Mathematics High School

Find the Surface Area of the following figure.

a. 64
b . 32

Answers

Answer 1

Answer:

Step-by-step explanation:

Surface area=2(wl+hl+hw)

w=4, h=4, l=2

2(4(2)+4(2)+(4)(4))

2(8+8+16)

2(16+16)

2(32)

Answer 2

The surface area of the figure is a. 64
16•2=32
8•4=32
That gives you 64

Related Questions

1.
Prove that the roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k

Answers

The roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k

The equation is given as:

x^2 + (1 - k).x+k-3 = 0

For an equation to have real root, then the following must be true:

[tex]b^2 \ge 4ac[/tex]

In x^2 + (1 - k).x+k-3 = 0, we have:

a = 1

b = 1 - k

c = k - 3

So, we have:

[tex](1 - k)^2 \ge 4 * 1 * (k - 3)[/tex]

Evaluate

[tex]1 - 2k + k^2 \ge 4k - 12[/tex]

Collect like terms

[tex]k^2 - 2k - 4k + 1 + 12 \ge 0[/tex]

[tex]k^2 - 6k + 13 \ge 0[/tex]

Using a graphing calculator, the value of k is all real numbers

Hence, the roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k

Answers

Answer:

its A

Step-by-step explanation:

Trust me

Answer:

Step-by-step explanation:

I did it on edge

what is the length of 5cm

Answers

Answer:

1.9685

Step-by-step explanation:

If you are thinking in inches and if you need to simplify its pretty easy.

Scarlett and Alyssa work at a dry cleaners ironing shirts. Scarlett can iron 15 shirts per hour, and Alyssa can iron 35 shirts per hour. How many total shirts would be ironed between the two workers if Scarlett worked 5 hours and Alyssa worked 10 hours on a given day? How many total shirts would be ironed between the two workers if Scarlett worked x hours and Alyssa worked y hours on a given day?

Answers

Answer:

25x + 35(2x) = 380

25x + 70x = 380

95x = 380 so

x = 4

then i think that mean it might be 8 then im not completly sure

Plz help due tomorrow

Answers

2x + 4 1/5 = 9
2x = 9 - 4 1/5
2x = 5 1/5
2x divided by 2 = x
5 1/5 divided by 2 = 13/5 (2 3/5, or 2.6)
x = 13/5 (2 3/5, or 2.6)

a car travels a distance of 50 km in 30 minutes. what is the average speed

Answers

Answer:

100 km/hour, or 16.67 km/minute

Step-by-step explanation:

What do I do I don’t know the answer

Answers

Answer:

B) 114.511m^3

Step-by-step explanation:

Formula of a cylinder is πr^2 x h

r = radius (half of diameter)

h = height

Since it is 3/4 full you only do 3/4 of the height so- 0.75 x 9.60 which equals 7.2

Half of the diameter is 2.25. 2.25^2 = 5.0625.

The volume of the cylinder = 5.0625π x 7.2

By solving this, you will get approximately 114.511 m^3 as your answer.

A band director is trying to decide what music to play for the halftime show. To get a sample, the director divides the band into groups based on their grade (freshmen, sophomores, juniors, and seniors). Then she randomly chooses a group and surveys every member of the chosen group. Which sampling method was used?
cluster sampling
simple random sampling
stratified random sampling
systematic random sampling helppppppo

Answers

Answer:

random sampling

Step-by-step explanation:

Answer:

Step-by-step explanation: Cluster sampling

Guided Practice

Find the slope and y-intercept of the equation.y=[tex]\frac{2}{3}[/tex]x+1

A.
1 ; [tex]\frac{2}{3}[/tex]

B.
23; 1

C.
23; −1

Answers

Answer: B. 2/3; 1

Use the slope-intercept form y = m x + b to find the slope m and y-intercept b .

Slope:

(2) /(3)

y-intercept:

( 0 , 1 )

Step-by-step explanation:

Find the slope and y-intercept of the equation. y = (2)/(3)x + 1

Find the Slope and y-intercept

STOP AND HELP PLZzzzzzzz

Answers

Answer:

k = 2

Step-by-step explanation:

9 = k(6) - 3

12 = 6k

k = 2

Answer:

k = 2

Step-by-step explanation:

We know that in the coordinates (6, 9) 6 is X and 9 is Y. So, we can just plug that into the equation in the problem to get 9 = 6k - 3. Then, after solving, we get the answer as k = 2.

