Mathematics College

HOW LONG IS PQ?
special right triangles khan academy

HOW LONG IS PQ?special Right Triangles Khan Academy

Answers

Answer 1

Answer:

Step-by-step explanation:

The side opposite to the angle 30 degree in right triangle is half of hypothenuse.

HOW LONG IS PQ?special Right Triangles Khan Academy

Related Questions


Kacie has a bag of
pretzels. She eats 1/3 of
the bag and gives 1/2 of
the bag to her brother.
How much of the bag
does she have left?

Answers

Answer: .

Step-by-step explanation:

A retiree invests $7,000 in a savings plan that pays 7% per year. What will the account balance be at
the end of the first year?

Answers

Answer:

$6510

Step-by-step explanation:

First thing that should come to mind is: What is 7% of $7000?

Well, if you don't know how to find a percent of something, this is the formula you use:

7000 x 0.07 = 490.

In the first year, they will receive 490 out of the 7000 they've invested.

7000 - 490 = 6510.

Therefore, the account balance at the end of the first year will be 6510.

The account balance at the end of first year will be equal to $6510.

What do you mean by percentage ?

Percentage is the relative value indicating one hundredth part of any quantity.

It is given that a retiree invests $7000 in a savings plan which pays 7% per year.  So , it meant that we need to calculate that what is the value 7% of $7000.

So , 7% of $7000 is :

= 7000 × [tex]\frac{7}{100}[/tex]

= $490

It is known that this amount is paid as per plan per year. So, to find out the account balance at the end of the first year , we need to subtract the invested amount to the amount per year at 7%.

So , the account balance at the end of first year will be :

= 7000 - 490

= $6510

Therefore , the account balance at the end of first year will be equal to $6510.

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Angle ACB and angle ECD are
angles.
vertical
complementary
supplementary
none of the above

Answers

Answer:

vertical

Step-by-step explanation:

When two lines intersect, 4 angles are formed. Two non-adjacent angles are called vertical angles.

Answer: vertical

Answer:

Vertical

Step-by-step explanation:

Just did the lesson and checked the answer key :D

Determine the equation of the graph, and select the correct answer below.

Answers

9514 1404 393

Answer:

  (b)  y = (x +4)² -1

Step-by-step explanation:

The vertex form of the equation of a parabola is ...

  y = a(x -h)² +k . . . . . . . . . vertex (h, k); scale factor 'a'

The graph shows the vertex is (h, k) = (-4, -1) and a=1. Putting these values into the form, we have ...

  y =(x +4)² -1

I just need help finding out the missing sides

Answers

DON'T OPEN IT, IT'S A VIRUS!!

7 cameras cost $308. The cost of each camera is the same. What is the cost of each camera?

Answers

Answer:

$44

Step-by-step explanation:

Hello!

It said that 7 cameras cost $308, right?

If each camera costs the same, it means that 7 cameras with the same value equal $308.
If we use this in an equation, and if x is a variable we want to solve, it would be:

7x = 308.

If 7x = 308, it would be

308/7 =

44.

So, $44 is the answer.

Explain what you would do first to simplify the expression below. Justify why, and then state the result of performing this step 27.27 4+2​

Answers

Answer:

33.27

Step-by-step explanation:

27.27 + (4 + 2)

You always perform the parenthesis first.

27.27 + 6

Then you add 6.

33.27

The list shows the number of pages in various novels: 286,295,307,241,396,368 what is the range

Answers

Answer:

155

Step-by-step explanation:

You must first subtract the lowest number (241) from the highest number (396) Then you get 155! I hope this helps!

I need help on my tips for math could someone be nice and help

Answers

Answer:

A im pretty sure its a try it and let me know

What is the volume of a rectangular crystal with a length (1) of 2.2 cm, a width (w) of 2 cm, and a height
(h) of 1.8 cm?

Answers

Answer:

7.92 cm^3

Step-by-step explanation:

To find volume all you have to do is multiply the length, width, and height. The answer would be: l * w * h = 2.2 * 2 * 1.8 = 7.92 cm^3.

