Mathematics College

Help pleaseeeeeeeeeee

Answers

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

km/hr

Hope that helps! :)

Step-by-step explanation:

Related Questions

Which expression represents the perimeter of the of the figure below?

Answers

Answer:

10x - 20

Step-by-step explanation:

Hello! Remember you have to write complete questions in order to get good and exact answers. Here I'll help you assuming some things. First of all, for a two dimensional shape, the perimeter is defined as the distance around it. Suppose we have a rectangle whose dimensions are:

7
Anna and Paddy take part in the same fun run.
Anna completed the fun run in 2 hours.
Her average speed was 6 kilometres per hour.
Paddy completed the fun run in 90 minutes.
(a) Work out Paddy's average speed in kilometres per hour.

Answers

Answer:

I wanna say 4.6 kmph

Step-by-step explanation:

6(average) /2(hr)=3kmph

1.20(hr) / 6 (kmph) = 4.6

If Anna and Paddy take part in the same fun run. Anna completed the fun run in 2 hours. Her average speed was 6 kilometres per hour. Paddy completed the fun run in 90 minutes. Then 4.5 km/h is Paddy's average speed

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Given,

Anna and Paddy take part in the same fun run. Anna completed the fun run in 2 hours.

Her average speed was 6 kilometres per hour.

Paddy completed the fun run in 90 minutes.

We need to find paddys average speed in kilometres per hour.

Let us convert 2 hrs to minutes=120 minutes

6/120=x/90

Apply cross multiplication

90×6=120x

540=120x

Divide both sides by 120

x=4.5

Hence 4.5 kilometer per hour is the Paddy's average speed.

To learn more on Equation:

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Need answer quick please

Answers

In line 3, it will be 7x to the power 2 not 4.

So, the answer will be

[tex]{7x}^{2} + 2x - 1[/tex]

To the nearest tenth of a centimeter, how tall is a cylinder with a radius of 8.4 cm and volume of 3119.5 cm3. Give the approximate answer rounded to 2 decimal places.

Thank you!

Answers

Answer:

r=8.4cm

v=3119.5cmcube

volume of a cylinder

=pie r square height

pie=22/7

22/7×8.4×8.4×h=3119.5cm cube

221.76cmsquareh=3119.5cm cube

___________________________

221.76cm square(both sides)

h=14.07cm

The height of the cylinder is h = 14.09 cm

Given data:

To find the height of the cylinder, the formula for the volume of a cylinder: V = πr²h, where V is the volume, r is the radius, and h is the height.

Given that the radius is 8.4 cm and the volume is 3119.5 cm³, substitute these values into the formula and solve for h.

3119.5 cm³ = π(8.4 cm)²h

To isolate h, divide both sides of the equation by π(8.4 cm)²:

h = 3119.5 cm³ / (π(8.4 cm)²)

Now, calculate the approximate value of h as:

h ≈ 3119.5 / (π * 8.4²)

≈ 3119.5 / (3.14 * 70.56)

≈ 3119.5 / 221.1264

≈ 14.0989 cm

Hence , the height is 14.09 cm

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PLEASE HELP ME ASAP!!!!!!
The length of a house on a blueprint is 4 inches, and the building itself is 32 feet long. If the width of the house is 40 feet, how wide is it on the blueprint?
28 in.
5 in.
10 in.
8 in.

Answers

Answer:

10 inches

Step-by-step explanation:

10 inches :)):)):):):):);):);)

Find the value of x to the nearest degree.
A. 58
B. 52
C. 38
D. 32

Answers

Answer:

52⁰

Step-by-step explanation:

Cos x⁰ = adjacent/hypotenus

Cos x⁰ = 8/13

Cos x⁰ = 0.615

x⁰ = cos^-1 (0.615)

x⁰ = 52⁰

Determine if 0.875 is rational or irrational and give a reason for your answer.

Answers

It is rational as it can be expressed as the quotient of two (nonzero) integers (for example, 875 divided by 1000)

I need help ASAP!!!! BRAINLIEST!!!!

Answers

i think the radius is 2 (:

Answer:it is A or D

Step-by-step explanation:

Interactive digital version available - link: https://access.openupresources.org/curricula/our6-8math/en/supporting-material/7569/index.html
After a while, Jada picks up a coin that seems different than the others. She notices that the next day, only half of the coin is left!
On the second day, only 1/4 of the coin is left.
On the third day, 1/8 of the coin remains.
What fraction of the coin remains after 6 days?

What fraction of the coin remains after 28 days? Write an expression to describe this without computing its value.

Does the coin disappear completely? If so, after how many days?

Answers

Answer:

After 6 days 1/64 of the coin will remain, while after 28 days 1/268435456 will remain. Now, it will never completely disappear, since it can always be reduced to a larger number.

