help me asap i need help i dont understand

The volume of the cylinder is 254,571.43cm³.

The surface area of the cylinder is 22,628.57 cm².

A cylinder is a three-dimensional object. It is a prism with a circular base.

Volume of a cylinder =πr²h

22/7 x (30²) x 90 = 254,571.43cm³

Surface area = 2πrh + 2πr²

(2 x 22/7 x 30 x 90) + (2 x 22/7 x 30²)

16, 971.43 + 5657.14 = 22,628.57 cm²

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The correct answers are, C and D

12 2/15...

hope it helps...!!!

a. The graph is attached with the answer.

b. Translated graph is also attached with the answer.

c. The equation of the new graph will  be (2x²+3)-4

It is defined as the relation between two variables, if we plot the graph of the quadratic equation we will get a curved parabola.

a. The graph of the function f(x)=(2x²+3) is attached with the answer. b. The translated graph of the function is also attached with the answer.

If the function is reduced by the constant value 4 then the equation of the function will become:-

F(x)= (2x²+3)-4

Hence the equation of the new graph will  be (2x²+3)-4

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The area of a 2D form is the amount of space within its perimeter. The area of the right triangular prism is 1,200 m².

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm², m², and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The area of the triangular prism can be written as,

Total surface Area

= Area of two rectangle face + Area of two triangular face + Area of base

= 2(17×15) + 2(0.5×30×8) + (30×15)

= 2(255 in²) + 2(120 in²) + 450 in²

= 1,200 in²

Hence, the area of the right triangular prism is 1,200 m².

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Answer:

14.43 years

Step-by-step explanation:

FV = PV (1+i)^n            

    FV = future value = 15100     PV = present value = 6000

     i = period interest in decimal  = .065/2 = =.0325

     n = periods = the question

15100 = 6000(1+.0325)^n

solve for n = 28.86 periods     or  14.43 years    (each period is 6 mos)

[tex] \: \: \: \: \: \: \: \underline {\boxed{ \sf{ \huge{\pink \star }P = a + b + c }}}[/tex]

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

[tex] \longrightarrow\sf{P = a + b + c }[/tex]

[tex]\longrightarrow\sf{P = 5 + 12 + 7}[/tex]

[tex]\longrightarrow\sf{P = 24}[/tex]

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Therefore , the perimeter of triangle is 24 cm

Answer:

c) 21 to 11

Step-by-step explanation:

Finding the ratio :

⇒ Number of blue + Number of yellow : Number of white + Number of black

⇒ 7 + 14 : 1 + 10

⇒ 21 : 11

⇒ 21 to 11

Answer:

Step-by-step explanation:

wow,  they really try to make these probablity questions difficult.  so they say 5 but really,  b/c the 1st one is heads ,  we are tossing the coin 4 more times, to find 3 heads b/c we already got one.    wow,  I'm mad at the teacher that asked this.  :P   Just say 4 flips for 3 heads.

P(H) = heads

P(H) =1/[tex]2^{4}[/tex]   probability is 1/[tex]2^{4}[/tex] because we have two outcomes and four tries.

P(H) = 1/16

P(H>=3)  3 * 1/16

P(H>=3) = 3/16

if there is an argument that you have to take 1/[tex]2^{5}[/tex] into account by the teacher tell them that it was already resolved ,  the first flip is not a "probablity" any longer.  It's heads,  100%  ,  it doesn't affect the next tosses b/c this is a "fair" coin and it's going to land on heads  50% of the time, for every toss.   Just my rant.  :P  

Answer:

500

Step-by-step explanation:

I had the same question this week trust

A percentage is a way to describe a part of a whole. The percentage decrease will be 20%.

A percentage is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25 which is equal to 25%.

To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.

The percentage change is calculated as,

Percentage Change= (Initial Value - Final value)/Initial Value × 100%

Given initially the mass is 80kg, while the final mass is 64 kg, therefore, the percentage change can be calculated as,

Percentage change = (80-64)/80 × 100% = 20%

Hence, the percentage decrease will be 20%.

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The area of pyramid base with a dimension of x + 2 and x - 1 is given as x² + x - 2

An equation is an expression that shows the relationship between two or more numbers and variables.

Let us assume that the base of the pyramid has a dimension of x + 2 and x - 1, hence:

Area of pyramid base = (x + 2)(x - 1) = x² + x - 2

The area of pyramid base with a dimension of x + 2 and x - 1 is given as x² + x - 2

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Answer:

D)6 x squared StartRoot 3 EndRoot units2

Step-by-step explanation: on edge

Answer:

do u have the full sheet?????

