Mathematics Middle School

can u plsss help if you d tysm!!

Answers

Answer 1

2,2,and2 because there are 2 sides of a coin, 2 cards, and 2 marbles

Related Questions

What is the exact circumference of a circle that has a radius of 10 cm?

Answers

Answer:

C = 20π cm

Step-by-step explanation:

If you want the "exact circumference," use π instead of the usual approximation 3.14 or 3.14159.

Here the circumference is C = 2π(10 cm), or C = 20π cm.

The exact circumference is 62.83 cm.

20 POINTS PLEASE HELP ASAP!!!
The graph shows the depth, y, in meters, of a shark from the surface of an ocean for a certain amount of time, x, in minutes:

Part A: Describe how you can use similar triangles to explain why the slope of the graph between points A and B is the same as the slope of the graph between points A and C.

Part B: What are the initial value and slope of the graph and what do they represent?

Answers

Step-by-step explanation:The slope of AB and BC are the same.

The initial value is 60 m and the slope is 40 m/min.

Step-by-step explanation:

The graph shows the depth, y, in meters, of a shark from the surface of an ocean for a certain amount of time, x, in minutes.

See the graph attached.

Part A : If we consider two right triangles one Δ ABD and Δ BCE, where D(2,100) and E(1,60) points.

Now, those two triangles are similar and hence the slope of line segment AB will be .

Again, the slope of the line segment BC will be

Hence, and the slope of AB and BC are the same. (Answer)

Part B : From the graph, it is clear that the initial value of the graph is 60 m and it represents that initial position of the shark i.e. at t = 0 min, the shark was at a depth of 60 m from the water surface.

The slope of the graph is 40 means the rate of change of distance from the Ocean surface of the shark with respect to time in minutes will be 40 m per min. (Answer)

Brooklyn was writing an article for her school paper and read a report that said 2 out of 20 items purchased at a clothing store were returned. The percent of items returned to the clothing store was _______ %

Answers

Answer:

10%

Step-by-step explanation:

1/20 = 5/100

5/100 = 5%

1/100 = 1%

2/20 = 10/100

10/100 = 1 x 10 = 10%

Hope this helps :D

2/20 = 1/10. 1/10=10%

PLZZZ help with this its pretty simple!

Answers

Answer:

It should be D, [tex]x^4 - 2x^3 + 7x^2 -12x - 4[/tex]

Step-by-step explanation:

Since, the equation given in the question is the factored form of the equation D. It can be solved using FOIL (First Outside Inside Last):

x * x³ = [tex]x^{4[/tex]

x * 7x = 7x²

x * 2 = 2x

-2 * x³ = -2x³

-2 * 7x = -14x

-2 * 2 = -4

This all would add up to ⇒ [tex]x^{4}[/tex] - 2x³ + 7x² + (-14x + 2x) -4

Simplifying the parenthesis further would give the option D as the answer.

I have no idea what this is

Answers

Answer:

4cm 6cm 10cm

Step-by-step explanation:

it's very easy you just need to use c squared equals a squared plus b squared

you dont have to help me but can if u want and if u do then ill be appreciated

Answers

Answer: -40 or 40

Step-by-step explanation:

y = -1.5x + 60

y = 60 divided by -1.5

= -40

Hope this helps!

-40 or 40 (I needed more characters

To pass her test, Tori needs to answer at least 65% of the questions correct. If there were 60
questions and she got 42 correct, did she pass? All work MUST be shown to justify your
answer.

Answers

1) change 65% to a decimal = .65

2) .65 • 60 = 37.2 questions need to be right

3) since she got 42 correct, that is greater than 37.2, so she passed.

OR

1) 42/60 = 0.7

2) 0.7 to a percent = 70%

3) since she got a 70% on the test, she passed.