Step-by-step explanation:

Since after a while, Jada picks up a coin that seems different than the others, and she notices that the next day, only half of the coin is left, while on the second day, only 1/4 of the coin is left and, on the third day, 1/8 of the coin remains, to determine what fraction of the coin remains after 6 days, what fraction of the coin remains after 28 days and determine if the coin will disappear completely, the following calculation must be performed:

1/2 ^ 6 = X

0.015625 = X

1/64 = X

1/2 ^ 28 = X

0.0000000037252902984619140625 = X

1/268435456 = X

Thus, after 6 days 1/64 of the coin will remain, while after 28 days 1/268435456 will remain. Now, it will never completely disappear, since it can always be reduced to a larger number.

Which of the statements is false about the additive identity?
A. if y is the additive identity, then x+y=x
B. the value of the additive identity is 0
C. Adding the additive identity corresponds to making no movements at all on the number line
D. it is the number you add to another number to get 0

Answers

B) If y is the additive identity is 0

It is said that if you are with someone else, you do not have to outrun the wolf, you just
have to outrun the other person.
Suppose that a wolf can run 15 m/s, you can run 10 m/s and your friend can run 5 m/s.
You start 15 meters away from the wolf and your friend starts 20 meters, away from the
wolf.
Set up three equations and then answer using your perfered method
(table/graphing/theory): Who gets caught first and when (in seconds)?

Answers

Answer:

The three equations:

y = 15x, wolfy = 10x + 15, youy = 5x + 20, friend

Compare the equations with wolf and you and with wolf and your friend:

15x = 10x + 155x = 15x = 3 seconds

It will take 3 seconds before you are caught by the wolf

15x = 5x + 2010x = 20x = 2 seconds

It will take 2 seconds before your friend is caught by the wolf, he will be caught a second before you.

X is proportional to ✓y where y>0 .
y is increased by 44%
work out the percentage increase in x

Answers

Answer:

20%

Step-by-step explanation:

x = k√y

Increase y by 44%. y becomes 1.44y.

x = k√(1.44y)

x = 1.2k√y

x went from k√y to 1.2k√y.

(1.2k√y)/(k√y) = 1.2

x is now 1.2 times greater than it was, so the increase in x is 20%.

Answer: 20%

A set of data is normally distributed with a mean of 455 and a standard deviation of 25. What percent of the data is in the interval 405–455?
a.
47.5%
c.
68.3%
b.
49.85%
d.
34.15%

Answers

Answer:

a. 47.5%

Step-by-step explanation:

1. Find the z-score for 405: 405-455/25 = -2

2. Find the z-score for 455: 455-455/25 = 0

3. Using technology or a chart, find the percentage that corresponds with the z-scores: -2 = 0.0228 or 2.28%, AND 0 = 0.5000 or 50%

4. Find the difference between the percentages by subtracting them: 50% - 2.28% = 47.72%

5. Most of the time, the answers aren't exact, so since 47.72% is closest to 47.5%, I would say that's the answer.

write each of the following expression without using absolute value.
|6m-54|, if m<9

Answers

9514 1404 393

Answer:

54 -6m

Step-by-step explanation:

For values of m < 9, the argument of the absolute value function is less than 0. Then the expression evaluates to ...

-(6m -54) = 54 -6m

Which is the best type of graph to show the number of jellybeans eaten by each child at a summer camp?

A. pictograph

B. stem and leaf plot

C.double bar graph

D. line graph

Answers

Option A . Pictograph

Answer:

A. Pictograph

Step-by-step explanation:

Because this graph has a row for each kid so it would show what they want you to

PLEASE HELP :DDDDDDDDDD

Answers

Ok start off by finding the base first and the equation of finding the area of the square is A=bh
A=11 x 11= 121 cm^2

Next find the area of one triangle and the equation is A=1/2bh
A=1/2(11)(10)
A=55 cm^2

Multiply the area of one triangle by 4 since there are four triangles and it should equal to 220 cm^2. You then add this to the base and the final answer should be 341 cm^2.

I hope this helps

Answer:

341 cm²

Step-by-step explanation:

A=11 x 11= 121 cm²

A=1/2(11)(10)

A=55 cm²

Multiply the area of one triangle by 4 since there are four triangles.

=220 cm²

220+121=341cm²

50 POINTS Vanessa has 6 dimes and 2 pennies. Joachim has 1 dollar, 3 dimes, and 5 pennies. Jimmy has 5 dollars and 7 pennies. They want to put their money together to buy a game that costs $8.00. Do they have enough money to buy the game? If not, how much more money do they need? SHOW WORK

Answers

Vanessa: a dime = 10 cents = 0.10

A penny = 1 cent = 0.01

6 x 0.10 = 0.60

2 x 0.01 = 0.02

Total = 0.60 + 0.02 = 0.62

Joachim : a dollar = 1.00

3 x 0.10 = 0.30

5 x 0.01 = 0.05

Total = 1.00 + 0.30 + 0.05 = 1.35

Jimmy: total = 5.00 + 0.07 = 5.07

Total of all 3: 0.62 + 1.35 + 5.07 = $7.04

This is less than $8 so they don’t have enough.

