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2 years ago

15

Find the probability of being below 514 if the mean of a normal distribution is 474 and the standard deviation is 32.

1 answer:

4vir4ik [10]2 years ago

8 0

1,873

Step-by-step explanation:

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The table below shows the number of red, blue, and white ribbons won by 4 girls during last years gymnastic season

Yuri [45]

Answer: B or D

Step-by-step explanation:

Karens ration is 5:15 whilst chens is 6:19

1/3 of 15 is gonna be 5, while 19 is gonna be around 6.3

I got 1/3 cause there is 3 colors, and red is one of them, since the question is asking about the total. I would be leaning more towards B though.

3 0

2 years ago

Read 2 more answers

what is the equation in poiny slope form of the line that is perpendicular to the given line and passes through the point (-4, -

MaRussiya [10]

Answer:

Step-by-step explanation:

Well, there is no given equation, but I can tell you that perpendicular lines have OPPOSITE <em>MULTIPLICATIVE INVERSE </em><em>[</em><em>RECIPROCAL</em><em>]</em><em> </em><em>rate of changes</em> [<em>slopes</em>].

Ex: 2 --> -½; -2 --> ½

3 0

3 years ago

Read 2 more answers

What percent of 65 is 5?<br><br> Help hurry!

Ipatiy [6.2K]

Hello from MrBillDoesMath!

Answer:

7.7 % (approximately)

Discussion:

65 * x% = 65 * (x/100) = 5 => (multiply both sides by 100)

65 *( x/100)* 100 = 5 * 100 =>

65x = 500 =>

x = 500/65 = 7.7 (approx)

Regards,

MrB

P.S. I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!

7 0

2 years ago

A circular fountain has a diameter of 8 feet there is a flower garden planted around the fountain. if the garden extends 12 feet

LuckyWell [14K]

Answer:

753.98 square feet

Step-by-step explanation:

Diameter of the fountain =8 inches

Therefore Radius of the fountain, =8/2=4 Inches

The flower garden extends 12 feet beyond the fountain, therefore:

Radius of the flower garden=4+12 =16 Inches

Let the fountain be the inner circle with radius r and the larger circle which includes the garden have a radius, R. Then:

Area of the flower garden $=\pi (R^2-r^2)$

$=\pi (16^2-4^2)\\=240\pi\\=753.98$ square feet$

7 0

2 years ago

The topic is piecewise functions, can someone help? i’m a little confused :)

AleksAgata [21]

Given:

The piecewise function is:

$f(x)=\begin{cases}x+5&x$

To find:

The values of $f(-4),f(-2),f(0),f(3)$ .

Solution:

For $x$ , the function is

$f(x)=x+5$

For $x\geq -2$ , the function is

$f(x)=x^2+2x+3$

a) The value of $f(-4)$ is:

$f(-4)=-4+5$

$f(-4)=1$

b) The value of $f(-2)$ is:

$f(-2)=(-2)^2+2(-2)+3$

$f(-2)=4-4+3$

$f(-2)=3$

c) The value of $f(0)$ is:

$f(0)=(0)^2+2(0)+3$

$f(0)=0-0+3$

$f(0)=3$

d) The value of $f(3)$ is:

$f(3)=(3)^2+2(3)+3$

$f(3)=9+6+3$

$f(3)=18$

Therefore, the required values are $f(-4)=1,f(-2)=3,f(0)=3,f(3)=18$ .

8 0

2 years ago