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docker41 [41]
4 years ago
12

An object is launched from a platform. Its height (in meters), x seconds after the launch, is modeled by: h(x)=−5x2+20x+60 what

is the height of the object at the time of the launch (answer in meters)
Mathematics
1 answer:
RSB [31]4 years ago
5 0

Answer:

60 meters

Step-by-step explanation:

We are looking for the height when <em>x</em> = 0. When <em>x</em> is equal to zero, we get the y-int and height of 60.

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72÷8+3.4-105÷5<br>they say the answer is 0 but don't see how.
Sidana [21]
72/8 +3*4 - 105 /5
= 9 + 12 - 21
= 21 -21
= 0
4 0
3 years ago
The radius of a circle is 7 cm what is the cirfufance​
OlgaM077 [116]

Answer:

44 cm

Step-by-step explanation:

The circumference (C) of a circle is calculated using the formula

C = 2πr ← where r is the radius

here r = 7, hence

C = 2 ×π × 7 = 14π ≈ 44 cm ( to nearest whole number )

4 0
4 years ago
GIVING BRAINLIEST!
alexira [117]

Answer:

a= 8x+6x+48x+1

Step-by-step explanation:

Area of large rectangle is represented by a

a= 8x+6x+48x+1 - This is expanded form

Can be simplified to a= 62x+1

5 0
3 years ago
What is the circumference of the circle? Use 3.14 for x
GuDViN [60]

Answer:

C = 6.28r

Step-by-step explanation:

If the circumference of a circle is C, then C = 2(3.14)r, where r is the radius.

Then C = 6.28r

3 0
3 years ago
I really need help with this question. I have attached two screenshots, the first is the question and the second one is the opti
Sliva [168]

Using proportions, it is found that the coordinates of point B are given as follows:

A. (1.6, 0).

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Point B is 3/4 of the way from AB to AC, hence:

B - A = \frac{3}{4}(C - A)

The points are:

  • A(-2,-3).
  • B(x,y).
  • C(3,1).


Then, to find the x-coordinate:

x + 2 = \frac{3}{4}(3 + 2)

x + 2 = 3.6.

x = 1.6.

For the y-coordinate:

y + 3 = \frac{3}{4}(1 + 3)

y + 3 = 3

y = 0.

Hence option A is correct.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

5 0
2 years ago
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