Find the measure of angle b.*

Answer:

r = 7

Step-by-step explanation:

hope this was helpful let me know  you need the steps! :)

Answer: 1.75 or 1 3/4

Step-by-step explanation:

Because first you need to get R by it’s self by dividing it by 1/2 then if you divided it by one side you have to divide it by the other side so you get r=1.75 or 1 3/4.

Answer:

[7-2x+5y-(x-y) -[5x+3y-7]

= 7-2x+5y-x+y-5x-3y+7

=7+7-2x-x-5x+5y+y-3y

=14-8x+3y

=-8x+3y+14

Step-by-step explanation:

Answer:

The answer is 14!

Step-by-step explanation:

Answer:

t-120(30

Step-by-step explanation:

Answer:

idek this one was confusing for me to

Answer:

Number of advance tickets sold = 30

Number of same-day tickets sold = 20

Step-by-step explanation:

Let,

x be the number of advance tickets sold

y be the number of same-day tickets sold

According to given statement;

x + y = 50      Eqn 1

25x + 20y = 1150     Eqn 2

Multiplying Eqn 1 by 25

25(x+y=50)

25x + 25y = 1250     Eqn 3

Subtracting Eqn 2 from Eqn 3

(25x+25y)-(25x+20y) = 1250 - 1150

25x + 25y - 25x - 20y = 100

5y = 100

Dividing both sides by 5

[tex]\frac{5y}{5}=\frac{100}{5}\\y=20[/tex]

Putting y = 20 in Eqn 1

x + 20 = 50

x = 50 - 20

x = 30

Hence,

Number of advance tickets sold = 30

Number of same-day tickets sold = 20

Answer:

0.3821 = 38.21% probability that Ricardo makes a higher proportion of putts than Tammy.

Step-by-step explanation:

To solve this question, we need to understand the normal distribution, the central limit theorem, and subtraction of normal variables.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]

Subtraction of normal variables:

When we subtract normal variables, the mean of the subtraction will be the subtraction of the means, while the standard deviation will be the square root of the sum of the variances.

Ricardo makes 47% of his putts, and attempts 25 putts.

By the Central Limit Theorem, we have that:

[tex]\mu_R = 0.47, s_R = \sqrt{\frac{0.47*0.53}{25}} = 0.0998[/tex]

Tammy makes 51% of her putts, and attempts 30 putts.

By the Central Limit Theorem, we have that:

[tex]\mu_T = 0.51, s_T = \sqrt{\frac{0.51*0.49}{30}} = 0.0913[/tex]

What is the probability that Ricardo makes a higher proportion of putts than Tammy?

This is the probability that the subtraction of R by T is larger than 0. The mean and standard deviation of this distribution are, respectively:

[tex]\mu = \mu_R - \mu_T = 0.47 - 0.51 = -0.04[/tex]

[tex]s = \sqrt{s_R^2 + s_T^2} = \sqrt{0.0998^2 + 0.0913^2} = 0.1353[/tex]

This probability is 1 subtracted by the pvalue of Z when X = 0. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{0 - (-0.04)}{0.1353}[/tex]

[tex]Z = 0.3[/tex]

[tex]Z = 0.3[/tex] has a pvalue of 0.6179

1 - 0.6179 = 0.3821

0.3821 = 38.21% probability that Ricardo makes a higher proportion of putts than Tammy.

Answer:

A (.384)

Step-by-step explanation:

EDGE2021! :)

Answer:

The slope is 1 :)

Step-by-step explanation:

Answer:

1210.36

Step-by-step explanation:

40,000=pv

5.64/12=0.47% is interest

3*12=36 periods

I have used a financial calculator

Answer:ooop

Step-by-step explanation:

Shshjaasksk

Answer:

3 to the 5th power would be 243.

