a golfer hits a ball with an initial velocity of 120ft/sec so that its path as it leaves makes a 23 ° angle with the horizontal. About how long will it take for the ball to hit the ground?

Answer:

??/????

Step-by-step explanation:

Answer:

are you okay?

Step-by-step explanation:

just kidding...i know you're not...

Answer:

graph

Step-by-step explanation:

Answer:

x and 2x+1

Step-by-step explanation:

Answer:

216 times the original

Step-by-step explanation:

Volume 1 = 4/3 πr³

volume 2 = 4/3 π(6r)³

v 2 / v 1 = 6³ = 216

When the radius of a sphere is multiplied by 6, the volume is multiplied by 216

Let the radius of the sphere be r

The volume of a sphere of radius, r is calculated as:

v = 4/3 πr³

When multiplied by 6, the radius becomes:

R = 6r

The new volume is then calculated as:

V = 4/3 π(6r)³

Divide both volumes

V/v = 4/3 π(6r)³ / 4/3 πr³

Evaluate the quotient

V/v = 6³

V/v = 216

Hence, when the radius of a sphere is multiplied by 6, the volume is multiplied by 216

Read more about volumes at:

https://brainly.com/question/1972490

Answer:

The answer is a

Step-by-step explanation:

it’s a because each dude is 1/2 and you add another one half that’s one and you keep on doing until the last one.

brainliest pls

I hope this helped and was right.

Step-by-step explanation:

Length: 6

width: 4

height:3

Formula :

Volume= l x w x h

6x4x3 =72

72 x 1/2= 36in3/A

Answer:

21

Step-by-step explanation:

21 and 27

You are only given an option of 21, so take it.

Answer:

its 21

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

Let the number be 'x'

Sum of 'x' and 12 = x +12

The product of 8 and the sum of a number and 12 = 8* (x +12)

            = 8*x + 8*12

            = 8x + 96

8x + 96 = 240

Subtract 96 from both sides

8x  + 9 6 - 96  = 240 - 96

8x = 144

Divide both sides by 8

x = 144/8

x = 18

Answer:

B

Step-by-step explanation:

you need to find the absolute value

Answer:

log 5^3 = 3 log 5 = 3(0.69897) = 2.09691

Step-by-step explanation:

log 125 = log 5^3 = y; find y:

log 5^3 = 3 log 5 = 3(0.69897) = 2.09691

Answer:

x + y + z = 180 (this is the first equation)

w + z = 180 (this is the second equation)

Now, rewrite the second equation as z = 180 - w and substitute that for z in the first equation:

x + y + (180 - w) = 180

x + y - w = 0

x + y = w

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

120 dots

Step by step explanation:

In total there are 120 dots on the edges of a cube.

Given that, a cube has an edge length of 10 cm. Starting at the vertices dots are placed along every edge at 1 cm intervals.

We need to find how many dots will there be in total once the pattern has been completed.

The number of edges in the cube is 12.

Now, the number of dots on an edge of 10 cm has 10 dots.

The total number of dots = Number of dots on an edge × Number of edges in a cube.

=10×12=120.

Therefore, in total there are 120 dots on the edges of a cube.

To learn more about the edges of the cube visit:

https://brainly.com/question/16256718.

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Answer:

23ft!!

Step-by-step explanation:

brainliest please?

Answer:

23 ft

Step-by-step explanation:

Step-by-step explanation:

know the normal large sample condition is not met and also there are outliers

Answer:

C

Step-by-step explanation:

No, the Normal/large sample condition is not met.

Answer:

5(6-t)

Step-by-step explanation:

in math, product means the "sum" of the equation or the final answer

and in your case, that means 5*6, but then we also have to remember that we're "reducing" or subtracting 't'-

5(6-t)

good luck :)

i hope this helps

brainliest would be highly appreciated

have a nice day!

Answer:

total length =5+5+10+10+π(10/2)=45.71ft.

Perimeter of semicircle

Now

Total length

Answer:

D is the answer

Step-by-step explanation:

You just distribute the negative three and combine like terms

Answer:

The minimum sample size required to create the specified confidence interval is of 565.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1 - 0.8}{2} = 0.1[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].

That is z with a pvalue of [tex]1 - 0.1 = 0.9[/tex], so Z = 1.28.

Now, find the margin of error M as such

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

Found the standard deviation to be 1.3.

This means that [tex]\sigma = 1.3[/tex]

Error of no more than 0.07. What is the minimum sample size required to create the specified confidence interval?

This is n for which M = 0.07. So

[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]

[tex]0.07 = 1.28\frac{1.3}{\sqrt{n}}[/tex]

[tex]0.07\sqrt{n} = 1.28*1.3[/tex]

[tex]\sqrt{n} = \frac{1.28*1.3}{0.07}[/tex]

[tex](\sqrt{n})^2 = (\frac{1.28*1.3}{0.07})^2[/tex]

[tex]n = 565.1[/tex]

Rounding up:

The minimum sample size required to create the specified confidence interval is of 565.

