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Alex Ar [27]
3 years ago
7

BRAINLIESTTTT ASAP! PLEASE ANSWER

Mathematics
2 answers:
iren [92.7K]3 years ago
6 0
H(t) = −16t^2 + 75t + 25
g(t) = 5 + 5.2t

A)
At 2, h(t) = 111, g(t) = 15.4
At 3, h(t) = 106, g(t) = 20.6
At 4, h(t) = 69, g(t) = 25.8
At 5, h(t) = 0, g(t) = 31
The heights of both functions would have been the closest value to each other after 4 seconds, but before 5 seconds. This is when g(x) is near 30 (26-31), and the only interval that h(t) could be near 30 is between 4 and 5 seconds (as it is decreasing from 69-0).

B) The solution to the two functions is between 4 and 5 seconds, as that is when their height is the same for both g(t) and h(t). Actually the height is at 4.63 seconds, their heights are both
What this actually means is that this time and height is when the balls could collide; or they would have hit each other, given the same 3-dimensional (z-axis) coordinate in reality.

meriva3 years ago
6 0

Answer and Explanation :

We have given that, The function  shows the height H(t) H(t)=-16t^2+75t+25, in feet, of a projectile after t seconds.      

A second object moves in the air along a path represented by g(t) = 5 + 5.2t, where g(t) is the height, in feet, of the object from the ground at time t seconds.          

We have to find :

Part A - Create a table using integers 2 through 5 for the 2 functions. Between what 2 seconds is the solution to H(t) = g(t) located?

To create a table substitute the value of t from 2 to 5 in the equation H(t) and g(t)  we get,

t       H(t)=-16t^2+75t+25          g(t) = 5 + 5.2t        

2      -16(2)^2+75(2)+25=111     5 + 5.2(2)=15.4

3      -16(3)^2+75(3)+25=106    5 + 5.2(3)=20.6

4      -16(4)^2+75(4)+25=69     5 + 5.2(4)=25.8

5      -16(5)^2+75(5)+25=0      5 + 5.2(5)=31

Now, To find the the interval in which H(t)=g(t) we have to plot the equations and the points.

We have seen that the intersection point of both the equation is  (4.632,29.088) and it lies between 4 to 5.

So, The solution to H(t) = g(t) located between t=4 and t=5.

Refer the attached figure below.

Part B - Explain what the solution from Part A means in the context of the problem.

Part A signifies that the projectile motion of the equations are same in the interval (4,5).

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What is the answer to this problem? 3-2(0-4)
Allisa [31]

Answer: -4

Step-by-step explanation:

3-2(0-4)

Do the parenthesis first

( 0 - 4 )

  ( -4 )

Then solve the other equation

3 - 2 = 1

put them back in order

1(-4)

Now solve for that and you have your answer

-4

 

8 0
3 years ago
Please help! I’m confused (both questions, 24 & 25) I need to find all of the letters shown and show my work.
svlad2 [7]

Problem 24

<h3>Answer: w = 120</h3>

-----------------

Work Shown:

We have an isosceles triangle. The angles opposite the congruent sides are congruent. These are the base angles each 30 degrees. The missing angle is w. The three angles add to 180

(angle1)+(angle2)+(angle3) = 180

30+30+w = 180

60+w = 180

60+w-60 = 180-60 ... subtract 60 from both sides

w = 120

======================================================

Problem 25

<h3>Answers:</h3><h3>x = 6.5</h3><h3>y = 5</h3>

-----------------

Work Shown:

The angle marks are all the same, so the three angles are congruent to one another. We consider this an equiangular triangle. Any equiangular triangle is also equilateral, meaning all three sides are the same length.

So,

2x-5 = 8

2x-5+5 = 8+5 ... add 5 to both sides

2x = 13

2x/2 = 13/2 ... divide both sides by 2

x = 6.5

and also,

y+3 = 8

y+3-3 = 8-3 ... subtract 3 from both sides

y = 5

3 0
3 years ago
You have decided to cash in all of the coins you have been saving for the summer. In total you have $7.20. You only have dimes a
muminat

Answer:

The number of quarters in total = 16 quarters

The number dimes = 32 dimes

Step-by-step explanation:

The given information are;

The total amount of money in held = $7.20

The denomination of the money held = Dimes and quarters

The number dimes = 2 × The number of quarters

Given that a dime = 10 cents = $0.1

A dollar = 25 cents = $0.25

Let the number of quarters in the sum of money = X

Therefore, we have;

X × $0.25 + 2 × X × $0.1 = $7.20

X × $0.25 + X × $0.2 = $7.20

X × $0.45 = $7.20

X = $7.20/$0.45 = 16

Therefore, the number of quarters = 16

The number of quarters in total = 16 quarters

The number dimes = 2 × The number of quarters = 2 × 16 = 32 dimes

The number dimes = 32 dimes.

8 0
3 years ago
If you bought a stock last year for a price of $60, and it has gone down 8% since then, how much is the stock worth now, to the
Rufina [12.5K]

Answer:

$55.2

Step-by-step explanation:

60*8=480

480/100=4.8

60-4.8=55.2

7 0
3 years ago
A= 1 + prt solve for r
notka56 [123]
A=1+prt\\\\A-1=prt\qquad|:pt\\\\\dfrac{A-1}{pt}=r\\\\\\\boxed{r=\dfrac{A-1}{pt},\qquad p,t\neq0}
8 0
3 years ago
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