Step-by-step explanation:

To obtain score of 80% on entire exam means the student have to answer

(80/100)×80 = 64 correct answers

Student have already answered 75% of the first 60 questions correctly meaning

(75/100)×60=45 correct answers from first 60 questions

Remaining correct answers s/he have to answer

64-45=19

So from remaining 20 questions s/he have to answer 19 correct questions that is

20 × (x/100) = 19

x = 19 ×(100/20)

x = 95%

Dont guess!
I will mark brainliest if its correct!

Answers

Answer:

Step-by-step explanation:

Try out the possibilities:

18/-2=-9

12/-2=-6

-6/3=-2

-6/-2=3

12/3=4

18/3=6

-9,-6,-2,-3,4,6

Hope this helps !

what kind of motion do people have on an escalator

Answers

Answer:

Not everyones is the same just before I begein explaing.. A lot of people get motion sick some don't some like going on them

Step-by-step explanation:

Answer:

uh i dont think really any motion

Step-by-step explanation:

just because they arent moving till they get off

Please Show work and explain.

1. The enrollment in dance class is currently 80 students and is increasing at a rate of 4 students per term. The enrollment in choir is 120 students and is decreasing at a rate of 6 students per term. After how many terms will the number of students in dance equal the number of students in choir? How many students will be in each class?

2. Horizon Phone Company charges $15 a month plus 10 cents per text. G-Mobile charges a flat rate of $55 per month with unlimited texting. At how many texts would the two plans cost the same? Which plan is the better deal if you send 200 texts per month?

Answers

Answer:

1. 4 terms

2a. 400 texts

2b. Horizon phone company

Step-by-step explanation:

1. 80 + 4 x 4 = 96

120 - 6 - 6 - 6 - 6 = 96

2a. 55-15=40x10=400

2b. You need 400 texts to eaven out for g mobile.

HELP ASAP WILL GIVE BRAINLIEST!

Answers

Answer:it a

Step-by-step explanation:

the answer is c because the definition of multiplicative inverse is :

In mathematics, a multiplicative inverse or reciprocal for a number x, denoted by 1/x or x−1, is a number which when multiplied by x yields the multiplicative identity, 1. The multiplicative inverse of a fraction a/b is b/a. For the multiplicative inverse of a real number, divide 1 by the number.

Teri wanted to hit 24 home runs this season. However, she hit 125% of her goal. How many home runs did Teri hit this season?

Answers

Answer:

30 home runs

Step-by-step explanation:

0.24×125=30

hope this helps

30...................

PLASE HELP!!!!! IM DESPERATE

Answers

Answer: 1 is C 2 is F

Step-by-step explanation:

yeah

Jonathan went to the movies with $48 he earned at his after-school job. The ticket cost $8.75. He spent $7.45 for refreshments. How much money did he have left?

Answers

Answer:

8.75+7.45=16.2. 16.2 is equal to $16.20 so 48.00-16.20=31.8. Jonathan had $31.80 left.

Step-by-step explanation:

Please help will give brainliest

Answers

Answer: 69 cents

Step-by-step explanation:

First you find the area of the circle (A = radius squared * pi) then you multiple the are by 5.5. That will give you the total volume of the can then to find what profit from the can you would multiple the volume by .01 to get .69.

Answer:

Rounded to nearest hundred

Here we will tell you what 69 is rounded to the nearest hundred and also show you what rules we used to get to the answer.

Remember, we did not necessarily round up or down, but to the hundred that is nearest to 69.

First, 69 rounded to the nearest hundred is:

100

When rounding to the nearest hundred, like we did with 69 above, we use the following rules:

A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.

B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.

C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.

SO IT IS 100

But if it was nearest tenth that would be 70

Step-by-step explanation:

What is the volume of the cylinder and i need how you got the answer plz. Thank you

Answers

Answer:

471.24 inches is the volume of the cylinder.

Basically, since the diameter of the cylinder is 10 inches the radius will be 5 inches.

The formula to figure out the volume of a cylinder is V=πr2h.

