A rectangular box has a base measuring a by a meters and height of b meters.
Which of the following represents the surface area of the box?

Answers

Answer 1

Answer:

2a(a+2b) square metres

Step-by-step explanation:

surface area of a box = 2(lw+wh+lh)

l is the length = a metres

w is the width = a mtres

h is the height = b metres

Substitute into the formula

surface area of a box = 2(a*a+ab+ab)

surface area of a box = 2(a² + 2ab)

surface area of a box = 2a(a+2b) square metres

This give sthe surface area of the box


Related Questions

Can someone please help me with math.

Answers

Answer:

C and A

Step-by-step explanation:

So first, off, to find the length of a line, we can use pythagreons theorm.(A^2+B^2=C^2) The cahnge in x squared and the change in y squared will give us C, which is the line length. You can count the tiles like this:

From the bottom point, lets count up the x coordinates till we hit the x coordinates of the top point. I got 3.

Next is the y coordinates.

When I count up until I reach the top point, I get 7. Lets plug these numbers in:

3^2+7^2=C^2

Use the square root on eahc number except for the unknown(C)

=

9+49=c^2

Add the two numbers together:

=

58=c^2

Take square root:

7.61=c^2

This can just be rounded to 7.6

This looks like C

So that is your first answer.

Next we have a table.

We need to look at the section of people that have both brown hair and eyes.

When I look at the table, I see 30 people whom how both these charcteristics.

When you looka the total people in the bottom right corner, you see that there are 120 people.

We do not even need to calculate percentage.

30 is 1/4 of 120.

What is 1/4 of 100%

25%

So the people with both brown eye/hair color is 25%

THis looks like answer A

I hope this helps! :)

When Avani goes bowling, her scores are normally distributed with a mean of 145 and a standard deviation of 12. Using the empirical rule, determine the interval that would represent the middle 68% of the scores of all the games that Avani bowls.

Answers

Answer:(133,157)

Step-by-step explanation:

Using the empirical rule, the interval that would represent the middle 68% of the scores of all the games that Avani bowls is (133, 157).

What is Empirical Rule?

Empirical rule is a rule for normally distributed data which defines that almost all the data observed ranges between three standard deviations from the mean.

Here, the scores of Avani is normally distributed.

Mean, μ = 145

Standard Deviation, σ = 12

By the Empirical rule, about 68% of the data falls within one standard deviation.

That is, in the interval μ ± σ.

Interval is (μ - σ, μ + σ) = (145-12, 145+12) = (133, 157)

Hence the interval is (133, 157).

Learn more about Empirical Rule here :

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ASAP

- How did you get the answer
- Will mark brianlist
- 15 points
- Thank u

Answers

Answer:

C this is because your asking people at random. this makes it so the numbers wont be so one sided because if you use any of the other option it favors one team over another

Step-by-step explanation:

what is the slope of the line in this graph? a5/9 b5/7 c7/5 d9/7​

Answers

Answer:

B. 5/7

Step-by-step explanation:

rise over run

rises 5 units, runs 7 units

Help please Thank you!!!!!

Answers

Answer:

B

Step-by-step explanation:

B because the graph doesn't show a liner line

but im not really sure nout it tho

Please find the missing side and show your work

Answers

Answer:

13.3041346957 Ft. ( Or 13.30 Ft. )

Step-by-step explanation:

Formula: A^2 + B^2 = C^2

Substitution: 9^2 + 6^2 = 117

√177 = 13.3041346957

13.3041346957 ( Rounded ( Hundredths Place ) = 13.30 Ft .

Melissa has 120 vanilla cake pops to sell. Each vanilla cake pops is covered with one topping. 1/2 ​ of the cake pops are covered with chocolate sprinkles. 1/3​ of the cake pops are covered with strawberry sprinkles. * the rest are covered with green sprinkles. How many cake pops are covered with green sprinkles?

Answers

Answer:

The Answer is 20 cake pops are covered with green sprinkles.

