can someone help i really need help

Can Someone Help I Really Need Help

Answers

Answer 1

9514 1404 393

Answer:

  1. no problem is stated

  2. cube: V = s³; A = 6s². prism: V = lwh; A = 2(lw +h(l+w))

  3. 400 cm²

Step-by-step explanation:

1, 2. Answers shown above. The formulas are from your list of formulas.

__

3. Cube surface area is ...

  A = 6(20 cm)² = 2400 cm²

Prism surface area is ...

  A = 2((40 cm)(20 cm) +(10 cm)(40 cm +20 cm))

  A = 2(800 cm² +10(60) cm²) = 2(1400 cm²) = 2800 cm²

The difference in areas is ...

  2800 cm² -2400 cm² = 400 cm² . . . . difference in surface area


Related Questions

Please help! It’s late! Big grade! Help asap! Extra points!!

Answers

Answer:

The answer is B

Step-by-step explanation:

Luis counts the total number of ducks swimming on a pond each day. On Monday he counts 1 duck. On Tuesday he counts 2 ducks. On Wednesday he counts 4 ducks. On Thursday he counts 8 ducks. If the pattern continues how many ducks will Luis count on Sunday ? And what is the pattern?

Answers

Answer:

64

Step-by-step explanation:

the pattern is multiplying by 2 every day. if thursday there is 8 then friday there is (8X2) 16, saturday there is (16X2) 32, and sunday there is (32X2) 64.

If y = 3 ab + 2 b 3, what is y when a = 1 and b = 2

Answers

Answer:

18

Step-by-step explanation:

3 x( 1x2) = 6 plus...

2 x 2 x 3 =12

so 6 plus 12 is 18

Answer:

y =18

Step-by-step explanation:

y = 3 × 1 ×2 + 2 ×2× 3

y = 6 + 12

y = 18

Calculate the muscular work completed by four men. Four men carry 20 boxes each up a ramp as shown. Each box weighs 5 pounds. Remember that muscular work is calculated by multiplying the weight by the vertical distance. In the calculation, disregard the weight of the men and consider only the muscular work done carrying the boxes.
A. 600 ft-lbs
B. 1200 ft-lbs
C. 2400 ft-lbs
D. 3600 ft-lbs

Answers

Answer:

2400 foot pounds

Step-by-step explanation:

The amount of work done by the four men is  1200 ft-lbs. so option B is correct.

How to calculate work done?

The muscular work done by each man is equal to the weight of the boxes carried multiplied by the vertical distance moved.

The weight of each box is 5 pounds, and each man carries 20 boxes, so the total weight carried by each man is:

20 boxes x 5 pounds/box = 100 pounds

The vertical distance moved is the height of the ramp, which is 30 feet.

Therefore, the muscular work done by each man is:

Muscular work = weight x vertical distance

Muscular work = 100 pounds * 30 feet

Muscular work = 3000 ft-lbs

Since there are four men carrying boxes, the total muscular work done is:

Total muscular work = 4 * 3000 ft-lbs = 12000 ft-lbs

Therefore, the answer is B. 1200 ft-lbs.

To know more about work done check:

https://brainly.com/question/13662169

#SPJ3

Which multiplication equation that represents the question: how may 3/8s fits into 5/4

Answers

Answer:

B

Step-by-step explanation:

You would usually divide to see,

but also multiplying the number you can fit in 5/8 and the number you multiply it by.

Using the elimination method, what is the solution to the system of equations? 6x + 6y = 12 6x - 5y = 12

Answers

Answer: x = 2, y = 0

Step-by-step explanation:

11y = 0

y = 0

6x + 6(0) = 12

6x = 12

x = 2

seriously though can somebody help me?

Answers

Answer:

2

Step-by-step explanation:

what is the Evaluate of
1. 8!=
2.
10!=
3. 6!=
10!
9!!
4.
5.
7!
4!2!​

Answers

Answer:

632,814 - The value of the digit 6 is 6 hundred-thousands, or 600,000. 632,814 - The value of the digit 3 is 3 ten-thousands, or 30,000. 632,814 - The value of the digit 2 is 2 thousands, or 2,000. 632,814 - The value of the digit 8 is 8 hundreds, or 800.

