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
babunello [35]
3 years ago
12

x,y, and z to the nearest tenth .(hint: use altitude and leg rules) PLEASE HELP FAST !!! please solve and show steps

Mathematics
1 answer:
madreJ [45]3 years ago
7 0

Use the Pythagorean theorem to find z:

z = √(6^2 + 9^2)

z= √(36 + 81)

z = √117

z = 3√13 = 10.8

Use leg rule to find x:

x/6 = 6/9

Cross multiply:

9x = 36

Divide both sides by 9:

x = 36/9

x = 4

Use Pythagorean theorem to find y:

y = √(6^2 + 4^2)

y= √(36 + 16)

y = √52

y = 2√13 = 7.2

You might be interested in
How is a line of best fit drawn? Describe how you decide where to put it.
Gnoma [55]

Answer:

A line of best fit is a straight line going through a trend on a scatter plot.

Step-by-step explanation:

A well drawn line of best fit is just a line going straight through the trend of dots to approximate an exact trend from a non-exact plot, so just draw a line that stays in the middle of the dots and you should do great.

Hope this helped!

3 0
2 years ago
Which of the following could be a solution to a system of linear equations including the line graphed below?
Anna [14]

Answer:

B

Step-by-step explanation:

using quadratic equation

3 0
3 years ago
An open box is to be made out of a 6-inch by 14-inch piece of cardboard by cutting out squares of equal size from the four corne
lawyer [7]

Answer:

The dimensions of the resulting box that has the largest volume is 1.3 inches x 1.3 inches

Step-by-step explanation:

Card board size is L= 14 inches and

W = 6 inches

Let x be the size of equal squares cut from 4 corners and bent into a box whose size is now;

L = 14 − 2x , W = 6 −2x and h = x inches.

Volume of the box is given as;

V = (14 −2x)(6−2x)x

V =(4x² − 40x + 84)x

= 4x³ − 40x² + 84x.

Now, for the maximum value,

dV/dx =0

Thus,

dv/dx = 12x² - 80x + 84 = 0

Using quadratic formula

x = [-(-80) ± √(-80²) - 4(12 x 84)]/(2 x 12)

x = [80 ± √(6400 - 4032)]/24

x = (80 + 48.66)/24 or (80-48.66)/24

x = 5.36 or 1.31

Looking at the two values, 1.31 would be more appropriate because if we use 5.36,we will get a negative value of the width (W).

Thus, x = 1.31 inches

Let us use the Second Derivative Test to verify that V has a local maximum at x = 1.31.

Thus;

d²v/dx² = 24x - 80 = 24(1.31) - 80 = -48.56

This is less than 0 and therefore, the volume of the box is maximized when a 1.31 inch by 1.3 inch square is cut from the corners of the cardboard sheet.

3 0
3 years ago
What is 2/9 turned into a decimal?
Alex787 [66]
2/9 is equals 0.22222222222 Hope it helped you
4 0
3 years ago
Read 2 more answers
The product of two numbers is 50 and their difference is 5. What are the two numbers?
lyudmila [28]
27.5 and 22.5 are the two numbers
6 0
3 years ago
Other questions:
  • Which number goes in the box to make this a true number sentence? 7 × (3 + 9) = 21 +
    12·2 answers
  • ΔABC is similar to ΔDEF. The ratio of the perimeter of ΔABC to the perimeter of ΔDEF is 1 : 5. If the longest side of ΔDEF measu
    12·1 answer
  • A sign says the speed limit is 45 miles per hour. Which inequality
    5·1 answer
  • Suppose there is a 13.9 % probability that a randomly selected person aged 40 years or older is a jogger. In​ addition, there is
    8·1 answer
  • D=(ry + r) t<br> Solve for r1
    12·2 answers
  • Describe a way to transform each graph so that it goes through the labeled points.
    9·1 answer
  • The scatter plot below shows the average rent (in dollars per month) for a 1-bedroom apartment in New York City each year betwee
    13·1 answer
  • Use the following data obtained from ages of the last six U. S. Presidents at the time of their inauguration to answer the follo
    6·1 answer
  • A rectangle has a length of 2y inches and a width of y - 4 inches. If the perimeter of the rectangle is 22 inches, what is y? Wh
    8·1 answer
  • The radius of a circle is 2 yards. What is the circle's area? r=2 yd Use 3.14 for ​.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!