Answer:

$2500

Step-by-step explanation:

Given that,

The lost percentage = 9%

Amount she had = $22,750

We need to find Mrs. Fisher's original investment.

As she had lost 9%, it means she will remain with 91% of her investment. Let the original investment is x.

So,

[tex]91\%\ of \ x=22,750\\\\\dfrac{91}{100}x=22,750\\\\x=\dfrac{22,750\times 100}{91}\\\\x=\$25000[/tex]

So, her original investment is equal to $25000.

Answer:

i think its 2:7

Step-by-step explanation:

heres why

16 and 56 both have a number that equals which it is 8

so u divide

16/8=2

56/8=7

16:56 in simplest form is 2:7

Answer:

8.25

Step-by-step explanation:

(8x 8) + (2x2) = x ^2

64 + 4 = x2

x = √68

x = 8.25

Answer:

$6.03

Step-by-step explanation:

The question is asking us how much each pair of socks cost. With the information we are given, we know that there are 5 pairs and that they all cost the same amount. If the total were just the 5 socks, we could easily divide the total by 5 to get the price of each pair but that's not the case. The soccer ball is included in the final cost. To overcome this, we just have to subtract the soccer ball's cost ($45) from the total.

So we subtract $45 from $75.15, giving us $30.15, the total amount of all the socks. However we need to find out how much each pair costs and there are 5 of them, so we divide 30.15 by 5. This gives us the answer, $6.03.

Each pair of socks cost $6.03.

Simpler Explanation:

The answer is $6.03

Answer:

1)80%

2)210%

3)65%

4)105%

Answer:

80%

210%

65%

105%

Step-by-step explanation:

To solve for each of these equations, let's make them fractions first. The denominator will be 20 since that was the goal.

Elena did [tex]\frac{16}{20}[/tex] pushps.

Jada did [tex]\frac{42}{20\\}[/tex] pushups.

Lin did [tex]\frac{13}{20}[/tex] pushups.

Andre did [tex]\frac{21}{20}[/tex] pushups.

To convert this to percentages, let's multiply each by fraction by [tex]\frac{5}{5}[/tex]. This will give us a denominator of 100. The denominator will represent the percentage.

Elena did [tex]\frac{16}{20}[/tex] × [tex]\frac{5}{5}[/tex] = [tex]\frac{80}{100}[/tex] pushps. Elena did 80 percent of the pushups.

Jada did [tex]\frac{42}{20\\}[/tex] × [tex]\frac{5}{5}[/tex] = [tex]\frac{210}{100}[/tex] pushups. Jada did 210 percent of the pushups.

Lin did [tex]\frac{13}{20}[/tex] × [tex]\frac{5}{5}[/tex] = [tex]\frac{65}{100}[/tex] pushups. Lin did 65 percent of the pushups.

Andre did [tex]\frac{21}{20}[/tex] × [tex]\frac{5}{5}[/tex]  = [tex]\frac{105}{100}[/tex] pushups. Andre did 105 percent of the pushups.

Answer:

(A)48

(B)volume of one of the small cubes is 1/64cm^3

c)3/4x1x1=3/4cm^3

Step-by-step explanation:

Answer:

a) The area to the left of 18 is 0.5.

b) The area to the left of 14 is if 0.309.

c) The area to the right of 17 is of 0.55.

d) The area to the right of 19 is of 0.45.

e) The area between 14 and 30 is of 0.624.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score 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, which is the area to the left of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X, which is the area to the right of X.

A variable is normally distributed with mean 18 and standard deviation 8

This means that [tex]\mu = 18, \sigma = 8[/tex]

a) Find the area to the left of 18.

This is the pvalue of Z when X = 18.

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

[tex]Z = \frac{18 - 18}{8}[/tex]

[tex]Z = 0[/tex]

[tex]Z = 0[/tex] has a pvalue of 0.5.

So the area to the left of 18 is 0.5.

b) Find the area to the left of 14.

This is the pvalue of Z when X = 14. So

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

[tex]Z = \frac{14 - 18}{8}[/tex]

[tex]Z = -0.5[/tex]

[tex]Z = -0.5[/tex] has a pvalue of 0.309

The area to the left of 14 is if 0.309.

c) Find the area to the right of 17.

This is 1 subtracted by the pvaleu of Z when X = 17. So

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

[tex]Z = \frac{17 - 18}{8}[/tex]

[tex]Z = -0.125[/tex]

[tex]Z = -0.125[/tex] has a pvalue of 0.45

1 - 0.45 = 0.55

The area to the right of 17 is of 0.55.

d) Find the area to the right of 19.

This is 1 subtracted by the pvaleu of Z when X = 19. So

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

[tex]Z = \frac{19 - 18}{8}[/tex]

[tex]Z = 0.125[/tex]

[tex]Z = 0.125[/tex] has a pvalue of 0.55

1 - 0.55 = 0.45

The area to the right of 19 is of 0.45.

e) Find the area between 14 and 30.