Answer:

8!=40320

10!=3628800

6!=720

7!=5040

4!=24

2!=2

Order numbers from least to graders using 1,2,3,4

Answers

I could be wrong
4 = 8.6
3= 3 pi
2=
1 3with 200
Sorry if it’s wrong and hope that helped

can someone tell me how to solve quadratic equations by graphing ? like the steps

Answers

Answer:

another way of solving a quadratic equation is to solve it graphically. The roots of a quadratic equation are the x-intercepts of the graph. Graph the equation. This could either be done by making a table of values as we have done in previous sections or by computer or a graphing calculator

Step-by-step explanation:

hey guys it would mean the world to me if u helped me with this (geometry)

Answers

Answer:

Statements Reasons

1.

AB

bisects DAC 1. Given

A 2. 1  2 2. Defn  Bisector

3. C and D are right angles 3. Given

A 4. C  D 4. All Right ’s 

S 5.

AB  AB

5. Reflexive

6. ∆DAB  ∆CAB 6. AAS

7.

BC  BD

7. CPCTC

select all 4 of the correct answers, and I'll give you brainliest

Answers

Answer:1,2,3,5

Step-by-step explanation:

If the frightened dot ran from -34 to -66 for 5 minutes then, the distance is __ units and the average speed is __ units per minute.

Answers

Answer:

Step-by-step explanation:

distance traveled=-34-(-66)=-34+66=32 units

average speed=32/5=6.4 units /min

Which expression is equivalent to –(3 + 4x)?

Answers

Answer:

-3-4x

Step-by-step explanation:

Which fraction is equivalent to 4 over -9 ? (5 points)

A) 4 over 9

B) -4 over -9

C) 9 over 4

D) -4 over 9

Answers

Answer:

c is the best answer for this

Here is a prism with a pentagonal base. The height is 8 cm
What is the volume of the prism

Answers

Answer:

232

Step-by-step explanation:

A​ salesperson's commission rate is ​5%. What is the commission from the sale of $36,000 worth of​ furnaces? Use pencil and paper. Suppose sales would double. What would be true about the​ commission? Explain without using any calculations.

Answers

Answer:

a. $1,800

b. Commission would double as well.

Step-by-step explanation:

Commission paid on $36,000 worth of furnaces with a rate of 5% is:

= Amount of sales * commission rate

= 36,000 * 5%

= $1,800

If the sales were to double, the commission would be based on double the amount so it would double as well.

= 36,000 * 2

= $72,000

Commission = 72,000 * 5%

= $3,600

Commission therefore doubled.

Answer:

1,800

Step-by-step explanation: I dont know but this is the right awnser

The ratio of the measures of the sides of a triangle is 8: 15: 17, and its perimeter is 480 in.. Find the measure of the shortest side of the triangle.

Answers

Answer:

96

Step-by-step explanation:

The ratio of the measure of sides of a triangle are 8:15:17

The perimeter is 480

8x + 15x + 17x= 480

40x= 480

x = 480/40

x = 12

Therefore the measure of the shortest side of the triangle can be calculated as follows

8x

8×12

= 96

The diameter of a circle has endpoints (2,-6) and (-4,-16).
Enter an equation for the circle in standard form.

Answers

Answer:

[tex](x + 1)^{2} + (y + 11)^{2} = 34[/tex]

Step-by-step explanation:

First find the midpoint of the segment  from (2, -6) to (-4, -16)

((2 - 4)/2, (-6 - 16)/2)

(-2/2, -22/2)

(-1, -11) is the midpoint and is the center of the circle

Now find the distance between the 2 given points and divide by 2 to get the radius of the circle

d = [tex]\sqrt{(2 + 4)^{2} + (-6 + 16)^{2} }[/tex]

  = [tex]\sqrt{6^{2} + 10^{2} }[/tex]

  = [tex]\sqrt{36 + 100}[/tex]

  = [tex]\sqrt{136}[/tex]

r = [tex]\sqrt{136}[/tex]/2

[tex]r^{2}[/tex] = 136/4 = 34

Equation of circle with center at (-1, -11) and radius = [tex]\sqrt{34}[/tex] is

[tex](x + 1)^{2} + (y + 11)^{2} = 34[/tex]


i need help asap! math problem

Answers

Answer:

4

Step-by-step explanation:

cos(-π) = -1 [in radians]

3-(-1) = 4

There are many ways to answer this but, I'll try to explain it.