Step-by-step explanation:

So if you have 1/2 choclate, 1/3 strawberry, and the rest are green, you first need to convert the Chocolate and the Strawberry into the same fraction. As shown:

Chocolate: 1/2=3/6

Strawberry:1/3=2/6

The rest are Green sprinkles.

So, your equation would be:

Chocolate sprinkles + Strawberry Sprinkles + Green Sprinkles = Total

And their are 5/6 of Chocolate and Strawberry Sprinkles...

That would mean 100 Chocolate and Strawberry Sprinkles!

Because 1/6 of 120 is 20 and multiply that by five and you have 100...

Now that we have that, and we know the rest are green...

we just do 120-100=20

So their you go!

Sorry its long but hope it helps! <3

Hey this is juelz gautreaux parent and she has a hard time on math so i got brainly for her and does not work

Answers

Answer:

Hey! so glad you got this to help your child. I believe this will help them alot, but this is not like a social media app.... don't post things like this unless needed but i hope you enjoy your time here.

Step-by-step explanation:

Answer:

try looking the question up on here

Step-by-step explanation:

if you look up the question word for word on here, (if not exactly)usually there will be a similar problem answered, and use that to base your help off of when working on a hard problem

Distance = Speed & Time
If I increase speed, but hold time constant what happens to
distance? What is this relationship called?

Answers

The distance will increase, the distance is proportional to speed

What is the measure of angle U?

Answers

I think it’s A or D not sure. Hope I helped.

Si a la mitad de un número le restas su tercera parte, y, a este resultado, le sumas 85/2,


obtienes el triple del número inicial. ¿De qué número se trata?

Answers

Answer:

x = 15

Step-by-step explanation:

Llamaremos x al número que buscamos, entonces:

la mitad de x es  x/2, la tercera parte es x/3, y el triple del número es 3*x

De acuerdo al problema :

(x/2 - x/3 ) + 85/2  = 3*x

Esta es una ecuación de primer grado pasamos a resolverla.

( 3*x  -  2*x ) /6   + 85/2  = 3*x

x/6 + 85/2 = 3*x

( x + 255)/6 = 3*x

x  +  255  = 18*x

17*x  = 255

x  = 255/17

x = 15

question on picture!!

Answers

Answer:

Step-by-step explanation:

An angle measuring 60 degrees is measured as 62 degrees. What is the percentage error correct to 3 significant figures?

Answers

Answer:

3.33%

Step-by-step explanation:

math stuuf <3

Need help on this question asap

Answers

need help in this question asap srry i need points

Which of the following is a line segment shown in the drawing?

Answers

I think the question must be which of the following is not a line segment shown in drawing........

Because three of them are and one isn't. If the question is that, then the answer is LJ.

Can u help me please

Answers

Answer:

the answer is e)6

Step-by-step explanation:

you're welcome

solve for the following inequality: -3x+4>19

Answers

Answer:

x<-5

Step-by-step explanation:

[tex]1)\ -3x+4>19[/tex]

[tex]2)\ -3x>15[/tex]

[tex]3)\ -x>5[/tex]

[tex]4)\ x<-5[/tex]

Inequality Form:

x < −5

Interval Notation:

( −∞, −5 )

I have no clue and Would like some assistance

Answers

It’s c (good morning)

If Sean drives 35 miles in 5 hours,how many miles does Sean drive in 1 hour?



Please give me an answer not a website

Answers

Answer:

7 miles

Step-by-step explanation:

you want to take the total miles and devide it by total time, (35/5) and that would be your answer.

Answer:

[tex]7\:\text{miles}[/tex]

Step-by-step explanation:

This problem implies Sean drives at a constant rate. Therefore, we can set up the following proportion:

[tex]\frac{5}{35}=\frac{1}{x},\\5x=35,\\x=\boxed{7}[/tex]

Which function has an asymptote at x = 5 and an x-intercept of (6,0)?
OA
f(x) = log(x - 5)
B.
f(x) = log(x + 5)
OC. Ax) = log x-5
OD.
f(x) = log x + 5

Answers

Answer:

f(x) = log (x-5)

Step-by-step explanation:

__________

f(x) = log(x - 5) is the  function has an asymptote at x = 5 and an x-intercept of (6,0)

What is a function?

