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g100num [7]
3 years ago
9

three times the perimeter of a triangle is the same as 75 decreased by twice the perimeter. what is the perimeter of the triangl

e?
Mathematics
1 answer:
Tju [1.3M]3 years ago
3 0
Let the perimeter be x.

3x = 75 - 2x

Add 2x from both sides:
5x = 75

Divide both sides by 5:
x = 15

Answer: The perimeter is 15 units.
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An object is launched with a velocity at 64 feet per second from a platform 30 feet high. the function H(t)= -16t2+64t+30 repres
PolarNik [594]
To find the maximum or minimum value of a function, we can find the derivative of the function, set it equal to 0, and solve for the critical points.

H'(t) = -32t + 64

Now find the critical numbers:

-32t + 64 = 0

-32t = -64

t = 2 seconds

Since H(t) has a negative leading coefficient, we know that it opens downward. This means that the critical point is a maximum value rather than a minimum. If we weren't sure, we could check by plugging in a value for t slightly less and slighter greater than t=2 into H'(t):

H'(1) = 32

H'(3) = -32

As you can see, the rate of change of the object's height goes from increasing to decreasing, meaning the critical point at t=2 is a maximum.

To find the height, plug t=2 into H(t):

H(2) = -16(2)^2 +64(2) + 30 = 94

The answer is 94 ft at 2 sec.
4 0
3 years ago
Jason bought 5 balloons . each balloon cost $.95 . how much did he pay altogether
Salsk061 [2.6K]

Answer:

4.75

Step-by-step explanation:

5 times $.95. equals $4.75

4 0
3 years ago
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The price of gravel is $24 for every 3/8 ton. kate wants to know the price of 2 tons of gravel
gayaneshka [121]

Answer:

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Step-by-step explanation:

your looking for 16/8, divide 16 by 3, leaving you with 5.333...

now times that by $24, and you have your answer hope this helps

3 0
3 years ago
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Find the distance between the points (3, 8) and (0,4).
Bingel [31]

Answer:

5

Step-by-step explanation:

(3,8) (0,4)

X1 = 3    X2 = 0

Y1 = 8    Y2 = 4

D=\sqrt{(X1-X2)^{2}+ (Y1-Y2)^{2}  }

D= \sqrt{(3-0)^{2} + (8-4)^{2} }

Do what's in the parentheses so...

  1. 3-0= 3
  2. 8-4= 4

Now plug it in!

D= \sqrt{(3)^{2}+(4)^{2}  }

Now you are going to finish the parentheses so...

  1. (3)^2= 9
  2. (4)^2= 16

Plug that in so that you have this...

\sqrt{9+16}

Add 9+16 to get...

\sqrt{25}

Then you are going to find the number or numbers that make this a perfect square...

\sqrt{25}= 5

So 5 is your answer

7 0
3 years ago
you are traveling on a bus at camp at a speed of 50mph. The number of miles traveled. N, after traveling t hours.
raketka [301]

i could tell you what n is if you tell me what t is

sorry not much help


8 0
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