Mathematics Middle School

In the figure below, what is m∠DAC? A. 47 B. 57 C. 90 D. 137

Answers

Answer 1

your answer would be 47

please let me know if i was wrong :)

Answer 2

Answer would be A :)

Related Questions

2. The radius of a circle is 9 yards. Find the diameter.

Answers

Answer:

Step-by-step explanation:

9 x 2 = 18

radius x 2 = diameter

69. If four coins are flipped, find the probability and the odds of obtaining one head and three tails.

Answers

Answer:

The probability is 4/16 = 1/4

Step-by-step explanation:

The two dot plots below compare the forearm lengths of two groups of schoolchildren:

Based on visual inspection of the dot plots, which of the following groups appears to have the longer average forearm length?

A. Group B, because a child in the group has the least forearm length of 11 inches

B. Group A, because three children in the group have the least forearm length of 11 inches

C. Group B, because four children have a forearm length longer than 13 inches

D. Group A, because no child in the group has a forearm length longer than 13 inches

Answers

So, The dots represent the children.

And the numbers represent the length in.

I wouldnt say its D.

I would say its C. Group B, because 4 kids have forearm length longer then 13 in.

Answer:

So, The dots represent the children.

And the numbers represent the length in.

I wouldnt say its D.

I would say its C. Group B, because 4 kids have forearm length longer then 13 in.

Step-by-step explanation:

can someone help me? i need my math grade to go up

Answers

Answer:

Step-by-step explanation:

do it piece of paper or ask someone to help you.

the answer is 59, because 63 to the power of 3 is 21 and the other answers are decimals that are smaller

1. How can you describe the likelihood of an event?

Answers

Answer:

It could be the probability or this for an example: 1/2 = an equal chance of getting 1 or 2, 3/4 = likely, 1/4 is going to be unlikely since you have a lower chance of something, and 4/4 = 1 = a certain chance of something happening.

Step-by-step explanation:

well it could be the probability.

Mr. Jackson is ordering kazoos for his second, third, and fourth grade music classes.
The kazoos come in boxes of 8. There are 26 second graders, 24 third graders, and 30 fourth graders.
How many boxes of kazoos does Mr. Jackson need to order so that every student will receive a kazoo?
Enter your answer in the box.

Answers

Answer:

The boxes of kazoos Mr. Jackson needs to order (26 + 24 + 30) ÷ 8.

We have given that,

There are 26-second graders, 24 third graders, and 30 fourth graders.

What is the expression?

An expression, in math, is a sentence with a minimum of two numbers and at least one math operation contain in it.

The amount of kazoos needed is 1 for every student

26 + 24 + 30

Since 8 come in each box, you divide by 8

To get your answer of (26 + 24 + 30) ÷ 8.

The answer is 10.

You have to add 24 with 26 with 30 then divide that by 8 and which will get you ten. Ten is how many packages you Mr. Jackson would need for his 2nd, 3rd, and 4th grade classes

Please help i give brainliest, show the work though. Susan is buying 5 and a half pies from the market. Write this amount as a mixed number, improper fraction, decimal and percent.

Answers

Answer: 5 1/2 pies as a mixed number, 11/2 as an improper fraction, 5.5 as a decimal, 550 as a percent

Step-by-step explanation:

2x5+1 11

-----------= -----

2 2

The fraction 5 1/2 is equal to 5, plus 1 divided by 2 which is equal to 5, plus 0.5 which is equal to 5.5 in decimal

5.5 x 100 = 550 percent

Mixed fraction:

Given statement: Susan is buying 5 and a half pies from the market.

We already know:

The word "and" means "in addition to", which means addition (+)

Therefore, the number of pies Susan bought is;

⇒ 5 and a half pies⇒ 5 + half pies

∴ Half can be written as ½

⇒ 5 + ½

If a whole number is being added to a fraction, we can combine them to convert the sum into mixed fraction.

⇒ 5 + ½⇒ 5 ½

Therefore, 5 ½ is the fraction of pies, Susan bought.

Improper fraction:

Given statement: Susan is buying 5 and a half pies from the market.

In mixed fraction: Susan is buying 5 ½ pies from the market.

To convert the mixed fraction of pies into improper fraction, simply multiply the whole number by the denominator and add the numerator to the product of the whole number and the denominator. The denominator in the mixed fraction will remain the same in the denominator.

⇒ 5 ½⇒ [(5 × 2) + 1]/2⇒ [(10) + 1]/2⇒ [11]/2 = 11/2

Therefore, 11/2 is the fraction of pies, Susan bought.

Decimal:

Given statement: Susan is buying 5 and a half pies from the market.

In improper fraction: Susan is buying 11/2 pies from the market.

