Mathematics Middle School

please help this isn't a test it's just work I'm missing

Please Help This Isn't A Test It's Just Work I'm Missing
Please Help This Isn't A Test It's Just Work I'm Missing

Answers

Answer 1

#1 is 81

Step-by-step explanation:

Answer 2

Answer:

1. 81

2. -9

3. -20

4. 4

Step-by-step explanation:

1. a negative times a negative always makes a positive

2. dividing a positive and a negative always gives you negative

3. multiplying a negative and a positive always gives you negative

4. dividing a negative and a negative always gives you positive

Related Questions

Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.



What is the mean number of minutes spent on the phone?

Some students recorded how many minutes they spent on the phone in one day. They put the results in a

Answers

Answer:   31

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

Does anyone know the answer?
ASAP!

Does anyone know the answer? ASAP!

Answers

The answer
should be 4%
The answer you are looking for is 4%

Please help me asap... (=.= ) Find the volume of this cone... Thank you!♡

Please help me asap... (=.= ) Find the volume of this cone... Thank you!

Answers

Answer: 157.08

Step-by-step explanation:

157.08isAnswer:pl z give me brianliest or the other guy have a nice day

Step-by-step explanation:

how do u add and subtract positive and negative fractions?

Answers

So basically, if you know how to add and subtract with negative numbers, it applies the same rules in negative fractions.

Integers:

\(4 - (-5) = 4 + 5 = 9\)

Fractions:

\(\frac{1}{4} - (- \frac{1}{5} ) = \frac{1}{4} + \frac{1}{5} = \frac{5}{20} +\frac{4}{20} = \frac{9}{20}\)

When you are adding or subtracting a negative fraction, you usually want to consider the numerator as negative. The method is just the same, except now you may need to add negative or positive numerators.

Example 1:

Find the sum.

95+(−43)
9
5
+
(
−
4
3
)

The LCM of 5
5
and 3
3
is 15
15
.

To add the fractions with unlike denominators, rename the fractions with a common denominator.

95=9×35×3=2715−43=−4×53×5=−2015
9
5
=
9
 
×
 
3
5
 
×
 
3
=
27
15
−
4
3
=−
4
 
×
 
5
3
 
×
 
5
=−
20
15


So,

95+(−43)=2715+(−2015)
9
5
+
(
−
4
3
)
=
27
15
+
(
−
20
15
)

Since the denominators are the same, add the numerators.

=27+(−20)15=715 =
27
+
(
−
20
)
15
=
7
15


Example 2:

Find the difference.

−710−215
−
7
10
−
2
15

The LCM of 10
10
and 15
15
is 30
30
.

To subtract the fractions with unlike denominators, rename the fractions with a common denominator.

−710=−710×33=−2130215=215×22=430 −
7
10
=−
7
10
×
3
3
=−
21
30
2
15
=
2
15
×
2
2
=
4
30


So,

−710−215=−2130−430
−
7
10
−
2
15
=
−
21
30
−
4
30

Since the denominators are the same, subtract the numerators.

−2130−430=−21−430
−
21
30
−
4
30
=
−
21
−
4
30

Simplify. We get:

−2530 or −56
−
25
30
or
−
5
6

10^-3 mm in inches??

Answers

3.9

it has to be 20 characters long so hi

3.93700787*10^-5 inches

A rollercoaster rises 160 feet into the air before dropping 190 feet. What is the height of the rollercoaster of the riders

Answers

190 a 160 = 30

The space of the roller coaster of the riders is 30 feet

*i think *
30 feet is the correct answer

Rose rolled a regular 6-sided dice. What is the probability she rolled an even number?

Answers

Answer:

\(\frac{3}{6}\)

Step-by-step explanation:

3/6 chance :) hope this helps!!

*GIVING BRAINLIEST* Tell whether the ordered pair is a solution of the inequality whose graph is shown.

*GIVING BRAINLIEST* Tell whether the ordered pair is a solution of the inequality whose graph is shown.

