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Travka [436]
3 years ago
5

a cliff diver leaps from a 100-foot cliff into the pacific. the divers height above the water is modeled by the function P(x) =

-16x^2 + 10x + 100, where x is time in seconds. during which interval is the diver at least half way down
Mathematics
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

2.1 < x < 2.5 seconds

Step-by-step explanation:

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The vertex angle of an isosceles triangle is 20° less than the sum of the base angles. Which system of equations can be used to
WINSTONCH [101]

The answer to the above question can be explained as under -

We know that, the sum of angles of triangle is 180°.

So, vertex angle plus base angles are equal are equal to 180°.

Let the vertex angle be represented by "v" and base angles be represented by "b".

Thus,  v + b + b = 180°

So,  v + 2b = 180°

Next, the question says, the vertex angle is 20° less than the sum of base angles.

Thus, 2b - 20° = v

<u>Thus, we can conclude that the correct option is A) v + 2b = 180°, 2b - 20° = v</u>

6 0
3 years ago
Magnetism: So I need help on this question but please explain how you got the answer so I can learn and better provide evidence
kramer

Step-by-step explanation:

A) as you can see there is no current flowing in a bar magnet so (incorrect)

B) Lines of magnetic field is going in A-->B direction so it have starting and ending points.(incorrect)

C) Yes whenever a magnetic object is placed near the another magnetic object they either attract or repell so they have a force in a form of push and pull [correct]

D)No because magnetic field lines goes from North--> South so A is the South pole [ incorrect]

E) Yes it will point always towards North pole of the magnet [correct]

F) yes it depends upon the density of field lines[correct]

G)No the near the magnet is it becomes more stronger as compared to magnet kept far.(incorrect)

So option C E F are correct

Hope this helps

Have a great day

7 0
2 years ago
Lillian but for hairbrushes at $3.99 each.She had a coupon for $1 off. Her mum paid for half of the remaining cost.Evaluate a nu
Savatey [412]
She will pay $1.50 for the hairbrush and her mum paid $1.50 as well
3 0
3 years ago
Pleaseeeeeee help me
leva [86]

Answer:

I dine at home

Step-by-step explanation:

6 0
2 years ago
Find the differential of
anyanavicka [17]

f(x,y)=x^2+y^3\implies \left.\cfrac{}{} 2x+3y^2 \right]_{\stackrel{\textit{\small x=2}}{\textit{\small y=1}}}\implies 2(2)+3(1)^2\implies 7

8 0
2 years ago
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