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
yarga [219]
3 years ago
6

Find the surface area of a square pyramid with side length 3 cm and slant height 3 cm

Mathematics
2 answers:
ipn [44]3 years ago
7 0

Answer:

Step-by-step explanation:

base length b = 3 in

slant height L = 3 in

base area = b² = 3² = 9 in²

lateral area = 4·½bL = 4·½·3·3 = 18 in²

surface area = base area + lateral area = 27 in²

Vlada [557]3 years ago
3 0

Answer: 27 cm2

Step-by-step explanation:

You might be interested in
In a simple regression analysis (where y is a dependent and x an independent variable), if the y-intercept is positive, then it
Rom4ik [11]

Answer:

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

Step-by-step explanation:

Assuming the following options:

A.  there is a positive correlation between X and Y

B.  there is a negative correlation between X and Y

C.  if X is increased, Y must also increase

D.  if Y is increased, X must also increase

E.  none of the above

If we want a model y = mx +b where m represent the lope and b the intercept

m=\frac{S_{xy}}{S_{xx}}  

Where:  

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}  

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}  

\bar x= \frac{\sum x_i}{n}  

\bar y= \frac{\sum y_i}{n}  

And we can find the intercept using this:  

b=\bar y -m \bar x  

On this case the correct answer would be:

E.  none of the above

Since the intercept has no association between the increase/decrease of the dependent variable respect to the independent variable

3 0
3 years ago
What are the roots of: y=x^2+3x-98
Sedaia [141]

Answer:

Step-by-step explanation:

8 0
3 years ago
Please help me wit these 2
Sedaia [141]

Answer:

6)GFE

EFG

F

4

8) I got x=1

Step-by-step explanation:

So sorry if that is wrong

5 0
3 years ago
If one side of a triangle is 87 and the other side is 52, what is the measurement of the other side?
mezya [45]

Answer:

87+52=139 180-139 = 41

41 is the measurement of the other side

Step-by-step explanation:

3 0
3 years ago
16 times 99 Thank you for helping! :D
jarptica [38.1K]

Answer:

1584 is your answer that you are looking for

5 0
3 years ago
Other questions:
  • What is the degree of x^3+2x-3x^4+5+3x^2
    6·1 answer
  • What is the area of the parallelogram?
    5·1 answer
  • The value of the digit in the hundredths place is how many times as much as the value of the digit in the tenths place?
    15·2 answers
  • Holly missed 8 of 182 school days this year. Approximately what percent of school days was Holly in attendance?
    13·1 answer
  • Jake is comparing the prices of two mattress cleaning companies. Company A charges $30 per mattress and an additional $13 as ser
    6·1 answer
  • a jar of natural peanut butter normally costs $4.00.Today it's on sale for 3.60. What is the percentage of this discount?
    10·1 answer
  • The carnival fundraiser at Westville Elementary School raised $300 on Friday. On Saturday, the carnival will raise 480 percent o
    14·1 answer
  • OK this id just for fun but how many holes are in A Polo
    11·2 answers
  • the price of the coat was $160. the Price increased by 25%. A month later josie bought the coat at a 25% discount sale. How much
    12·1 answer
  • What is the solution to this equation? -6x + 3 = 21 A. X= 4 B. X = -8 C. X = 3 D. X= -4​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!