Clearly, we can rewrite 11/2 as;

⇒ 10/2 + 1/2

10/2 results in getting 5 and 1/2 results in getting 0.5. Therefore,

⇒ 5 + 0.5⇒ 5.5

Therefore, 5.5 is the decimal of pies, Susan bought.

Percent:

Given statement: Susan is buying 5 and a half pies from the market.

In decimal: Susan is buying 5.5 pies from the market.

Simply multiply the decimal by 100 to determine the percentage of pies bought by Susan.

⇒ 5.5 pies = 5.5 x 100% = 550%

Therefore, 550% is the percent of pies, Susan bought.

A parallelogram has an area of 120 square feet and a height of 6 feet.

What is the length of the base of the parallelogram?

Enter your answer in the box.

*box*

Answers

Answer:

20 feet

Step-by-step explanation:

1. We know from here that A = bh (Area = Base x Height).

We are given:

A = 120 ft^2

h = 6 ft

b = ?

2. Let's rearrange our formula (A = bh) so that we find what "b" equals."

Our new formula will be: b = A/h (base = Area / height).

3. Let's apply it to the question and do the required math!

b = A/h

b = 120/6

b = 20 ft

Answer:

b = 20 ft

Step-by-step explanation:

The area of a parallelogram is given by:

A = b*h

where,

A: area = 120 ft^2

b: base = ?

h: height = 6 ft

From the equation for A, solve for b, replace the values of A and h and simplify:

b = A/h

b = 120ft^2/6ft

b = 20ft

Hence, the length of the base of the parallelogram is 20 ft

Can anyone help with this problem?!

Answers

Answer:

1) 24 2) 65

Step-by-step explanation:

1) 40-8x when x=2

8*2=16

40-16=24

2) 65/p*3 when p=5

65/5= 13

13*5= 65

Hope this helps ^^

6) a. 40-8x

= 40-8(2) ← [8 x 2]

=40-16

=24

Select all the relationships with a constant of proportionality of 12.

Answers

The answers are the 1st 2nd 3rd 4th box

please help 50 point will be given!!

Answers

Answer:

Step-by-step explanation:

Count how many there are per meat mixed with all three different veggies, sounds weird in writing but makes sense if clarified by speech. anyways hope this helped have a great night!

9
beef spinach, beef broccoli, beef carrots

chicken spinach, chicken broccoli, chicken carrots

fish you get it

Ricardo paid for 3 pounds of oranges with a $10 bill. He got back $8.20. What was the cost of 1 pound of oranges?

Answers

Answer:

6 cents

Step-by-step explanation:

10 - 8.20 = 1.8

1.8 / 3 = 0.6

Hope this helps you :D

Answer: $0.60

Step-by-step explanation:

Facts

got 3 lbs of oranges

paid with $10, got 8.20 in change.

Step 1: Find how much the 3lbs of oranges actually cost (actual total)

10-8.20= 1.8

Step 2: Find the unit rate (cost per lb)

Cost per lb. Divide the cost by the number of pounds, as shown:

1.8/3= 0.6

Step 3: Checks

[hypothetically], each pound costs 0.60.

Buying 3 pounds of oranges, multiply 0.6x3= 1.8.

Now, you pay with $10.

To find how much change you get, subtract 10-1.8= 8.20

These computations are correct, and the resulting facts match those given in the question. This is how I double check the answer is accurate.

Hence, each pound costs $0.60, or 60 cents.

Hope this helps :)) brainiest would be appreciated :D

First Question: Screenshot the following image and attach a photo after you dilate by a scale factor of 2.

Second Question: Screenshot the following image and attach a photo after you dilate by a scale factor of 1/3.

Please help! If you help with this please do my other questions!! (They are very similar!)

Answers

Answer: See in the explanation, screenshot attached

Step-by-step explanation:

SQUARE QRTS

Step 1: Label all of the coordinates

Step 2: Find the coordinates of the points

Q: (-2, 1)

R: (2, 1)

T: (-2, -2)

S: (2, -2)

Step 3: Know what it means to dilate

To dilate is to make a shape bigger or smaller. For example, when it says to dilate by a scale factor of 2, you multiply each coordinate by 2 to get coordinate pairs that are twice the original amount (in this case you make it bigger). However, if it says to dilate by a scale factor of a fraction, for example 1/2, you'd multiply the coordinates by 1/2 and hence make it smaller (1/2 its size).

