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
horrorfan [7]
3 years ago
9

What is the surface area of this triangular pyramid?

Mathematics
1 answer:
lidiya [134]3 years ago
8 0

<em>48.25 in^2</em>

Step-by-step explanation:

The formula for the surface area of a pyramid is:

SA=B+\frac{1}{2}l(number of base sides)(b)

B represents the area of the base, which in this case is a triangle. We will figure out the area of the base first, using the formula for the area of a triangle.

A=\frac{1}{2}bh

A=.5*5*4.3

A = 10.75

Now we can plug in 10.75 for B.

SA=10.75+.5*5*3*5

The cursive L will be the lateral height, which is 5. Since there are 3 sides on the base we can put that in for the number of base sides, and the base is 5.

SA=

48.25 in^2

You might be interested in
Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions:
fredd [130]
Oooo ok
I don’t now true this or no
But answer is 13
7 0
3 years ago
If the mean of 5 positive integers is 15, what is the maximum possible difference between the largest and the smallest of these
Vikki [24]

Answer:

if the 5 numbers are different, the maximum difference is 64

Step-by-step explanation:

We have 5 positive (different) integers, a, b, c, d and e (suppose that are ordered from least to largest, so a is the smallest and b is the largest.

The mean will be:

M = (a + b + c + d + e)/5 = 15.

Now, if we want to find the largest difference between a and e, then we must first select the first 4 numbers as the smallest numbers possible, this is:

a = 1, b = 2, c = 3 and d = 4

M = (1 + 2 + 3 + 4 + d)/5 = 15

M = (10 + d)/5 = 15

10 + d = 15*5 = 75

d = 75 - 10 = 65

then the difference between a and d is = 65 - 1 = 64.

Now, if we take any of the first 4 numbers a little bit bigger, then we will see that the value of d must be smaller, and the difference between d and a will be smaller.

5 0
3 years ago
Kim sold a house for $250,000 and made a 2% commission. How much money did Kim make from commission for selling the house?
Vikki [24]

Answer:

5000

Step-by-step explanation:

2% of 250,000 is 5000

4 0
3 years ago
Read 2 more answers
Answer correctly for the brainliest answer
Dahasolnce [82]

Similar triangles so AC:BC=AE:DE

15+6=21 = AE

15:12.5=21:?

to get from 15 to 12.5 you divide by 15 and times by 12.5 so do this the to the other side

21/15=1.4

1.4 x 12.5=17.5

So DE=17.5

4 0
3 years ago
How do you interpret the residual?
Vanyuwa [196]

Answer: To find a residual you must take the predicted value and subtract it from the measured value.

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • The table of values below shows data for a five-word spelling test. Number of Letters vs. Percentage who Spelled Correctly Word
    9·2 answers
  • Find the slope of the line passing through (-4, 1) and (-1, -2).
    10·2 answers
  • Can someone please help me?​
    11·1 answer
  • Please!! I have to do this by tonight!!
    11·1 answer
  • Using this graph as a reference, what is the solution for this system of equations?
    12·1 answer
  • 3x+8&gt;9 <br> x has to equal 1<br> (if you can please include the steps! i will give brainiest)
    9·1 answer
  • The value of y varies directly with x. When y=2 2/5,x=3/5 what is the value of y when x is 4/5
    13·1 answer
  • The ant teaches us a lesson about:<br> A. mischievousness<br> B. lying<br> C. pride<br> D. laziness
    8·2 answers
  • Samuel White purchased an apple for $1.25,
    15·1 answer
  • Which option shows the graph of 4y + 8&lt;-3x?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!