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dybincka [34]
4 years ago
7

What is the cross section created when a vertical slice is made perpendicular to the 2 bases of a triangular prism?

Mathematics
1 answer:
Natalija [7]4 years ago
4 0
This is always a rectangle, because it will have 2 sides parallel the bases, and the other 2 sides are perpendicular to any line in the plane of the bases (property of a prism) this makes them parallel as well, because they are perpendicular to parallel lines and makes the shape a rectangle.
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Find the domain of the rational function.<br><br> C(x) = x+9/X^2 -16
scoundrel [369]

Answer:

Domain = {x : x ≠ 4 , -4}  or  (-∞ , -4) ∪ (-4 , 4) ∪ (4 , ∞)

Step-by-step explanation:

<u>TO FIND :-</u>

  • Domain of C(x) = \frac{x + 9}{x^2 - 16}

<u>SOLUTION :-</u>

Domain of a function is a value for which the function is valid.

The function C(x) = \frac{x + 9}{x^2 - 16} is valid until the denominator is 0.

So make sure that the denominator must not be 0.

=> x^2 - 16 > 0

Find the values of x for which the denominator becomes 0. To find it , you'll have to solve the above inequality.

  • Add 16 to both the sides

=>x^2 - 16 + 16 > 0 + 16

=> x^2 > 16

=> x > \sqrt{16}

=> \boxed{x > 4} \: or \:\boxed{x > -4}

We can say that <u>4 & -4 can't be domains</u> because these values will make the function undefined.

Now try putting values of x such that -4 < x < 4. You'll observe that the function will be valid for all those values of x between -4 & 4.

<u>CONCLUSION :-</u>

The function will be valid for any value of 'x' except 4 & -4. So in :-

Interval notation , it can be written as → (-∞ , -4) ∪ (-4 , 4) ∪ (4 , ∞)

Set builder notation , it can be written as → {x : x ≠ 4 , -4}

6 0
3 years ago
Can somebody plz answer these 3 questions correct!!! Help<br> (WILL MARK BRAINLIEST
LiRa [457]

<em>it increases 3° each hour</em>

3*2= 6

6° after 2 hours

3*3= 9

9° after 3 hours

3*6= 18

18° after 6 hours

5 0
3 years ago
Read 2 more answers
Solve the expression<br> 6×6×7×7×7=
fredd [130]
6 x 6 x 7 x 7 x 7 =
6² x 7³
6² = 36
7³ = 343
36 x 343 = 12348

Hope This Helps You!
<span>Good Luck Studying :)</span>
3 0
3 years ago
PLEASE HELP I WILL MARK BRAINLY
Delicious77 [7]

Answer:

a only

Step-by-step explanation:

its a negative change b is a positive and there is no "a and c" choice listed

6 0
3 years ago
Question 17. A circular flower bed has a diameter of 20 cm, what is the
True [87]
a 62.84 cm i believe , what unit are you on ?
7 0
3 years ago
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