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marta [7]
3 years ago
13

If the graph of f(x) = x is shifted up 9 units, what would be the equation of the new graph?

Mathematics
1 answer:
MariettaO [177]3 years ago
7 0

Answer:

f(x) = x + 9

Step-by-step explanation:

y = f(x) + C C > 0 moves it up

To shift it up 9 units

f(x) = x + 9

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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
Pleaseeeeeeeeeeeee help me!!!!!
Aneli [31]
Answer is 150/x see photo for solution

4 0
3 years ago
Please help me
lilavasa [31]

Answer:

$18.51

Step-by-step explanation:

23.42×.21= 4.91 then 23.42-4.91= your sale price which is $18.51

5 0
2 years ago
Help with this immediately​
ratelena [41]

Answer:

just type the values in your google

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
$134500 round to the nearest ten thousand
AlexFokin [52]
The rounded number is 140000
6 0
3 years ago
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