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
Lady bird [3.3K]
3 years ago
9

Can someone please help me with this

Mathematics
1 answer:
Inessa05 [86]3 years ago
6 0
To find the area of a prism, you calculate the area of the cross-section and multiply that number by the length. The cross-section of this prism is a trapezium, and the formula for this is \frac{a+b}{2}h. 
Insert your given numbers to find out the area of this prism's cross-section:
\frac{3+12}{2}12=90
Now, multiply 90 by the length, 10cm, to find out the volume of the prism;
90×10=900cm³
Therefore, your answer id the third option.

You might be interested in
2. Find the distance between (-3,2) and (4,8).​
Mkey [24]

Answer:

(7,6)

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of the following gives a valid reason for using the given solution method to solve the system of equations shown? Equation
alukav5142 [94]

Answer:

* Elimination; a coefficient in Equation I is an integer multiple of a coefficient in Equation II.

* Elimination; a coefficient in Equation II is an integer multiple of a coefficient in Equation I.

Step-by-step explanation:

Equation I: 4x − 5y = 4

Equation II: 2x + 3y = 2

These equation can only be solved by Elimination method

Where to Eliminate x :

We Multiply Equation I by a coefficient of x in Equation II and Equation II by the coefficient of x in Equation I

Hence:

Equation I: 4x − 5y = 4 × 2

Equation II: 2x + 3y = 2 × 4

8x - 10y = 20

8x +12y = 6

Therefore, the valid reason using the given solution method to solve the system of equations shown is:

* Elimination; a coefficient in Equation I is an integer multiple of a coefficient in Equation II.

* Elimination; a coefficient in Equation II is an integer multiple of a coefficient in Equation I.

4 0
3 years ago
Ginny is studying a population of frogs. She determines that the population is decreasing at an average rate of 3% per year. Whe
Gala2k [10]

Answer:

f(x) = 1,200 * (0.97)ˣ

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Madison withdrew $22 from her bank account on Thursday and then deposited $10 on Friday. What integer represents the change in h
kotykmax [81]

Answer:

there was a -12 integer change

Step-by-step explanation:

-22 + 10 = -12

8 0
2 years ago
6. Name the polygon. Write whether it is regular<br> or not regular
slamgirl [31]

Answer:

this shape is a pentagon. this is a regular shape because all the sides are even and all the angles on the inside are also even.

Step-by-step explanation:

pls mark brainliest!

7 0
3 years ago
Other questions:
  • Economists study the way society uses its resources. One important resource studied is agriculture. The recent increase in deman
    12·2 answers
  • Kevin takes out a loan for 8000$ at 4.5% simple interest for 48months what amount of simple interest will he have to pay on the
    7·2 answers
  • it costs $5.75 to enter an arcade and $.50 to playing arcade game. You have $7.25. Right in equation that represents the number
    6·2 answers
  • What is 8 hours and 37 minutes in seconds?
    7·2 answers
  • Write an equation for the line below. Show work
    9·1 answer
  • X1 − x2 + x3 = 6
    12·1 answer
  • PLEASE HELP GUYS THANK YOU IN ADVANCED
    6·2 answers
  • Kharter goes to a gas station near his house where it costs $2.95 per gallon. Kharter’s car hold’s 13.2 gallons. The gas station
    14·2 answers
  • If 1/2 cup of white sugar is needed for one batch of oatmeal raisin cookies, how much white sugar is needed for 8 batches of coo
    8·1 answer
  • According to the fundamental theorem of algebra, which polynomial function has exactly 6 roots? f (x) = 5 x superscript 4 baseli
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!