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3 years ago

Please Help, i will give brainiest. Please solve the problem about Sara kicking football.

Mathematics

1 answer:

sashaice [31]3 years ago

8 0

Answer:

20 m

Step-by-step explanation:

The maximum height is given by the vertex form of the equation, that is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Given

h(t) = - 5t² + 20t ← factor out - 5 from each term

= - 5(t² - 4t)

Using the method of completing the square

add/subtract ( half the coefficient of the t- term)² to t² - 4t

h(t) = - 5(t² + 2(- 2)t + 4 - 4 )

= - 5(t - 2)² + 20 ← in vertex form

with vertex = (2, 20 )

The maximum height is at the value of k = 20

That is the maximum height is 20 m

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.pls help with this question

Nonamiya [84]

Answer:

You will find it.

Explanation:

Replace the X value in each answer's formula with the table's value, then find the answer.

Ex: A. y = 4x + 4

if x = -1

=> y = 4.(-1) + 4 = 0 (not match y value in the table) => the answer is not A

6 0

2 years ago

Read 2 more answers

Almonds cost $5.20 per pound Raisins cost $2.75 per pound Priya spent $11.70 of buying almonds & raisins Equation: 5.20+2.75

murzikaleks [220]

Answer:

If she bought 2lbs of almonds, she bought 0.4lbs of raisins. If she bought 1lb of almonds, she can buy up to 2.36lbs of raisins. If she bought 0.64lbs of almonds, she can buy up to 1.9lbs of almonds.

Step-by-step explanation:

6 0

4 years ago

Anna is making a banner out of 4 congruent triangles as shown below. How much blue trim will she need for each side

Ede4ka [16]

Answer:

The length of each blue trim is 17.2 inches

Step-by-step explanation:

Given

See attachment for banner

Required

The length of each blue trim

Since all 4 triangles are equal, then the dimension of 1 triangle is:

$Side\ 1 = 10$

$Side\ 2 = 14$

The hypotenuse (x) of the triangle blue trim is represented by the blue trim

So:

$x^2 = Side\ 1^2 + Side\ 2^2$

This gives

$x^2 = 10^2 + 14^2$

$x^2 = 100 + 196$

$x^2 = 296$

Take square root

$x = \sqrt{296$

$x = 17.2in$

3 0

3 years ago

What is the equation of the line in the graph

olga2289 [7]

the equation of the line is y = 3.

the slope of the line is 0.

the y-intercept is 3, so plug it into the slop-intercept-form equation:

y = mx + b

y = 0x + 3

y = 3

hope this helps!

8 0

3 years ago

The graph represents a function. Find the input value corresponding to an output of 2.

nasty-shy [4]

Answer:

-2

Step-by-step explanation:

The output is y- value, the input is x-value

We can see on the graph y= 2 corresponds to x = -2

So the coordinates of same point are (-2, 2)

-2 is the answer

6 0

4 years ago