Answer: 4%

Convert fraction (ratio) 2 / 5

Answer:20-24 feet

Step-by-step explanation:

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

So  x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

Answer:

table 2

Step-by-step explanation:

im not fully sure if this is correct

the answer is x/4

Step-by-step explanation:

i did the test!

Answer:

7

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

Answer:

-40 - 8 = 48

Step-by-step explanation:

Answer:

16x - 24

Step-by-step explanation:

Use distributive property to find the product of 8 and 2 and the product of 8 and 3 since x is unknown leave it as x by the 16 and subtract 24

Answer:

5.25 miles

Step-by-step explanation:

15 min=1/4 of hour

12/4=3

9/4=2.25

3+2.25=5.25

Answer:

d = 4.59 miles

Step-by-step explanation:

Distance Between Two Points in the Plane

Given two points A(x,y) and B(w,z), the distance between them is:

[tex]d=\sqrt{(z-y)^2+(w-x)^2}[/tex]

The fishing boats leave the marina in perpendicular directions. The first boat travels north at v=12 mph for t=15 minutes. Converting to hours t=15/60=0.25 hours.

The distance covered by this boat is

d1 = 12*0.25 = 4 miles

The boat ends up at the point (0,4).

The second boat travels east at v=9  mph for the same time t=0.25 hours. The distance is:

d2= 9*0.25 = 2.25 miles

This boat ends up at the point (2.25,0)

The distance between them is

[tex]d=\sqrt{(4-0)^2+(0-2.25)^2}=\sqrt{16+5.0625}=\sqrt{21.0625}[/tex]

Calculating the square root:

d = 4.59 miles

Answer:

THE ANSWERE IS C!!!!!!!

Step-by-step explanation: it says above 0 so its not India it has 0

its not Dominican Republic or france and japan cause it is negetive the oly chose is hurgay

Answer:

Step-by-step explanation:

Answer:

$8

Step-by-step explanation:

I always take 10% first cause it's easy to do, 10% of $40 is $4, plus another 10% would make it $8

Answer:12=0

Step-by-step explanation:

Step-by-step explanation:

10*x=10

20*y=20

20+10=30

y = 4x +8

Step-by-step explanation:

Just take the signs of the integers and switch them around! -4 becomes +4, and -8 becomes +8. Note that you should not switch multiplication to division, this only works for addition and subtraction signs.

9514 1404 393

Answer:

  not proportional -- the y-intercept is not zero

Step-by-step explanation:

A quick check of table values shows the relationship is not proportional:

  100/2 = 50 ≠ 45 = 180/4

That is, the ratios of table values are not constant.

__

When the values are graphed, the line through the points does not intersect the origin. This is further indication the relationship is not proportional.

Answer:

False

Step-by-step explanation:

Answer:

A. True

Step-by-step explanation:

7 divided by 1/4 flip it it equals 28

7 x 4 -= 28

Answer:

Step-by-step explanation:

The trick is to find the radius. The surface area does that.

A =4* pi * r^2

20096 = 4 * 3.14 * r^2

20096 / 4 = 3.14 * r^2

5024 = 3.14 * r^2

5024 / 3.14 = r^2

r^2 = 1600

√r^2 = √1600

r = 40

Now all you do is use r to find the Volume

V = (4/3) * 3.14 r^3

V = (4/3) * 3.14 * 40^3

V = 1.333 * 3.14 * 64000

V =  26796.67

Answer:

4/10= 2/5

Step-by-step explanation:

Answer:

red shirts  :  total

4                 :  10=      4/10

9514 1404 393

Answer:

  30 in

Step-by-step explanation:

The enclosing rectangle is 4 by 10, so has a perimeter of ...

  P = 2(L+W) = 2(10+4) = 28

The notch adds 2 inches to the perimeter, so the total of all side lengths is ...

  28 +2 = 30 . . . inches

Answer: 336 beads

Step-by-step explanation:

To find how many beads are in each layer, use the equation 12 x 7 = 84

Then multiply the amount of beads by each layer: 84 x 4 = 336