This is the pvalue of Z when X = 30 subtracted by the pvalue of Z when X = 14.

X = 30

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

[tex]Z = \frac{30 - 18}{8}[/tex]

[tex]Z = 1.5[/tex]

[tex]Z = 1.5[/tex] has a pvalue of 0.933

From b), when X = 14, Z has a pvalue of 0.309.

0.933 - 0.309 = 0.624

The area between 14 and 30 is of 0.624.

The area to the left of 18 is 0.5, the area to the left of 14 is 0.309, the area to the right of 17 is 0.55, the area to the right of 19 is 0.45, and the area between 14 and 30 is 0.624.

Given :

A variable is normally distributed with a mean of 18 and a standard deviation of 8.

a) Use the z score formula in order to determine the area to the left of 18.

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

[tex]\rm Z = \dfrac{18-18}{8}=0[/tex]

For the z = 0 the p-value is 0.5.

Therefore, 0.5 is the area to the left of 18.

b) Use the z score formula in order to determine the area to the left of 14.

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

[tex]\rm Z = \dfrac{14-18}{8}=-0.5[/tex]

For the z = -0.5 the p-value is 0.309.

Therefore, 0.309 is the area to the left of 14.

c) Use the z score formula in order to determine the area to the right of 17.

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

[tex]\rm Z = \dfrac{17-18}{8}=-0.125[/tex]

For the z = -0.125 the p-value is 0.45.

Therefore, the area to the left of 17 is given by:

= 1 - 0.45 = 0.55

d) Use the z score formula in order to determine the area to the right of 19.

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

[tex]\rm Z = \dfrac{19-18}{8}=0.125[/tex]

For the z = 0.125 the p-value is 0.55.

Therefore, the area to the left of 19 is given by:

= 1 - 0.55 = 0.45

e) Use the z score formula in order to determine the area between 14 and 30.

At X = 30 the z score becomes:

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

[tex]\rm Z = \dfrac{30-18}{8}=1.5[/tex]

For the z = 1.5 the p-value is 0.933.

For the z = -0.5 the p-value is 0.309.

Therefore, the area to the left of 14 is given by:

= 0.933 - 0.309

= 0.624

For more information, refer to the link given below:

https://brainly.com/question/13299273

Answer:

D: (-∞,2) (2,∞)

R:(-∞,0),(0,∞)

Step-by-step explanation:

From the graph we can see that the graph is approaching 0 horizontally and 2 vertically but not crossing so we can assumer these are the asymptotes. So the domain goes all the way from -∞ to 2 but does not cross 2 so we have to stop there and create another bracket for 2 to ∞. It is the same process for the range but in the y direction.

Step-by-step explanation:

x+ 2(7-x) = 11

x+14-2x = 11

-x = -3

x = 3

3+ y = 7

y = 4

x + 2(22-x) = 48

x + 44 -2x = 48

-x = 4

x = -4

-4 + y = 22

y = 26

y = 45-x

x + 2(45-x) = 36

x + 90 -2x = 36

-x = 54

x = -54

-54 + y = 45

y = 99

Answer:

1. x=3 and y=4

2. x=−4 and y=26

3. x=54 and y=−9

Step-by-step explanation:

1. x+y=7;x+2y=11

Step: Solvex+y=7for x:

x+y+−y=7+−y(Add -y to both sides)

x=−y+7

Step: Substitute −y+7 for x in x+2y=11:

x+2y=11

−y+7+2y=11

y+7=11(Simplify both sides of the equation)

y+7+−7=11+−7(Add -7 to both sides)

y=4

Step: Substitute 4 for y in x=−y+7:

x=−y+7  

x=−4+7

x=3(Simplify both sides of the equation)

2. x+y=22;x+2y=48

Step: Solve x+y=22 for x:

x+y+−y=22+−y(Add -y to both sides)

x=−y+22

Step: Substitute−y+22 for x in x+2y=48:

x+2y=48

−y+22+2y=48

y+22=48(Simplify both sides of the equation)

y+22+−22=48+−22(Add -22 to both sides)

y=26

Step: Substitute26 for y in x=−y+22:

x=−y+22

x=−26+22

x=−4(Simplify both sides of the equation)

3. x+y=45;x+2y=36

Step: Solve x+y=45 for x:

x+y+−y=45+−y(Add -y to both sides)

x=−y+45

Step: Substitute−y+45 for x in x+2y=36:

x+2y=36

−y+45+2y=36

y+45=36(Simplify both sides of the equation)

y+45+−45=36+−45(Add -45 to both sides)

y=−9

Step: Substitute−9 for y in x=−y+45:

x=−y+45

x=−(−9)+45

x=54(Simplify both sides of the equation)

I hope this helped!