Mathematics College

hi please help......​

Hi Please Help......

Answers

Answer 1

Answer:

9/20

Step-by-step explanation:

45%=45/100

hope this helps

Related Questions

NEEDED ASAP PLZ!!!!!!!!!

The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a student government activity. The teacher draws a random sample from the following groups:

All teachers in the school
All boys in each grade
All students in each grade
All students in the social studies club
Which group best represents the population he should take a random sample from to get the best results for his survey? (5 points)

Group of answer choices

All teachers in the school

All boys in each grade

All students in each grade

All students in the social studies club

Answers

Answer:

All students in each grade

WEEEEEEEEELLLLLLLLLLLL What is 1+1 :0 too confusion for my 1 braincell

Answers

Answer:

WELLLLLLLLLLLLLLLLLLLLLL it's 11 obviously. (or 2 ;P)

Step-by-step explanation:

i have 1/2 of a braincell :)

Answer:

1 + 1 is 2 BUT

2 + 2 is 5 ILLUMIATI CONFIRMED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Step-by-step explanation:

in a decimal[tex]\\4\frac{1}{5} \f}[/tex]

Answers

In decimal for its equal too 4.2
That would be 4.2! Good luck

A jar contains 8 red marbles, 10 blue marbles, and 2 yellow marbles. One marble is chosen at random. The color is recorded in the table and then it is returned to the jar. This is repeated 40 times. What is the experimental probability of choosing a yellow marble? Express your answer as a percent to the nearest whole number.

RED/14 BLUE/16 YELLOW/10

Answers

Answer:

1/4 or 25%

Step-by-step explanation:

Experimental probability:

Pe = number of event occurred / number of attempts

Probability of yellow:

Pe(yellow) = 10/40 = 1/4 = 25%

Which point is on the graph of y = 4x + 2? A (-2, -5 o B. (-4, -15) C. (4. 18) D. (0.1)​

Answers

Answer:

The answer should be C

Step-by-step explanation:

I hope that helps you!

Please no links, will report!

Answers

9514 1404 39318

Answer:

  XY = 11.25

Step-by-step explanation:

Corresponding sides are proportional, so ...

  XY/AB = XZ/AC

 XY = (AB)(XZ/AC) = 5(18/8)

  XY = 11.25

Can I please have help I will mark brainly est

Answers

Answer:

Hey mate......

Step-by-step explanation:

This is ur answer......

I believe its SQUARE! Cuz it says 4 right angles.....

Hope it helps!

mark me brainliest pls.....

Follow me! :)

Which expression is equivalent to 4(5r+9)?

Answers

The answer would be 20r+36

(Urgent) Worth 10 points 7.3

Answers

Answer:

m∡CBD = 135°

Step-by-step explanation:

m + 3m = 180

4m = 180

m = 180/4

m = 45

angle CBD is 3(45) = 135 degrees

What is equivalent to 0 = 2x2 - 16x – 18 when completing the
square?

Answers

Answer:

x = 1

x = -9

Step-by-step explanation:

(2x2 +  16x) -  18  = 0

2x2 + 16x - 18  =   2 • (x2 + 8x - 9)

x2 + 8x - 9

 -9    +    1    =    -8

     -3    +    3    =    0

     -1    +    9    =    8

 2 • (x + 9) • (x - 1)  = 0

2   =  0

x+9 = 0  

x = -9

x-1 = 0

x = 1

x2 + 8x - 9  = 0

  x2+8x = 9

(x+4) • (x+4)  =

 (x+4)2

x2+8x+16 = 25 and

  x2+8x+16 = (x+4)2

(x+4)2 = 25

x = -4 + √ 25

 x2 + 8x - 9 = 0

has two solutions:

 x = -4 + √ 25

  or

 x = -4 - √ 25

           

           - B  ±  √ B2-4AC

 x =   ————————

                     2A

A   =     1

                     B   =    8

                     C   =   -9

B2  -  4AC   =

                    64 - (-36) =

                    100

 -8 ± √ 100

  x  =    —————

                   2

  x  =  ( -8 ± 10) / 2

x =(-8+√100)/2=-4+5= 1.000

or:

x =(-8-√100)/2=-4-5= -9.000

Answer:  x = 1

x = -9

find the length of AD. HELP MEEEE​

Answers

Answer:

5.42

Step-by-step explanation:

hope this helped!! :)

HELpPppPppPppPpppPppPppppppppppppppppppoopppppoppopppppppppp
Jdjxjjxx

Answers

Answer:

£140

Step-by-step explanation:

First count up the amount of full squares, then you see the partially filled squares and try find the match for it to fill the square. It ends up being 24 squares, meaning 24 square feet. That multiplied by £5, as that is the cost of red wood, gives you the answer of £140

A coin is tossed 100 times. WHich portion would you use to find how many times you'd expect the coin to land on heads?

