Answer these two questions pls (ill give u brainly)

Answer:

1a)81 b)54 c)27 d)0

Step-by-step explanation:

for number one the answer is 27 x what is given

Answer:

Step-by-step explanation:

You want the number of small cubes painted on 3, 2, 1, and 0 faces if the outside surface of a cube comprised of 27 small cubes is painted. You also want the height of 200 L of water in a tank of 50 cm radius with a 20 cm radius hole in the middle.

The number of cubes painted on 3 faces is the number of corner cubes: 8.

The number of cubes painted on 2 faces is the number of center-edge cubes, 12.

The number of cubes painted on one face is the number of center-face cubes, 6.

The number of cubes with no painted faces is the number of cubes buried inside, 1.

The painting is ...

The total is 27, as it should be.

The area of the base of the part holding water is ...

  π(50² -20²) = π(2500 -400) = 2100π cm²

The height of 200 L of water will be h, where the volume of the figure is ...

  V = Bh

  V = (2100π cm²)h = 200·1000 cm³

  h = 200/(2.1π) cm ≈ 30.3 cm

The height of the water in the tank will be about 30.3 cm.

__

Additional comment

When working with volumes in liters, it is often convenient to work with dimensions in decimeters (dm), where 1 dm = 10 cm. This is because 1 dm³ = 1 L.

Here, the area is π(5² -2²) = 21π dm², so the height is (200 dm³)/(21π dm²) ≈ 3.03 dm = 30.3 cm.

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Can someone please help me with this question the instructions are to use a calculator to find the perimeter (the solid lines and curves) of each figure. The perimeter of each semicircle can be found by using the equation 1/2 pi d (the place where I put the words pi has the pi symbol, and d is just a variable. Also use 3.14 as pi, and the top part is cut off a little bit, but it still counts as a full semi circle. Please help me.

Heeeelllpppp pplz will give brilliant :(

When born a baby weighed 8.5 pounds and gained 1.6 pounds per week for the first 10 weeks. which of the following functions accurately model the number of pounds,p, the baby weighs as function of the number of weeks,w, since it was born?
A. p= 8.5w+1.6 B. p=w/1.6 +8.5
C. P=1.6w + 8.5 D. P= w /8.5+1.6

Which shows the following fraction written as both a decimal and a percent?
2/500
A 0.004; 0.4%
B 0.04; 4%
C 0.002; 0.2%
D 0.025; 2.5%

I REALLY NEED HELP FAST! Name the marked angle in 2 different ways.

Use the picture were it says a, b, c, d those are the steps

Given the function below, where f(1)=2, what is the value of f(2)?

f(n)=3f(n-1)+4n


Given the function below, where f(1)=2, what is the value of f(3)? (refer to previous question)

f(n)=3f(n-1)+4n

Which expression represents the phrase below?
3 fewer than a number, p

Please give explain for why is that sign​

Which of the following numbers that when decided by 1/2, give a result less that 1/2? Select all that apply.
A. 3/8
B. 3/16
C. 6/25
D.1/3

A new store is handing out small gifts to the customers who come in. Elizabeth is handing out pens of various colors.She has determined that the chance of a customer receiving a blue pen is 0.008. Ricardo is handing out tote bags of various colors. He has determined that the chance of a customer receiving a blue tote bag is 0.04. What statement describes the likelihood of a customer getting a blue tote bag or a blue pen?

It is very unlikely that a customer gets a blue tote bag, but it is very likely that a customer gets a blue pen.

It is very unlikely that a customer gets a blue tote bag, and it is very unlikely that a customer gets a blue pen.

It is very likely that a customer gets a blue tote bag, but it is very unlikely that a customer gets a blue pen.

It is very likely that a customer gets a blue tote bag, and it is very likely that a customer gets a blue pen.

Help if you are sure!

DONT send links

A block of iron has dimensions of 1 cm x 2 cm x 5 cm and has a
mass of 799
What is its density? (V=lxwxh)

Giving Brainliest No Links
In degrees Celsius, what is the temperature shown on the thermometer?

A) 12° c
B) 17° c
C) 63° c
D) 65° c

Argh Tree diagrams are SO hard! help me , please?

An unknown number y is 10 more than an unknown number x. The number y is also x less than 3. The equations to find x and y are shown below. y = x + 10 y = −x + 3 Which of the following statements is a correct step to find x and y? (4 points) a Add the equations to eliminate x. b Multiply the equations to eliminate y. c Write the points where the graphs of the equations intersect the x-axis. d Write the points where the graphs of the equations intersect the y-axis.

Dina has a number cube that she uses for a game.
The number cube has the shape of a triangular pyramid, with 4 faces numbered 1 through 4. Dina rolls the number cube 100 times and records the results. She calculates the relative frequency of each outcome.

Outcome 1 2 3 4
Relative Frequency 0.23 0.24 0.26 0.27

Which statements about Dina's experiment are true?
Select each correct answer.
The relative frequencies in the table are reasonably close.
The theoretical probability of rolling an even number is 0.51.
The relative frequency of rolling an even number is 0.51.
The number cube is not likely to be fair.

Can someone help me with this?

CAn I GeT An ANsWer PweASe

PLZZZ help with this its pretty simple!

Dylan started with 30 baseball cards and gave away x cards. Sebastian started with 40 cards and gave away twice as many cards as Dylan did.

How many cards did Dylan give away if they had the same number if cards left?
A: 20
B: 10
C: 5
D: 15

Which rules has a scale factor of 5 and shifted up and to the left?

please help the t0 means to​

Can someone help me?

My teacher said to put in simplisit form. and not to estimate.
I will give brainlisit !!!

Which of the following measurements of capacity is the largest?

A. milliliter
B. liter
C. kiloliter
D. centiliter

Can someone please help me with this

PLSSS HELPPPPPPP CORRECT ANSWERS PLSSSS

what’s (6x10^3) / (3x10^2)

express your answer in scientific notation

Pls help with this. I am try to do it help 2 sentences!!!!!!!!!!!!!

Is this correct? If not whats the correct answer

write an equivalent expression for 12×+1​