i dont under stand this

I Dont Under Stand This

Answers

Answer 1

Answer:

13

Step-by-step explanation:

a^2 + b^2 = c^2

Plug 5 and 12 for a and b respectively. then solve

Also its a special  5 12 13 triangle.


Related Questions

Keep that Michelle went out To dinner. The total cost of the meal, including the tip, came out to $53.70. It's a combined tip came out to $9.60 and each friend spent an equal amount, how much did each friend pay not including the tip?

Answers

The question is incomplete:

Keith and Michelle went out to dinner. The total cost of the meal, including the tip, came to $53.70. If the combined tip came out to $9.60, and each friend spent an equal amount, how much did each friend pay not including the tip?

Answer:

Each friend paid $22.05 without including the tip.

Step-by-step explanation:

Since you know the total cost of the meal including the tip and the value of the combined tip, you can subtract the amount of the tip from the total cost and divide the result by 2 as they spent an equal amount:

$53.70-$9.60=$44.1

$44.1/2=$22.05

According to this, the answer is that each friend paid $22.05 without including the tip.

Determine the equations you would use to represent the situation.
You sold 27 tickets total. Some of the tickets were student tickets and the rest were adult tickers.
You collected $170 selling the tickets. If the student tickets cost $5 and the adult tickets cost $10.
how many student tickets did you sell?

Answers

Answer:

You sold 20 student tickets.

Step-by-step explanation:

Given that:

Total tickets sold = 27

Total amount collected = $170

Cost of student ticket = $5

Cost of adult ticket = $10

Let,

x be the number of students tickets sold

y be the number of adult tickets sold

x+y = 27          Eqn 1

5x+10y=170     Eqn 2

Multiplying Eqn 1 by 10

10(x+y=27)

10x+10y=270     Eqn 3

Subtracting Eqn 2 from Eqn 3

(10x+10y)-(5x+10y)=270-170

10x+10y-5x-10y=100

5x=100

Dividing both sides by 5

[tex]\frac{5x}{5}=\frac{100}{5}\\x=20[/tex]

Hence,

You sold 20 student tickets.

PLZ HELP ME PLZ I NEED IT

Answers

Answer:

Step-by-step explanation:

we see that when x = 0 the y = 7 so we already kno our y intercept is 7

then we can see that it decreases by 4 each time so our slope is -4x

now we just put that in equation form

y=-4x+7

hope this helps <3

Which one is it pls help

Answers

Answer:

c

Step-by-step explanation:

Answer:

C. yes because BC/ST = AC/RT

Hope This Helps!

Solve for x

2(X-5) +6=7(X-1)-2 (x -6)

Answers

Answer:

x = - 3

Step-by-step explanation:

2x - 10 + 6 = 7x - 7 - 2x + 12

2x - 4 = 5x + 5

- 5 - 4 = 5x - 2x

-9 = 3x

x = - 9/3

x = - 3

i need help! i lost my notes

Answers

Answer:

sin A= 3/5

sin C= 4/5

cos A= 4/5

cos C= 3/5

Help!!!!!!!!!!!!!!!!!!!!!!!

Answers

Step-by-step explanation:

y is 130° too because it's an alternative angle love

Answer:

X=130

Y=130

Step-by-step explanation:

I know this because x is the same as 130 and the congruent angle is the same as well.  Hope this helps

Select all that apply.

Answers

it would be 3 and -3 the two at the bottom

The sales tax on a $750 computer at T&C Computers is $75. What is the sales tax rate? BTW

ANSWER IS 10%

Answers

Answer:

10%

Step-by-step explanation:

Price of computer = $750

Amount of sales tax = $75

Sales tax rate = Amount of sales tax / Price of computer × 100

= $75 / $750 × 100

= 0.1 × 100

= 10%

Sales tax rate = 10%

Sales tax rate = 10% of selling price

A bag contains 1 blue, 2 green, 3 yellow, and 3 red marbles, as shown.Which best describes the complement of choosing a red marble?

choosing a green or blue marble
choosing any marble
choosing a blue, green, or yellow marble
choosing a yellow marble

Answers

Answer:

C) choosing a blue, green or yellow marble.

Step-by-step explanation:

The Complement of choosing a red marble means choosing any other marble that isn't red.

From the question , it was said that there were a blue , green, yellow and red marble.

So the Complement of choosing a red marble will be choosing any other marble apart from the red so ,that will be choosing a blue yellow or green marble.

Answer:

c

Step-by-step explanation:

A person who is 2 m tall casts a shadow that is 5 m long. At the same time, a building casts a shadow that is
24 m long. How tall is the building? Please show me how u get the answer

Answers

Answer:

9.6

Step-by-step explanation:

First you figure out that the shadow is 2.5 times larger than what is casting it. Then you divide 24 by 2.5.

if 14 of the 22 students in mrs herberts 2nd period class choose math as the favorite subject, what is the P(math)

Answers

Answer:

A(math)

Step-by-step explanation:

I’m doing a percent equation and I need help here is the question 90% of blank =72

Answers

Answer:

80

Step-by-step explanation:

90/100*x=72

9/10*x=72

x=72*10/9

x=80

SOMEONE HELP ME WITH GEOMETRY PLEASE!!!!


Find the coordinates of the orthocenter of the triangle with the given vertices.

A(−1, 2), B(9, 2), C(−1, −3)

Answers

Answer:

is there a picture or something?