Answers

Answer:

1.yes 2. no 3. yes 4. yes 5. yes

Step-by-step explanation:

1. is yes because the point is in the shaded region ,same goes for 4 2. is no because it is not in the shaded region. 3 and 5 are a point on the line and since the line is solid not dotted it will be a yes

All are yes except the 2nd one just remember the first number in the ordered pair is the x so count on the horizontal line and the second number is y so count on the vertical line and you can see if it falls in the shaded area or not

2, 3, 5, 9, 17, 22, 31, 39

Regina kept track of the points she scored during her team’s first eight basketball games. What is Regina’s mean score?
Responses
A 3939
B 1616
C 3737
D 1313
E 17

Answers

Answer:

Mean = 16

Step-by-step explanation:

MEAN can be find bg the sum of all score divided by the amount of the score.

Mean = total amount / number of amount

Total amount = 2 + 3 + 5 + 9 + 17+ 22 + 31 + 39

= 128

number of amount = 2, 3, 5, 9, 17, 22, 31, 39

= 8

Then we can calculate mean as

Mean = 128/8

Mean = 16

16
2+3+5+9+17+22+31+39=128
128/8=16

can someone help me please im being timed-

can someone help me please im being timed-

Answers

Answer:

the set of whole number since it is defined as positive integers + zero

Answer:

B

Step-by-step explanation:

whole numbers are never negative! this seems easy.. if you want i can help with the rest of the work if needed

please help!!!!!!!!!!!!!!!!!!!!!!!

please help!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

1. 16 inches

2. 1256 square feet

Please help me put the coordinates on and get the slope!

Please help me put the coordinates on and get the slope!

Answers

Answer:

Step-by-step explanation:

Slope

\(m=\frac{y2-y1}{x2-x1} \\\\m= \frac{3/2-(-3/2)}{3/2-(-3/2)}\\\\m=\frac{3/2+3/2}{3/2+3/2}\\ \\m=\frac{3}{3}\\ \\m=1\)

slope: m=1

y=mx+b

y=1x+0

Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared deals from Speedy Clean Carwash and Sudsy Bubbles Carwash to decide which membership to get. Robin arranged the information in the tables below.
How many times will Robin need to wash her car to spend the same amount at both carwashes?
P.S.: I attached the table below:)

Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared

Answers

Robin will need to wash her car 4 times to have spent the same amount at both car washes. I hope this helps!
Robin wants to buy a membership at a carwash this summer so that she can keep her car clean. She compared
It will be 35 dollars

would anyone do these for 100 points and brainliest you dont have to graph it on number line tho

would anyone do these for 100 points and brainliest you dont have to graph it on number line tho

Answers

Answer:

1. 39

2. 96

3. 1/2

4. 48

5. -32

6. 34

7. 1.44

8. 9/8

9. 3.5

Step-by-step explanation:

39
96
1/2
48
-32
34
1.44
9/8
3.5

Becky takes out a loan for $5,000. She plans to repay the loan in 8 years. The interest rate is 7.3% compounded annually. How much will she have to pay in interest?

Answers

We can solve this equation by simply doing:
(0.073 x 5,000) x 8
$2920 is our total interest :)

Answer:

  $3785.53

Step-by-step explanation:

You want the interest amount due at the end of 8 years on a $5000 loan at 7.3% compounded annually.

Future value

The amount due is multiplied by (1 +0.073) each year. After 8 years, the amount due will be ...

  5000(1.073^8) ≈ 8785.53

Of that, 5000 is the principal amount, so the remainder is interest.

  interest = $8785.53 -5000

  interest = $3785.53

Becky will have to pay $3785.53 in interest.

<95141404393>

Becky takes out a loan for $5,000. She plans to repay the loan in 8 years. The interest rate is 7.3%

20 points and I will mark you brainliest!
The shape below is transformed to another shape. Shape C D E F G H Which shape could be its image? Shape C D E F G H Shape G prime H prime C prime D prime E prime F prime Shape G prime C E D prime F H prime Shape C prime D prime E prime F prime G prime H prime

Answers

There is no image to look at, re-upload with image attached please?

