)}{100}=220$

$\Rightarrow 5x+3(6000-x)=22000$

$\Rightarrow 5x+18000-3x=22000$

$\Rightarrow 5x-3x=22000-18000$

$\Rightarrow 2x=4000$

$\Rightarrow x=2000$

Therefore, $2000 were invested at 5%

8 0

3 years ago

Read 2 more answers

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Vlad [161]

Evaluate just means plug in the value that they give you, so instead of r you plug in -1/2
So. 28+79(-1/2)
=28+(-39.5)
= 28-39.5
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3 years ago

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Show how 8 people could share 12 cookies equally

Volgvan

You would have to do 1.5 cookies per person because 1.5+1.5=3 and that is two people so add two more and it makes 6 cookies for 4 people so if you add together 4+4 it'll equal 8 people & 6+6 equals 12 cookies

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3 years ago