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
irinina [24]
1 year ago
13

I need help on #7 Please show your work

Mathematics
1 answer:
givi [52]1 year ago
3 0

The area of the given square pyramid is:

total area = 1,100 inches squared.

<h3 /><h3>How to get the area of the pyramid?</h3>

On the second image, we can see that the pyramid is conformed of a square base and 3 triangles.

To get the surface area of the pyramid, we can just get the area of each of these simpler parts.

The base is a square of 22 in by 22 in, then the area of the base is:

B = (22in)*(22 in)  = 484 in^2

For each triangle, the area will be:

A = (base side)*(height)/2

A = (22in)*(14in)/2 = 154 in^2

And we have 4 of these triangles, then the total area of the pyramid will be:

total area = B + 4*A = 484in^2 + 4*(154 in^2) = 1,100 in^2

If you want to learn more about square pyramids:

brainly.com/question/22744289

#SPJ1

You might be interested in
Use the standard norml distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justif
dalvyx [7]

Answer:

E) we will use t- distribution because is un-known,n<30

the confidence interval is (0.0338,0.0392)

Step-by-step explanation:

<u>Step:-1</u>

Given sample size is n = 23<30 mortgage institutions

The mean interest rate 'x' = 0.0365

The standard deviation 'S' = 0.0046

the degree of freedom = n-1 = 23-1=22

99% of confidence intervals t_{0.01} =2.82  (from tabulated value).

The mean value = 0.0365

x±t_{0.01} \frac{S}{\sqrt{n-1} }

0.0365±2.82 \frac{0.0046}{\sqrt{23-1} }

0.0365±2.82 \frac{0.0046}{\sqrt{22} }

0.0365±2.82 \frac{0.0046}{4.690 }

using calculator

0.0365±0.00276

Confidence interval is

(0.0365-0.00276,0.0365+0.00276)

(0.0338,0.0392)

the mean value is lies between in this confidence interval

(0.0338,0.0392).

<u>Answer:-</u>

<u>using t- distribution because is unknown,n<30,and the interest rates are not normally distributed.</u>

4 0
3 years ago
Which of the following is 12 when rounded to the nearest number?
ANTONII [103]
Option #2 
11.56 is rounded to 12 because the 6 rounds the 5 to a 6. 11.6 then rounds to 12. 
5 0
3 years ago
You have prizes to reveal! Go to your garne
pickupchik [31]
1 ton = 2,000 pounds

3 tons = $3,840
2,000 lbs = $3,840
Divide by 2,000
1 lbs = $1.92

The price per pound is $1.92
5 0
3 years ago
Find the arc length of the partial circle.
kodGreya [7K]

Answer:

Arc length of the partial circle = 3π units

Step-by-step explanation:

Given question is incomplete; please find the complete question attached.

Formula for the arc length of a circle = \frac{\theta}{360^\circ}(2\pi r)

Here θ is the angle formed by the sector at the center.

Angle that is formed at the center of the circle is = 360° - 90°

= 270°

So, length of the arc = \frac{270}{360}(2\pi)(2)

                                  = 3π

Therefore, length of the given partial circle is 3π units.

4 0
3 years ago
Read 2 more answers
A rectangular prism that’s sides are all the same size is a cube. True or false?
matrenka [14]
This is true. next one pls
4 0
4 years ago
Read 2 more answers
Other questions:
  • In ΔKLM, the measure of ∠M=90°, the measure of ∠L=55°, and LM = 59 feet. Find the length of KL to the nearest tenth of a foot.
    8·2 answers
  • Which expression is equivalent to –3 – 3x – 1 + x? <br> 2x – 4 <br> –2x + 4 <br> –2x – 4?<br> 4 – 2x
    11·1 answer
  • A doctor has 12 000 patients. 4560 are male. what percentage is female ?
    5·1 answer
  • #7 You sign up for 18 weeks
    6·1 answer
  • Of the three lines in the graph ,one has slope 1 ,one has slope 2, and one has slope 1/5
    5·1 answer
  • Mary has 3 muffins. She wants to cut each in a half. How many half pieces will she have?
    10·2 answers
  • If a function has a rule of y=5x+2 what is the output when the input is 4
    7·1 answer
  • Someone help lol. bsbajajzisksnzjiskakzkz
    7·1 answer
  • Math homework I need answers now
    6·1 answer
  • at a snack, a milkshake costs $1.19, a cheeseburger costs $3.19, and an order of sweet potato fries costs $2.89. austin is going
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!