Answer:

B ON EDG

Step-by-step explanation:

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

20r^7 st^2 u^4

Step-by-step explanation:

20r^7 st^2 u^4
hope that helps.

A project will take a total of 720 person-days to complete. If the project must be completed in 30 days, how many people must be employed? PLEASE HURRY

Answers

Answer:

192 hours per day / 8 hours per person per day = 24 people

Step-by-step explanation:

Assuming each person works for 8 hours a day, the total number of hours needed to complete the project is:

720 person-days x 8 hours = 5,760 hours

To complete the project in 30 days, the total number of hours needed per day is:

5,760 hours / 30 days = 192 hours per day

It’s 24!! EXPLAIN-720/30=24 because you have to divide the amount of people by days p/d= e

15. The product of two whole numbers is always a whole number. Verify this statement
with two examples.

Answers

The product of two whole numbers is always a whole number i.e. if 'a' and 'b' are any two whole numbers, their product will also be a whole number.

The multiplication of any two numbers can be expressed as the repeated addition of one number. So, for example, if we add a whole number to itself again and again, then we will definitely be left with the result of a whole number.

Let's assume

a = 2, b = 3.

a × b = 2 × 3 = 6

This is the same thing as adding '2' three times to itself, which will result in a whole number, which is 6 in this case.

Let's take another example 0 and 7. The product of these numbers is:

a = 0, b = 7

a × b =  0 × 7 = 0

As we know, 0 is also a whole number. Through these examples, we can understand that the product of two whole numbers is always a whole number.

To know more about whole numbers, visit :

https://brainly.com/question/30765230

Answer: Yes, the product of two whole numbers is always a whole number.

Step-by-step explanation:

Example 1:

Let's take the whole numbers 4 and 3.

The product of 4 and 3 is 12, which is also a whole number.

4 x 3 = 12

Example 2:

Now let's take the whole numbers 7 and 2.

The product of 7 and 2 is 14, which is also a whole number.

7 x 2 = 14

Whole numbers include all positive numbers starting from zero and continuing indefinitely in the positive direction. Whole numbers do not include fractions, decimals, or negative numbers. Example- 0,1,2...

To learn more about whole numbers:

https://brainly.com/question/9879870

https://brainly.com/question/1852063

Determine whether the ratios are proportional.
21/35 15/25

Answers

Yes they are 21/35=.6, 15/25=.6
21 x 25 = 525 35 x 15 = 525

Cross multiply numerators and denominators if the are equal that’s the ratios are proportional

HELPPPP !!! VERY URGENT!!!!
HIGH POINTS

HELPPPP !!! VERY URGENT!!!!HIGH POINTS

Answers

The answer is 9 I hope I am not late to this question sorry if I am wrong,

Help :( pls I’ll give brainlist!

Help :( pls Ill give brainlist!

Answers

Answer:

Ozone

Step-by-step explanation:

The answer is Ozone (PLEASR BRAINLIST ME

i need help with these

i need help with these
i need help with these
i need help with these
i need help with these
i need help with these

Answers

For the first image it’s the second one down, y = 1/2000 because 6 divided by 12,000 is 2000.

Answer:

1.d

2.B i think because it does not go to 0,0

3.d

4.C

5.C

Step-by-step explanation:

You pick a card at random. 6 7 8 9 What is P(divisor of 70)? Write your answer as a percentage. %

Answers

Answer:

Step-by-step explanation:

6.789x10 3 esta es la solución

Part A Can you map shape I onto shape II by a sequence of transformations? If so, give a sequence of transformations that maps shape I onto shape II.


Part B
Complete the sequence of transformations you found in part A, but in a different order. Does this also map shape I onto shape II? What does this mean?


Question 2 Part A
If you reflect any shape across the x-axis and then rotate it 90° clockwise about the origin, do you get the same result as if you reflect it across the y-axis and then rotate it 90° counterclockwise about the origin? What does this mean?


