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Ksivusya [100]
3 years ago
10

If an object is projected upward with an initial velocity of 126 ft per​ sec, its height h after t seconds is h= -16^2+126t. Fin

d the height of the object after 5 seconds
Mathematics
2 answers:
S_A_V [24]3 years ago
7 0

Answer:

230 ft  is the height of the object after 5 seconds

Step-by-step explanation:

As per the statement:

If an object is projected upward with an initial velocity of 126 ft per​ sec.

The height h after t seconds is given by:

h(t) = -16t^2+126t

We have to find the height of the object after 5 seconds.

At t = 5 seconds

h(5) = -16(5)^2+126(5)

⇒h(5) = -16 \cdot 25+630

⇒h(5) = -400+630

Simplify:

h(5) = 230 ft

Therefore, the  height of the object after 5 seconds is, 230 ft

Phoenix [80]3 years ago
3 0
All you would have to do is plug in 5 for t since that is the time; then you would see that the height of the object after 5 seconds is 886 ft. Hope this helped!
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Veseljchak [2.6K]

Answer:

55°

Step-by-step explanation:

180°-70°=110° (sum of angles on a straight line gives 180°

The size of each of the four remaining angles=110°/4 = 27.5°

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7 0
2 years ago
a certain stock started the day at $35 a share. By the end of the day the stock had increased by 20%.what is the new price of th
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Answer:

New price of the stock = $42

Step-by-step explanation:

Given

Price of stock at the start of the day = $35

Increased by 20% by the end of the day.

To find the new price of the stock which is the price of the stock at the end of the day.

Solution:

Price at start =$35

Increase Percent at the end = 20%

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8 0
3 years ago
The graph below is correct for the linear equation y=-3. <br><br> True<br> False
Oksana_A [137]

Answer:

False.

Step-by-step explanation:

The graph that is shown is correct for the equation x= -3. The graph for y= -3 would run vertically, not horizontally.

6 0
3 years ago
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What is the domain and range of the graph below in interval notation? If union is needed, use Capital U. If infinity is needed u
elena55 [62]

Answer:

DOMAIN: (-\infty,1]\cup(2,\infty)

RANGE: (-\infty,\infty)

Step-by-step explanation:

The domain of a graph is the span of x-values covered by the graph, while the range of a graph is the span of y-values covered by the graph.

DOMAIN:

From the graph, we can see that the x-values covers everything to the left of x=1. Then we stop and then continue beginning at x=2 all the way until positive infinity.

However, note that at x=1, the dot is a closed circle while at x=2, the dot is an open circle. Thus, we will include x=1 into our domain but not include x=2 into our domain.

So, our domain is all values greater than or less than 1, and all values greater than 2.

In interval notation, this is:

(-\infty,1]\cup(2,\infty)

We use brackets with the 1 because we include it in our domain and we use parentheses with the 2 since we do not.

RANGE:

Looking at the graph, it seems that all y-values are covered. The part of the graph on the left covers all y-values less than or equal to 3, while the part of the graph on the right covers all y-values greater than -1. Thus, all y-values are covered.

Our range is all real numbers.

In interval notation, this is:

(-\infty,\infty)

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3 years ago
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Answer:

Step-by-step explanation:

\frac{b}{-3}+4< 13

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