So using that formula the volume of the cylinder is 471.24 inches.

Multiply 150 by the substitute your teacher instructed you to use for Pi. The answer will vary, but should be around 471.

V = Pi*R^2*H
V = Pi*5^2*6
V = Pi*25*6
V = Pi*150

I need someone to help me today in math(I'm working on functions)
Ill be giving away points and brainliest all day
Here is the first one

A candle burns down at the rate of 0.5 inches per hour. The original height of the candle was 6 inches.

Part A: Write a list of 6 ordered pairs to show the height of the candle in inches (y) as a function of time in hours (x) from the first hour after it started burning. For example, the point (0, 6) would represent a height of 6 inches after 0 hours. Explain how you obtained the ordered pairs. (5 points)

Part B: Is this relation a function? Justify your answer using the list of ordered pairs you created in Part A. (2 points)

Part C: If the rate at which the candle burnt was 0.3 inches per hour instead of 0.5 inches per hour, will the relation continue to be a function? Explain your answer using input and output values. (3 points)

Answers

9514 1404 393

Answer:

A. (0, 6), (1, 5.5), (2, 5), (3, 4.5), (4, 4), (5, 3.5)

B. is a function

C. is a function

Step-by-step explanation:

Both relations are functions.

A relation is NOT a function if the same input value maps to two different output values. Virtually any relation involving time as an input will be single-valued: a measure can only have one value at any given time (ignoring quantum physics).

A: If height decreases 1/2 inch per hour, then some ordered pairs could be ...

(hours, inches) = (0, 6), (1, 5.5), (2, 5), (3, 4.5), (4, 4), (5, 3.5)

For each additional hour, 0.5 inches was subtracted from height.

B: There is only one output for each input, so the relation is a function.

C: Yes, the relation is still a function. There is still only one output value for each input value.

MATH SMARTIES I WILL GIVE BRAINLIEST PLEASE GIVE EXPLINATION THE HWERK IS PERCENTS

Answers

Answer:

a. 28

b. 6.5

c. 30

Step-by-step explanation:

1% = 80÷100

35% = 0.8×35

1% = 0.65

0.65 × 10 = 6.5

1% = 0.5

60% = 0.5×60

Answer:

6.5

another way you can get these answers is by cross multiplying. In order to do that you need to identify the percent, the whole (of), and the part (is). In identifying the whole and the part, look for the word is, and the word of. The number that is associated with is either the part or the whole. (There is 6 out of 80, what is the percentage?) always set the percentage out of a hundred.

So from there we set up the proportion:

ONE

(we don't know the part in any of them)

X/80=35/100 (cross multiply by putting the numbers on top of each other for the fractions)

TWO

X/65=10/100

THREE

X/50=60/100

Hope this helps, have a good day and remember to be tiger fierce!! :) (also, sorry that it is late.)

add b/2A the square of 1/2 of the coefficient of the x term to each side of the equation i dunno how to type it out

Answers

Answer:

1/4ab

Step-by-step explanation:

Two fair number cubes are rolled. The table below shows the possible outcomes for each number cube and their sum.

+ 1 2 3 4 5 6
1 2 3 4 5 6 7
2 3 4 5 6 7 8
3 4 5 6 7 8 9
4 5 6 7 8 9 10
5 6 7 8 9 10 11
6 7 8 9 10 11 12

What is the theoretical probability of rolling two numbers with a sum of 11?

Answers

Answer:

2 box probability=12/2

22/12 is answer

Step-by-step explanation:

Hope this helps!!

Hopefully, i am not late

PLEASE HELP!!!!!!
Deja and Allen have a blueprint of their backyard. However, they need to increase it in order to see it better.