Answers

Answer:

i would use 1/2 because theres 2 sides on a coin and if you flip it 100 times then the probability of it landing on heads is about 50 out of 100

Step-by-step explanation:

1/2 because there are two sides

What is the definition of an irrational number?

A.
a negative number

B.
a number that can be expressed as a fraction, , where p and q are integers and q is not equal to zero

C.
a number that cannot be expressed as a fraction, , where p and q are integers and q is not equal to zero

D.
a number that can be written as a fraction but not as a decimal

Answers

It should be D but if i’m wrong is for sure C

The ratio of tables to chairs at the furniture store is 1:6. There are 30 chairs. How many tables are there?

Answers

Answer:

5 : 30

Step-by-step explanation:

30/6 = 5

1 * 5 = 5

5 : 30

Hope it helps

Please mark me as the brainliest

Thank you

The answer is 5, pretty simple just divided 30 by 6 which equals 5

10 Mrs. Randall bought tickets to the art museum for all the fifth-grade students. Each ticket cost $12, and the total cost of the tickets was $1,152. How many fifth-grade students are there?​

Answers

Answer:

Step-by-step explanation:

12s=1152 (divide each side by 12 to isolate s)

s=96

So there were 96 students.

Evaluate-n, when n=-4

Answers

Answer:

4

Step-by-step explanation:

-n =

-(-4) =

+4 =

4

Hope that helps!

-Sabrina

A paint manufacturer wants to determine the average drying time of a new interior wall paint. For n = 50 test areas of equal size he obtained a sample mean drying time of ¯x = 63.3 minutes and a sample standard deviation of s = 8.4 minutes. (a) (5 points) Construct the 95% confidence interval for the true mean µ. (b) (5 points) Suppose the population has a normal distribution, construct the exactly 95% confidence interval for the true mean µ. (c) (5 points) Suppose the population has a normal distribution, construct the 95% prediction interval for a new observation.

Answers

Answer:

a) the 95% confidence interval for the true mean µ is 60.971, 65.629

The exact 95% confidence interval for the true mean µ is 60.971, 65.629

P (x`- ∝ s/√n<u <x`+ ∝ s/√n) = 0.95

Step-by-step explanation:

n= 50

x`= 63.3

s= 8.4 minutes

∝= 95%= ±1.96

The formula for calculating the confidence interval is:

x`± ∝ s/√n

Putting the values

x`± 1.96 s/√n

63.3 ± 1.96(8.4/√50)

63.3± 2.3287

60.971, 65.629

a) the 95% confidence interval for the true mean µ is 60.971, 65.629

b) Putting the values

x`± 1.96 s/√n

63.3 ± 1.96(8.4/√50)

63.3± 2.3287

The exact 95% confidence interval for the true mean µ is 60.971, 65.629

c) The prediction level tells that the drying time of the wall from 60.971 to 65.629 minutes must be in the range 95 % of the time.

And is given by

P (x`- ∝ s/√n<u <x`+ ∝ s/√n) = 0.95

Round the fraction to 0, 1/2, or 1.



2/9

Answers

It rounds to zero! lmk if you need anything else

Find the lateral surface area of the figure below. Round the the nearest tenths place.
help please !

Answers

Answer: lateral surface area = 119.4cm^2
r = 2 cm.
h = 9.5 cm.

Steps:
Lateral surface area of a cylinder = 2πrh
r = radius h = height π = pi

2π(2)(9.5)
2π(19)
38π = 119.38052

Work out m and c for the line:
y = x + 3

Answers

Step-by-step explanation:

Given equation

y = x + 3

Comparing with y = mx + c so

Slope (m) = 1

y-intercept (c) = 3

Hope it will help :)❤

Answer:

I don’t know if this is right, but I hope this helps!

