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
horsena [70]
2 years ago
14

Karen is planting a tree. She wants to use two guy wires to stabilize the tree. If Karen places the guy wires 8 feet up the trun

k and 7 feet from the base, how much total wire will she need for both guy wires? Round your answer to the nearest tenth.
Mathematics
2 answers:
solniwko [45]2 years ago
8 0
15 feet of wire (I’m pretty sure?)
belka [17]2 years ago
5 0

Answer:

20 ft

Step-by-step explanation:

You might be interested in
If y varies inversely as x and y=24 when x=8, find y when x is 4
olga2289 [7]
Y would equal 12 if x were to equal 4. You can think of it as a proportion.
6 0
3 years ago
Find positive numbers x and y satisfying the equation xyequals12 such that the sum 4xplusy is as small as possible. Let S be the
WITCHER [35]

Answer:

The objective function in terms of one​ number, x is

S(x) = 4x + (12/x)

The values of x and y that minimum the sum are √3 and 4√3 respectively.

Step-by-step explanation:

Two positive numbers, x and y

x × y = 12

xy = 12

S(x,y) = 4x + y

We plan to minimize the sum subject to the constraint (xy = 12)

We can make y the subject of formula in the constraint equation

y = (12/x)

Substituting into the objective function,

S(x,y) = 4x + y

S(x) = 4x + (12/x)

We can then find the minimum.

At minimum point, (dS/dx) = 0 and (d²S/dx²) > 0

(dS/dx) = 4 - (12/x²) = 0

4 - (12/x²) = 0

(12/x²) = 4

4x² = 12

x = √3

y = 12/√3 = 4√3

To just check if this point is truly a minimum

(d²S/dx²) = (24/x³) = (8/√3) > 0 (minimum point)

4 0
2 years ago
Evaluate 4<br> M-n if m= -7 and n = 2.
gregori [183]

Answer:

-30

Step-by-step explanation:

I'm assuming the equation is 4m-n. If it is not please tell me.

If we know the values of m and n, we can just substitute inside the expression.

4(-7) - 2\\\\-28 - 2\\\\-30

Hope this helped!

7 0
3 years ago
Which of the following is the correct answer after multiplying both sides of the inequality -x &gt; -3 by -1?
Drupady [299]

Answer:

x < 3

Step-by-step explanation:

When you multipy an inequality by a negative, remember to switch the inequality sign!

-x > -3

(-x)(-1) > (-3)(-1)

x < 3

please give thanks and hit the heart button :)

7 0
3 years ago
Read 2 more answers
A student incorrectly determined that the length of DE is 29 cm explaining that 12-7 = 5 and 36-7 = 29 explain what mistake the
FinnZ [79.3K]

Answer:

The length of the hypotenuse ≈ 39.7 cm

Explanation:

Since the given triangle is a right-angled triangle, this means that we can apply the Pythagorean theorem.

The equation for Pythagorean calculation is:

(hypotenuse)² = (first leg)² + (second leg)²

In the given, we have:

first leg = 30 cm

second leg = 26 cm

Substitute with the givens in the above equation to get the hypotenuse as follows:

(hypotenuse)² = (30)² + (26)²

(hypotenuse)² = 1576

This means that:

either hypotenuse = √1576 = 39.69 ≈ 39.7 cm ..........> accepted

or hypotenuse = -√1576 = -39.69 ......> rejected as length can't be negative

Hope this helps :)

6 0
1 year ago
Other questions:
  • If a storm window has an area of 640 square inches, what is the equation to find the dimensions when the window is 20 inches hig
    8·1 answer
  • What is $58 bill, 20% tip to the nearst cent
    15·1 answer
  • Your total FICA contribution which includes Social Security and Medicare is 15.3% of your salary. 12.4% of your FICA contributio
    13·1 answer
  • Solve for x. <br><br> −1/3x≤−6
    12·1 answer
  • Which of the following statements must be true about a square?
    6·1 answer
  • What is a pint of a Gallon
    8·2 answers
  • What us 36 divided by 1/4 i'm stuck on this
    11·2 answers
  • How do you write half of a number decreased by 17
    9·1 answer
  • Find the slope between the two points: <br><br> (1, -19) and (-2, -7)
    6·1 answer
  • Entercept word problems
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!