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Gala2k [10]
3 years ago
14

............................

Mathematics
1 answer:
lilavasa [31]3 years ago
8 0

Answer:

............................

Step-by-step explanation:

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Pablo and max's follows a flight pattern approximatley modled by the equation h(t)=-8t^2+16t+2 where h(t)is their rocket's heigh
kodGreya [7K]

Answer: 2.11 s

Step-by-step explanation:

Given

Equation of rockets height is given by

\Rightarrow h(t)=-8t^2+16+2

Height will be zero once the rocket lands on the ground

So, we can write

\Rightarrow h(t)=0\ \text{or}\ -8t^2+16t+2=0\\\Rightarrow 8t^2-16t-2=0\\\\\Rightarrow t=\dfrac{16\pm \sqrt{(-16)^2-4(8)(-2)}}{2\times 8}\\\\\Rightarrow t=\dfrac{16\pm \sqrt{320}}{16}\\\\\text{Neglecting negative value of t}\\\\\Rightarrow t=\dfrac{16+17.888}{16}=2.11\ s

7 0
2 years ago
The scale on a map is 1cm: 7km. If two cities are 15cm apart on the map, what is the actual distance between the cities?
Vitek1552 [10]

Answer:

105km

Step-by-step explanation:

1/7=15/x

So x=7*15

x=105

8 0
2 years ago
Show your work in sketch. <br><br> (x-2)10
Soloha48 [4]
Answer ; 10x - 20

Explanation; Multiply each term in the parenthesis by 10. Then multiply the numbers, and you get your answer.
4 0
3 years ago
Read 2 more answers
Write the equation of the circle with center (−3, −2) and (4, 5) a point on the circle.
Naddika [18.5K]
1. distance = √((x₂-x₁)²+(y₂-y₁)²)= radius of the circle.

distance = √((4-(-3))²+(5-(-2))7²) = √98

2. (x-k)²+(y-h)²=r² center (-3,-2) which is (k,h)

(x-(-3))²+(y-(-2))²= (√98)²

(x+3)+(y+2)² = 98 is the equation
6 0
3 years ago
Read 2 more answers
Give the equation of the circle centered at the origin and passing through the point (0,3)
rusak2 [61]

Answer:

The equation would be x^2 + y^2 = 9

Step-by-step explanation:

In order to find this, start with the base form of the circle.

(x - h)^2 + (y - k)^2 = r^2

Now we input the center as (h, k).

(x - 0)^2 + (y - 0)^2 = r^2

x^2 + y^2 = r^2

Now we can input the radius of 3 in for r

x^2 + y^2 = 3^2

x^2 + y^2 = 9

5 0
2 years ago
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