help please i’m stuck lol

Problem 11

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Work Shown:

The surface area of a 3D sphere is 4pi*r^2. So a hemisphere has surface area 2pi*r^2 since we cut the surface area in half.

Plug in r = 6 (half of the diameter 12) and we get 2pi*r^2 = 2pi*6^2 = 72pi

Now consider the circle with radius r = 6. Its area is pi*r^2 = pi*6^2 = 36pi

Add the two areas and we get 72pi+36pi = 108pi

Lastly, use your calculator to get 108pi = 108*3.1415926535898 = 339.292006587699 which rounds to 339

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Problem 12

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Explanation:

Look at where the "0" in the bottom sliding portion lines up with the number scale above. That "0" is between 19 and 20 mm. So you could argue that 19.2 and 19.5 are both valid answers, but I think 19.5 is the better answer since the tickmark seems to be right in the middle (more or less).

Step-by-step explanation:

surface area of hemisphere =3πr²

=3*3.14(6)²

=339.12m²

diameter of pipe= 19.5mm

Answer:

1c

2b

Step-by-step explanation:  i think im not absolutly

shure

Answer:

The answer is below

Step-by-step explanation:

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

If a point A(x, y) is reflected across the x axis, the new location is at A'(x, -y).

If a point A(x, y) is rotated 90° clockwise about the origin, the new location is at A'(y, -x).

If a point A(x, y) is translated a units left and b units up, the new location is at A'(x-a, y+b).

From the image attached, the location of triangle DEF is D(2, 6), E(2,3) and F(5, 3).

If △DEF is reflected across the x-axis, the resulting image △D'E'F' is at D'(2, -6), E'(2, -3) and F'(5, -3).

If △D'E'F' is rotated 90° clockwise about the origin, the resulting image △D''E''F'' is at D''(-6, -2), E''(-3, -2) and F''(-3, -5).

If △D''E''F'' is translated by (x,y)→(x-2,y+2), the resulting image △D'''E'''F''' is at D'''(-8, 0), E'''(-5, 0) and F'''(-5, -3).

Answer:

18 and 24

Step-by-step explanation:

HCF(18,24) = 6
LCM(18,24) = 72

Answer: A, B, E

Step-by-step explanation:

Because I know this

Answer:

x is greater than zero c is correct

Answer:

f(-1) = -8

f(1) = -12

Step-by-step explanation:

-1 and 1 are inputs to the function f which is shown on the graph.

The inputs are on the x-axis so when x = -1, the graph shows that the function f at -1 is approximately -8.

When x = 1, the function f is approximately -12.

Answer:

i. The distance between the balloon and canoe is 16.8 meters.

ii. The situation can be represented by: -12 + d = 4.8

Step-by-step explanation:

Let the surface of the lake be zero. Then any position above it is taken to be positive, while any position below is taken as negative.

So that,

the balloon's vertical position = 12 meters

the sunken canoe's position = -4.8 meters

Given that the distance between the balloon and the canoes is d, then:

d = balloon's position - canoe's position

  = 12 - (-4.8)

  = 12 + 4.8

d  = 16.8

The distance between the balloon and canoe is 16.8 meters.

Thus,

d = 12 -(-4.8)

d = 12 + 4.8

-12 + d = 4.8

The situation can be represented by: -12 + d = 4.8

Answer:

yes because the function changes when you do the tunction

Answer:

whats the picture at

Step-by-step explanation:

Answer:

5x+4

Step-by-step explanation:

Answer:

2 eggs

Step-by-step explanation:

Answer: 1 gallon

Step-by-step explanation:

Hi there!

Using the equation (12*18)-(7*3), where 12*18 is the area of the wall, 7*3 is the area of the door not being painted, you are left with 196 square ft. of wall. further dividing 196/200 is 0.98, meaning that Mr. Smith will only need one gallon of paint for his wall.

[(12*18)-(7*3)]/200

(215-21)/200

196/200

0.98

the answer is:

-58/105

i hope this was helpful

Answer:

2 3/4

Step-by-step explanation:

this is the answer

The required solution of the given simultaneous equations are x = 2, 3 and y = 3,9.

In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.

Now the given simultaneous equations are,

y = x^2    ...(i)

y = x + 6  .....(ii)

Equating (i) and (ii) we get,

x^2 = x + 6

or, x^2 - x - 6 = 0

Solving we get,

x^2 - 3x - 2x - 6 = 0

⇒ x(x - 3) -2(x - 3) = 0

⇒ (x - 2)(x - 3) = 0

So, x = 2, 3

Putting x = 2, 3 in equation (i) we get,

y = 2^2

⇒ y = 4

and,

y = 3^2

⇒ y = 9

Thus, y = 3,9

Thus the required solution of the given simultaneous equations are x = 2, 3 and y = 3,9.

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Answer:

10.5%

Step-by-step explanation:

2/19=.1052... = 10.52% round to 10.5%

Answer:

10.5%

Step-by-step explanation:

2/19=10.52=10.5

Answer:

(f - g)(x) = 4x - 4

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

f(x) = 3x

g(x) = -x + 4

(f - g)(x) is f(x) - g(x)

Step 2: Find

9514 1404 393

Answer:

  All positive integers

Step-by-step explanation:

The domain of the variable in the cost function is the set of values it might reasonably assume. Since we count movies using integers starting at 1, the reasonable domain is ...