Answer: 432

Step-by-step explanation:

The formula for the area of a triangle:

[tex]A=[/tex] [tex]\frac{H*B}{2}[/tex]

Substitute area and base:

[tex]1296 = \frac{H*6}{2}[/tex]

Multiply by the denominator to eliminate the fraction:

[tex]2*1296 = \frac{H*6}{2} *2\\[/tex]

   [tex]2592=H*6[/tex]

Inverse operations to isolate the variable:

[tex]\frac{2592}{6} =H[/tex]

[tex]H = 432[/tex]

Height is 432

Answer:

True

Step-by-step explanation:

i dont see a error-

Answer:

Step-by-step explanation:

Answer:

the answer is 145

Step-by-step explanation:

Answer:

Less than.

square root 50 = 7.07

7.8 = 7.8

Answer:

Squareroot 50=7.07 Approx

So [tex]\sqrt50[/tex] is less than 7.8

Step-by-step explanation:

Pls give Brainliest.

Answer: 5/10

Step-by-step explanation: You can see theirs 10 spaces all around which adds up to 10 count the grays and you get 5. 5/10.

Answer: correct answer is choice c which 5 over 10 .

Step-by-step explanation: as total parts in the circle is 10 and 5 are shaded so 5 over 10 . HOPE IT HELPS YOU .PLEASE GIVE BRAINLIEST .THANKS .

Step-by-step explanation:

number 1 to 100 is in the table bove

use I =1 V=5 x=10 l=50 c=100 d=500 m =1000

for fast multiplication

Answer:

Step-by-step explanation:

x+2y+3z=6

Plane xy

z=0→x+2y+3(0)=6→x+2y+0=6→x+2y=6

x=0→0+2y=6→2y=6→2y/2=6/2→y=3→Point=(x,y,z)=(0,3,0)

It's not the first graph, because at plane xy when x=0, y=2

In the second and third graph, at plane xy, when x=0, y=3

y=0→x+2(0)=6→x+0=6→x=6→Point=(x,y,z)=(6,0,0)

It's not the third graph, because at plane xy when y=0, x=3

It's the secon graph, because at plane xy when y=0, x=6.

Let's check the other planes:

Plane yz

x=0→0+2y+3z=6→2y+3z=6

z=0→2y+3(0)=6→2y+0=6→2y=6→2y/2=6/2→y=3→Point=(x,y,z)=(0,3,0)

In the second graph, at plane yz, when z=0, y=3

y=0→2(0)+3z=6→0+3z=6→3z=6→3z/3=6/3→z=2→Point=(x,y,z)=(0,0,2)

In the second graph, at plane yz, when y=0, z=2

Plane xz

y=0→x+2(0)+3z=6→x+0+3z=6→x+3z=6

z=0→x+3(0)=6→x+0=6→x=6→Point=(x,y,z)=(6,0,0)

In the second graph, at plane xz, when z=0, y=6

x=0→0+3z=6→3z=6→3z/3=6/3→z=2→Point=(x,y,z)=(0,0,2)

In the second graph, at plane xz, when x=0, z=2

Answer:

The slope is 2/3x and the y-intercept is 5.

The solutions to the square root of 0.89 that are correct are Matthew’s, Rhoda’s, and Ming’s.

The square root of a number is the number that divides a number into equal halves. The sign used to denote square root is √.

√0.89 = 0.94

0 < 0.89 < 1

0.9² < 0.89 < 1²

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The mean of a given set 3, 3, 2, 2, 2, 8, 8, 4 is 4. if the number 4 were added to the set then it won't change in mean.

The mean is the average value which can be calculated by dividing the sum of observations by the number of observations

Mean = Sum of observations/the number of observations

The given set is

3, 3, 2, 2, 2, 8, 8, 4

The mean will be

Mean = Sum of observations/the number of observations

= [tex]\frac{3+ 3+ 2+ 2+ 2+ 8+ 8+ 4}{8} \\\\\frac{32}{8} \\\\4[/tex]

if the number 4 were added to the set.

4 + 32 we get 36 and since you added one more number,  we will take a number of terms 9.

So, the mean becomes

= [tex]\frac{36}{9} \\\\4[/tex]

Hence, the mean doesn't change.

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Answer:

The answer is definitely C

Step-by-step explanation:

Following the system of inequalities will graph this solution best on the graph, it is the inequality represented in the graph.

ur wlcm :)

correct me if im wrong

brainliest please?

Answer:

15 slices of pizza was left!

Step-by-step explanation:

First we multiply

3 x 8

Answer : 24 all slices combine

7 slices were ate on the first pizza

2 slices were ate on the second pizza

6 slices were ate on the third pizza

add them all up and get 15

Hope this helps!