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
maks197457 [2]
2 years ago
9

Which is the correct algebraic expression please help image attached I'll give brainliest

Mathematics
1 answer:
Ira Lisetskai [31]2 years ago
4 0

Answer:

C.       \frac{3}{2}ab - \frac{\pi  a^2}{8}

Step-by-step explanation:

Area triangle = \frac{1}{2}(3ab) = \frac{3ab}{2} = \frac{3}{2}ab

Area semi-circle = \frac{1}{2}(\pi (\frac{1}{2}a)^2) = \frac{\pi (\frac{1}{2}a)^2}{2} = \frac{\pi (\frac{1}{4}a)^2}{2} = \frac{\pi a^2}{8}

Final Equation = \frac{3}{2}ab - \frac{\pi  a^2}{8}

-Chetan K

You might be interested in
After driving to a riverfront parking lot, Bob plans to run south along the river, turn around, and return to the parking lot, r
mars1129 [50]

Answer:A) 1.5

Step-by-step explanation: Bob runs at the rate of 8mins per mile

In 60mins his rate would be=60/8=7.5

Let a be the distance he further runs south

2s+3.25

Total distance covered in 50mins=Time=distance/speed=

50/60

50/60=2s +3.25/7.5

Cross multiply

60(2s+3.25)=50×7.5

120s+195=375

120s=375-195

S=180/120

S=1.5

5 0
3 years ago
If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 40 minutes, then Torricelli's Law gives the v
pochemuha

Answer:

V'(t) = -250(1 - \frac{1}{40}t)

If we know the time, we can plug in the value for "t" in the above derivative and find how much water drained for the given point of t.

Step-by-step explanation:

Given:

V = 5000(1 - \frac{1}{40}t )^2  , where 0≤t≤40.

Here we have to find the derivative with respect to "t"

We have to use the chain rule to find the derivative.

V'(t) = 2(5000)(1 - \frac{1}{40} t)d/dt (1 - \frac{1}{40}t )

V'(t) = 2(5000)(1 - \frac{1}{40} t)(-\frac{1}{40} )

When we simplify the above, we get

V'(t) = -250(1 - \frac{1}{40}t)

If we know the time, we can plug in the value for "t" and find how much water drained for the given point of t.

4 0
3 years ago
Jane is building eight 3-legged stools. Each leg is 1/2 yard long. She can cut the legs from wooden rods that are sold in 2-yard
jonny [76]

Answer:

n = 6\,rods

Step-by-step explanation:

The total of legs needed to build the stools are:

x = (8) \cdot (3)

x = 24

Likewise the total length of the legs is:

L_{tot} = 24\cdot (0.5\,yd)

L_{tot} = 12\,yd

Lastly, the quantity of rods that needed to buy is:

n = \frac{12\,yd}{2\,\frac{yd}{rod} }

n = 6\,rods

6 0
3 years ago
8=56<br> 7=42<br> 6=30<br> 5=20<br> 3=?
m_a_m_a [10]
3=6

In this case, the pattern is the number, in this case, 3, multiplied by the number below it.

See?
8\times7=56\\7\times6=42\\6\times5=30\\5\times4=20\\3\times2=6

Hope this helped :)
3 0
2 years ago
Read 2 more answers
An airplane travels 550 miles from North Carolina to Tennessee in 90 minutes. At this rate, how many minutes will it take the ai
scZoUnD [109]

Answer:

It will take 1,080 min or 18 hours

Step-by-step explanation:

Here is why, since 6600 miles is 12 times farther than 550 miles you'd multiply the time it took to go 550 miles by 12 too

8 0
3 years ago
Other questions:
  • A computer downloads files at a constant rate. The table shows how many megabytes the computer downloads over specific lengths o
    13·1 answer
  • Peter begins his kindergarten year able to spell 10 words. He is going to learn to spell 2 new words every day. Determine the mi
    9·2 answers
  • Does this graph show a function?
    8·1 answer
  • En el mes de abril en la cancha Toto Hernández de Cucuta, habrán encuentros de
    5·1 answer
  • Solve for x.
    8·1 answer
  • In her sixth-grade social studies class, Mrs. Davis has 22 students, 12 of whom are girls. If one
    9·2 answers
  • A leaky pool loses 2 and one-fourth inches of water each day. Jermaine and Mildred are asked to determine the change in the amou
    12·2 answers
  • Somebody please help me
    12·1 answer
  • The equation shows the relationship between x and y:
    11·1 answer
  • Simplify it<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%286r%2B9p%29%286r-9p%29%7D%7B3%7D%20%2B%28%207p%2B2%28r%20-%203p%
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!