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
Ierofanga [76]
3 years ago
9

19. find the value of z. PLEASEEEEE HELLPPPPPPP

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
5 0

Answer:

6sqrt(2)

Step-by-step explanation:

You need to use the Right Triangle Altitude Theorem.

There are two parts to this theorem.

Here is the part you need for this problem.

If the altitude is drawn to the hypotenuse of a right triangle, the length of each leg of the right triangle is the geometric mean of the segment of the hypotenuse adjacent to the leg and the entire hypotenuse.

In this case, you end up with this proportion:

Length of leg: z

Length of entire hypotenuse = 8 + 1 = 9

Length of segment of hypotenuse adjacent to leg of interest: 8

8/z = z/9

z^2 = 72

z = sqrt(72)

z = sqrt(36 * 2)

z = 6sqrt(2)

You might be interested in
Which equation is NOT true? A. 55 + 27 + 45 =100 + 27 C. 14(126)= 14(100) + 14(26) B. 5⦁ 7⦁ 2 = 2⦁7 D. 31(152) = 30(150) + 1(2)
stiv31 [10]

Answer:

5⦁ 7⦁ 2 = 2⦁7 is not true

Step-by-step explanation:

70 ≠ 14

8 0
4 years ago
What is f(x) sometimes called ​
Oksanka [162]

Answer:

Y intercept

Step-by-step explanation:

:) 20 characters long

6 0
3 years ago
Read 2 more answers
Hi I rlly could use some help with this! I'm not the best at math and I'm rlly struggling with this assignment its a couple ques
snow_lady [41]

1. Let <em>y</em> represent the amount of money earned, and <em>x</em> the number of cars they wash. Then

<em>y</em> = 5<em>x</em>

Why? Each car wash costs $5. So no car washes means no earnings; 1 car wash earns $5; 2 washes earn $10; 3 washes earn $15, and so on, so that <em>x</em> car washes generate $5<em>x</em>.

2. No matter how many cars they end up washing, they will have spent $75 to set up the operation, so you subtract 75 from the equation is part (1).

3. Taking into account the setup cost of $75, the profit they make is given by

<em>y</em> = 5<em>x</em> - 75

4. When <em>x</em> = 0, meaning no cars get washed, the profit is -$75, meaning the team loses $75.

5. Set the profit function equal to 0 and solve for <em>x</em> :

5<em>x</em> - 75 = 0

5<em>x</em> = 75

<em>x</em> = 75/5

<em>x</em> = 15

So the team has to wash at least 15 cars to break even.

5 0
3 years ago
Read 2 more answers
How many arrangements of the letters in the word TRANCE are there if the vowels must always be together?
Dmitriy789 [7]

The vowels will appear as either EA or AE.

Number of arrangements 2 * 5! = 2 * 120

= 240 answer

7 0
3 years ago
Within 11 years, the age of Peter will be half the square of the age he was 13 years ago. Calculate the current age of Peter. Re
OLga [1]

Answer:

21

ctto JBarnum

Step-by-step explanation:

P+11=(1/2)(P-13)^2

P+11=(1/2)(P^2-26p+169)

2(P+11)=(1/2)(2)(P^2-26p+169)

2P+22=P^2-26p+169

0=P^2-28p+147      ( -7 and -21)

(P-7)(P-21)=0

P=7,21                     (cant be 7 as 13 years from 7 is negative so peter is 21)

checking:

21+11=32

32=(1/2)(21-13)^2

32=(1/2)(8)^2

32=(1/2)64

32=32

correct

4 0
3 years ago
Other questions:
  • Evaluate the expression when x = –8.
    14·2 answers
  • What's the answer?????
    5·1 answer
  • What is a composite number
    7·2 answers
  • Could You please solve this show your work as well. Thanks!
    13·1 answer
  • What’s a possible answer for this question?
    6·1 answer
  • Please help! A hat has the following marbles in it: 5 gray, 3 red, 6 white, 2 yellow and 4 green.
    12·1 answer
  • Help with this please!
    14·2 answers
  • Suppose you buy a q.25 pound package of ham at 5.20 per pound
    9·1 answer
  • in the diagram below the segment AD is parallel to EG . The measure of angle BFC is 71 degrees and the measure of angle FBC is 3
    14·1 answer
  • Multiply (Make sure to show work on a separate sheet of paper)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!