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
dybincka [34]
2 years ago
5

(05.02)An artist is designing a kite like the one show below. Calculate the area to determine how much material she will need to

create the kite.
A kite with two top triangles with height of 5 inches and a base 7.5 inches. The bottom two triangles share the base but have a height labeled 14 inches.
142.5 square inches
105 square inches
37.5 square inches
34 square inches

Mathematics
2 answers:
Vitek1552 [10]2 years ago
6 0
Area of a triangle is base times height divided by 2. I multiplied 5 times 14 and got 70. The divided by 2 and got 35. soooo, 34?
Gnesinka [82]2 years ago
6 0

Answer:

(A) 142.5 square inches

Step-by-step explanation:

It is given that A kite with two top triangles with height of 5 inches and a base 7.5 inches. The bottom two triangles share the base but have a height labeled 14 inches that is:

DE=5in, EC=7.5in, EB=14in

Now, area of the two top triangles of the kite=2(\frac{1}{2}{\times}EC{\times}DE)

=EC{\times}DE

=7.5{\times}5

=37.5 square inches

Also, area of the two bottom triangles of the given kite=2(\frac{1}{2}{\times}EC{\times}EB)

=EC{\times}EB

=7.5{\times}14

=105 square inches

Therefore, the total area of the kite=area of the two top triangles of the kite+area of the two bottom triangles of the given kite

=37.5+105

=142.5 square inches.

You might be interested in
ANSWER AS SOON AS POSSIBLE;please and thank you/Gabby earns $30 per week. Her goal is to save 69,855 how long will it take for g
otez555 [7]

Answer:

2328.5 weeks or 6.4 years

Step-by-step explanation:

69855/30= 2328.5/365= 6.4

4 0
3 years ago
Colin buys a tv for £530. It depreciates at a rate of 3% per year. How much will it be worth in 5 years? Give your answer to the
rodikova [14]

Answer: In 5 years it will be worth £455

Step-by-step explanation:

Step 1

Given

The cost of the T.V. for Colin = £530.

The rate of depreciation per year = 3%

Time/ period = 5 years

Formulae to be used

F = P  X (1 - r) ^ n

where

F = the future value after depreciation

P = the present value.

r =the interest rate per time period

n = the time/ periods

Step 2--- SOLVING

F = P  X (1- r) ^ n

F= 530 x (1-0.03) ^ 5

=530 x 0.858734

=£455.129

Rounding up to the nearest penny where appropriate = £455

3 0
2 years ago
In the triangle below, what is the cosine of 45?
Colt1911 [192]
Cosine = adjacent / hypotenuse
cosine = 1 / square root (2)

7 0
3 years ago
Read 2 more answers
13 Use the replacement set {4, 6, 12} to find which values will make the equation 2x + 4 = 16 Strue. A None of the values are a
storchak [24]
I think it has to be A
3 0
3 years ago
A student records the number of hours that they have studied each of the last 23 days. They compute a sample mean of 2.3 hours a
natita [175]

Answer:

the standard deviation increases

Step-by-step explanation:

Let x₁ , x₂, .   .   .  , x₂₃ be the actual data observed by the student

The sample means  = x₁  +  x₂  +  .   .   .  , x₂₃ / 23

= \frac{x_1 +x_2 +...x_2_3}{23}

= 2.3hr

⇒\sum xi =2.3 \times 23 = 52.9hrs

let x₁ , x₂, .   .   .  , x₂₃  arranged in ascending order

Then x₂₃ was 10  and has been changed to 14

i.e x₂₃ increase to 4

Sample mean  = \frac{x_1 +x_2 +...x_2_3}{23}

\frac{52.9hrs + 4}{23} \\\\= \frac{56.9}{23} \\\\= 2.47

therefore, the new sample mean is 2.47

2) For the old data set

the median is x_1_2(th) values

[\frac{n +1}{2} ]^t^h value

when we use the new data set only x₂₃ is changed to 14

i.e the rest all observation remain unchanged

Hence, sample median = [{x_1_2]^t^h value remain unchange

sample median = 2.5hrs

The Standard deviation of old data set is calculated

=\sqrt{\frac{1}{n-1} \sum (xi - \bar x_{old})^2 } \\\\=\sqrt{\frac{1}{22}\sum ( xi - 2.3)^2 }---(1)

The new sample standard sample deviation is calculated as

= \sqrt{\frac{1}{n-1} \sum (xi-2.47)^2} ---(2)

Now, when we compare (1) and (2)  the square distance between each observation xi and old mean is less than the squared distance between each observation xi and the new mean.

Since,

(xi - 2.3)²  ∑ (xi - 2.47)²

Therefore , the standard deviation increases

6 0
3 years ago
Other questions:
  • If you use your office computer 40 hours per week, and do not unplug the computer when it is not in use, how much carbon dioxide
    5·1 answer
  • Consider the accompanying matrix as the augmented matrix of a linear system. State in words the next two elementary row operatio
    8·1 answer
  • For each of the following quadrilaterals, Select all the properties that must be true.
    10·1 answer
  • Solve for x. PLEASE HELP ASAP WILL GIVE BRAINLIEST ANSWER
    12·1 answer
  • A writing workshop enrolls novelists and poets in a ratio of 5 to 3. There are 24 people at the workshop. How many novelists are
    8·1 answer
  • What is the surface area of the square pyramid represented by the net?
    15·2 answers
  • Help me pls!! Only if you know it 30 points
    15·1 answer
  • Solve for a in the diagram below.
    13·2 answers
  • A point has<br> ono length<br> no width<br> no thickness<br> all of the above
    5·2 answers
  • If I want to make a profit of 20% of the selling price at 25$ on the pair of jeans, what price should I mark the jeans for?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!