Answer:

it's (-1,2)

Step-by-step explanation:

Find the slope and the y-intercept of the graph of y=−45x−2.

Answers

Answer:

Slope: -45

Y-intercept: -2

Step-by-step explanation:

The expression is written in slope-intercept form or y=mx+b.

mx is the slope and b is the slope intercept

An object launched straight puwar from the ground level wiht an initional velocity of 32 feet per second.The formula H=32T-16T^2 gives it heigtht,h,in feet after t second. At what time does the object hit the ground?

Answers

Answer:

2 secs after

Step-by-step explanation:

Given the height of the object modeled by the eqaution;

H(t) = 32T - 16T² where;

T is the time in seconds

The object hits the ground when h(t)= 0

Substitute H = 0 into the equation and get t as shown;

0 =  32T - 16T²

0-32T = -16T²

-32T = -16T²

32T = 16T²

32 = 16T

T = 32/16

T = 2secs

Hence the object hits the ground after 2 secs

What is the value of n in the equation below 9n-24=4n+6

Answers

Answer:

6 (I believe so)

Step-by-step explanation:

9n-24=4n+6

9n=4n+30

5n=30

n=6

Answer:

n=6

Step-by-step explanation:

9n - 24 = 4n + 6

-4n          -4n

5n - 24 = 6

     +24    +24

5n = 30

divide both sides by 5

n = 6

hope this helps!!!

just fill out why it is 3

Answers

Answer:hi

Step-by-step explanation:hi

Because, in reverse it's basically asking what is 12 minus 5. So, 12 minus 5 is 3!

Hopefully, this helps! :D

Ask your question below.

Find the cost of erecting a 6 m by 4 m rectangular garden shed that is 2 m high if
the metal sheeting costs shs58,500 per square metre.​

Answers

Answer:

2320000

Step-by-step explanation

work out the perimeter first 6+4 times 2= 20

20 time 2m high=40

40 times 58000= 2320000

What is the sum of
6x - 11y + 2x + 2y?

the answer need to be a formula of answer+answer

this is 15 points, so please help

Answers

Answer:

8x-9y

Step-by-step explanation:

6x+2x=8x, -11y+2y=9y

Hope this helps plz hit the crown :D

Select the equation that shows a proportional relationship between x and y. Oy - 2x + 4 oys 5x O y = 3x - 5 OY-5.8​

Answers

Given:

There exist a proportional relationship between x and y.

To find:

The equation which represents a proportional relationship between x and y.

Solution:

If there exist a proportional relationship between x and y, then

where, k is constant of proportionality.

We know that, proportional relationship passes through the origin because (0,0) satisfy .

For x=0, check which equation has y=0.

In option A, .

In option B, .

In option C, .

In option D,  

Only in option C, we have a equation of the form  with 4 as constant of proportionality and it passes through (0,0).

Therefore, the correct option is C.

Answer:

You can give China brainiest.

Step-by-step explanation:

Mary is 10 years old and Eleanor is 15 years old. Divide £1:75 between them in the ratio of their ages

Answers

Answer:

Mary have £ 0.7

and Eleanor 1.05

because

Mary 10/ 10 +15 × 1.75= .7

Eleanor 15 /10+15× 1.75 =1.05

evaluate the expression
(7×18+45)÷3×2
please help ​

Answers

Answer:

28.5

Step-by-step explanation:

(7×18+45)÷3×2

7x8 = 126

3x2 =6

(126+45) / 6

126+45= 171

171 /6

171/6 = 28.5

When solving an equation, Gabrielle’s first step is shown below. Which property justifies Gabrielle’s first step?

Original Equation:
-2-2x+4=5

First Step:
-2x-2+4=5

Answers

i need help too !!!!!!!!


Find the square root of the fraction 4/49.
A 2/7
B 7/2
C Cannot be done

Answers

Answer:

A

Step-by-step explanation:

2 times 2 = 4

7 times 7 = 49

2/7 = 4/49

Hope this helps!!!

Solve the given system by substitution.

Answers

Answer:

(-3, -15)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

n = 5m

n = 2/3m - 13

Step 2: Solve for m

Substitution

Substitute in n:                                 5m = 2/3m - 13Subtract 2/3m on both sides:          13/3m = -13Divide 11/3 on both sides:                m = -3

Step 3: Solve for n

Define equation:                    n = 5mSubstitute in m:                      n = 5(-3)Multiply:                                  n = -15

Answer:

Step-by-step explanation:

5m = 2/3m - 13

15m = 2m - 39

13m = -39

m = -3

n = 5(-3)

n = -15

(-3, -15)

For the function f(x)=3x-4 find f(2)

Answers

Hi there!

[tex]\large\boxed{f(2) = 2}[/tex]

Evaluate f(x) at x = 2 by substituting 2 for x:

f(x) = 3x - 4

f(2) = 3(2) - 4

f(2) = 6 - 4

f(2) = 2

Joe has to get 80% overall in his 3 tests. He gets 60% in one of them. How much percentage does he need for both of the exams to get 80% overall?

Answers

Answer:

80%

90%

Step-by-step explanation:

BRAINLIEST PLEASE

Number 17 please help?
Pls

Answers

Answer:

B

Step-by-step explanation:

16 pearls/20opals = 8pearls/ blank opals complete each equivalent ratio

Answers

Answer:

10

Step-by-step explanation:

16/20=8/10

16/2=8

20/2=10

16 pearls/20opals=8perals/10opals

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