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lyudmila [28]
4 years ago
15

An object moves along the x axis with its position x given as a function of time t by x(t) = Dt^2 - Ct + F

Mathematics
1 answer:
Afina-wow [57]4 years ago
6 0
I’m bad at this I Just wanted to comment and say goodluck to u and idk the
Answer soo yea sry
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Can someone please explain with answer?
ira [324]

Using: A^2+b^2=c^2

A&b= (√10)^2=10

10+10=c^2

20=c^2

(take the square root of 20)

c=2√5

Your answer is D

7 0
3 years ago
Read 2 more answers
WORTH 30 POINTS PLEASE HELP
Vlad1618 [11]
Group A:
1 dot at 9:     1 x    9 =     9
7 dots at 10: 7 x 10 =   70
8 dots at 15: 8 x 15 = 120
8 dots at 17: 8 x 17 = 136
6 dots at 19: 6 x 19 = 114

Mean: (9+70+120+136+114) / (1+7+8+8+6) = 449/30 = 14.97

Group B:
6 dots at 10: 6 x 10 = 60
5 dots at 14: 5 x 14 = 70
6 dots at 18: 6 x 18 = 108
5 dots at 25: 5 x 25 = 125
4 dots at 28: 4 x 28 = 112
4 dots at 29: 4 x 29 = 116

mean: (60+70+108+125+112+116) / (6+5+6+5+4+4) = 591 / 30 = 19.70

The group that has a lower mean age of painting students is Group A. Its mean is 14.97 or 15 years of age.
8 0
3 years ago
Read 2 more answers
Anthony leans a 28-foot ladder against a wall so that it forms an angle of 76^{\circ} ∘ with the ground. What’s the horizontal d
BabaBlast [244]

Answer:

Step-by-step explanation:

Cos \ 76 =\dfrac{adjacent \ side}{hypotenuse}\\\\0.2419=\dfrac{x}{28}\\\\\\0.2419*28=x\\\\\\x=6.7732

x =6.8 ft

5 0
2 years ago
Read 2 more answers
Am I correct? I don’t think I am, please explain how i can get the right answer if I got it wrong, thank you!
S_A_V [24]

Answer:

that's wrong, its 217 1/2 miles

Step-by-step explanation:

3/4 of a minute is 45 seconds

the easiest way to this is you figure there is 15 intervals of 3 seconds in 45 seconds so do 15 times 14.5 and get 217 1/2 miles

7 0
3 years ago
Read 2 more answers
What are the zeros of the function below?
Ivan
When you want to find zeros of rational expression you need to find at which points numerator is equal to zero. In this case, we have the product of three expressions.
x(x-1)(x+11)=0
A product is equal to zero whenever one of the factors is equal to zero. 
That means that zeros of our functions are:
1)x=0
2)x-1=0
x=1
3)x+11=0
x=-11
The final answer is a. Function has zeros at (0, 1, -11).

3 0
3 years ago
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