Help me please !!!

Answer:

The height is 0.2003ft

Step-by-step explanation:

Given

[tex]Surface\ Area = 520[/tex]

[tex]Base\ Area = 254.34[/tex]

Required

The height of the cylinder

The base area of the cylinder is:

[tex]Base\ Area = \pi r^2[/tex]

This gives

[tex]254.34 = 3.14 * r^2[/tex]

Divide by 3.14

[tex]81 = r^2[/tex]

Take square root of both sides

[tex]r = \sqrt{81[/tex]

[tex]r = 9[/tex]

The surface area of a cylinder is:

[tex]Surface\ Area = 2\pi rh + 2\pi r^2[/tex]

This gives

[tex]520 = 2*3.14* 9h + 2*3.14* 9^2[/tex]

[tex]520 = 56.52h + 508.68[/tex]

Collect like terms

[tex]56.52h = 520 -508.68[/tex]

[tex]56.52h = 11.32[/tex]

Solve for h

[tex]h = 11.32/56.52[/tex]

[tex]h = 0.2003ft[/tex]

Answer:

Obtuse

Step-by-step explanation:

Believe it's a right triangle (12,16,20) 4 from everything

Step-by-step explanation:

Answer:

{y = x/4 + 2, 3 y = -(3 x)/4 - 6}

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

f(-2) Means the y value when x is -2. Just find x=-2 and trace it until it intersects with the blue line. Then get the y-value of the point

Answer:

Step-by-step explanation:

Answer is a 2/25

Answer:

Step-by-step explanation:

Answer d) is the correct one.

                                opposite side

tan Z is defined as ----------------------- and this is 5/3.

                                 adjacent side

Given : Surface area of a cube can be found with the formula :

⊕   A = 6s²

Given : s = 9 cm

⇒  Surface area of the cube = 6(9 cm)²

⇒  Surface area of the cube = (6 × 81) cm²

⇒  Surface area of the cube = 486 cm²

Answer : 486 cm squared

Answer:

(-1,-1)

Step-by-step explanation:

Answer:

x√5 = x square root 5

Step-by-step explanation:

√35x^5 ÷ √7x^3 = √(35x^5 / 7x^3)

√(35x^5 / 7x^3) = √(5x^5 / x^3)

√(5x^5 / x^3) = √5x^(5-3) = √5x²

√5x² = x√5

Answer:

2 and 5 hundredths

Step-by-step explanation:

3 - 1 = 2

14 hundredths - 9 hundredths = 5 hundredths

hence you get 2 and 5 hundredths

Answer:

1) $42,012

2) 0.34134

3) 0.47725

4) $34,173

5) 0.02275

6) Yes, it is likely

Step-by-step explanation:

We solve the above question using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = $35,512

σ is the population standard deviation = $3250

1) what salary is two standard deviations above the mean (average) salary?

Two standard deviations above the mean, the formula is given as:

μ + 2σ

$35,512 + 2 × $3250

= $42,012

Therefore, the salary that is two standard deviations above the mean (average) salary is $42,012

2) what is the probability when a first-year teacher makes a salary between $35512 and $38762 ?

For x = $35512

z = 35512 - 35512/3250

z = 0

Probability value from Z-Table:

P(x = 35512) = 0.5

For x = $38762

z = 38762 - 35512/3250

z = 1

Probability value from Z-Table:

P(x = 38762) = 0.84134

Hence, the probability when a first-year teacher makes a salary between $35512 and $38762 is calculated as:

P(x = 38762) - P(x = 35512)

0.84134 - 0.5

= 0.34134

3) what's the probability that a first-year teacher makes a salary between $35,512 and $42,012?

For x = $35512

z = 35512 - 35512/3250

z = 0

Probability value from Z-Table:

P(x = 35512) = 0.5

For x = $42012

z = 42012 - 35512/3250

z = 2

Probability value from Z-Table:

P(x = 42012) = 0.97725

Hence, the probability when a first-year teacher makes a salary between $35512 and $42012 is calculated as:

P(x = 42012) - P(x = 35512)

0.97725 - 0.5

= 0.47725

4) what's salary range accounts for 34% of the salaries below the average salary?

We find the z score of the 34th percentile

= -0.412

x is the raw score = ?

μ is the population mean = $35,512

σ is the population standard deviation = $3250

z = -0.412

Hence:

-0.412 = x - 35512/3250

Cross Multiply

-0.412 × 3250 = x - 35512

+ 1339 = x - 35512

x = 35512 - 1339

x = 34173

Therefore, the salary range accounts for 34% of the salaries below the average salary is $34,173

5) what is the probability of a first-year teacher making more than $42,012

More than = Greater than = >

For x >$42012

z = 42012 - 35512/3250

z = 2

Probability value from Z-Table:

P(x<42012) = 0.97725

P(x>42012) = 1 - P(x<42012)

= 0.02275

6).according to the data above, is it likely that a first-year teacher will make more than $46,000?

More than = Greater than = >

For x > $46,000

z = 46000 - 35512/3250

z = 3.22708

Probability value from Z-Table:

P(x<46000) = 0.99937

P(x>46000) = 1 - P(x<46000)

= 0.00062531

From the above calculations, yes, it is likely

Yes

The parametric set of equations for the graph function will be x = 4cos t and y = 7sin t. Then the correct option is A.

The number of the equations which depend on some parametric variable is known as parametric equation.