  All positive integers

__

Additional comment

We know there is an upper limit. That limit is the number of movies offered such that the summer pass price is valid. We suspect it will be less than two or three hundred. For the purpose here, the reasonable choice is "positive integers."

Answer:

x=10

Step-by-step explanation:

Because BC is a mid segment

Answer:

10

Step-by-step explanation:

These are similar triangles, which means that the ratio between 16 to 8 will equal x+10 to x. This could be written out as 16/8 = x+10/x. 16/8 is 2, which means that x+10 is twice the amount of x. We can write this out as 2x = x+10. We can then simplify this and get x = 10

Answer:

No, it could be caused by seocnd hand smokeing also.

Step-by-step explanation:

Answer:

False.

Step-by-step explanation:

Tobacco use not only affects the person using it but also those around them. Secondhand smoke is the smoke that is exhaled by a smoker or that comes from the burning end of a cigarette, cigar, or pipe. Secondhand smoke contains more than 7,000 chemicals, including hundreds that are toxic and at least 70 that can cause cancer. Breathing in secondhand smoke can lead to a range of health problems, especially in children and non-smoking adults. These can include lung cancer, heart disease, stroke, respiratory infections, and asthma. Additionally, exposure to secondhand smoke during pregnancy can cause low birth weight, premature birth, and sudden infant death syndrome (SIDS). Therefore, it is important to create smoke-free environments to protect the health of everyone, including non-smokers.

Base is 2 times A over height= [tex](base)=\frac{2Area}{height}[/tex].

Area is the amount of space occupied by a two-dimensional figure. In other words, it is the quantity that measures the number of unit squares that cover the surface of a closed figure.

Area of a triangle is given by the formula;

                               [tex]A=\frac{1}{2} base * height[/tex]

Now, we need to solve for b. We multiply the right side, cross multiply,  and follow rules of algebra to isolate b. Shown below:

                         [tex]A=\frac{1}{2} base*height\\A=\frac{bh}{2} \\2A=bh\\b(base)=\frac{2A}{h}[/tex]

Thus, Base is 2 times A over height= [tex](base)=\frac{2Area}{height}[/tex].

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Answer:

The answer is B

Step-by-step explanation:

Answer:

228.947

Step-by-step explanation:

Answer:

457.894

Step-by-step explanation:

"What is 457.894 rounded to 2 decimal places?" is the same as asking, "What is 457.894 rounded to two decimal points?" or "How to round 457.894 to two decimal places."

The main point is that you want to round 457.894 to two digits or places after the decimal point. Thus, we want to eliminate the last digit in 457.894. To eliminate the last digit in 457.894, we use the following Two Decimal Places Rules to get the answer:

Two Decimal Places Rule #1: If the last digit in 457.894 is less than 5, then remove the last digit.

Two Decimal Places Rule #2: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is less than 9, then remove the last digit and add 1 to the second to the last digit.

Two Decimal Places Rule #3: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is 9, and the third to the last digit is less than 9, then remove the last digit, make the second to last digit 0, and add 1 to the number to the third to the last digit.

Two Decimal Places Rule #4: If the last digit in 457.894 is 5 or more and the second to the last digit is 9, and the third to the last digit is 9, then add 1 to the number on the left side of the decimal point and make the right side of the decimal point 00.

When rounding 457.894 to two decimal places we use Two Decimal Places Rule #1. Therefore, the answer to "What is 457.894 rounded to 2 decimal places?" is:

Answer: que

Step-by-step explanation:

no se

Answer:

Buena saber :)

Step-by-step explanation:

Answer:

Please check the explanation.

Step-by-step explanation:

We need to write 35% as a fraction, percent, and a decimal.

35% as a fraction:

All we need is to divide 35 by 100 as 35 is basically the 35th part of 100 parts.

Thus, 35% as a fraction would be: 35/100

35% as a decimal:

All we need is to divide 35 by 100 and calculate the result such as:

35/100 = 0.35

Thus, 35% as a decimal would be:  0.35

35% as a percent:

35% is already mentioned as a percent.  

Thus, 35% as a percent would be:  35%

The domain of the circle is [-4, 10]

The circle equation is given as:

(x - 3)^2 + (y + 1)^2 = 49

Express 49 as 7^2

So, we have

(x - 3)^2 + (y + 1)^2 = 7^2

The general circle equation is

(x - a)^2 + (y - b)^2 = r^2

Where the domain is

Domain = [a ± r]

So, we have

Domain = [3 ± 7]

Evaluate

Domain = [3 - 7, 3 + 7]

This gives

Domain = [-4, 10]

Hence, the domain of the circle is [-4, 10]

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Answer:

None of them is 1 as a decimal. 1 as a decimal is 0.01

Step-by-step explanation:

P.S Can I have brainliest?

Answer:

the answer its A=h b/2

Step-by-step explanation: