Please help. I will give brainliest.

Answer:

D

Step-by-step explanation:

Answer:....

Step-by-step explanation:

first we need to find the base of the triangle, so the total is 20, they also give us 12, so we subtract 20-12=8 now divide. 8/2=4. Now we use the 4 and the 60. We use SOH-CAH-TOA, they give us the base now we need to find AB which is the hypotenuse. So we take out the TOA, and the 4 is the adjacent so we take out the SOH, we have CAH now, so we use cos. Now equation time....

[tex]cos60=\frac{4}{x}[/tex]   since x is the bottom we switch [tex]\frac{4}{cos60}[/tex], which equals 8. AB=8.

Now to find the perimeter. We still use the 4 to find the hypotenuse so we  can find the outside side. For this one they tell us to use 45, so now lets see what method we use. SOH-CAH-TOA. We need the hypotenuse and they give us the adjacent, so we use cos again. Now setting up the equation...

[tex]cos45=\frac{4}{x}[/tex]    x is at the bottom again to we switch.

[tex]\frac{4}{cos45}[/tex]   which equals to 5.657 or you can round it. Now we add everything.

20+12+5.657+5.657= 45.314 or you can round it to 45.

Answer: 528,000

Step-by-step explanation: to easy

Hey there! Hope this helps. The answer is correct as I also took the quiz.

Answer:

n = 4

Step-by-step explanation:

Combine like terms and solve.

n + n + 2 = 10

2n + 2 = 10

2n = 8

n = 4

Answer:

100

Step-by-step explanation:

x-value is width and y-value is height. Therefore if you multiply the height x width you get the constant.

The value of the constant in the equation is 100.

Graph is a mathematical representation of a network and it describes the relationship between lines and points. A graph consists of some points and lines between them. The length of the lines and position of the points do not matter.

Given that, Height=Constant/Width

1) (4, 25)

Here, Height = 25 and Width = 4

25 = Constant/4

Constant = 100

2) (5, 20)

Here, Height = 20 and Width = 5

20 = Constant/5

Constant = 100

3) (10, 10)

Here, Height = 10 and Width = 10

10 = Constant/10

Constant = 100

4) (20, 5)

Here, Height = 20 and Width = 5

20 = Constant/5

Constant = 100

Therefore, the value of the constant in the equation is 100.

To learn more about the graph visit:

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Answer:

Number of paints to buy, n = The total area of the walls, W / Area covered by a can of paint, p

Step-by-step explanation:

Let's

p = area covered by a can of paint

W = the total area of the walls

n = number of paint cans to buy

Number of paints to buy, n = The total area of the walls, W / Area covered by a can of paint, p

That is,

n = W / p

If the total area of the walls = 100 m²

A can of paint covers 5 m². Find the number of cans of paint needed?

Number of paints to buy, n = The total area of the walls, W / Area covered by a can of paint, p

n = W / p

= 100 m² / 5 m²

n = 20 cans of paint

Answer:

i think it's 15%

Step-by-step explanation:

Answer:

PT 1: C

PT 2: B

Step-by-step explanation:

In order to find the volume of a cone use equation

[tex]V=\pi r^2\frac{h}{3}[/tex]

To find the volume of a cylinder use equation

[tex]V=\pi r^2h[/tex]

Answer:

202 cm

Step-by-step explanation:

You need to add the areas of the faces, and since it is a cuboid opposite faces are the same. If you do 2(5x9) + 2(4x9) + 2(4x5) you will get your answer.

Answer:

Hello Love! Answer: 202

Step-by-step explanation:

First off we have to do all 6 faces remember that each face will have a matching face that goes along with it so Imma start with the front face that would be 9 x 5 = 45 same for back face

Then ill do sides that will be 5 x 4 = 20 for both left and right sides Then ill do top and bottom

thats 4 x 9 = 36 Now ill add all of these up.

So 45 + 45 + 20 + 20 + 36 + 36 and that = 202

Answer: 8H=T

Step-by-step explanation:

8 is dependant on the hours so you put it together. Your independent

value is T since it is by itself. So your answer becomes.

8H=T

2 waffles =3$

2x4=8 waffles (How many waffles Sage wants)

3 + 3 + 3 + 3= 12  (or 3x4)

(2) (4) (6) (8)

12$ at I Scream

4 waffles= 4$

4 waffles x2=8$

8$ at Scoopz

12-8= 4

$11.30

Step-by-step explanation:

First, convert the 20% to an actual number that can be used in a calculation.

For percents, this is always done by simply dividing the percent (in this case 20%) by 100%.

So, the conversational term "20%" becomes 20% / 100% = 0.20 in terms of a real mathematical number.

Second, you need to find out what 20% of your $56.50 meal cost is. This is always done by multiplying 0.20 by $56.50, or

0.20 x $56.50 = $11.30

So, the amount of tip you are going to leave is $11.30.

This makes the total cost of your meal (to write on your charge slip or other payment)

$56.50 + $11.30 = $67.80.

Answer:

18/25

Step-by-step explanation:

Total number of students = 23+14+10+3 = 50.

