Mathematics High School

How do you get 60cm2 in question 1?

How Do You Get 60cm2 In Question 1?

Answers

Answer 1

Answer:

Step-by-step explanation:

4*2=8, thats one rectangle (side)

8*2 is 16, thats TWO rectangles (sides)

7*4=28, thats one rectangle (front)

28*2=56, thats TWO rectangles (front and back)

7*2=14, thats one rectangle (top)

14*2=28, thats TWO rectangles (top and bottom)

add all of these surface areas together

TWO rectangles + TWO rectangles + TWO rectangles

28+56+16=100

As you can see, the 60cm2 is incorrect. 100cm2 is the real surface area of the shape

Related Questions

this question is bothering me help

Answers

Answer:

the First, third, and fifth

Step-by-step explanation:

Since one half of 12 is 6, then those three expressions will be the same since they have the same answer

what is the graph of the function rule?
y= 4x - 1

Answers

Answer:

join the two points

Step-by-step explanation:

（x,y) = (1,3)

(just by substituting the number into the equation to make it fit)

then, also draw a point at (0.-1)

Answer:

I hope this helps, and is what you are looking for.

good luck!

a sewing project requires material costing $44 plus tassels. If the material and tassels are to be purchased with four $20 dollar bills, how many tassels can be purchased if they cost $2.40 each

Answers

Answer:

i think the answer is 15

Step-by-step explanation:

four $20 bills would equal $80

$80- $44 because of materials gives you $36

$36 divided by 2.50 equals 15

i hope this makes sense :)

Which number equals 3/4 to the power of negative 2

Answers

Answer:

16/9

Step-by-step explanation:

16/9=1.77777777778

(3/4)^-2=1.77777777778

30+1+0.5+0.02 in standard form pls answer stat​

Answers

Answer:

31.52

Step-by-step explanation:

Just add them...

It won't let me delete sorry thats what someone told me was standard form was

Simplify 3c-9d+7c+5d

Answers

Answer:

10c - 4d

Step-by-step explanation:

Hey there,

Combine like terms

3c - 9d + 7c + 5d

3c + 7c - 9d + 5d

= 10c - 4d

Hope this helps you.

Let me know if you have any other questions :-)

An arts academy requires there to be 5 teachers for every 115 students and 3 tutors for every . How many students does the academy have per​ teacher? Per​ tutor? How many tutors does the academy need if it has 77 students ​?

Answers

Answer:

1.23

2. Question incomplete

3. Needs Question 2 to Answer

Step-by-step explanation:

1. 115÷5=23

PLZ HELP, a) twenty two and nine hundred eight thousandths in decimal form. b) three and seven tenths.l in decimal form c) sixty nine and fifty three thousandths in decimal form

Answers

Answer:

Twenty two and nine hundred eight thousandths= 22.908

three and seven tenths = 3.7

sixty nine and fifty three thousandths= 69.053

-7x+3y=2 (find the ordered pair)

A. (1,3)
B: (-2,-4)
C. Both
D. Neither

Answers

Answer:

C. Both

Step-by-step explanation:

-7(-2) + 3(-4) = 2

14 + (-12) = 2

14 - 12 = 2

2 = 2

-7(1) + 3(3) = 2

-7 + 9 = 2

2 = 2

Both
B
Evidence:
If you plug in the order pair values they equal 2
Step 1:-7(-2)+3(-4)=2
Step 2:14-12=2
Step 3: 2=2

3x = 4у + 12 .
What is the y intercept

Answers

Answer:

I think it is y=-3

Step-by-step explanation:

Answer:

y=-3

Step-by-step explanation:

[tex]200+300+1000[/tex]

Answers

Answer:

200 + 300 + 1000 = 1,500

Step-by-step explanation:

pls brainliest plss :<

Point L is on line segment

K

M

‾

KM

. Given

L

M

=

2

LM=2 and

K

M

=

19

,

KM=19, determine the length

K

L

‾

.

KL

.

Answers

Answer:

k is the option that makes sense

The time it takes for an object dropped from a height to reach the ground is given by the function time (in seconds) =(1/4)√h where h is the initial height in feet. If an object dropped from a building takes 4 seconds to reach the ground what is height of the object was dropped from, to the nearest foot?

Answers

Answer:

256 ft

Step-by-step explanation:

Assuming f(t)=(1/4)√h, we can solve for h by setting 4=(1/4)√h.

4=(1/4)√h

16=√h

h= 16^2 =256 ft

Step-by-step explanation:

h = (4 ÷ ¼)²

h = (4 × 4)²

h = 16² = 256ft

Mr. Webster is buying carpet for an exercise room in his basement. The room will have an area of 230 square feet. The width of the room with have 12&1/2 feet. What is the length?

PLEASE DO NOT JUST GIVE THE ANSWER, (I could have done that myself) PLEASE SHOW WORK ON HOW YOU GOT THE ANSWER.

Thanks!

Answers

Answer: 18.4 ft

Step-by-step explanation:

Area= L x W

230= 12.5 x L (Divide both sides by 12.5 to get L)

L= 18.4 ft

Answer:

The length of the room is 18 2/5 feet.