Step-by-step explanation:

Anthony needs some kitchen
appliances He found a mixer
for $90 and a microwave for
$42 What is the total bill
after adding 8% sales tax?

Answers

$142.56 cuz you add the total which is 90+42=132
Then add 132 + 8% equals 142.56

y=3/2x-9
I need to find the x-intercept and the y-intercept with work plsss

Answers

Hi there!

x-int: (6, 0)

y-int: (0, -9)

y = 3/2x - 9

Begin by finding the x-intercept. The x-intercept is located where y = 0, therefore:

0 = 3/2x - 9

Isolate for x by adding 9 to both sides:

9 = 3/2x

Divide both sides by 3/2x:

9 * 2/3 = x

x = 6. Thus, the x-intercept is at (6, 0).

Find the y-intercept by finding the y-value at which x = 0:

y = 3/2(0) - 9

y = -9. The y-intercept is at (0, -9).

Find the area of the figure shown below and chose the appropriate result

Answers

Answer:

it's the first option or A

Step-by-step explanation:

well 9 * 10 is 90 which leaves you with the numbers 14 and 3 we used 10 so that gives us 4 and 3 multiply those and you get 12 so add 12 to 90 and you get 102 thus the answer is A

Find the value of x.
Pleaseeee I needddd helpppp!!!!!!

Answers

Answer:

x = 40

Step-by-step explanation:

Measure of an external angle of a circle = ½(difference of the intercepted arcs)

This means that:

½(PQ - RS) = m<T

m<T = x/2

PQ = (x + 70)°

RS = (x + 30)°

Plug in the values

½((x + 70) - (x + 30)) = x/2

½(x + 70 - x - 30) = x/2

½(x - x + 70 - 30) = x/2

½(0 + 40) = x/2

½(40) = x/2

20 = x/2

Multiply both sides by 2

20*2 = x

40 = x

x = 40

The amount that Jimmy paid for his meals the four days, $6.45, $21.38, $1.99, $7.99, $16, $0, $7.99, $18.95, $4.30, $10.35, $18.20. Calculate the median

Answers

Answer:

$7.99

Step-by-step explanation:

Arrange numbers in numerical order: $0, $1.99, $4.30, $6.45, $7.99, $7.99, $10.35, $16, $18.20, $18.95, $21.38.

Count how many numbers you have, 11.

11 is an odd number so, the number in the middle of the data set is the median.

Final answer: $7.99 is the median.

The baseball player threw the ball 30 feet to his teammate. How far would the throw be if measured in yards?

Answers

Answer:

10

Step-by-step explanation:

to convert to yard from feet you have to divide by 3

30/3-10 so he through the ball 10 yards

have a great day :D

quanto é dois mais dois divido por dois

Answers

Answer:

la respuesta es 2 (dois)

Guided Practice
Directions: Describe each pair of ratio. Write P if it is a proportion and NP if
not proportion.
1.) 4:6 = 20:24
2.) 9: 6 = 36:24
3.) 2:5 = 15:45
4.) 3:5 = 6:10
5.) 40: 16 = 5:2​

Answers

Answer:

1) NP

2) P

3) NP

4) P

5) P

Step-by-step explanation:

re-write all the pairs into fractions

1.)  [tex]\frac{4}{6} =\frac{20}{24}[/tex]   {4 x 5 = 20}  and {6 x 4 = 24}     5 ≠ 4  

(basically both the underlined numbers need to be the same)

I can do an explanation for each one if you need; just comment, cause I'll be on here for a while.  Good luck! :D

Can someone help with this math problem please

Answers

Answer:

0.40p-20

Step-by-step explanation:

hope this helps.

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Which of the following actions should the assistant take?Leave the unpaid balance on the record until the end of the revenue cycle.Wait until an overpayment of the approximate amount balances the deficit.0 Adjust the patient's account to reflect no unpaid charges and write off the balance,Request payment at the point of service during the patient's next visit.CONTINUEPREVIOUS Im what ways did the government become involved in the economy during WW1? A student is standing next to a vertical flagpole. The top of the student's shadowcoincides with the top of the flagpole's shadow as shown.not to scaleThe student is 62 inches tall. The student estimates that the distance from the flagpoleto the point where the student is standing is between 21 and 22 feet. The student alsoestimates that the length of the student's shadow is between 7 and 7 feet.Based on the given information, what are the least and greatest possible heights, infeet, of the flagpole? 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