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Tcecarenko [31]
3 years ago
9

What is the range of y = -x2 - 2x + 3?

Mathematics
2 answers:
Firlakuza [10]3 years ago
6 0
The answer is x2-5 and the reason is that if you carry the two then add the four this is the answer
swat323 years ago
4 0

Answer:

y =  -  {x}^{2}  - 2x + 3 \\ y = (x  + 3)(x - 1) \\ range \:  =  - 3 \leqslant x \leqslant 1

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How many of these pitchers can a cylinder with height 9 inches and 2r fill? Explain how you know.
irakobra [83]

Answer:

4 pitches

Step-by-step explanation:

if a cylinder with height 9 inches and radius r is filled with water, it can fill a certain pitcher. how many of these pitchers can a cylinder with height 9 inches and radius 2r fill? explain how you know.

Solution:

The volume of a cylinder is given by:

V = πr²h;

where V is the volume, r is the radius of the cylinder and h is the height of the cylinder.

A cylinder with height 9 inches and radius r can fill a certain pitcher. Therefore the volume of the cylinder is:

V = πr²h = πr²(9) = 9πr²

V = volume of pitcher = volume of cylinder with radius r = 9πr²

For a cylinder with height 9 inches and radius 2r its volume is:

V2 = πr²h = π(2r)²(9) = 36πr²

Therefore, the number of pitchers a cylinder with height 9 inches and radius 2r can fill is:

number of pitches = 36πr² / 9πr² = 4

Therefore a cylinder with height 9 inches and radius 2r can fill 4 pitches.

3 0
2 years ago
2. Given f(x) = 4x -2 and g(x) = x2 + 1, evaluate:
Novosadov [1.4K]

Answer:

a).

f(5) = 18

b).

g(-3) = 10

c).

g(x-2) = x²- 3

d).

f(g(x)) = 4x²- 1

3 0
2 years ago
What percent of 50 is 9?
d1i1m1o1n [39]
9 is 18% of 50. So, 50 percent also written as 50% means 50 out of 100 parts. Since there are exactly two 50s in 100, fifty percent is the same number as one half. 50 percent=0.5 in but as a fraction, its 1/2. 
8 0
2 years ago
D= 2 - 6c <br> 1%2c - c = 1
omeli [17]
V????????????????????????????????????????????????????????????????13
3 0
3 years ago
What is the difference between a relation and a function in mathematics?
Alexandra [31]
A relation are two sets of elements noted as input and output. Within relations, the input and the output have something in common.

A function is also about input and output but in a function, the input has nothing in common with the output.
6 0
3 years ago
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