Jordana was shown this diagram of an isosceles trapezoid and its reduction. She was asked to find the perimeter of the reduced trapezoid. Her work is shown below.

A trapezoid with side lengths 30 centimeters, 12 centimeters, and 36 centimeters. A trapezoid with side lengths A, 4 centimeters, B.
Figures not drawn to scale.

Jordana’s Work
Scale factor
StartFraction 4 over 12 EndFraction = one-third
Side A
30 times one-third = 10
Side B
30 times one-third = 10
Perimeter
10 + 10 + 4 + 4 = 28

Where, if any, did Jordana first make a mistake in her work?
Jordana made a mistake when finding the scale factor.
Jordana made a mistake when she calculated the length of side A.
Jordana made a mistake when she calculated the length of side B.
Jordana did not make any mistakes in her work.

Answer:

AC=6.37

Step-by-step explanation:

First you need to find m∠C

A triangle = 180 so you need to add 108 and 31

subtract 180-139

you get 41, so m∠C=41

Now we know all the angle measures.

Next we will use the law of sines

Go to google and type "law of sines calc"

google can usually provide with the formula and will even do the equation for you if you type in the numbers

So all you do is plug in the numbers and google will give you 6.37

Answer:

121

22/2 = 11

[tex]11^{2}[/tex] = 121

Answer:

x = -13

K = 22

Step-by-step explanation:

9x - 2 = 3x + 17 + 7x - 6

9x -2 = 10x + 11

9x = 13 + 10x

x = -13

3( -13) + 17

-39 + 17 = 22

Answer:B) 276 feet

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

hope this helps for you today

Answer:

x=4

Step-by-step explanation:

4x-x=9+3

3x=12

x=4

Step-by-step explanation:

3x contains a variable x, hence 3x is algebraic expression.

Answer:

18

Step-by-step explanation:

Answer: x=3/4

Step-by-step explanation: Remove the radical by raising each side to the index of the radical.

Exact Form:

x=3/4

Decimal Form:

x=0.75

Answer:

The answer to your question would be C.

Step-by-step explanation:

Just use a graphing calculator and plug in each answer.

Answer:

21 times 18+9= C which is 567 in squared.

Step-by-step explanation:

You connect all the missing areas in your whole figure would be in square or rectangle.

Answer:

10

Step-by-step explanation:

We can know the differences from each number

1, -2, 5, 2, 9, 6, 13, ...

~-3~7~-3~7~-3~7

The next number gonna be minus three again

So, 13 + (-3)

= 13 - 3

= 10

Hopefully help

Answer:

Most likely, yes. But the Food and Drug Administration (FDA) advises that it's best to be absolutely sure before you get behind the wheel. While most medications don't affect driving ability, some prescription and over-the-counter (OTC) medicines can cause reactions that may make it unsafe to drive.

Step-by-step explanation:

Answer:

The following numbers ARE functions:

2, 3, 6, 7, 9, 12

Step-by-step explanation:

A function is only possible if the x values have NO REPEATING NUMBER!!!

Every number that isn't mentioned above has at least 1 number in it's x-values that repeats.

Question 1 has the 8 and 4 with 2 numbers.

Question 4 the 3 repeating. (There are 2 dots over the 3)

Question 5 has numbers 1 and 5 repeating many times

Question 8 numbers 1 and 2 are repeated twice

Question 10 number 3 repeats twice

Question 11 has the 1 repeated

Answer:

x= -21

Step-by-step explanation:

6/7x=-18

divide both sides by 6/7

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

x= -21

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

Answer:

Standard form: x = -1/21 Decimal form: x = -0.047619

Step-by-step explanation:

Answer:

10.16 cm.................

....

Answer:

3.  83%, or A

Step-by-step explanation:

First you have to create the variables.

If you need to find the probablility of two items, then you first add them.

11+14 = 25.

Now, you add all the numbers.

22+14+5 = 30.

Using that, make a fraction then simplify.

25/30 = 5/6

4: D

Using the same process, add everything but the green balls.

11+5 = 17.

Now add them all up.

11+14+5 = 30

Form a fraction, then simplify.

17/30 = approximately 8/15

Answer:

Question 3: 5/6

Question 4: 8/15

Step-by-step explanation:

Yellow = y

Green = g

Red = r

Question 3) Hat:

5 red balls, 14 green balls, and 11 yellow balls

What is the probability that a yellow or green ball is chosen?

Write an equation:

y + g / y + g + r

Substitute

11 + 14 / 11 + 14 + 5

Add/Simplify

25/30

Divide both the numerator and denominator by 5 to simplify

25 ÷ 5 / 30 ÷ 5

5/6

Question 4) Bag:

5 red balls, 14 green balls, and 11 yellow balls

What is the probability that John does not choose a green ball?