A relation is a function if it has only One y-value for each x-value.

we need to find the function which has an asymptote at x = 5 and an x-intercept of (6,0)

An asymptote is a line that the graph of a function approaches as either x or y go to positive or negative infinity.

There are three types of asymptotes: vertical, horizontal and oblique.

The asymptotes are lines, they are written as equations of lines. The vertical asymptotes are x = 5.

f(x) = log(x - 5) is the  function has an asymptote at x = 5 and an x-intercept of (6,0)

Hence, f(x) = log(x - 5) is the  function has an asymptote at x = 5 and an x-intercept of (6,0)

To learn more on Functions click:

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A ball is thrown from a height of 49 meters with an initial downward velocity of 2 m/s. The ball's height h (in meters) after t seconds is given by the following.
[tex]h=49-2t-5t^2[/tex]
How long after the ball is thrown does it hit the ground?
Round your answer(s) to the nearest hundredth.
(If there is more than one answer, use the "or" button.)

Answers

A ball is thrown from an initial height of 6 feet with an initial upward velocity of 40ft/s . The ball's height h(in feet) after t seconds is given by the following. h=6+40t-16t^2 Find all values of t for which the ball's height is 28feet. Round your answer(s) to the nearest hundredth.

Find the value of x.

Answers

Answer:

(B) 18

Step-by-step explanation:

The shape is fliped but when put to the point where the shapes look the same QP is congruent to DE. Shape DEFG is 2 times bigger than shape PQRS. So all the line measures on PQRS are 2 times smaller than those on DEFG. Meaning x or QP is equal to 18 since 36 divided by 2 is 18.

Hope this helped :)

Do any of you know any written answers to the Probability Unit Test for 7th grade? I need a little help!

Answers

All tests across the world are different even if they're the same subject and stuff. I think it's easier for you to study, so if you have any questions about them please post them on Brainly!

6x + 12 = -6 (x + 4)​

Answers

Answer:

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

[tex]6x + 12 = - 6(x + 4) \\ 6x + 12 = - 6x - 24 \\ 6x + 6x = - 24 - 12 \\ 12x = - 36 \\ x = \frac{ - 36}{12} \\ x = - 3[/tex]

The value of x = - 3

# ꧁❣ RainbowSalt2²2² ࿐

Answer:

0 = 12

Step-by-step explanation:

This is the answer

I am about 50-50% positive UMU

Please helpp

Extra points and brainleist

Answers

Answer:

c

Step-by-step explanation:

Answers are ACD
Because |x|>or=0

Rate of change for y=1x+1

Answers

Answer:

The rate of change is 1

Step-by-step explanation:

The rate of change is the same as the slope, the ratio of the change in y over the change in x. In this case, the slope is 1, making the rate of change also 1.

48 The price of a television was reduced from $250 to $200. By what percentage was the price of the television reduced​

Answers

well the change in price was 50 dollars
Now divide your change in price by the original price
50/250=.2
To get that into a percentage multiply it by 100 and you get 20%
The answer is F

Pattern A and Pattern B both start at 0. Which statement about the patterns is

true?

Answers

Answer:

The pattern that you should pick is B

what is the slope of a line that passes through the points (6, 1) and (9, 8)? process plsss !!!

Answers

slope is considered (rise/run) or (y2-y1 / x2-x1)
meaning (8-1 / 9-6) which is equal to 7/3

At Lake View Middle School, there are 900 boys. The ratio of boys to girls is 5 to 4. How many girls are there in the school?

Answers

Answer:

320 girls

Step-by-step explanation:

We can make an algebric equation for this:

5x=900

x=180

We are asked to find the girls so we have to multiply the girls ratio by our x value we just found.

4x=4x180=320 girls

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