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2 years ago

Determine the x-intercept of the following equation. (-x-2)(x-3)=y

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

7 0

Answer:

3,-2

Step-by-step explanation:

set y =0 and solve

(-x-2)(x-3)=0

the values 3, -2 solve the equation and are your x-intercepts

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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

3 0

4 years ago

Ronald is calculating the time required to fill the swimming pool at school. He found that it takes 15 minutes to fill the swimm

Alik [6]

Answer:

C. 9 gallons per minute

Step-by-step explanation:

Divide 135 by 15 to see how many gallons he can fill in one minute.

135 ÷ 15 = 9

Hope this helps!

6 0

2 years ago

If you have 60 million what would 48% be

Anika [276]

60 000000 × 48%
= 28800000

6 0

3 years ago

Of the 48 oranges in a carton 1/3 of them were rotten Ben and David took the remaining good oranges it's been took eat my orange

Burka [1]

Answer:

David took 16 oranges.

Step-by-step explanation:

We are given the following in the question:

Total number of oranges = 48

Oranges rotten =

$\dfrac{1}{3}$

Number of oranges rotten =

$\dfrac{1}{3}\times 48\\\\=16$

There were 16 rotten oranges.

Number of good oranges left =

$= 48-16\\=32$

These are equally divided among Ben and David.

Number of oranges each Ben and David get =

$\dfrac{32}{2} = 16$

Thus, David took 16 oranges.

8 0

3 years ago

If two perpendicular then they intersect to form _____angles.

muminat

right angles or 90º angles

4 0

3 years ago