3.2x-1.7x+5.5=10

How dI yoI solve this

Answer:

The ball will not reach a height of 41 meters.

The discriminate is 784

Step-by-step explanation:

You know that the height h of the ball, in meters, at time t seconds is modeled by the function h(t) = - 5*t² + 2*t + 39

To find out if the ball will reach a height of 41 meters, you must calculate the maximum of the function, that is, the highest or highest point on the graph.  That is, the maximum in a function f is the largest value that the function takes.

The vertex is a point that is part of the parabola, which has as its ordinate the maximum value (as in this case) or minimum value of the function. That is, the vertex is the maximum of the function (as in this case) or minimum.

In this case, the maximum of t is obtained by:

[tex]t=\frac{-b}{2*a}[/tex]

Being a=-5 and b=2 (comparing with a quadratic function of the form: f(x)=a*x² + b*x +c)

[tex]t=\frac{-2}{2*(-5)}[/tex]

t= 0.2

The maximum height value must be obtained by substituting the previously calculated value of t in the function:

h(0.2) = - 5*0.2² + 2*0.2 + 39

h(0.2)=39.2

So the maximum height the ball will reach is 39.2 meters. The ball will not reach a height of 41 meters.

The discriminate of a quadratic function is:

Δ=b²-4*a*c

In this case, being a=-5, b=2 and c=39, the discriminate is:

Δ=2²-4*(-5)*39

Δ= 4+780

Δ= 784

The discriminate is 784

The first derivative test is the process of analyzing functions using their first derivatives in order to find their extreme point.

No, ball can not reach at height of 41 meters.

Since, The height h of the ball, in meters, at time t seconds is modeled by the function  [tex]h(t)=-5t^2+2t+39[/tex]

To find maximum height where can ball reach. We use first and second derivative test.

[tex]h(t)=-5t^2+2t+39\\\\\frac{dh}{dt}=-10t+2[/tex]

Now, equate above derivative to zero.

 [tex]-10t+2=0\\\\t=1/5[/tex]

Now, find second derivative

[tex]\frac{d^{2}h }{dt^{2} } =-10[/tex]  , Which is less than zero.

Therefore, at t= 1/5 second , will give maximum height that can ball reach.

So,  h(1/5) = 39.2 meters.

That is, ball can reach at 39.2 meters.

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Answer: you got it right, it is the one that is blue highlighted.

Answer:

12

Step-by-step explanation:

5+4 is 9, and nine plus three is twelve

Answer:

12

Step-by-step explanation:

Simple meths

Answer:

5

Step-by-step explanation:

mark braniac

Answer:

x = 5

Step-by-step explanation:

let's take the blank as x

(-2+5) (x)/3 = 5

3 × x/3 = 5

cross multiply

3x = 15

x = 5

Answer:

  no solution

Step-by-step explanation:

Subtract 10y from both sides of the equation:

  10y -10y = 10y -10y -2

  0 = -2 . . . . FALSE

There are no values of y that will make this be true. The given equation has NO SOLUTION.

Answer:

Step-by-step explanation:

7 - (6x + 3)

7 - 6x - 3 = 4 - 6x

Answer:

6x-4=4x+14

Step-by-step explanation:

x=

9

Answer:

When we do not have anything cut of the rectangle, the area is:

8in*5in = 40in^2.

Now, when we cut squares of length x in the corners, the measures of the base will be:

8in - 2*x

5in - 2*x

We subtract two times x in each case because we cut the squares in the four corners. (below you can see a drawing of this situation, where the doted rectangle is the area that we want to calculate)

Then the area as a function of x is:

A = (8in - 2*x)(5in - 2*x) = 40in^2  + 4*x^2 - 26*x

Answer:

9 x (4+9)

9(4) + 9(9)

36 + 81 = 117

Distribute (multiply) your first value to the values

good luck

Answer:

117

Step-by-step explanation:

I hope this helps!

Answer:6

Step-by-step expla

Answer:

y= 1x-2

Step-by-step explanation:

The slope is 1.

The y- intercept is (0,-2)

In the equation

y= 1x-2

Hope this helps!

ab/2=a*b

i think if not please let me know

Answer:

the first table

Step-by-step explanation:

because there's one output for every input

all the numbers under y are imcresing by the samw number(3)

Answer:

6/11

Step-by-step explanation:

Fraction that are girls

girls/ total

6/11

Answer:

6/11

Step-by-step explanation:

5+6=11 girls =6 so 6/11

Answer:

28,42,56,70,84

Step-by-step explanation:

Answer:

14,28,42,56,70

Step-by-step explanation:

hope it helps

Answer:

1

Step-by-step explanation:

1111111111111111111

Answer: $43,980

Step-by-step explanation:

APEX

Answer: B) $43,980

Step-by-step explanation:

Demon Slayer

Answer:

yes

Step-by-step explanation:

divide each by 7 =

21/7 = 3

28/7 =4

35/7 = 5

3,4,5 are always a perfect triple, and multiples of 345 are perfect triples as well. Therefore, they are sides of a right triangle.

Answer:I may not be right but i think it D Im sorry if im wrong

Fnfjfjf

Step-by-step explanation:

B. 3 and -4 is the answer.

Let they be x.

Cost of textbooks + laptops cant greater than total amount.

(cost of 1 textbooks * number of textbooks) + (cost of 1 laptop * number of laptops ≤ 6500

(30*116) + (x*439) ≤ 6500

3480 + 439x ≤ 6500

439x ≤ 3020

x ≤ 6.8(approx)

Last natural number is 6, says, they can buy 6 laptops at max.

Answer:

x = - 4

Step-by-step explanation:

Hi there !

 if f(x) = 2x + 7 and f(x) = -1 =>

2x + 7 = - 1

2x = - 1 - 7

2x = - 8

x = - 8 ÷ 2

x = - 4

Good luck !

Answer:

ay

Step-by-step explanation: step by step

Answer:

4. <3 and <7

Step-by-step explanation:

Corresponding angles are  any pair of angles each of which is on the same side of one of two lines cut by a transversal and on the same side of the transversal, and angles 3 and 7 were the only angles that matched this criteria.

Hope this helps :)

Answer:

what are the choices A,B,C,D