14 out of 50 are playing sport and taking a foreign language.

So the answer is (50 - 14) / 50

= 36/50

= 18/25.

=========================================================

Explanation:

The wording your teacher provided is a bit strange in my opinion. Though I think they are referring to the people who aren't taking both classes at the same time, but they could be taking exactly one class.

We have 23+14+10+3 = 50 students total and 14 of them are taking both classes. So 50-14 = 36 students are taking exactly one class, or they are taking neither of the classes.

This leads to a probability of 36/50 = (2*18)/(2*25) = 18/25 which points to choice B as the answer.

------------------

Side note:

If it asked "what is the probability that a student is not taking a sport AND not taking a foreign language?", then the probability would be 3/50 because there are 3 people not taking either class out of the 50 total. So the keyword "and" is the change made here, instead of the "or".

Answer:

A circle is a round shaped figure that has no corners or edges. In geometry, a circle can be defined as a closed, two-dimensional curved shape.

The distance from the center to the circumference of a circle

The diameter is the length of the line through the center that touches two points on the edge of the circle.

The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.

In plane geometry, a chord is the line segment joining two points on a curve. The term is often used to describe a line segment whose ends lie on a circle.

A line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. The diameter is twice the size of the radius. A line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. A circle is the same as 360°.

A line that intersects two or more points on a curve. (From the Latin secare "to cut")

The length of the side opposite the angle divided by the length of the adjacent side.

A line that intersects a circle in exactly one point is called a tangent and the point where the intersection occurs is called the point of tangency. The tangent is always perpendicular to the radius drawn to the point of tangency. A secant is a line that intersects a circle in exactly two points.

Common tangents to two circles may be internal or external. A common internal tangent intersects the line segment connecting the centers of the two circles whereas a common external tangent does not.

Step-by-step explanation:

they are in order! tell me if i made a mistake:)

Answer:

32km

Step-by-step explanation:

if you draw the diagram it looks like a right angled triangle then indicate the values and use the Pythagoras theorem to solve

Answer:

I believe the answer would be -4 1/2.

Answer:

1/14 of 400 batteries = 56 batteries

Step-by-step explanation:

[tex]400 \times 0.14[/tex]

Answer:

Actual: 28.57

Rounded: 29

Step-by-step explanation:

400/14 = 28.57

Round to nearest whole number: 29

Correct on A P E X

Answer:

The first option

Step-by-step explanation:

Im smart

Answer:

a. 9,416.9 mm²

Step-by-step explanation:

Given:

Circumference of a sphere = 172 mm

Required:

Surface area of the sphere rounded to nearest tenth

Solution:

First, we need to determine the radius of the sphere since we know the circumference.

Circumference = 2πr

Plug in the value of the circumference

172 = 2*π*r

Divide both sides by 2π

172/2π = r

86/π = r

r ≈ 86/π

Next, find the surface area of the sphere

Surface area = 4πr²

plug in the value of r

Surface area = 4*π*(86/π)²

= 4*π*86²/π²

= 4*7,396/π

= 9,416.87967

≈ 9,416.9 mm² (nearest tenth)

First start solving for x to find y.

Plug in y= 3/2x-2

4x-2(3/2x-2)=8

Once you find x, plug in

4(4)-2y=8

Hopefully the rest is self explanatory with the evidence I provided.

I hope this helped!

Answer:

a

Step-by-step explanation:

aaaaaaaaaabbbbbbbcccccc

Answer:

x = - [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

Given

14x + 6 = 5x + 3 ( subtract 5x from both sides )

9x + 6 = 3 ( subtract 6 from both sides )

9x = - 3 ( divide both sides by 9

x = [tex]\frac{-3}{9}[/tex] = - [tex]\frac{1}{3}[/tex]

Answer:

She would use the mean.

Step-by-step explanation:

$ -50

Step-by-step explanation:

they gain no profit since they spent more money than they had

Answer:

$-50 dollars

Step-by-step explanation:

let me know if I'm wrong

Answer:

x = 4

Step-by-step explanation:

90 + 70 + 5x = 180

160 + 5x = 180

180 - 160 = 20

20 / 5 = 4

Answer: 6

Step-by-step explanation:

By tallying up the x's in total in 3/8 and 1/2, it would be 6.

It is extremely significant for mathematical operations since it solves a problem with the 8421 BCD code that arises when adding two decimal digits whose total is more than 9.

In contrast to standard non-biased BCD or binary positional number systems, excess-3 arithmetic employs a distinct method.

An Excess Code also written as XS3 is a code that is non-weighted. It is used to depict express decimal numbers.

Hence, in contrast to standard non-biased BCD or binary positional number systems, excess-3 arithmetic employs a distinct method.

Learn more about Excess-3 Code at;
https://brainly.com/question/1511370
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Answer:

46.7 minutes to run 7 miles

Step-by-step explanation:

3 miles in 20 minutes boils down to the unit rate 3/20 miles/minute.

Multiply 7 miles by the unit rate (20/3 minutes/mile):

(7)(20)

---------- minutes, or approximately 46.7 minutes to run 7 miles

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