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Murljashka [212]
2 years ago
6

Is the inverse F(x) a function

Mathematics
1 answer:
kari74 [83]2 years ago
5 0
No f(x) is the value of a function
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X^2=4x-15 solve with Quadratic formula
bulgar [2K]

Answer:

x=2+i\sqrt{11}

x=2-i\sqrt{11}

Step-by-step explanation:

we have

x^{2} =4x-15 -------> x^{2}-4x+15=0

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}-4x+15=0

so

a=1\\b=-4\\c=15

substitute in the formula

x=\frac{-(-4)(+/-)\sqrt{-4^{2}-4(1)(15)}} {2(1)}

x=\frac{4(+/-)\sqrt{16-60}} {2}

Remember that

i=\sqrt{-1}

x=\frac{4(+/-)\sqrt{-44}} {2}

x=\frac{4(+/-)2i\sqrt{11}} {2}

x=\frac{4(+)2i\sqrt{11}}{2}=2+i\sqrt{11}

x=\frac{4(-)2i\sqrt{11}}{2}=2-i\sqrt{11}

7 0
3 years ago
What must you do if the base is not a triangle or rectangle?
nikklg [1K]

Answer:

please write complete question

7 0
2 years ago
What is the answer to this problem?
Vladimir [108]
Volume of cone = (pi/3)r^2h
Volume of hemisphere = (1/2) (4pi/3)r^3

we are given r=6/2=3cm, h(cone)=8 cm,
so total volume
=(pi/3)r^2h + (1/2)(4pi/3)r^3
=(pi/3)*3^2*8 + (1/2)(4pi/3)*3^3
=24pi + 18pi
=42pi cm^3
=131.9 cm^3 (approx.)
7 0
3 years ago
Find the area. Use 3.14 for the value of pi. Round your answer to the nearest tenth. diameter = 14 yd​
sergij07 [2.7K]
A=pi(radius)^2

Radius=Diameter/2

Radius= 14/2=7yds

A=3.14(7)^2

A=153.86yds
8 0
3 years ago
Read 2 more answers
A group of scientists is conducting an experiment on the effects of media on children. They randomly select 100 children and ran
Marysya12 [62]

The statements that are true about this study are:

  • This study uses random sampling.
  • This study uses a control group.
  • This study uses a repeated measures design. ​

Random sampling occurs when each sample has an equal probability of being chosen in a study.

This is seen in the random selection of 100 children. The Control group was used with the first group that had no screen time.

The repeated measures design was also used when multiple measurements were taken during different weeks.

Learn more about experiments here:

brainly.com/question/17216882

8 0
2 years ago
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