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
lesya [120]
2 years ago
9

The total surface area of rectangular solid is 130 cm.If the solid is 7 cm long and 5 cm wide,calculate the height.​

Mathematics
1 answer:
ivolga24 [154]2 years ago
3 0

Answer:

2.5cm

Please vote for Brainliest and I hope this helps!

You might be interested in
I need help on some geometry questions
kupik [55]

Answer: x = 40

<u>Step-by-step explanation:</u>

3x + x + 20 = 180    <em>same side (consecutive) interior angles</em>

    4x  + 20 = 180

    4x           = 160

      x           = 40

****************************************************************************

Answer: x = 24

<u>Step-by-step explanation:</u>

6x - 24 + 2x + 12 = 180       <em>linear pair (supplementary angles)</em>

               8x - 12  = 180

               8x         = 192

                 x          = 24

****************************************************************************

Answer: x = 16

<u>Step-by-step explanation:</u>

base angles of an isosceles triangle are congruent

2(2x + 15) + 6x - 10 = 180       <em>triangle sum theorem</em>

4x + 30 + 6x - 10 = 180

             10x + 20 = 180

              10x         = 160

                 x          = 16

****************************************************************************

Let ∠1 and ∠2 represent the exterior angles in the diagram and "x" represent the same side (consecutive) interior angle with ∠1.

Then m∠1 + x = 180     <em>same side interior angle theorem</em>

and m∠2 + x = 180      <em>linear pairs are supplementary </em>

m∠1 + x = m∠2 + x     <em>transitive property</em>

m∠1  = m∠2               <em>subtraction property of equality</em>

   ∠1 ≈ ∠2                   <em>definition of congruency</em>



8 0
3 years ago
Is the following relation a function?<br><br><br> Yes<br><br> No
svp [43]

Answer:

no

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
If (x^2+1)/x = 7 find x^2+(1/x^2)
White raven [17]

Answer:

x²+(1/x²) = 47

Step-by-step explanation:

by identity : (a+b)² = a²+b²+2ab

(x+1/x)²= x²+(1/x)²+2(x)(1/x)

(x+1/x)²= x²+(1/x²)+2....(1)

since : (x²+1)/x = 7

(x²/x) +(1/x) = 7

x + (1/x )= 7

put the value for : x +(1/x) in (1) :

49 = x²+(1/x²)+2

x²+(1/x²) = 47

4 0
3 years ago
For a test! please help asap
Delvig [45]

Answer:

8/9

Step-by-step explanation:

3 {}^{x}  - 3 {}^{x - 2}

3 {}^{x}  -  \frac{3 {}^{x} }{ {3}^{2} }

3 {}^{x} (1 -  \frac{1}{9} )

3 {}^{x} ( \frac{8}{9} )

So

A=8/9

7 0
2 years ago
A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of ex
Juli2301 [7.4K]
To find an average you take the numbers to be averaged and add them together then You take the number and divide it by the number of numbers, in this case 4, and that gives you the average.
on this problem you want to do the opposite. you know the average she wants, an 87, so you multiply it by 4. 87*4=348. then you add the three numbers you have (88,81 and 87) and you get 256.
then you subtract 256 from 348 and you get 92. 92 is your answer to check just add 87+81+88+92=348
348/4=87
87 was the average she wanted.
Hope this helped! good luck :)
4 0
3 years ago
Other questions:
  • Alexis has a rectangular piece of red paper that is 4 centimeters wide. It’s length is 8 centimeters. She glued a rectangular pi
    5·1 answer
  • Sickle-cell disease is a painful disorder of the red blood cells that in the United States affects mostly African Americans. To
    13·1 answer
  • Explain why the two figures below are similar. Use complete sentences and provide evidence to support your explanation.
    15·2 answers
  • The answer to the problem
    14·1 answer
  • What is the area of a triangle <br> Please help!!!
    15·1 answer
  • Another name for the standardized score from a normally distributed variable is the _____.
    14·2 answers
  • Need help on this! Maybe be marked brainliest?
    14·1 answer
  • Help me fast fast 10 and 11​
    12·2 answers
  • Pls help, Will give brainliest
    9·1 answer
  • HELP PLEASE!!!!<br> THERE R 3 QUESTIONS. MAKE SURE TO ANSWER ALL 3!!!<br> TYSM
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!