They need: 8.00 - 7.04 = $0.96 more

Answer:they need more money

Step-by-step explanation: they need 96 more cents

Calculate the volume of a cuboid with length 5.6m breadth 4.1m, height 3.4m

Answers

Answer: 78.064 cubic meter

Step-by-step explanation:

volume of a cuboid=length × breadth × height.

=5.6*4.1*3.4

=78.064 cubic meter

Solve for x given the picture
I need an explanation
Will mark brainliest

Answers

Answer:

C. 10

Step-by-step explanation:

all the other answers are negative so the triangle would be impossible to make

Brainiest as promised pls

Here are summary statistics for randomly selected weights of newborn girls: n=250, x_=32.9 hg, s=6.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level. Are these results very different from the confidence interval 31.9 hg < μ < 34.5 hg with only 19 sample values, x_ = 33.2hg, and s = 2.9 hg?

Answers

Answer:

Step-by-step explanation:

Here are summary statistics for randomly selected weights of newborn girls: n=250, x_=32.9 hg, s=6.9 hg. Construct a confidence interval estimate of the mean. Use a 95% confidence level.

The confidence interval of mean

=32.9 ± 1.96 × 6.9/250

Confidence Interval = 32.9 ± 0.5382

Mr. Duval paid $2,730 to rent a home for 6 months. Ms. Phee paid $5,496 to rent a home for 1 year. Which of the following is true?

Α. Ms. Phee paid $3 less per month than Mr. Duval.

B. Ms. Phee paid $3 more per month than Mr. Duval.

C. Mr. Duval paid $460 per month to rent the home.

D. Ms. Phee paid $455 per month to rent the home.

Answers

Answer:

$2.730 divided by 6 equals 455

$5,496 divided by 12 equals 458

458-455=3 so the answer is B

PLEASE HELP!!
What value if m makes the equation true??
m+2m-6 =-12+2m
m=?????

Answers

I think m = -6, but im not 100% sure

Please help, test due in 2 hours! Will give good review and brainliest.

Answers

Answer:

B. Ellipse

...............................................

Find (-5)(-2)(5)( - 1)(-4)

Answers

200. Multiply all starting from left to right

Answer: 200

Step:
(-5)(-2)=10
10(5)=50
50(-1)=-50
(-50)(-4)=200

Find the area please..........................................

Answers

Answer:

Should be 216

Step-by-step explanation:

Find the lateral area of the cylinder to the nearest tenth.

Answers

Answer:

Lateral area of the cylinder = 62.85 cm²

Step-by-step explanation:

Given:

Diameter of cylinder = 10 cm

Radius of cylinder = 10 / 2 = 5 cm

Height of cylinder = 2 cm

Find:

Lateral area of the cylinder

Computation:

Lateral area of the cylinder = 2πrh

Lateral area of the cylinder = 2(22/7)(5)(2)

Lateral area of the cylinder = 2(22/7)(10)

Lateral area of the cylinder = (440/7)

Lateral area of the cylinder = 62.85 cm²

there is a 60% chance that your flight will leave on time
What are chances it will not leave on time

Answers

A 40% chance

Unless!
*wispers*
It’s a trick question?

Answer:

The correct answer would be 40

Step-by-step explanation:

40+60=100

giving brainliest *easy*

Answers

Answer:

1256

Step-by-step explanation:

HELP ASAP I WILL MARK BRAINLEY

The diagram below shows Cameron's budgeted expenses for a trip he is planning. O $46.08 O 580 O $1,200 O $4,608 CLEAR ALL Cameron has budgeted $240 for meals during his full trip. What is the total budget for the trip?
A $46.08
B $80
C $1,200
D $4,608

Answers

Answer:

C $1,200

Step-by-step explanation:

The computation of the total budget fro the trip is as follows:

Since it is given that the budgeted amount for meals is $240 i.e. equivalent to 20%

By this information we can easily compute other budgeted expenses

For Lodging

= $240 × 0.32 ÷ 0.20

= $384

For transportation

= $240 × 0.36 ÷ 0.20

= $432

For Gifts

= $240 × 0.12 ÷ 0.20

= $144

Now the total budget for the trip is

= $384 + $240 + $432 + $144

= $1,200

im crying please help me so much

Answers

Answer:

A and D

Step-by-step explanation:

Other Questions

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