Part B
If you reflect any shape across the x-axis and then rotate it 180° about the origin, do you get the same result that you would if you reflect it across the y-axis and then rotate it 180° about the origin? What does that mean?


Part C
If you reflect any shape across the x-axis and then across the y-axis, do you get the same result that you would if you rotated it 180° about the origin? What does that mean?

Part A Can you map shape I onto shape II by a sequence of transformations? If so, give a sequence of

Answers

Part C is the answer

mark me brainliest pls

A it means you flipped the x axis and b it means shahs snsjsisisnsndksnss

Three research departments have 8 ,10 , and 7 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this be done?

Answers

We can conclude that exists 211680 ways.

How many ways can this be done?

We know that the three research department is have 8, 10, and 7 members.

We choose a delegate and an alternate to represent the department.

First case: department have 8 members.

So, for a delegate, we have 8 options, and for a alternate 7, so a total of

\(8 \times 7 = 56 \ \text{options}\)

Second case: department have 10 members.

So, for a delegate, we have 10 options, and for a alternate 9, so a total of

\(10\times 9 =90 \ \text{options}\)

Third case: department have 7 members.

So, for a delegate, we have 7 options, and for a alternate 6, so a total of

\(7\times6 = 42 \ \text{options}\)

Therefore, we get:

\(56 \times 90 \times 42 = \bold{211680}\)

Hence, we conclude that exists 211680 ways.

For a similar problem about this, please click the link below:

https://brainly.com/question/30958797

To determine the number of ways to select a delegate and an alternate from each department, we can multiply the number of choices for each department together.

For the first department with 8 members, there are 8 choices for selecting a delegate. After choosing a delegate, there remain 7 members, so there are 7 choices for selecting an alternate. Therefore, there are 8 × 7 = 56 ways to select a delegate and an alternate from the first department.

Similarly, for the second department with 10 members, there are 10 choices for selecting a delegate and 9 choices for selecting an alternate. Hence, there are 10 × 9 = 90 ways to select a delegate and an alternate from the second department.

For the third department with 7 members, there are 7 choices for selecting a delegate and 6 choices for selecting an alternate. Thus, there are 7 × 6 = 42 ways to select a delegate and an alternate from the third department.

To find the total number of ways to select delegates and alternates from all three departments, we multiply the number of choices for each department together:
56 × 90 × 42 = 211,680.

Therefore, there are 211,680 ways to select a delegate and an alternate from each department.

A survey was conducted on 300 person asking the types of programmes they like.
The result is given in a pie-chart. Observe the pie-chart and answer the following
questions.

Answers

Answer:

can i seee the chart pls so i can answer ur question?

Step-by-step explanation:

i need help pls help

i need help pls help

Answers

x is 5 cus in right triangle if it is 30* the ab^2=ac^2+cb^2 x was ab/2

Answer:

x is 5 

Step-by-step explanation:

The scale of the building plans is 1 in. = 4 ft. A room that is 6 inches long in the drawing is actually how many feet long?

Answers

24 ft long is the answer

Answer:

24 ft.

Step-by-step explanation:

Since 1 in. = 4 ft, and you have 6 inches, then you do 6 multiplied by 4, and you get 24 ft.

please help this is due today

please help this is due today

Answers

Answer:

55

Step-by-step explanation:

180 - 120 = 60

65 + 60 = 125

180 - 125 = 55

so that missing angle is 55 degrees and

x would be 55 because of alternate angles

(I did the 1st step wrong the first time so sorry)