The graph is given below.

We know that cartesian coordinate to polar coordinate is given as

x = p cos t and y = q sin t

We have p and q will be 4 and 7 respectively. Then we have

x = 4 cos t and y = 7 sin t

Thus, the correct option is A.

More about the parametric equation link is given below.

https://brainly.com/question/9056657

#SPJ2

Answer:

3 9/32

Step-by-step explanation:

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes: 105/32

Applying the fractions formula for multiplication,

Simplifying 105/32, the answer is 3 9/32

Answer:

I think I just posted that last time. Check my timeline

Answer:

2.74feet

Step-by-step explanation:

Since we are not told what to find, we can find the height of the plywood

Given the following

length of ramp = 8feet

angle of elevation = 20degrees

Required

Height of the plywood

Using the SOH CAH TOA identity

Sin theta = opposite/hypotenuse

Sin 20 = H/8

H = 8sin20

H = 8(0.3420)

H = 2.74 feet

Hence the height of the plywood is 2.74feet

Answer:

First, you should convert 1.5kg of sugar to grams.

Second, convert 500 millimeter of cooking oil into liter.

And then you will know the measure of that ingredients that you will buy in a sari-sari store.

Answer:

y = -5/4 x - 3   is the slope-intercept form

5x + 4y = -12    is the standard form

Step-by-step explanation:

Use the point-slope form:  [tex]y - y_{1} = m(x - x_{1})[/tex]

[tex](x_{1}, y_{1})[/tex] = (-4, 2)

y - 2 = -5/4(x + 4)       Multiply by 4 to remove the fraction

4y - 8 = -5(x + 4)

4y - 8 = -5x - 20

4y = -5x - 12

y = -5/4 x - 3   is the slope-intercept form

5x + 4y = -12    is the standard form

Answer:

A

Step-by-step explanation:

18/[tex]\left[(12*2)-(7*3)][/tex]

18/(24-21)

18/3

6

Answer:

Length = 4 feet

Width = 4 feet

Step-by-step explanation:

The perimeter of a rectangle formula = 2L + 2W

Where L = Length

W = Width

The length of a rectangle is 8feet less than the width.

Hence,

L = 8 - W

The perimeter is 64 feet.

Hence,

64 = 2(8 - W) × 2W

64 =( 16 - 2W )2W

64 = -4W² + 32W

4W² - 32W + 64 = 0

Factorise

4W² - 16W - 16W + 64 = 0

4W (W - 4) - 16(W - 4) = 0

W - 4 = 0

W = 4

Width = 4

Solving for L

L = 8 - W

L = 8 - 4

L = 4

Therefore,

Length = 4 feet

Width = 4 feet

Given:

The data set is:

40, 76, 40, 63, 47, 57, 49, 55, 50, 53

To find:

The median of the given data set.

Solution:

We have,

40, 76, 40, 63, 47, 57, 49, 55, 50, 53

Arrange the data values in ascending order.

40, 40, 47, 49, 50, 53, 55, 57, 63, 76

Here, the number of observations is 10 which is an even number. So, the median is:

[tex]Median=\dfrac{(\dfrac{n}{2})\text{th term}+(\dfrac{n}{2}+1)\text{th term}}{2}[/tex]

Putting n=10, we get

[tex]Median=\dfrac{(\dfrac{10}{2})\text{th term}+(\dfrac{10}{2}+1)\text{th term}}{2}[/tex]

[tex]Median=\dfrac{5\text{th term}+6\text{th term}}{2}[/tex]

From the arranged terms, it is clear that the the 5th term is 50 and the 6th term is 53.

[tex]Median=\dfrac{50+53}{2}[/tex]

[tex]Median=\dfrac{103}{2}[/tex]

[tex]Median=51.5[/tex]

Therefore, the median of the given data set is 51.5.

Answer:

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Have a good day :)

Answer: I think D.

Step-by-step explanation:

Answer:

11 sq units

Step-by-step explanation:

(6×4) - ½(6×1 + 4×3 + 2×4)

= 24 - ½(6+12+8)

= 24 - ½(26)

= 24-13

= 11 sq units

Answer:

3 ft

Step-by-step explanation:

You are given the area, and the area formula, and you can set them equal to each other:

pi r^2 = 9 pi

Divide by pi on both sides:

r^2 = 9

Find the square root of both sides to get:

r = 3 feet

Answer:

r = 3 ft.

Step-by-step explanation:

In order to solve this problem, you need to substitute the information given into the equation and solve for r. The problem tells us that the area of the circle is 9π ft². We can use this value and substitute it into the equation.

9π = πr²

⇒ 9 = r²

⇒ 3 = r

Therefore, the radius of the circle is 3 ft.

Answer: Non- Statistical

Step-by-step explanation:

It just isn't

Answer:

Step-by-step explanation:

No it’s not because it’s supposed to be like how much do you weigh or sumthin like that but the answer is no

~tye!

Answer: The percentage increase is 170%

Step-by-step explanation:

Increase= $351 - $130

Increase= 221

Percent increase = 221/ 130

Percent increase= 170%

I'm not sure if I'm right, but I hope that this helped:)

Answer:

170%

Step-by-step explanation:

130 = 100%

65 = 50%

13 = 10%

351 - 130 = 221 (doesnt count)

221 - 130 = 91

91 - 65 = 26

26 - (13 + 13) = 0

100 +  50 + 20 = 170%