1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrews [41]
3 years ago
9

The function h(t) = –16t2 + 28t + 500 represents the height of a rock t seconds after it is propelled by a slingshot.

Mathematics
1 answer:
posledela3 years ago
4 0
H(3.2) represents the height of a rock 3.2 seconds after it is propelled by a slingshot.
You might be interested in
Graph the function f(x) = - squared x + 2
MariettaO [177]

One of the ways to graph this is to use plug in a few x-values and get an idea of the shape. Since the x values keep getting squared, there is an exponential increase on either side of the y-axis. You can see this by plugging in a few values:

When

x=0,f(x)=0

x=1,f(x)=1^2=1

x=2,f(x)=2^2=4

x=3,f(x)=3^2=9

x=4,f(x)=4^2=16

The same holds true for negative x-values to the left of the y-axis since a negative value squared is positive. For example,

x=−1,f(x)=(−1)2=1*−1=1

x=2,f(x)=(−2)2=−2*−2=4

The graph of f(x)=x^2 is called a "Parabola." It looks like this:

5 0
3 years ago
Two angles are vertical. One angle is by degrees and the other angle
Liono4ka [1.6K]

Answer:

Supplementary angles are two angles whose measures add up to 180 degrees. ... Supplementary angles are two angles whose measures add up to 180° . The two angles of a linear pair , like ∠1 and ∠2 in the figure below, are ... If the measure of the angle is twice the measure of the other, find the measure of each angle.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A science student wants to study how fast an ant walks which quantity makes the most sense for his study
klasskru [66]

Inches per second is a convenient unit for ant speed.


Second choice.



4 0
4 years ago
What is a rational number
liraira [26]

Answer:

A Rational Number can be made by dividing two integers.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A rectangular storage container with an open top is to have a volume of 10 m3 . then length of its base is twice the width. mate
katrin [286]

Answer:

The cost of materials for the cheapest such container is $163.54.

Step-by-step explanation:

A rectangular storage container with an open top is to have a volume of 10 m³.

The volume of the rectangle is

\text{Volume} =\text{Length} \times \text{Width} \times \text{Height}

Length of its base is twice the width.

Let Width be 'w'.

Length is l=2w.

Height be 'h'.

10 =2w\times w\times h

10=2w^2h

The height in terms of width is represented as,

h=\frac{10}{2w^2}

h=\frac{5}{w^2}

According to question,

The cost is 10 times the area of the base and 6 times the total area of the sides.

i.e. Cost is given by,

C=10(L\times W)+6(2\times L\times H+2\times W\times H)

C=10(2w\times w)+6(2\times 2w\times \frac{5}{w^2}+2\times w\times \frac{5}{w^2})

C=20w^2+\frac{120}{w}+\frac{60}{w}

C(w)=20w^2+\frac{180}{w}

To get the minimum value,

Differentiate the cost w.r.t 'w',

C'(w)=20\frac{d(w^2)}{dw}+180\frac{d(w^{-1})}{dw}

C'(w)=20\times 2w-180 w^{-2}

C'(w)=40w-\frac{180}{w^2}

To find critical points put derivate =0,

40w-\frac{180}{w^2}=0

40w=\frac{180}{w^2}

w^3=\frac{180}{40}

w=\sqrt[3]{4.5}

w=1.65

We find the second derivative to minimize,

C''(w)=40\frac{d(w)}{dw}-180\frac{d(w^{-2})}{dw}

C''(w)=40+360(w^{-3})

C''(w)>0

As C''(w)>0 it is the minimum cost.

The cost is minimum at w=1.65.

Substitute the values in the cost function,

C(1.65)=20(1.65)^2+\frac{180}{1.65}

C(1.65)=54.45+109.09

C(1.65)=163.54

Therefore, the cost of materials for the cheapest such container is $163.54.

7 0
3 years ago
Other questions:
  • Ricardo reflected the triangle across the y axis. What is the new triangle?
    11·2 answers
  • -19/2 divided by 38/5
    11·1 answer
  • For every gallon of gas used, 4 ounces of oil should be added. How much gas is needed if 12 ounces of oil are used
    9·1 answer
  • Whats 6 3/5 divided by 3/4
    14·1 answer
  • Product of 15 and 20
    5·2 answers
  • Jamal drew the function below. Which explains whether or not his function is linear?
    12·2 answers
  • A manufacturing company uses crates to transport boxes of supplies. Two crates can hold 250 boxes. If the company needs to ship
    14·2 answers
  • A hole, 5x3, is cut out of the center of a sheet metal 9" square. The area of the remaining metal is
    14·1 answer
  • HELPPP PLSSS 8TH GRADE MATH!!!!!
    6·2 answers
  • Expand.<br> Your answer should be a polynomial in standard form.<br> (-p? - 4p - 3)(p2 + 2)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!