Ashley is buying items for her dog Lance. She buys a dog collar for $6.50 and wants to buy dog food at $4 a pound. If she wants to spend exactly $22.50, how many pounds of dog food can she afford? Which equation model this situation? *
1 point
4lbs : 6.50x + 22.50 = 4
5lbs : 4x + 6.50 = 22.50
4lbs : 4x + 6.50 = 22.50
4lbs : 4 + 6.50x = 22.50

Answers

Answer:

4 lbs : 4x + 6.50 = 22.50

Subtract 6.50 from 22.50 and divide the remaining number by 4.

In the figure above, if l ll m and r ll s, what is the value of x?
A) 65
B) 80
C) 85
D) 95
E) 115
Check the photo and please show the steps

Answers

Answer:

C x= 85°

Step-by-step explanation:

x+ 60° + 35° =180°

x= 180° - 60° - 35°

x= 85°

GUYS HELP!! What’s an equation that represents the line on the graph?

Answers

Answer:

Hey Mate...

Step-by-step explanation:

All that the slope-intercept form (the equation to describe linear equations) is, is an equation (y=mx+b) where m (the number that multiples x) is the slope and b (the number that is not multiplying a variable on the right-hand side of the equation) is the y-intercept.

Bananas cost $ 0.59 per pound.Write an equation that could be used to find the total cost,y,of x pounds of bananas.​

Answers

I think it is 5 Bc I do and if you got to know so bad

Answer:

Step-by-step explanation:

5

PLEASE HELP ME!!!! PLEASE HELP QUICK ILL GIVE U 73 POINTS PLS HELP

Answers

Answer:

3

Step-by-step explanation:

In this problem we need to kind of write the picture into an equation so the first thing we see are 4 xs on the far left-hand side this is representing "4x" then we see 5 - blocks on the right which represents "-5" because we have 5 minuses then on the other side we see 7 + blocks which represent just "7". After we identify everything in the picture we can write an equation so 4x -5 = 7. Then we solve so we need to separate x on one side and all the other numbers to the other to do that we can move the -5 to the side the 7 is on and because of math when we move a number to another side of the equation we have to switch the sign it has so if it was -5 then on the other side it would be 5 then we add 7 to 5 which would equal 12. Then we are left with 4x = 12 and to keep x on its own side we need to divide 4 from the other side because it is  multiplying on the x side and again we need to switch the sign. then we are left with x=3. Hope this helps!

What is the volume of the figure? ​

Answers

The volume of a figure is the number of cubes required to fill it completely, like blocks in a box. Volume of a cube = side times side times side. Since each side of a square is the same, it can simply be the length of one side cubed

Which equation matches the graph?

A) y=(x-1)(x-4)
B) y=(x+1)(x+4)
C) y=(x-1)(x+4)
D) y=(x+1)(x-4)

Answers

B as when you look at the X coordinate line you can see how the parabola goes between when x is both -1 and when it is -4.

A box is being packed with cubes that measure 1 cubic foot. What is the volume of the box in cubic feet

Answers

Answer:

81 cubic foot

Step-by-step explanation:

It is given that the box is packed with cubes whose side is 1 foot. So the volume of one cube is 1 cubic foot.

Now from the figure, we can see that :

Number of cubes fitting the box across its length = 9 cubes

Number of cubes fitting the box across its width = 3 cubes

Number of cubes fitting the box across its height = 3 cubes

And each of these cubes measures 1 x 1 x 1 cubic foot

So the volume of the box can be found out by:

Volume = length x width x height

             = 9 x 3 x 3

             = 81 cubic foot

Therefore volume of the box is 81 cubic foot.

PLS HELP !!!

Fiona spent 50 minutes to complete her homework. She spent 30 minutes on her
math assignment and 20 minutes on her science assignment. What fraction of time
did Fiona spend on her math assignment??

Answers

The answer you’re looking for is 3/10

Answer:

3/5 of her time

Step-by-step explanation:

She spent 30 minutes out of 50 minutes on her math assignment. So, we can write this fraction:

30 minutes / 50 minutes

Divide both the numerator (top of the fraction) and denominator (bottom of the fraction) by 10 minutes to get

3 / 5

So, the answer is 3/5 of her time.

