I need urgent help with this pls

Answer: 380.1

Step-by-step explanation:

v=h*pi*r^2

v=4*pi*5.5^2

v=380.1

Answer:

B

Step-by-step explanation:

You must multiply 1/4 to 2/8 so you can subtract

Answer:

d. 52.5 million cases

Step-by-step explanation:

from the data output in the question, we have the regression equation to be

log y = -151.281 + 0.076577x

y is the number of hiv cases which is in millions

x is the year of the hiv case

x = 1998

we put the value of x in the regression equation

log y = -151.281 + 0.076577(1998)

log y = -151.281 + 153.000846

log y  = 1.719846

since the result is in log form,

[tex]y=10^{1.791846}[/tex]

y = 52.5 million cases

Answer:

1) Sometimes

2) Always

3) Never

4) Always

5) Sometimes

Step-by-step explanation:

1) Sometimes

2) Always

3) Never

4) Always

5) Sometimes

Answer:

1 unit to the left, 3 units down

Step-by-step explanation:

Take any point: I will take D. In order to get to D', you need to travel 1 unit along the x-axis towards the left, then 3 until along the y-axis downwards. The same applies for any other point.

Answer:

0.2305 ; 0.2495)

Step-by-step explanation:

Sample size, n = 2017

Number who preferred foreign over domestic cars, x = 484

Phat = 484 / 2017 = 0.2399603 = 0.240

The confidence interval :

Phat ± Margin of error

Margin of Error = Zcritical * √(phat(1-phat)/n)

Zcritical at 95% = 1.96

1 - phat = 1 - 0. 240 = 0.76

Margin of Error = 1.96 * √((0.240*0.76)/2017) = 0.0095095

Confidence interval :

Lower boundary : 0.240 - 0.0095 = 0.2305

Upper boundary : 0.240 + 0.0095 = 0.2495

(0.2305 ; 0.2495)

The domain and range of the function on the table are the ones in options B and C.

Domain: {-3, 1, 5, 7}

Range: {2, 4, 5, 9}

For a function y = f(x), we define the domain as the set of the inputs, this is, the set of the possible values of x.

On the other hand, the range is the set of the outputs, this is, the set of the possible values of y.

Then the domain is just the set of the values of x on the table:

Domain: {-3, 1, 5, 7}

And the range is the set of the values of y on the table:

Range: {2, 4, 5, 9}

Then the correct options are C and B.

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The maturity value of the loan based on the calculation is $1227.72

From the information, single payment loan for $1200 repay in 120days interest rate is 7% and we want to calculate the maturity value of the loan.

It should be noted that the interest will be calculated as:

= Principal × Rate × Time

= 1200 × 7% × (120/360)

= 1200 × 0.07 × 0.33

= $27.72

Maturity amount = $1200 + $27.72

Maturity amount = $1227.72.

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Answer:

C

Step-by-step explanation:

you do twelve divided by 423 to get your answer.

Answer:

16

since it's the least that can be divided by both

Answer:

a) 16

Step-by-step explanation:

Determine the least common multiple (LCM) of 48 and 16.

A. 16

Answer:

The last graph with the point (2,4).

Step-by-step explanation:

Make a table of the values, then graph.

Example:

X: -2, -1, 0, 1, 2

Y: [tex]\frac{1}{64}[/tex], [tex]\frac{1}{16}[/tex], [tex]\frac{1}{4}[/tex], 1, 4

Answer:

57/100

Step-by-step explanation:

Answer:

a rectangle

Step-by-step explanation:

Answer:

Square

Step-by-step explanation:

If Ryan spots an airplane on radar that is currently approaching in a straight line, and that will fly directly overhead. The  distance the plane traveled from point A to point B is: 13,027ft .

Constant altitude =6300 feet

Angle of elevation =15 to the plane at point A

An angle of elevation =31 to the plane at point B.

So,

Tan 15° = 6300/ON

ON =23,511.92

Tan 31° =6300/OB

OB = 10,484.96

So,

AB =23,511.92 - 10,484.06

AB = 13,026.96

AB = 13,027ft (Approximately)

Therefore the distance is 13,027ft.

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Answer:

8.2 m

Step-by-step explanation:

To solve the problem, we use pythagorean theorem, which is a^2 + b^2 = c^2. We are given both the legs, so we can substitute them in:

8^2 + 2^2 = c^2

And simplify to get:

c^2 = 64 + 4

c^2 = 68

Now, we find the square root of both sides to isolate c:

c = √68

√68 is approximately 8.24621125124

This rounded to the nearest tenth is 8.2 m

Answer:

Please find the complete question and its solution in the below section.

Step-by-step explanation:

Follows are the null and alternative Hypothesis:

Null Hypothesis [tex]H_0: \mu = 2.68[/tex]

Alternative Hypothesis[tex]H_a: \mu < 2.68[/tex]

Answer:

1 hour

Step-by-step explanation:

Each graph shown lasts for 1/2 hour / 30 minutes

Answer:

16

Step-by-step explanation:

(80x20)/100 = 16

(this is wrong, i misunderstood the question)

The graph of the system of linear inequalities 2x + y < 1 and y ≥ 12x + 2 is attached.

An equation shows how two or more numbers and variables are related to each other.

The standard linear equation is:

y = mx + b

Where m is the rate of change and b is the y intercept

Inequalities is used for the non equal comparison of numbers and variables.

The graph of 2x + y < 1 and y ≥ 12x + 2 is attached.

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Answer:

12 yds

Step-by-step explanation:

I just answered it. :)))

Answer:

option C

Step-by-step explanation:

The answer is 12 yd. All you muxt do is find the volume.

Answer:

12

Step-by-step explanation:

4,5

6,13

12,24

So I belive it C

They will walk 6 laps and run 10 laps for a total of 16 miles considering each lap is of 1 mile.

The mile is a customary unit of measurement in both the United States and the United Kingdom that is based on the older English unit of length equal to 5,280 English feet, or 1,760 yards. It is also referred to as the international mile or statute mile to distinguish it from other miles.

In 1959, the statute mile was formally redefined with respect to SI units as exactly 1,609.344 metres, establishing a standard between the British Commonwealth and the United States.

With qualifications, mile is also used to describe or translate a wide range of units derived from or approximately comparable to the Roman mile, such as the nautical mile (now exactly 1.852 km), the Italian mile (roughly 1.852 km), and the Chinese mile (now 500 m exactly).

6 laps + 10 laps = 16 laps

1 mile each laps = 16 miles

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Answer:

x = -0.5

Step-by-step explanation:

15- 6(x+1) = 12

> 15- 6x -6 = 12

>15 - 6x = 18

>-6x = 3

>x = -0.5

Answer:

1/2

Step-by-step explanation:

15-6(x+1)=12

15-6x-6=12

-6x=12+6-15

-6x=3

x=-1/2

The area of garden will be 81 feet².

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

Each side of the garden = 9 feet

We know that;

⇒ Area of square = Side²

Here, Each side of the garden = 9 feet

Hence, The area of garden = 9²

                                           = 81 feet²

Thus, The area of garden = 81 feet²

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Answer: A

Step-by-step explanation: angle LJK says x subtract 8 degrees and since angle LJH is  bigger than angle LJK the one over 90 degrees is the only logical one

Answer:

A. x = 94

Step-by-step explanation:

Add up angles to equal 180 because that is how much a line measures.

x + (x - 8) = 180

Simplify.

2x -8 = 180

Solve for x.

2x -8 = 180

+8 = +8

2x = 188

2 = 2

x = 94