1. How can we apply a scale factor of 2 to this shape?

Answers

Answer:

Double Both Sides of the square to increase the size. Scale Factor: 2/3

Step-by-step explanation:

What he said...............

pls help i will mark brainlyest

Answers

Answer:

2016

Step-by-step explanation:

tbh not really sure but i tried :/

Answer:

144

Step-by-step explanation:

Tyrone is working with two other students to build a border around the school’s triangular garden. Each student brought in one side of the border, but they all used different units to measure the side lengths. The first side is 312 inches long, the second side is 20 feet long, and the third side is 12 yards long. If the measurements need to be in feet, will the three border pieces make a right triangle?

Convert the first side into feet using a proportion.

Answers

Answer:

NO, the these three border pieces will not make a right triangle

Step-by-step explanation:

Perform the necessary conversions:

1. 312 in converts to

312 in 1 ft

----------- * ------- = 26 ft

12 in 1

2. 20 ft

3. 12 yd converts to

12 yd 3 ft

------------- * --------- = 36 ft

1 yd 1

So the three different side lengths are 26 ft, 20 ft and 36 ft.

For the three pieces to make a right triangle, these measurements must satisfy the Pythagorean Theorem:

26² + 20² = 36², or 1296

676 + 400 = 1076

The Theorem is NOT satisfied, and so NO, the these three border pieces will not make a right triangle.

Answer and explanation?

Answers

C!
One dollar = $1
And in a math equation is usually a decimal
56 cents is .56 because it’s not a whole new If you add them together you get $1.56 :) hope it helps

A right cubic prism has edges of 3 1/4 inches. How many cubes with side lengths of 1/4 inches would be needed to fill the prism?
A 9.75 cubes
B 34.33 cubes
C 2,197 cubes
D 4,394 cubes

Answers

C. 2,197 cubes. Each side length contains 13 cubes. To find the total, you just figure out (13)(13)(13)=2197

please help!
giving extra points and brainlest if you show on a piece of paper on how to solve-thank you please be serious or i will take away points.

Answers

Step-by-step explanation:

I hope this is what you're looking for

Hope this helps ! Thx for spreading the info in the comment!

GIVING BRAINLIEST
Look at the stem-and-leaf plot. What is the mode?

A) 0
B) 1
C) 20
D) 31

Answers

The only reasonable answer is B.

It has to be (B) because that’s the only way

What is the lower quartile (q1) of the box plot below? PLEASE HELP ASAP

Answers

Answer:

24.5

Step-by-step explanation:

The lower quartile is the first side of the box. If u look on the line, the end of the box is between 24 and 25. Hope this helps!

Answer: 24.5

Step-by-step explanation: Hope this helps!!

23s = 322

what is s

pls and thanks!

Answers

Answer:

Step-by-step explanation:

322/23=14 FILLER FILLER

S is just simple multiplication because if the total is 322 than the s is just a simple way of saying what is the number so the answer is 14 just 23 x 14 =322

Cindy took her cousins to a Hornets game. She spent $180. Twenty percent was for food. How much money was not spent on food

Answers

Answer:

Step-by-step explanation:

36$

$36.
I need 20 characters

Other Questions

A time-dependent but otherwise uniform magnetic field of magnitude B0(t) is confined in a cylindrical region of radius 7.5 cm. Initially the magnetic field in the region is pointed out of the page and has a magnitude of 5.5 T, but it is decreasing at a rate of 13 G/s. Due to the changing magnetic field, an electric field will be induced in this space which causes the acceleration of charges in the region.Edit: What is the direction of the acceleration of a proton placed at the point P1, 2.5 cm from the center? (Counterclockwise)What is the magnitude of this acceleration, in meters per square second? Calculate the wavelength of a baseball (m = 155 g), in meters, moving at 32.5 m/s. NUMBERS ONLY, NO UNITS. Reminder. J = kg.m? 1= H h = 6.626 x 10-34 J . s ENTER IN SCIENTIFIC NOTATION AS XeY or Xe-Y (e.g., Enter 1.23 x 104 as 1.23e4 or 5.76 x 10 as 5.76e 8). As indicated in the subquestions. 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