You can see that you are computing a limit when some n approaches negative PI. You get to substitute negative PI instead of n and compute cos(-pi) which is -1.

Then compute f(x) - (-1) = 3 - (-1) = 4 which is a result.

The way you can imagine cos(-pi) or cos(-90deg) is by dragging point in a unit circle beneath x-axis and to the bottom y-axis (-90 angle), the y coordinate tells you the cosine value at (-90) and because you have dragged the point on the unit down to y-axis the value is -1.

Hope this helps.

help me please!! a b c or d

Answers

Answer:

the answer of the matrix is =b the second one

Al, Barb, and Calvin shared a large pepperoni pizza after school. Al ate 1/3 of the pizza, Barb ate 1/4 of the pizza. and Calvin ate the rest. What is the ratio of Al's share of the pizza, to Barb's share, to Calvin's share?

a. 4:3:5

b. 3:4:7

c. 5:4:3

d. 3:4:5

e. 4:5:7

Answers

Answer:

A: 4:3:5

Step-by-step explanation:

Al ate 1/3 of the pizza. 1/3 can also be written as 4/12. Barb ate 1/4 of the pizza. 1/4 can also be written as 3/12. 4/12 plus 3/12 is equal to 7/12. One whole would be 12/12, so to get the remaining amount of pizza, do 12/12-7/12, to give you 5/12. 4:3:5. We needed to make all of the fractions have a common denominator in order to solve this particular problem.

What is the experimental probability of rolling a number greater than four?
A 4/9
B 5/18
C 1/3
D none of the above
help me please

Answers

Hello hope your doing well, I think it is 4/9. Hope this helped!!

Leon created a scale drawing of the school library in her art class. In the drawing the length of library is 13 inches. The length of actual library is 78 feet. Which scale Leon used to create the scale drawing of school library?

Answers

Answer:

1 inch is 6 feet

Step-by-step explanation:

Answer:

1 inch represents 6 feet

∪ω∪

Step-by-step explanation:

1 inch represents 6 feet

Can someone help me?


What's 4/5 of 55?

Answers

Answer:

44 is 4/5 out of 55 (44/55 = 4/5)

Step-by-step explanation:

55 can be divided into fifths.

1/5 = 11 or 11/55

11 x 4 = 44

Hopefully this helps :3 Sorry if wrong :( Plz mark brainiest if correct :D Your bootiful/handsome! Have a great day luv <3

-Bee~

what is the slope, please​ 18,5 and -18, 5

Answers

Answer:

The slope is a zero slope. This means that the line is a straight, horizontal line.

Step-by-step explanation:

Use the slope formula.

[tex]m = \frac{\text{rise}}{\text{run}} = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

5-5/-18-18 = 0/-36

Find x and y. I have no idea how to solve this.

Answers

Answer:

Step-by-step explanation:

sikeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Write the mixed number as a percent.
[tex]1 \frac{1}{4} [/tex]

Answers

125% I am pretty sure

triangles and rectangle

Answers

Step-by-step explanation:

Area of triangle (A1)

= 1/2 * b *h

= 1/2 * 1 * 1

= 1/2 ft

Area of rectangle (A2)

= L * b

= 3 *1

= 3 ft

Total area

= A1 + A2

= 1/2 + 3

= (1 + 6 ) / 2

= 7/2 ft²

= 3.5 ft²

Hope it will help :)

Simplify the following expressions. Assume all variables are positive.
Exponents in simplified form should all be positive.
(81)
1.
493 · 494
2.
3
(81)
3.(16x24)

Answers

1) 49^43/12
2)1/9
3) 2x^6
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