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
guapka [62]
3 years ago
14

Ali went backpacking over the 3-day Labor Day weekend. On Saturday she hiked

Mathematics
1 answer:
ANTONII [103]3 years ago
6 0
21 miles.............
You might be interested in
What is the volume of a cone with the given dimensions?<br> Diameter = 14 cm.; Height = 2 cm.
Helga [31]
Volume of a cone = (π.R²)(h/3)

Diameter = 14cm then R=7 cm

Height = h= 2cm

Hence V=*π.7²)(2/3) ==> 98π/3 or 102.625 cm³
4 0
3 years ago
PLEASSEEEEEE HELPPPPPP! WILL GIVE BRAINLIEST.
4vir4ik [10]

First replace x and y by 3 and 4.

(3*(x)+1)/(4*(y)^2)

((3*(3))+1)/(4*((4)^2)) = (9+1)/(4*16) = 10/64 = 5/32.

5/32 is your answer.

Please mark me as brainliest!

3 0
3 years ago
walnut grower estimates from past records that if 20 trees are planted per acre, then each tree will average 60 pounds of nuts p
laila [671]

Answer:

5 trees should be planted to maximize the yield per acre,

The maximum yield would be 1250

Step-by-step explanation:

Given,

The original number of trees per acre = 20,

Average pounds of nuts by a tree = 60,

Let x be the times of increment in number of trees,

So, the new number of trees planted per acre = 20 + x

∵ for each additional tree planted per acre, the average yield per tree drops 2 pounds,

So, the new number of pounds of nut = (60 - 2x)

Thus, the total yield per acre,

Y(x) = (20+x)(60-2x)

Differentiating with respect to t ( time ),

Y'(x) = (20+x)(-2) + 60 - 2x = -40 - 2x + 60 - 2x = 20 - 4x

Again differentiating with respect to t,

Y''(x) = -4

For maxima or minima,

Y'(x) = 0

⇒ 20 - 4x = 0

⇒ 20 = 4x

⇒ x = 5,

For x = 5, Y''(x) = negative,

Hence, Y(x) is maximum for x = 5,

And, maximum value of Y(x) = (20+5)(60 - 10) = 25(50) = 1250,

i.e. 5 trees should be planted to maximize the yield per acre,

and the maximum yield would be 1250 pounds

4 0
3 years ago
If y=(sec^-1x)^2, then show that x^2(x^2-1) d^2y/dx^2 + (2x^3 - x) dy/dx = 2
Arisa [49]

Step-by-step explanation:

Hope it helps you in your learning process.

8 0
3 years ago
National Income (NI) is the sum of the incomes that all individuals in an economy earn in the forms of wages,
Dennis_Churaev [7]

Answer:

\simeq 14.94  billion dollars

Step-by-step explanation:

During the period 1994 - 2004, the 'National Income' ,(NI) of Australia grew about 5.2% per year (measured in 2003 U. S, dollars).  In 1994 , the NI of Australia was $ 4 billion.

Now,

(2020 - 1994) = 26

Assuming this rate of growth continues, the NI of Australia in the year 2020 (in billion dollars) will be,

4 \times[\frac{(100 + 5.2)}{100}}]^{26}

=4 \times[\frac{105.2}{100}]^{26}

=\simeq 14.94  billion dollars (answer)

8 0
3 years ago
Other questions:
  • What is the measure of arc GH??
    10·1 answer
  • Jerry has 64 cupcakes. Jane has 5 more cupcakes. How many cupcakes does Jane and Jerry have together?
    15·1 answer
  • Speaker placement. a stereo receiver is in a corner of an 18​-ft by 24​-ft room. speaker wire will run under a​ rug, diagonally,
    9·1 answer
  • What triangle measure 47 68 and 65
    5·1 answer
  • Finding an Equation of a tangent Line in Exercise, find an equation of the tangent line to the graph of the function at the give
    9·1 answer
  • Help me please !!!!!!!!
    9·1 answer
  • It takes Kendra 27 minutes to run 3 miles. A)write a ratio to represent kendras running rate in minute per mile b) write kendras
    13·1 answer
  • In the figure below, what is m21 if the m23 = 70°? 3\2 41
    13·1 answer
  • Sovle a triangle when A=40°, C=70°, and a=20.​
    15·1 answer
  • WILL MARK BRAINLIEST TO THE FIRST PERSON
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!