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saw5 [17]
3 years ago
10

Help me resolve it, pls

Mathematics
1 answer:
amm18123 years ago
3 0

The function h(t) = -16t² + 72t will equal zero when the ball hits the ground:

-16t² + 72t = 0. Solving for the time, t, we factor -16t² + 72t : 16t (-t + 4.5) = 0.

This results in t = 0 and t = 4.5 sec. The ball hits the ground after 4.5 sec.

Problem 12.

Starting with A:(-5,3): Reflecting A over the y-axis results in B: (5,3). Translating B 3 units to the right results in C: (8,3). Finally, translating C down by 4 units results in D: (8,-1) (answer).

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PLEASE HELP!<br><br> look at picture 20 points!
weqwewe [10]

Answer:

\dfrac{2^3•5^2}{2^5•3•5^4}

=\dfrac{1}{2^2•3•5^2}

Fourth option is the right answer.

4 0
3 years ago
Read 2 more answers
Ben claims that the points (2. 4), (4, 8) and (8, 12) tie on a line. Show that Ben is incorrect.
NeX [460]
Find the slope(s) twice, first the slope of the line connecting (2,4) and (4,8) and then the slope of the line connecting (2,4) and (8,12).  If you get different slopes, then it'd be safe for you to conclude that the points do not lie on the same line.

7 0
3 years ago
What is the simplified expression
Nady [450]

Answer:

7y - 4x

Step-by-step explanation:

Given

- 3(2x - y) + 2y + 2(x + y) ← distribute both parenthesis

= - 6x + 3y + 2y + 2x + 2y ← collect like terms

= - 4x + 7y

= 7y - 4x

4 0
2 years ago
Tyrell bought a house for $186,500. He has a 30 year mortgage with a fixed rate of 6.5%. Tyrell's monthly payments
Rashid [163]

Answer:

b. 18,650 should be the correct answer

Step-by-step explanation:

6 0
3 years ago
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The width of a rectangle is (x+1) and the length is (x-6). What is the length and width of the rectangle if the area is 30 squar
jolli1 [7]

Answer:

The length of the rectangle (l) = 3 feet

The width of the rectangle (W) =  10 feet

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given that the width of the rectangle  = (x+1) feet</em>

<em>Given that the length of the rectangle = ( x-6) feet</em>

<em>The area of the rectangle = 30 square feet</em>

<u><em>Step(ii):-</em></u>

We know that the area of the rectangle

                = length ×width

    30   = ( x+1)(x-6)

    30   = x² - 6x + x -6

⇒ x² - 5 x - 6 = 30

⇒ x² - 5 x - 6 - 30 =0

⇒ x² - 5 x - 36 =0

 x² - 9 x +4x - 36 =0

   x (x-9) +4 ( x-9) =0

   ( x+4 ) ( x-9) =0

     ( x+4 ) =0 and  ( x-9) =0

     x =-4 and x =9

<u><em>Step(iii):-</em></u>

we have to choose x =9

     The length of the rectangle (l) =  x-6 = 9-6 =3

      The width of the rectangle (W) =  x+1 =  9 +1 = 10

<u><em>Final answer:-</em></u>

The length of the rectangle (l) = 3 feet

The width of the rectangle (W) =  10 feet

5 0
2 years ago
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