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3 years ago

Help with maths questions please

Mathematics

2 answers:

uysha [10]3 years ago

4 0

Answer for this is Option B

dolphi86 [110]3 years ago

3 0

Option B hope this helps

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A woman is randomly selected from the 18-24 age group. For women of this group, systolic blood pressures (in mm Hg) are normally

dybincka [34]

Answer:

0.0274

Step-by-step explanation:

The mean is $\mu =114.8$ and the standard deviation is $\sigma =13.1.$

Calculate

$Z=\dfrac{X-\mu}{\sigma}$

for $X=140:$

$Z=\dfrac{140-114.8}{13.1}\approx 1.9237.$

If $X\sim N(114.8,\ 13.1),$ then $Z\sim N(0,1)$

and

$Pr(X>140)=Pr(Z>1.9237).$

Use table for normal distribution probabilities to get that

$Pr(Z>1.9237)=1-Pr(Z\le 1.9237)=1-0.9726=0.0274.$

7 0

3 years ago

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The formula for potential energy is P = mgh, where P is potential energy, m is mass, g is gravity, and h is height. What is heig

Ivan

the height:

$h = \frac{P}{mg}$

(with g being the gravitational acceleration)

3 0

3 years ago

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Please Show Your Work!

timurjin [86]

Answer:

You have to have a Y and X axis line it may help. You can also time the few and yeah your smart you can do this i can help with more.

Step-by-step explanation:

I do this work. Thanks have a splendid life! Ask 4 me to solve more! Byes!

8 0

2 years ago

Here is another problem that can also be solved by working backwards.

g100num [7]

According to my brain, Maddy picked 6 cucumbers.

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2 years ago

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Allison earns a $40,000 base salary plus a commission equal to 15% of her total sales. If she sold $200,000 worth of goods, what

Sloan [31]

Answer:

The total salary of her is $1066666.66.

Step-by-step explanation:

Given : Allison earns a $40,000 base salary plus a commission equal to 15% of her total sales. If she sold $200,000 worth of goods.

To find : What was her total salary?

Solution :

Let x be the total salary.

Allison earns a $40,000 base salary.

If she sold $200,000 worth of goods.

i.e. the amount is $200,000-$40,000=$160,000

The total salary is given by,

$160,000=15% of x

$0.15\times x=160000$

$x=\frac{160000}{0.15}$

$x=1066666.66$

The total salary of her is $1066666.66.

6 0

3 years ago