Step-by-step explanation:

The formula for finding the area of rectangles is A = l · w

Since the area and width is given to you, we can substitute that in the formula:

230 = l · 12 1/2

Now we convert the 12 1/2 to an improper fraction so it is easier to solve.

Here's how you convert a mixed number to an improper fraction:

12 · 2 = 24

24 + 1 = 25

and put 25 over the original denominator

     = 25/2

Now you can add that to the equation...

l · 25/2 = 230 (I put 230 on the right side because that is how I am used to solving equations, but you can leave it on the right side as well. It is up to you)

To get rid of fractions, multiply by the reciprocal (Basically you flip the fraction so that the numerator becomes the denominator and the denominator becomes the numerator) on both sides

25/2 · 2/25 cancels itself out

   and

230/1 · 2/25...

   230 · 2 = 460

   1  · 25 = 25

So you would get 460/25

Thus, we end up with:

l = 460/25

Divide 460 by 25 and you get 18.4...

Technically 18.4 is the answer but in decimal form.

If you want it in fraction form, just take 0.4 and put it over 10 because 0.4 is in the tenths place. 4/10 simplifies down to 2/5...

Therefore, the answer is 18 2/5 feet.

I hope this is helpful! Let me know if you have any further questions :D

Which expression best describes the array modeled below?

Answers

Answer:

Where is it??

Step-by-step explanation:

perpendicular line for y=-3x+17 that passes through point (2,6)

Answers

Answer:

Step-by-step explanation:

Answer:

The answer is y = - 1/3x + 6.6

Pls help !!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

The slope is 2.

Step-by-step explanation:

You can see on the intercepts that it goes rise 2 and run over 1 which would basically equal to 2.

Step-by-step explanation:

I don't know if it help but here.It's the one that says slope of a line.

Evaluate the expression when m= -3. m²+8m-7​

Answers

Answer:

-22

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Find the measure of the angle plz help

Answers

Answer:

you need a protractor to measure it. They have made a picture of that too.

Step-by-step explanation:

you need a protractor to measure it. They have made a picture of that too.

5√162−3√8 to its simplest form

Answers

Answer:

I think it is this one:

39√2

The simplest form of 5√162−3√8 is 39√2 or 55.146

What is simplification?

Simplification or simplifying fractions way to simplify a complex mathematical expression to get an unmarried or direct answer.

Calculation:-

⇒5√162−3√8

⇒5*12.72-3*2.83

⇒63.6-8.49

⇒55.146

Learn more about simplification here:-https://brainly.com/question/723406

#SPJ2

HELP ASAP. A cargo plane and a private jet leave at the same time from the same airport traveling in opposite directions. The jet travels at twice the speed of the cargo plane. They are 2,400 miles apart in 4 hours. Find the speed of the cargo plane and the jet plane.
////////////////Rate Time Distance
Cargo

___________________________

Jet

Answers

600 miles in a hour then just look up how fast that is cause 2,400 divided in 4 hours is 600

Subtract 14 inches from 4 feet, 2 inches.
10 inches
03 feet
O 5 feet
34 inches

Answers

Answer:

should be 36 inches

Step-by-step explanation:

Tam giác ABCD có góc B = 65 Độ góc C = 115 Độ hỏi góc A bằng bao nhiêu độ

Answers

Answer:

a

Step-by-step explanation:

kasi yun ang tama at

nain tindi han ko

A





pls give me brainliest!! <3 have a good day

To undo the exponent we have to take the square root a.true b.false

Answers

Answer:

A

Step-by-step explanation:

Find the solution of sqrt(x+3) + 4 = 6 , and determine if it is an extraneous solution. (1 point)

answers

x = 1; not extraneous

x = 1; extraneous

x = 29; extraneous

x = 29; not extraneous

Answers

Answer:

x = 1; not extraneous

Step-by-step explanation:

is it
A) X || Z
B) A T Z
C) A || B
D) X T A

Answers

Answer:

Well I would say the answer is A

Step-by-step explanation:

Because there is no metion of line A

Hope this helps have an awsome day!

3. What word means out of one hundred?

Answers

Answer:

percent

Step-by-step explanation:

you can use percent

eg 40 out of 100 = 40%

Hello!

Answer:

0.01

Step-by-step explanation:

The word one hundredth represents the number 0.01 meaning one hundredth of the number 1

Hope this helps!

A single ant colony may have as many as 90,000 members. What is that number written as a whole number multiplied by a power of 10?

Answers

Answer:

9

Step-by-step explanation:

9×10=90 would make up the ant colony

help. please ): I'm stuck​

Answers

2^5 / 4

---2 to what power is 4?

2^5 / 2^2

---Remember when dividing terms with exponents, we subtract the exponents

2^3

---All that's left is 2 to the 3rd power, or 2 x 2 x 2

8

a = 2

b = 3

c = 8

Hope this helps!! :)

Answer:

a =2 b=3 c=8

Step-by-step explanation:

it's just multiplying and dividing

Larry's age if he is 5 years younger than twice his brother's age. Use b for his brothers age.

Answers

Answer:

(b2)-5

Step-by-step explanation:

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