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romanna [79]
3 years ago
5

Study the steps used to solve the equation

Mathematics
1 answer:
svet-max [94.6K]3 years ago
8 0

Answer:

c = 24

Step-by-step explanation:

The given equation is :

\dfrac{c}{2}-5=7

Adding both sides by 5 both sides,

\dfrac{c}{2}-5+5=7+5\\\\\dfrac{c}{2}=12

Cross multiplying both sides,

c=2\times 12

c = 24

So, the value of c is 24.

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A rectangle has coordinates A(-4?4), B(0,0), C(6,8), and D(2,11) what is the area of the rectangle
Pani-rosa [81]

Answer:

The area of the rectangle is 56

Step-by-step explanation:

Thank you for this question.

find the distance between AB and BC

the formula for that is \sqrt{(x2-x1)^2+(y2-y1)^2}

lets do this first

AB=\sqrt{((0--4)^2+(0-4)^2)} \\AB=\sqrt{4^2+(-4)^2} \\AB=\sqrt{16+16} \\AB=\sqrt{32} \\AB=5.6\\\\BC=\sqrt{(0-6)^2+(0.8)^2}\\BC=\sqrt{(-6)^2+(-8)^2}\\BC=\sqrt{36+64}\\BC=\sqrt{100}\\BC=10

Now multiply the lengths of AB and BC

10*5.6=56

The area of the rectangle is 56

Hope this helps :)

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3 years ago
What is the midline equation of y=-8cos(3pi/2 x +1)
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Answer:

I'vehad to solve these questions before and perosnally math      way helps its a site and helps solve questions check it out and thanks me later(: Have a nice afternoon/night/morning.

Step-by-step explanation:

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3 years ago
If I have five gallons of paint and I used 3/4 of the five gallons how much do I have left over ​
Yuliya22 [10]

Answer:

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Step-by-step explanation:

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3 years ago
Carrie has 300 marbles 25 of the marbles are green 15% of the marbles are red and the rest of the marbles are blue how many blue
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Answer:

230.

Step-by-step explanation:

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Hope this helps!

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