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Fudgin [204]
4 years ago
6

A square pyramid is shown. What is the surface area? PLS HELP ILL GIVE BRAINIEST!

Mathematics
2 answers:
AVprozaik [17]4 years ago
7 0
C.31.25cm^2
To work out the area of the square(the bottom of pyramid) you square 2.5 which is 6.25
Then you work out the area of a triangle- 2.5*5/2=6.25
Times 6.25 by 4 because it is a square based pyramid =25
Then add the square and triangles together
25+6.25=31.25cm
Leya [2.2K]4 years ago
4 0

Answer:

31.25 thank you next

Step-by-step explanation:

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Who was the mathematician who developed mathematical theory that supports laws of energy conservation?
xxMikexx [17]

Answer:

The law of energy conservation is supported by the mathematical theory known as Mass-Energy Equivalence. This was developed by Albert Einstein.

5 0
4 years ago
0.25 multiplied by 0.4 the answer says 0.1 how do I get that I tried it doesn't come out the same
Ede4ka [16]
You could do it as if they were fractions
.4 equals 4/10 which equals 2/5
.25 equals 25/100 which equals 1/4
2/5 times 1/4 equals 2/20
2/20 equals 1/10
1/10 equals .1 
.1 is correct

You could also multiply decimals like this:
1.Multiply them together like full numbers
4 times 25 equals 100
2.Move the decimal in three times because the decimal .4 is moved in once and .25 is moved in twice so when you add them you get three 
The answer would be .1 or .100 (it doesn't make a difference because you cross out any zeros at the end of a decimal Ex: .12300 equals .123 but .123001 stays .123001)
8 0
4 years ago
Which is equivalent to 80(1/4^x)
BabaBlast [244]
20/x ???
(By simplifying)
4 0
3 years ago
Read 2 more answers
4) Does the following table show a function?
Alexandra [31]
No i don’t think it does
4 0
3 years ago
Given f(3)=9 and f(5)=28, using the first two terms of the Taylor series, the approximate value of f'(3) is (Keep 4 decimal poin
IrinaK [193]

Answer:

The approximation by Taylor series of f'(3) is 9.5000.

Step-by-step explanation:

Taking the two first terms for Taylor series gives the following expression:

f(x)=f(x_{o})+f'(x_{o})*(x-x_{o})+e

Where e represents the error of the approximation and in this case is of second order. For this particular example, it is no required to calculate.  

Note that in the equation x is the independent variable, in contrast, xo is the value where all the derivatives of the function are calculated and must be defined. Observe that the value for the first derivative in x equal 3 is wanted to know, so xo will be equal 3.

Now to find f'(3) will use the rest of the information that was given:

f(5)=28 (x=5)

Replacing the previous values in the Taylor expansion:

f(5)=f(3)+f'(3)*(5-3)

28=9+f'(3)*(5-3)

Solving the equation:

f'(3)=(28-9)/(5-3)

f'(3)=9.5

f'(3)=9.5000

There was no rounding in the calculated value.

4 0
4 years ago
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