Step 4: Dilate by a scale factor of 2--multiply by 2

*x stands for the x coordinate, and y stands for the y coordinate*

Q: -2, 1

x: -2x2= -4

y: 1x2= 2

[Dilated] Q: -4, 2

R: 2, 1

x :2x2= 4

y: 1x2= 2

[Dilated] R: 4, 2

T: -2, -2

x: -2x2= -4

y: -2x2=-4

[Dilated] T: -4, -4

S: 2, -2

x: 2x2= 4

y: -2x2= -4

[Dilated] S: 4, -4

Step 5: Plot the new pairs

(See screenshot)

SQUARE ABCD

Step 1: Label all the coordinates

Step 2: Find the coordinate pairs of the points

A: -3, 3

B: 3, 3

C: 3, -3

D: -3, -3

Step 3: Remember what it means to dilate

(See 1st explanation)

Step 4: Dilate by a scale factor of 1/3

**Since 1/3 is a fraction, we are making the square smaller, or making it ⅓ of its original size. You will see that the numbers of the coordinates get smaller once you dilate them.**

A: -3, 3

x: -3x1/3= -1

y: 3x1/3= 1

[Dilated] A: -1, 1

B: 3, 3

x: 3x1/3 = 1

y: 3x1/3= 1

[Dilated] B; 1, 1

C: 3, -3

x: 3x1/3= 1

y: -3x1/3= -1

[Dilated] C: 1, -1

D: -3, -3

x: -3x1/3= -1

y: -3x1/3= -1

[Dilated] D: -1, -1

Step 5: Plot the new pairs

(see screenshot)

Hope this helps :))

Also I worked pretty hard on this so brainiest would be appreciated :D

PLEASE HELP !!!!!!

find the missing number on the number line

Answers

Answer:
The answer is 1
Step-by-step explanation:
The number line is in the negatives until it hits the ? so it's 1

the answer is one. count the halfs and lines and you will get 1

PLEASE HURRY AND FAST Raul's soccer team enters a tournament. He estimates that
his team has a 50% chance of winning each of the three
games they play. If they win all three games, they move to
the championship. To model his team's chance of going to
the championship, Raul performs a simulation using a
coin.
Let heads (H) represent a win.
• Let tails (T) represent a loss.
The results of the simulation were:
HTH HHH TTT HTT HHT
TTT HTT HTT HTT HHH
НHТ HTT ТTТ TTT HTH

Answers

Answer:

A. There were NOT 3 successes . there were only two.

Step-by-step explanation:

Answer: there were only two success

the shoes department is offering a sale of 15% off all shoes. if mrs. jefferey saved $12.30, how much were the shoes full price?

Answers

Answer: $82

Step-by-step explanation:

F - .15F = 12.30

F = 12.3/.85 =$14.47 for full shoe price rounded down a fraction of a cent

Full Price minus 15% discount = $12.30

F - 0.15F = 12.30

F(1-0.15) = 12.30

0.85F = 12.30

Overall answer --->F = 12.30/.85 = 14.47058824

the shoes department is offering a sale of 15% off all shoes. if mrs. jefferey saved $12.30, how much were the shoes full price?
82

27. Find a polar equation of the conic with focus at the pole that has the given eccentricity and equation of directrix.
e=\frac{4}{3}, r \cos \theta=-3

Answers

The polar equation will be [tex]r=\dfrac{4}{1+cos\theta}[/tex]

What is the polar equation?

A polar equation is any equation that expresses the relationship between r and theta, where r is the distance between the pole (origin) and a point on a curve, and theta is the counterclockwise angle formed by a point on a curve, the pole, and the positive x-axis.

From the equation, we are told that

The Eccentricity: e = 1

The Directrix is y = 4

Generally, the polar equation for e = 1 and y = + c is mathematically represented as

[tex]r =\dfrac{e\times c}{1+ecos\theta}[/tex]

[tex]r =\dfrac{1\times 4}{1+1\times cos\theta}[/tex]

[tex]r=\dfrac{4}{1+cos\theta}[/tex]

Therefore the polar equation will be [tex]r=\dfrac{4}{1+cos\theta}[/tex]

To know more about the polar equation follow

https://brainly.com/question/9363127

#SPJ1

please helppppp me i need it

Answers

hey there!

Given rule is 2x-8

Given x = 8

On substituting ,

=> 2(8)-8

=> 16-8

=> 8

8 is the answer mate!

Hope it helps you

Please mark as brainliest.

I NEED HELP PLEASE I LOVE YOU!!!!! What is the mean absolute deviation (MAD) for the set of data?
{21, 18, 14, 23, 34, 40}

Answers

Answer: 8

Step-by-step explanation:You Take each number in the data set, subtract the mean, and take the absolute value. Then take the sum of the absolute values. Now compute the mean absolute deviation by dividing the sum above by the total number of values in the data set.

Desmos
Is it Fair?

Explain your answer.

Answers

Answer: yes
It is fair
Hope this helps

Yes it is fair because the line stays consistent threwout the graph chart

please help my finale math exam is do to night
1: What is the volume of a circular cake pan that measures 8 inches across and 2 inches high?
2: How many outcomes are created by rolling a 4-sided die, 6-sided die, and a 12-sided die at the same time?

