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
AveGali [126]
3 years ago
6

Kelly found the area of the composite figure below and showed her work on a quiz. Her teacher marked her answer incorrect.

Mathematics
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

446.75 y^2

Step-by-step explanation:

First, Kelly found the area of a circle, not half a circle, which is on top of the figure. She also shouldn't have subtracted the area of the circle by the airea of the base, as she is trying to find the area of the ENTIRE figure.

.5 TIMES pi times 9^2 = 122.75

the second part, calculating the square base is correct..

122.75+324 = 446.75 y^2

You might be interested in
6. The dimensions of a living room are 18 ft. by 15 ft. by 8ft. If air weighs 0.08 lb. per cubic foot, the weight of the air in
user100 [1]

The weight of the air in the room is 172.8 lb if the dimensions of a living room are 18 ft. by 15 ft. by 8ft.

<h3>What is a rectangular prism?</h3>

It is defined as the six-faced shape, a type of hexahedron in geometry.

It is a three-dimensional shape. It is also called a cuboid.

It is given that:

The dimensions of a living room are 18 ft. by 15 ft. by 8ft.

The volume of the living room = volume of the cuboid:

V = length×width×height

V = 18×15×8

V = 2160 cubic ft

The weight of the air = 0.08 lb. per cubic foot

The weight of the air in the room = 0.08×2160

The weight of the air in the room = 172.8 lb

Thus, the weight of the air in the room is 172.8 lb if the dimensions of a living room are 18 ft. by 15 ft. by 8ft.

Learn more about the rectangular prism here:

brainly.com/question/21308574

#SPJ1

7 0
2 years ago
I am doing rate of change, question is down below.<br> I have two questions.Both down below.
guapka [62]

Answer:

For the first question, the answer is 4/3. For the second it is 16.

Step-by-step explanation:

I just took the quiz! Can I please have Brainliest? Hope this helped!

5 0
3 years ago
Read 2 more answers
Sandy is helping her uncle at this coffee shop. She observes that, when ordering coffee, 13 of customers select chocolate flavor
otez555 [7]
Answer: The probability that 3 or more of the next 5 customers will order chocolate is 30%.  3/10

Sandy conducted her own experiment to answer this question. She observed what groups of 5 customers ordered. In her experiment, 30% of the time at least 3 of the customers ordered chocolate.

The fraction 30% is 3/10.
7 0
3 years ago
Read 2 more answers
Is angle SAM congruent to angle DEL if so identify the simularity postulate or theorem applies
atroni [7]

Answer:

yes

Step-by-step explanation:

yes because that is literally what he used

4 0
2 years ago
Hours (x) 0 1 2 3 4 5
MatroZZZ [7]
The answer is D) 3,404

By putting the table values into the progam DESMOS, and then putting in the formula, the answer will be given- and that answer is 3,404. 


5 0
3 years ago
Read 2 more answers
Other questions:
  • One True Love? A survey that asked whether people agree or disagree with the statement ‘‘There is only one true love for each pe
    8·1 answer
  • If Mei has earned 30 points right and solve a multiplication equation to find out how many books she needs to read
    13·2 answers
  • How many rational numbers have square roots between 10 and 10.1?​
    15·1 answer
  • The vertices of ΔDEF have coordinates D(–1, 2), E(3, 3), and F (2, –4).What are the coordinates of the vertices of r(90°, O)(ΔDE
    11·1 answer
  • To finance her community college​ education, Sarah takes out a loan for ​$4300. After a year Sarah decides to pay off the​ inter
    8·2 answers
  • What is equivalent to 7w +7w
    14·1 answer
  • 5.4 times7.2 times 6
    12·2 answers
  • Please Help 11th Grade Math ASAP<br> It is really hard so I need someone really smart.
    14·2 answers
  • Attachment down below
    9·1 answer
  • On applying a load of 100 N to a wire of a cross-sectional area of 0.01 m2, a strain of 6.25×10-3 is produced. Find Young’s Modu
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!