MS. Potts washed 2/3 of her laundry. Her son washed 1/4 of it. Who washed most of the laundry? How much of the laundry still needs to be washed?

Answers

Answer:

2/5 is greater than 1/4

so ms. potts washed most of the laundry

10cm
What is the height of the triangle is the area is 40 ?

Answers

Answer:

8 cm

Hope that helps!

Step-by-step explanation:

What is the GCF of 4x^ 2 +6x

Answers

Answer:

The GCF of 4x^2 + 6x

is. (2x )

hope it helps

The answer is 2 because it just it

You made a profit of $65,000. You would like to invest the $65,000 into an account that pays you an annual compounded interest rate of 5.5%. You want to make annual withdrawals over the next 10 years such that by the end of this 10 year period, the amount remaining in the account will be zero dollars. Determine, from the given information, the amount of the annual withdrawals. please Round your answer to the nearest cent.

Answers

Answer:

d. $8,623.40

Step-by-step explanation:

EDGE 2021

A pack of gum is in the shape of a rectangular prism with a length of 5 centimeters and width of 2 centimeters. The volume of the gum is 60 cubic centimeters. What is the height of the pack of gum? The height of the pack of gum is cm.

Answers

The height is 6cm
Volume= length x width x height
60=5x2xH
60/(5x2)=H
6=H

Can you please factor x^2-2x-31?

Answers

Multiply the coefficient of the first term by the constant 1 • -31 = -31

Find two factors of -31 whose sum equals the coefficient of the middle term, which is -2 .

-31 + 1 = -30
-1 + 31 = 30

Observation : No two such factors can be found !!
Conclusion : Trinomial can not be factored

PLEASE HELP HURRY

Thanks!!!!!!

This is math :)

Answers

Answer:

DON'T PRES THAT LINK THAT IS A HACK AND VIRUS

Step-by-step explanation:

HOPE THIS LETS YOU REMEMBER ABOUT NOT PRESSING THESE LINKS!

Suzy makes 20 dollars an hour at her job. Bill only makes 10 dollars an hour but he has a starting bonus of 20. When will Suzy and Bill make the same amount of money for the same number of hours worked? How much will they both earn at the same time?

Answers

Answer:

2 hours

Suzy would earn $40

Bill will earn $40

they will both earn $80

Step-by-step explanation:

The total amount suzy earns is a function of the total hours worked. Let t represent time

total income of suzy = $20t eqn 1

Bill's income = starting bonus + variable pay

= $20 + $10t

We are looking for when they would earn the same amount :

20t = $20 + $10t eqn 2

collect like terms and solve for t

10t = $20

t = 2 hours

Substitute for t in either eqn 1 or 2

20(2) = $40

Suzy would earn $40

Bill will earn $40

they will both earn $80

Can someone help me with this one?

Answers

the answer is x=24 :))

y- 4/5=1
what does y equal to?

Answers

Answer:

y=1.8

Step-by-step explanation:

first change the fraction into a decimal.

4/5 =0.8

plus the 0.8 to both sides

y=1.8

Answer:

[tex]y - \frac{4}{5} + \frac{4}{5} = 1 + \frac{4}{5} \\ y = \frac{5 + 4}{5 } \\ y = \frac{9}{5} [/tex]

The value of k lies between 2.2 and 2.3.
Select all possible values of k.

Answers

Answer:

Its easy... 5 and 5.04!

Step-by-step explanation:

You have to look at it properly. It says "The value of SQUARE ROOTED K."

So all you have to do is square root them and whatever is in between 2.2 and 2.3 is ur answer. Ur answer 5 and 5.04.

The values of √k that lies between 2.2 and 2.3 is 5 and 5.04.

What is an equation?

