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3 years ago

Giving brainliest to the CORRECT answer

Mathematics

1 answer:

eimsori [14]3 years ago

3 0

brainliest pls pls pls

Step-by-step explanation:

x is greater than 1

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(30 POINTS) What are the y intercepts of the circle whose equation is (x+2)^2+(y-4)^2=13?

muminat

Hello from MrBillDoesMath!

Answer: Choice C

Discussion:

The y-intercepts are the x values where y = 0. Substituting y = 0 in the equation gives

(x+2)^2 + (0-4)^2 = 13 =>

(x+2)^2 + 16 = 13 =>

Subtract 16 from both sides

(x+2)^2 = 13 - 16 = -3 (*)

The square of a real number is greater than or equal to 0. (Not true for complex numbers). The left side of (*) is therefore >= 0 but as also equals -3. This is not possible so there is no solution to the equation. Choice C.

Thank you,

MrB

6 0

4 years ago

Starting from 300 feet away, a car drives toward you. It then passes by you at a speed of 48 feet per second. The distance d (in

navik [9.2K]

The answer to this question would be: 5 second

In this question, you are given the initial distance (300ft), car velocity(48ft/s) and the final distance(60ft). You are also given the equation to calculating the distance, so this question should be easier. The question is when the time where the distance is 60 ft. So the answer would be:

distance= 300-48t

60 = 300ft- 48t

48t= 300- 60=240

t= 5

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3 years ago

Solve the equation z/8 =-3

posledela

Z= -24, i hope this helps :)

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3 years ago

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a 4.50 g coin of copper absorbed 54 calories of heat. what was the final temperature of the copper if the initial temperature wa

I am Lyosha [343]

The final temperature of copper is 155.43°C.

Step-by-step explanation:

The formula to apply is Q=m*Δt*c where ;

Q=heat energy, m=mass, c=specific heat capacity and Δt= change in temperature

Given that Q=54 calories , m=4.50 g and c=0.092 cal/g°C

In this question find Δt then ,the final temperature.

Δt=Q/m*c

Δt=54/4.50*0.092 =130.43°C

To find final temperature, apply the formula;

Δt=Final temperature - Initial temperature

130.43°C=Final temperature-25°C

130.43°C+25°C=Final temperature

155.43°C

Learn More

Specific Heat Capacity : brainly.com/question/12431744

Keyword : specific heat capacity

#LearnwithBrainly

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4 years ago

The value of a collectible coin can be represented by the equation y = 2 x + 9.74, where x represents the number of years that C

wolverine [178]

$4.87 just took test my guy

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3 years ago

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