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Rufina [12.5K]
3 years ago
7

The answer to this problem

Mathematics
1 answer:
Alexxandr [17]3 years ago
7 0
What problem? i need an example or picture... sorry 
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Add the product of 5 and 6 with the product of 3 and 7
xz_007 [3.2K]

It is 51.                                           

5x6=30

3x7=21

30+21=51

Hope that I was of help.

5 0
3 years ago
Read 2 more answers
a regular rectangular pyramid has a base and lateral faces that are congruent equilateral triangles. it has a lateral surface ar
Margarita [4]
A pyramid is regular if its base is a regular polygon, that is a polygon with equal sides and angle measures.
(and the lateral edges of the pyramid are also equal to each other)

Thus a regular rectangular pyramid is a regular pyramid with a square base, of side length say x.

The lateral faces are equilateral triangles of side length x.

The lateral surface area is 72 cm^2, thus the area of one face is 72/4=36/2=18  cm^2.

now we need to find x. Consider the picture attached, showing one lateral face of the pyramid.

by the Pythagorean theorem: 

h= \sqrt{ x^{2} - (x/2)^{2}}= \sqrt{ x^{2}- x^{2}/4}= \sqrt{3x^2/4}= \frac{ \sqrt{3} }{2}x

thus, 

Area_{triangle}= \frac{1}{2}\cdot base \cdot height\\\\18= \frac{1}{2}\cdot x \cdot \frac{ \sqrt{3} }{2}x\\\\ \frac{18 \cdot 4}{ \sqrt{3}}=x^2

thus:

x^2 =\frac{18 \cdot 4}{ \sqrt{3}}= \frac{18 \cdot 4 \cdot\  \sqrt{3} }{3}=24 \sqrt{3}       (cm^2)

but x^{2} is exactly the base area, since the base is a square of sidelength = x cm.


So, the total surface area = base area + lateral area =  24 \sqrt{3}+72   cm^2


Answer: 24 \sqrt{3}+72   cm^2

4 0
2 years ago
What is the slope of a line that is parallel to the line represented by the equation : y = 5x - 3?
Lerok [7]

Answer:

5

Step-by-step explanation:

This line equation is in  y = mx + b form    m will be the slope

 m = 5     parallel line will have same slope  = 5  

5 0
2 years ago
Rationalize
Neko [114]
1.414213562373095
This is an irrational number
5 0
2 years ago
Is 2x+3y=6 a Liner, Quadratic, or Exponential Equation. Why.
devlian [24]

Answer:

linear since there is a constant rate of change

Step-by-step explanation:

2x+3y=6

is simplified to 3y=-2x+6 which is divided by 2 to give us y=-2/3+2

4 0
3 years ago
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