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

Given that √k falls between 2.2 and 2.3

For k = 1.49, √1.49 = 1.22 which is not between 2.2 and 2.3

For k = 4.8, √4.8 = 2.19 which is not between 2.2 and 2.3

For k = 5, √5 = 2.2 3which is between 2.2 and 2.3

For k = 5.04, √5,04 = 2.23 which is between 2.2 and 2.3

For k = 5.3, √5.3 = 2.302 which is not between 2.2 and 2.3

For k = 6, √6 which is not between 2.2 and 2.3

The values of √k that lies between 2.2 and 2.3 is 5 and 5.04.

Find out more on equation at: https://brainly.com/question/2972832

El costo total en pesos para producir calcomanías,es el monto del alquiler del local más 1.5 veces el número de calcomanías producidas por día

Answers

Answer:

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

Help please I will give you the brainliest

Answers

Answer:

x=15 degrees

Step-by-step explanation:

You know that the right angle is split in half to 45 degrees and 3x degrees. Because a right angle is equal to 90 degrees, 3x has to be equal to 45. Therefore, the equation will be 3x=45. You want to make x equal one so you have to divide 3 by each side. The equation will be x=45/3. Simplify that to get x=15. Therefore, x=15 degrees.

If this has helped you, please mark this answer as the brainliest

Mrs. Carver wants to add wall–to–wall tile to the science lab. If she plots the layout of the science lab on a graph with the vertices A(–7, 8), B(3, 8), C(3, –2), and D(–7, –2), what is the area of the science lab?

Answers

Answer:

o dpB

Step-by-step explanation:

Sarah is having people over for her birthday party. If she orders 4 pizzas for 15 people, how many should she order for 30 people?

Answers

Answer: 8

Step-by-step explanation:

Answer: 8 pizzas.

Step-by-step explanation:If she is ordering 4 pizzas for 15 people then that simply means that the fraction is 4/15, 15*2 is 30, so that means that our next fraction (Equivalent fraction) will be like this 4/15 = -/30. What ever. Happens to the numerator must happen to the denominator and vice versa. So 4*2 is 8. So the answer is 8.

What is the value of X

Answers

Answer:

112*

Step-by-step explanation:

The easy way to figure this out is to take the two numbers we do have and add them together. 50 + 62 = 112

We now now the complete angle if that line was not there in the middle. and sice that angle is the same at angle X it is automatically the same, 112. If you don't understand please comment and let me know.

Im so sorry yall!!!!!

Answers

Can you take a better pic sorry if I sound rude it’s not clear

What type of angle relationship is shown?

Answers

Answer:

straight angle

Step-by-step explanation:

9x_15+2x_3=180

11x_18=180

11x=180+18

11x=198

x=198÷11

x=18

Answer:

The angles are a linear pair.

x = 18

Step-by-step explanation:

The angles are a linear pair, meaning the angles add up to 180 degrees.

(9x - 15) + (2x - 3) = 180

11x - 18 = 180

11x = 198

x = 18

For each expression, combine like terms.

Answers

1. 7a
2. 8x-1
3. 7x-4
4. 13x-7

:)

please help!!!!!!!!

if XYZ ~ RST, find RS

Answers

Answer:

RS = 38

Step-by-step explanation:

20x - 12 = 18x + 12

2x = 24

x = 12

3(12) + 2 = 38

The value of the side of triangle RS is equal to 38.

What is the similarity?

If two objects are having the same shape then they will be termed as similar. So in mathematics, if two figures have the same shapes, lines or angles then they are called similar.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the sides of the triangle XYZ are, XY = 5x - 3, XZ = 60 and the sides of the triangle TR = 40, RS = 3x + 2.

The value of RS will be calculated as,

( 5x - 3 ) / ( 3x + 2 ) = ( 60 / 40 )

( 5x - 3 ) / ( 3x + 2 ) = ( 6 / 4 )

20x - 12 = 18x + 12

2x = 24

x = 12

RS = 3x + 2

RS = ( 3 x 12 ) + 2

RS = 36 + 2

RS = 38

Therefore, the value of the side of triangle RS is equal to 38.

To know more about similarities follow

https://brainly.com/question/2650733

#SPJ2

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Find the Surface Area of the following figure. a. 64 b . 32

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Find the Surface Area of the following figure.

a. 64
b . 32