its 55 , trust and believe me .
Other Questions
first solve 3/4 x 4 using repeated additionThen, solve 4 x 3/4 using multiplication and division..Hint: the answer should be the same for both.Will give brainliest and 5 stars with thanks when two answers are there,because I need 2 answers for brainliest. So please help asap!!! A boat travels for 4 hours at a constant speed of 35. 25 km/h. How far does the boat travel? 105 km 120 km 141 km 352 km. Consider the parallelepiped with adjacent edges u = 7i + 4j + k v = i + j + 4k w = i + 4j + 3k Find the volume. V= ... Why do the men fall silent as they pass the Japanese cities?They are told to quiet down by the lieutenant, who fears that the Japanese will retaliate if they celebratetoo hard.They realize the horrible destruction that happened, and even though it's what ultimately freed them, theyrecognize how horrific and fatal this war was for both sides.Rewatch Consider the following plant transfer function G(S) = 10.000/s(s+30)(5+100) a) Design a lead controller that will provide a closed-loop bandwidth of 30radls, and a phase margin of 45 Your design must be based on " must be based on frequency response methods. Identify the part of the earth that is like the bark of a tree can yoalll help me cuz ion kno what dis is Yall please answer quickly!! I promise to give brainliest! merry Christmas (: Which of the following is a correct description for the relationship between DNA, Chromosomes, and Genes?Question options:genes are made of chromosomes and contains many DNA's DNA is made of genes and contains many chromosomes genes are made of DNA and contain my chromosomes chromosomes are made of DNA and contain many genes You are a newsvendor selling San Pedro Times every morning. Before you get to work, you go to the printer and buy the days paper for $0.40 a copy. You sell a copy of San Pedro Times for $1.30. Daily demand is distributed normally with mean = 330 and standard deviation = 66. At the end of each morning, any leftover copies are worthless and they go to a recycle bin.a. How many copies of San Pedro Times should you buy each morning? (Use Excel's NORMSINV() function to find the correct critical value for the given ?-level. Round your z-value to 2 decimal places and final answer to the nearest whole number.)Optimal order quantity 3.) Is the trait shown recessive or dominant? Solve the non-homogeneous IVP: y'(t)=-X(t) (x(0)= 1,7(0) = 0 a. using the matrix exponential method, b. using any other method of your choice. . Find a Fundamental Matrix 0(t) and solve the IVP: x'= 3y 1 y' = 3* (x(0) = 1, y(0)=0 , for x(t) and y(t). Barbara is studying the process of ecological succession in a temperature forest ecosystem her goal is to construct an explanation based on evidence observations of which of the following locations is most likely to provide useful evidence for Barbara to cite What is the answer? Which minor partys role in the 2000 presidential election contributed to the defeat of the Democratic party candidate?the Progressive Partythe Green Partythe American Independent Partythe Libertarian Party rebecca's colleagues, who are also research scientists, are unable to replicate the results of her published findings. in this scenario, rebecca has most likely committed an act of Summarize one or two environmental concerns that Europe and Russia face. Are there any similarities in these issues? How can they learn from each other? Be sure to discuss a different environmental concern than your classmates, so that all issues will be addressed.The czars ruled the Russian Empire with Russification and the sword. In your opinion, were these methods a good strategy by the czars to rule their people and to assimilate them into one? What are some drawbacks that you would expect from such immersion of cultures into one?Supranationalism is an attempt to unify the European nations and to form the European Union (EU). Countries in Europe that have strong economies and stable governments can join the EU. One of the stronger nations, the United Kingdom (UK), has recently exited the EU and no longer has to comply with EU rules and regulations. Provide some discussion on how the UKs exit from the EU would positively or negatively affect both the UK and EU economies, their political and military standing in NATO, and their relations with the rest of the world. In your opinion, was this a good move by the UK to divorce from the EU? Eadweard Muybridge created a series of images using numerous cameras withshutters that were automatically triggered. His work greatly influenced developmentsin which of the following areas?(1 point)biomechanical science and athletic mechanicsObiomedical engineering and athletic developmentagricultural engineering and animal husbandryspace flight science and horse training Events $A$ and $B$ are disjoint. Find $P\left(A\ \text{or}\ B\right)$ when $P(A)=\frac{2}{3}$ and $P\left(B\right)=\frac{1}{5}$ . Express your answer as a fraction in simplest form. which of these classic works of literature is a sequel? Identify the open interval on which the function is increasing or decreasing. (Enter your answers using interval notation.) h(x) = cos 3x/2 , 0 < x < 2 increasing Your answer is incorrect. decreasing)