1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Naya [18.7K]
3 years ago
10

How to do this question plz ​

Mathematics
2 answers:
Jlenok [28]3 years ago
8 0

Answer:

Step-by-step explanation:

surface area of two trapezoids=2[(12+8)/2×3]=2[30]=60 cm²

surface area of side rectangles=10×8+10×12=10(8+12)=200 cm²

surface area of top=10×5=50 cm²

surface area of bottom=10×3=30 cm²

Total surface area=60+200+50+30=340 cm²

shusha [124]3 years ago
7 0

Answer:

Step-by-step explanation:

to find the surface area , you need to find the area of each side(face)

top: 5*10=50

the bottom of the shape: 3*10=30

the front face:10*8=80

the sides are trapezoid shapes with:different dimensions:

side :8,12 and eight of 3 ( the shape has 3 faces the same)

area=((12+8)/2)*3= 30 (30*3 faces or sides)

add the numbers: 50+30+80+(30*3)=250 cm^2

I hope it is right and good luck

You might be interested in
20. The H.M. between 2 and 8 is<br>(1 marks )​
e-lub [12.9K]

Answer as an improper fraction = 16/5

Answer as a mixed number = 3 & 1/5

Answer in decimal form = 3.2

All of those values represent the same thing, but written in a different way.

=============================================================

Explanation:

I'm assuming HM stands for Harmonic Mean in this case.

If so, then we apply the reciprocal operation to each value to get 1/2 and 1/8 (from 2 and 8 respectively).

Add up those fractions:

1/2 + 1/8 = 4/8 + 1/8 = 5/8

Now we'll divide n = 2 over that result. The n = 2 refers to the number of items in the original set.

n divide over (5/8) = 2*(8/5) = 16/5 which is the answer as an improper fraction

-----------

To convert to a mixed number, we can do the following:

16/5 = (15+1)/5

16/5 = 15/5 + 1/5

16/5 = 3 + 1/5

16/5 = 3 & 1/5

Or if you need the answer in decimal form, then using a calculator would get you 16/5 = 3.2

6 0
3 years ago
Write a complete program thatdeclares an integer variable,reads a value from the keyboard into that variable, andwrites to stand
ch4aika [34]
#include

int main()
{
int num;
scanf("%d", &num);
printf("%d", num*num);
return 0;
}
4 0
3 years ago
What is the greatest common factor of x^5, x^6, x^8?
lozanna [386]

Answer: I think the answer is x5

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A building is in the shape of a square pyramid. Each side of the base is 54 meters long and the height is 260 meters.
sergiy2304 [10]
Check the picture below.

5 0
3 years ago
Enter the number that belongs in the green box
Vlada [557]

Answer:

X=90

Step-by-step explanation:

x=90 because it is a right angle.

hope that helps!

5 0
3 years ago
Other questions:
  • At a snack stand, drinks cost $1.50. Write the expression that could be used to find the total cost in dollars of d drinks?
    5·2 answers
  • If A = (0,0) and B = (2,5), what is the approximate length of AB?
    9·2 answers
  • A triangular prism has the same number of face true/false
    7·1 answer
  • A freight train and an express train leave towns 390 miles apart at the same time, traveling toward one another. The freight tra
    5·2 answers
  • In a parking lot, there are 21 blue cars and 75 cars that are other colors. What is the ratio of blue cars to cars that are not
    15·2 answers
  • What is the amount of sales tax on a $25 shirt if the tax rate is 7%?
    13·1 answer
  • The quotient of 27 less than m and twice m
    6·1 answer
  • Hi everyone!!!!!!! how is it going?<br>​
    8·2 answers
  • Does anybody know this ?
    5·1 answer
  • The volume of this right prismis 2500 What is the hegt, z. of the prisma Enter your answer to the bou X=​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!