21/35 es equivalente a

Answers

Es equivalente a 3/5

what is the area of this quadrilateral? plz help

Answers

Answer:

D. 12 square feet

Step-by-step explanation:

Multiply 3 × 4 to get 12 and divide by 2 for the top triangle. Then, multiply 3 × 4 for the bottom triangle and get 12 and divide by 2. Add 6+6 to get 12

Solve each division problem, and classify it based on its quotient.

Answers

Answer:

show the image so i can answer

plz put the image  so i can see cus there are two types

You can complete one-sixth of a task in an hour. Your friend can complete one-sixth of the same task in an hour. How long will it take to complete the task if you work together? ​

Answers

Answer:

3 hours

Step-by-step explanation:

there's 6 parts and it takes them both an hour for each part so alone they would take 6 hours but divide that by 2 and it's 3 hours

Answer: I would say 3 hours if you worked seperatly from each other to complete one task

Step-by-step explanation:

The price of an item has been reduced by 35%. The original price was $60. What is the price of the item now ?

Answers

Answer:

the answer is $39.00

Step-by-step explanation:

Estimate 2.21x5.1 i guess need help please I don’t want to fell this class

Answers

Answer:

10

Step-by-step explanation:

Im guessing since you have to estimate it then u have to round them up. So if you move both of their points by 2 spaces (divide both by 100) They will be 221x510.

Round them up to 200x500.

That woule be 100 000. Then at the end just dont forget to divide by 10000.

Hope this was helpful

answer: 11.271 or 11.28

explanation:

Helga buys a $64,987 car from a car dealership. The charge for freight is $2300. The car has an air conditioner and Helga will be getting a new licence plate, vehicle permit, and a licence plate registration sticker. What is the total cost of the purchase of the car?

Answers

The total cost of the car purchase, including the base price, freight charge, air conditioner cost, and license-related fees, is $68,937.

To calculate the total cost of the car purchase, we need to consider the base price of the car, the charge for freight, and the additional costs for the air conditioner and license-related fees.

Given:

Base price of the car: $64,987

Freight charge: $2,300

Additional costs:

Air conditioner cost: Let's assume it's $500 (not explicitly mentioned in the given information)

License-related fees: Let's assume it's $150 (not explicitly mentioned in the given information)

To calculate the total cost, we add up all the costs involved:

Total cost = Base price + Freight charge + Air conditioner cost + License-related fees

Total cost = $64,987 + $2,300 + $500 + $150

Total cost = $68,937

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Estelle swims for the Shorewood Sharks swim team, Last season, she kept track of how far
she swam at each practice.
Distance swam (m)
+
1,000
1,400
1,800
2,200
2,600
3,000
What was the shortest distance Estelle swam at practice?
meters

Answers

Answer:1,400

Step-by-step explanation:

The shortest distance Estelle swam at practice is 200 meters if the Estelle swims for the Shorewood Sharks swim team

What is the box and whisker plot?

A box and whisker plot is a method of abstracting a set of data that is approximated using an interval scale. It's also known as a box plot. These are primarily used to interpret data.

We have box plot data:

1,000    1,400    1,800    2,200    2,600    3,000

From the box plot:

The shortest distance Estelle swam at practice is given by:

= 1800—(1400+1800)/2

= 1800 – 1600

= 200 meter

Thus, the shortest distance Estelle swam at practice is 200 meters if the Estelle swims for the Shorewood Sharks swim team

Learn more about the box and whisker plot here:

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Can someone give the answer to question 2

Answers

Step-by-step explanation:

try doing a2+b2=c2 it will help

Which of the following is equal to 5 1/3

Answers

Answer:

C

Step-by-step explanation:

The 3 would go on the outside.

The answer will most likely be c


The human body is made up of about 9.3% hydrogen. What is the amount of hydrogen contained in a person who weighs 140 pounds? Round you answer to the hundredths place

Answers

Answer:

We know that for a human body 9.3% of its total mass is hydrogen.

Now we have a person with a mass of 140 lb.

Then we have that the 100% of the mass is 140lb, the 9.3% of this is hydrogen.

We can write:

9.3% = X

100% = 140lb

We want to find the value of X (mass of hydrogen)

Then we can take the quotient of these two equations to get:

(9.3%/100%) = X/140lb

Now we can isolate the variable X to get:

(9.3%/100%)*140lb = X = 13.02 lb

So this person has about 13.02 lb of hydrogen in his/hers body.

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