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Shalnov [3]
3 years ago
6

Use the formula h=16t^2 to solve the problem . A diver dives from a cliff that has a height of 86.4 feet. Determine the time of

the dive . Round answer to the nearest tenth of a second
Mathematics
1 answer:
sdas [7]3 years ago
3 0
<span>2.3 seconds. Let's assign the known values to the equation and solve for t. h = 16t^2 86.4 = 16t^2 5.4 = t^2 2.323790008 = t Rounding to the nearest tenth of a second gives 2.3 seconds.</span>
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Write a function, f(x), which has a maximum and a y-intercept of −3.
LUCKY_DIMON [66]
Answer: One possible equation could be y = -2x^2 - 3.

The equation that is given would be in the shape of an upside down parabola. It would have a maximum (vertex) at (0, -3). 

The point (0, -3) would also be the y-intercept of the graph.

You could change the -2 to any other negative number and the equation would work in your problem.

3 0
3 years ago
Consider the polynomial function p given by p(x)=7x^3-2x^2+3x+10. Evaluate the function for p(-3). Show your work.
Norma-Jean [14]

Answer:

p(-3)=-206

Step-by-step explanation:

p(-3)=7x^3-2x^2+3x+10

p(-3)=7(-3)^3-2(-3)^2+3(-3)+10

p(-3)= 7(-27)-2(9)-9+10

p(-3)= -189-18-9+10

p(-3)= -206

In the function p(x), the leading coefficient is 7, the constant is 10, and the degree is 3.

Hope this helps!

3 0
3 years ago
Read 2 more answers
Jane walks 6 miles in 2 hours. Find the unit rate.
Viefleur [7K]
She walks 3 mph because when you divide it by 2 it will equal 

3 miles in 1 hour
7 0
3 years ago
Read 2 more answers
Please help !!! I have no idea what I’m doing and can’t find anyone to teach me this
rewona [7]

Answer:

The required equation in factored form is: \mathbf{y=-4(x+2)(x-1)}

Step-by-step explanation:

In this question we need to find the equation of the graph in factored form.

The factored form will be: f(x)=a(x-r_1)(x-r_2)..

where a is y-intercept and r₁, r₂ are x-intercepts

X-intercepts

When y=0, the values of x axis are known as x-intercepts

Y-intercepts

When x=0, the values of y-axis are known as y-intercepts.

Looking at the graph finding x-intercepts

When y=0 x=-2 and 1

So, we have

r₁ = -2

r₂ = 1

Looking at the graph finding y-intercepts

When x=0, y=-4

So, a = -4

Putting values in the formula we will get:

f(x)=a(x-r_1)(x-r_2)\\f(x)=-4(x-(-2))(x-1)\\f(x)=-4(x+2)(x-1)

So, the required equation in factored form is: \mathbf{y=-4(x+2)(x-1)}

3 0
3 years ago
81 is divisible by?<br><br> 1. 3<br> 2. 4<br> 3. 6<br> 4. 8
KonstantinChe [14]

Answer:

3 is the correct answer hope it helps

7 0
2 years ago
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