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
Soloha48 [4]
3 years ago
14

Help plz if your good at finding the area of the compound figure plz help if you don’t know the answer your not needed but if yo

u do plz help

Mathematics
1 answer:
spin [16.1K]3 years ago
6 0

Answer:

96cm^2

Step-by-step explanation:

We can divide it into two rectangles: 7x8 and 10x(12-8), arriving at the solution of 7cm*8cm + 10cm*4cm = 56cm^2 + 40cm^2 = 96cm^2

We can also divide it into two rectangles: 12x7 + (12-8)x(10-7), arriving at 12cm*7cm + 4cm*3cm = 84cm^2 + 12cm^2 = 96cm^2

We could also divide it to one big rectangle and one "negative" rectangle of 10x12 and -8x(10-7), arriving at 10cm*12cm - 8cm*3cm = 120cm^2 - 24cm^2 = 96cm^2

You might be interested in
How many solutions does 2x^2-3x+6=0 have?
Ipatiy [6.2K]

Answer:

i beileve in this answer its a question of more than one salution, one salution and no solutions ................ so more than one salutions

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Problem PageQuestion The mass of a radioactive substance follows a continuous exponential decay model, with a decay rate paramet
asambeis [7]

Answer:

<em>t = 1.51</em>

Step-by-step explanation:

<u>Exponential Model</u>

The exponential model is often used to simulate the behavior of a magnitude that either grow or decay in proportion to the existing amount of that magnitude.

The model can be expressed as

M=M_oe^{kt}

In this case, Mo is the initial mass of the radioactive substance and k is a constant which value is positive if the mass is growing or negative if the mass is decaying.

The value of k is not precisely given in the question, we are assuming k=-0.2

The model is now

M=M_oe^{-0.2t}

We are required to compute the time it takes the mass to reach one-half of its initial value:

\displaystyle \frac{M_o}{2}=M_oe^{-0.2t}

Simplifying

\displaystyle \frac{1}{2}=e^{-0.2t}

Taking logarithms

\displaystyle ln\frac{1}{2}=ln(e^{-0.2t})=-0.2t

Solving for t

\displaystyle t=-\frac{ln\frac{1}{2}}{0.2}=1.51

6 0
3 years ago
A car salesperson sells a used car for $9,000 and earns 7, of the sale
Anuta_ua [19.1K]

Step-by-step explanation:

commision = 7% of $9000

commision = 7/100 * $9000

commision = $630

4 0
3 years ago
For the following exercises, evaluate the function f at the values f(−2), f(−1), f(0), f(1), and f(2)
MatroZZZ [7]

Answer:

See below.  <u><em>I assume that (x) = 8x2 - 7x + 3 is really (x) = 8x^2 - 7x + 3</em></u>

Step-by-step explanation:

Substitute the value of x given in f(x) into the equation f(x) = 8x^2 - 7x + 3

For example, f(0) would be f(0) = 8(0)^2 - 7(0) + 3.  f(0) = 3

f(-2) would be f(-2) = 8(-2)^2 - 7(-2) + 3.  

                                =   8*4  + 14 +3

                                = 32 + 17        therefore      f(-2) = 49

<u>x</u> <u>f(x)</u>

-2 49

-1 18

0 3

1 4

2 21

4 0
2 years ago
Zoya has to earn at least $300 to meet her fundraising goal. She has only 100 bracelets that she plans to sell at $5 each. Which
iren2701 [21]

Answer:

The two inequality are : x ≤  100 and x ≥ 60

So the inequality is : 60 ≤ x≤ 100.

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Hey! This is my first question. 35 points, it's not complicated. I'm trying to get my grade up and need to have this explained.
    10·1 answer
  • Susan wants to compete in a 3.75-mile race.She wants to finish the race in 25.5 minutes. What pace does Susan need to keep per m
    14·1 answer
  • Find the height of a square pyramid with volume 26.97 ft3 and dimensions of base 3 ft by 3 ft. 7 ft 8 ft 9 ft 10 ft
    7·1 answer
  • What is 2000 -163 please help
    9·2 answers
  • the ratio of bill's money to henry's money was 5:6. After bill spent $800 on a tv set, the ration became 1:2. How much money did
    13·2 answers
  • Which statement is false?
    13·2 answers
  • Is (2+5)x3 21? Please answer quick
    8·2 answers
  • A carpenter cuts a 5 feet 11 inch piece of board from a 10 feet 9 inch piece. What is the
    7·1 answer
  • Compare these two functions. Which<br> has the greater rate of change?<br> y= -6x + 7
    8·1 answer
  • What are the values of x, y, and z ?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!