Write an equation

y + r / y + r + g

Substitute

11 + 5 / 11 + 5 + 14

16/30

Divide both the numerator and denominator by 2

16 ÷ 2 / 30 ÷ 2

8/15

Hope this helps :)

Sin E is B. 1.

After making an equation i came up with this.

Answer:

Step-by-step explanation:

First, subtract 180 and "12x-3", which equals 180-12x+3

Then add 46, "5x+7", and "180-12x+3"

46+5x+7+180-12x+3 = 180

Since the degrees in a triangle add up to 180 degrees, cancel out the 180 degrees from this side "180-12x+3" and the other side "180"

46+5x+7-12x+3=0

46+10-7x=0

56=7x

X = 8

Answer:

C) Y-axis symmetry

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

√(16 * 36) =

√576 =

24

Answer:

6x^6

Step-by-step explanation:

I got it correct om edg

Answer:

subtract ---------

Step-by-step explanation:

To find value of the percentage of the number 10% of any number X without multiplying or dividing, divide X by 100 to get 1% and then multiply it by 10.

Let's say we want to find 10% of a number X. The key to this method lies in understanding that finding 10% of a number is the same as finding 1% of that number and then multiplying it by 10. To find 1% of X, we can divide X by 100, as 1% is equivalent to dividing by 100.

Step 1: Finding 1% of the number

1% of X = X / 100

Step 2: Finding 10% of the number

To get 10% of X, we multiply the 1% value by 10 since 10% is ten times greater than 1%.

10% of X = (X / 100) * 10

Now, let's demonstrate this method with an example:

Let's find 10% of 250.

Step 1: Finding 1% of 250

1% of 250 = 250 / 100 = 2.5

Step 2: Finding 10% of 250

10% of 250 = (2.5) * 10 = 25

So, 10% of 250 is 25.

To know more about percentage here

https://brainly.com/question/13729841

#SPJ2

Answer:

The equation is 42 = 24 + d

Answer:

d=42-24

42=24+d

and

24=42-d

Answer:

1 ft 2 in

Step-by-step explanation:

Subtract each foot and each inch

Answer: Jordan's mom is 1 foot and 2 inches taller than her.

Step-by-step explanation:

5 feet and 10 inches minus 4 feet and 8 inches.

May I have brainliest?

Answer:

8 - 12 + 6x

-4 + 6x

or

6x - 4

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

Answer:

90 got it right on the test

Step-by-step explanation:

Answer:

It is a equation

Step-by-step explanation:

Because it has an equal sign if it does not it will be a expression.

Answer:

exponential growth

Step-by-step explanation:

i did the test

Answer:

If you solve a linear equation you have two different lines.

Now with that being said the solutions are as follows;

One Solution: The slopes are different

No solution: The slopes are the same and the y intercepts are different

Infinite Solutions: The slopes are the same and the y intercepts are different

Look at the attached picture⤴

The right answer is of option C.

Hope it will help u...

The factored form of the expression is [tex](12x - 5)(2x - 1)[/tex]

Given the quadratic function expressed as [tex]24x^2-22x+5[/tex]

Factorizing the function, we will have:

[tex]=24x^2-22x+5\\=24x^2-12x-10x+5\\=12x(2x-1)-5(2x-1)\\=(12x-5)(2x-1)\\[/tex]

Hence the factored form of the expression is [tex](12x - 5)(2x - 1)[/tex]

Learn more on factorization here: https://brainly.com/question/11909547

Answer:

B 14/25(56.00%)

Step-by-step explanation:

167+57=224, which means 224/400(56.00%) people would have brown or hazel eyes. 224/400 is also equivilant to 14/25

Answer:

the answer is D

if you replace x by 1 the answer is 3

if you replace x by 2 the answer is 5

if you replace x by 3 the answer is 7

etc...

Answer: D

Step-by-step explanation:

given that no of days=x

let no of people=n

n=2(x-1)+3

at x=1, n=3

at x=2, n=5

at x=3, n=7

this shows an increase of 2 for every increase in the number of days

Final answer:

To solve the equation 3(y - 1 + 2y), distribute the 3 to each term inside the parentheses, combine like terms, resulting in 9y - 3.

Explanation:

To solve the equation 3(y - 1 + 2y), we need to distribute the 3 to each term inside the parentheses:

3 × y = 3y

3 × -1 = -3

3 × 2y = 6y

So the equation becomes 3y - 3 + 6y. Combining like terms, we get 9y - 3. Therefore, the correct equivalent expression is 9y - 3 (Option C).

Final answer:

The correct answer to the given expression 3(y – 1 + 2y) is 9y - 3, after distributing the 3 and combining like terms.

Explanation:

The given mathematical expression is 3(y – 1 + 2y). To simplify it, we should first distribute the 3 across the parentheses and then combine like terms. Here's how:

Thus, the correct answer is C. 9y – 3.