3: Sammy puts 12 M&Ms in a bag. 3 are green, 4 are yellow, 2 are orange, and 3 are red. He pulls one M&M at a time from the bag and eats it. What is the probability he will pull a yellow, then a green, then a red?

4: A magician is doing a trick that needs 3 volunteers and he has 100 audience members to choose from. How many different ways can the magician choose his volunteers?

5: A waiter in a restaurant has 8 booths available. How many different arrangements are possible to seat 8 groups of people?

Answers

Answer:

Dimension volume

6 cups (1.5 L) 8 x 2 inch (20 x 5 cm) Round Cake Pan

6 cups (1.5 L) 9 x 1.5 inch (23 x 4 cm) Round Cake Pan

6 cups (1.5 L) 8 x 8 x 1.5 inch (20 x 20 x 4 cm) Square Cake Pan

8 cups (2 L) 9 x 2 inch (23 x 5 cm) Round Cake Pan

here are four outcomes that sum to seven out of 24 possible outcomes. Therefore the probability of values of four sided die and six sided

Step-by-step explanation:

The population of a city was 60,000 in 2015. In 2016, the population of the city was 63,000. The percent increase in the population from 2015 to 2016 was the same as it was from 2016 to 2017. What was the population of the city in 2017?

Answers

The answer of this question is 66,000.

The answers is 66,150.

When you do the formula to find the percent increase the higher amount minus the lower amount, divided by the old population is how you find the percent increase, thus there is a five percent increase. So 5 percent of 63000 is 63000 times .05 which is 3150 and 3150 plus 63000 is 66150

The principal observes 8th grade the following day. Of the 120 students, 42 brought their lunch from home, 72 purchased lunches, and 6 brought a lunch from home and purchased an ice cream.

Explain how the principal could use the numbers from 7th grade to predict the 8th grade possibilities.

Answers

I think

Step-by-step explanation:

by finding each chart such as if there are 120 7th graders and 180 8th graders he can use the same numbers from the 7th graders and compare each percentage to the 8th-grade kids and get a close enough answer

Please help!

A net of a rectangular prism is shown below. The surface area of each face is labeled.
Problem
Which values represent the dimensions, in meters, of the rectangular prism?

A.3, 4, 10
B. 12, 30, 40
C. 2, 6, 8
D. 2, 5, 6

Answers

Answer:

b i think

Step-by-step explanation:

because if you make it into a prism, the dimensions are basically the same

14.30:A haunted house has six windows. In how many ways can Georgie the Ghost enter the house by one window and leave by a different window?

Answers

Answer:

30 ways

Step-by-step explanation:

Possible ways to enter

6 windows

Possible ways to exit

5 windows, since same window entered is not used

Total number of ways is

6*5 = 30

Which of the following fractions is equivalent to 9/15?

Answers

Answer:

B.) 36/60

Step-by-step explanation:

some

equivalent fractions of 9/15:

3/5 = 6/10 = 9/15 = 12/20 = 15/25 = 18/30 = 21/35 = 24/40 = 27/45 = 30/50 = 33/55 = 36/60

Answer:

36/60

Step-by-step explanation:

Either Cross Multiply or Turn into decimal to find the following answer.

For this question I suggest to turn into decimal.

Cross multiply would take longer time, but if you wish you could use both ways to check your answer.

I will be turn into decimal:

Main Fraction: 9/15 ⇒ 0.6

3/10 ⇒ 0.3

36/60 ⇒ 0.6

27/35 ⇒ 0.77142857142

20/30 ⇒ 0.66666666666

As you can see out of all the fractions:

36/60 is equal to 9/15

Kavinsky

What is the scale factor of ABC to A'B'C'?

Please help!! ASAP if you help with this PLEASE HELP WITH MY LAST QUESTION I ASKED!!! (it’s worth a lot of points!)

Answers

The Scale factor (SF) would be 5. Since all the lengths are 2( 2x5= 10) which is the lengths of the image!

The scale factor is 5. hope this helps

2. The radius of a circle is 11 inches. Find the diameter. (Section 13.1)

Answers

Answer:

Step-by-step explanation:

diameter = radius x 2

11 x 2 = 22

You randomly choose one of the tiles. Without replacing the first tile, you randomly choose a second tile. Find the probability of the compound event. Write your answer as a fraction or percent rounded to the nearest tenth. The probability of choosing a red tile and then a vowel is

Answers

Answer:

Step-by-step explanation:

I’m gay and so are you!!

Can someone help me with 2 financial literacy questions

Answers

It would be a loan because your friend gave you money expecting to get it back eventually and maybe with interest

Other Questions