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asambeis [7]
3 years ago
11

Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed i

n scientific notation?
Mathematics
2 answers:
Alla [95]3 years ago
5 0
I think 4.2 x 10^6 is the answer you're looking for.
ludmilkaskok [199]3 years ago
3 0
The answer could be 4.2E6
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Nookie1986 [14]
I think the kite is at a 45 degree angle
8 0
3 years ago
What is the slope and y-intercept of 6x-5y=13
DaniilM [7]

Answer:

The slope is 6/5 and the y intercept is -13/5

Step-by-step explanation:

6x-5y=13

Solve for y

Subtract 6x from each side

6x-6x-5y=-6x+13

-5y = -6x+13

Divide by -5

-5y/-5 = -6x/-5 +13/-5

y = +6/5x -13/5

This is in slope intercept form y = mx+b where m is the slope and b is the y intercept

The slope is 6/5 and the y intercept is -13/5

5 0
3 years ago
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th
Anni [7]

Answer: The rocket will reach its max after 4 seconds

Step-by-step explanation:

Hi, to find the maximum height, we have to set the first derivative of the equation equal to zero.

y=-16x^2+128x+136

0 = (2)-16x +128  

0= -32x+128

Solving for x:

32x = 128

x = 128/32

x = 4 seconds

The rocket will reach its max after 4 seconds

Feel free to ask for more if needed or if you did not understand something.

7 0
3 years ago
Jason can read 850 words in 5 minutes. Ashley can read 804 words in 4 minutes. Who reads at a faster pace per minut
Vedmedyk [2.9K]
850/5=170
804/4=201

Ashley can read faster
8 0
3 years ago
If cos θ > 0, which quadrant(s) could the terminal side of θ lie?
Sergeeva-Olga [200]

Answer:

I and IV

Step-by-step explanation:

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Can remember by All Star Trig Class

meaning all the trig funtions are positive in quadrant I

sin is positive in II

tan is positive in III

and cos is positive in IV

8 0
3 years ago
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