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Sedaia [141]
3 years ago
6

Do anybody know this ???

Mathematics
1 answer:
vaieri [72.5K]3 years ago
7 0

Answer:

option D

Step-by-step explanation:

18 1/5 + 22 2/5 +40 1/5

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LOOK AT THE PICTURE! please help, thanks
yanalaym [24]

the corner angle=90⁰ 45+45+90=180

5 0
3 years ago
The height of a toy rocket that is shot in the air with an upward velocity of 48 feet per second can be modeled by the function
NikAS [45]

Answer:

maximum height reached = 35 feet

and f(t) = 48t-16.07t^{2}

Step-by-step explanation:

writing linear motion equations

s = ut + \frac{1}{2}at^{2}

where s is the total displacement, u the initial velocity, t the time travelled, and a is the acceleration.

given u = 48 ft/s, and a = acceleration due to gravity g = -9.8\frac{m}{s^{2}}

1 m = 3.28 feet therefore g becomes -9.8×3.28\frac{ft}{s^{2}}

here negative sigh comes as acceleration due to gravity is in opposite direction of initial velocity.

therefore f(t) becomes f(t) = 48t-16.07t^{2}

to find max height we should find differentiation of f(t) and equate it to 0

therefore we get 48 = 32.144t

t = 1.49 s

therefore max height f(1.49) = 71.67-36.67 = 35 feet

4 0
3 years ago
Read 2 more answers
What is the value of the range of the function f(x)=2x^2-3x+8 for the domain value 3
Lelechka [254]
The domain is the same as the x value and the range is the same as the y value, so you just plug in the 3 to all the x's.

f(x) = 2 ({3})^{2}  - 3(3) + 8 \\ f(x) = 18 - 9 + 8 \\ f(x) = 17
the range of the function is 17
5 0
3 years ago
Need help for these two questions, any help is appreciated ​
kherson [118]

Answer:

I believe the answer is C

Step-by-step explanation:

5 0
3 years ago
Help me please! Thank you
frez [133]
The answer is C.
Hope that helps
7 0
3 years ago
Read 2 more answers
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