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il63 [147K]
3 years ago
6

Given the quadratic equation X2 - 5x + 10 = 0

Mathematics
1 answer:
lbvjy [14]3 years ago
7 0

Answer:

b

Step-by-step explanation:

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The height in feet, h, of a model rocket t seconds after launch is given by the equation h(t) = 3+70t - 16t^2. The average rate
andriy [413]

Answer:

The average rate of change

\frac{dh}{d t} = 70 (1) - 16(2t)

At   t = 1

\frac{dh}{d t} = 70 (1) - 16(2t) = 38

at t=3



Step-by-step explanation:

<u><em>Step(I)</em></u>:-

The given function  h(t) = 3+70t - 16t²

                          \frac{dh}{d t} = 70 (1) - 16(2t)

The       \frac{dh}{d t} = 70 (1) - 16(2t) =0

           70 - 32 t = 0

     ⇒   70 = 32 t

   ⇒     t = \frac{70}{32} = \frac{35}{16}

<em>Step(ii</em>):-

The average rate of change in h(t) between t = 1 second and t = 3 second

\frac{dh}{d t} = 70 (1) - 16(2t)

At   t = 1

\frac{dh}{d t} = 70 (1) - 16(2t) = 38

At t = 3



8 0
3 years ago
If a six pack of soda cost 2.46 how much is one can
Dafna11 [192]

Answer:

one can would be about $0.41

Step-by-step explanation:

Take $2.46 and divide it by 6 because that is the number of cans in the pack, the answer is $0.41 per can.

7 0
2 years ago
A king cobra has a mass of 8.845 kilograms. Round the mass to the nearest tenth kilogram.
nevsk [136]

Answer:

8.8 Kilograms

Step-by-step explanation:

5 0
4 years ago
Which of the following describe an angle with a vertex at E? Check all that apply. A. DEF B. DFE C. FED D. EFD
laiz [17]
The answers are A and C
PS you should give me the brainliest andswer
5 0
3 years ago
Read 2 more answers
Gina worked 32 hours at a rate of $24.50 per hour . which in the table will help her caculate her income tax for this week ?
shusha [124]
Alright, to start the problem, we need to know what Gina makes! If Gina worked 32 hours for $24.50 per hour, all we need to do is multiply 24.50 by 32 to get 748, which means that this week, Gina made $748!

Next, we need to look at the chart to see where he falls on income tax. Because Gina made more than $218, she makes too much for line 1. Because Gina made more than $758, she makes too much for line 2. 
Because Gina made less than $1762, and more than 753, it looks like Gina will fall into line 3, so your answer should be C!

6 0
4 years ago
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