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
galina1969 [7]
3 years ago
10

PLEASE HELP ME

Mathematics
1 answer:
stiv31 [10]3 years ago
5 0
Since it's a right triangle you can use the Pythagorean theorem or Trig (Soh Cah Toa).

I'll just use the Pythagorean theorem : a² + b² = c²
a = 9
b = x
c = 18

9² + x² = 18²
81 + x² = 324
x² = 324 - 81
x² = 243
x = √(243)

factor 243 to find a perfect square

x = √(3*81)
x = 9√(3)<u />
You might be interested in
There are 768 beds in a hospital, each floor has 64beds, how many floors are there
Alja [10]

Answer:

There are 12 floors in a hospital.

Step-by-step explanation:\

Each floor has 64 beds, but the hospital has totally 768 beds

So, \frac{768}{64} = 12 (floors)

4 0
3 years ago
I need help please……..
Lemur [1.5K]

Answer:

A and D

explanation:

The other two answers looks like opinions

7 0
3 years ago
in a school gym, the ratio of the number of boys to the number of girls was 4:3 . after 160 boys left the gym, the ratio became
Annette [7]

Answer:

300 girls were there in the gym.

Step-by-step explanation:

Given:

The ratio of the number of boys to the number of girls was 4:3, after 160 boys left the gym, the ratio became 4:5.

Now, to find the number of girls in the gym.

The girls in the gym does not left, their quantity is same before and after.

So, we multiply the both ratios to make the girls ratio same:

4:3 × 5 = 20:15

4:5 × 3 = 12:15

Now, <em>we find the units of the ratio</em>.

<em>The ratio of boys dropped down by 160</em>:

20 - 12 = 8 units.

160 = 8 units

Now, dividing both sides by 8 we get:

20 = 1 unit

So, 1 unit = 20.

Now, girls = 15 units

So, 15 × 20 = 300.

Therefore, 300 girls were there in the gym.

3 0
3 years ago
Which sequence of transformations will produce similar but not congruent figures?
RoseWind [281]
A dilation would produce<span> a </span>similar figure. Therefore, the sequence of transformations that will produce a similar but not congruent figures would be the first and the third option. Figure TUVWX is dilated by a scale factor of 6 and then rotated 90° counterclockwise around the origin; and f<span>igure TUVWX is reflected across the x-axis and dilated by a scale factor of 7. Hope this answers your question.</span>
3 0
2 years ago
Please help me asap​
omeli [17]

Answer:

-.51, .1/2, .42, 11/20

3 0
2 years ago
Read 2 more answers
Other questions:
  • The larger of two numbers is 3 more than twice the smaller. if the twice the larger is decreased by 5 times the smaller the resu
    9·1 answer
  • 1. What is the length of line RS?
    6·1 answer
  • 64, 66, 41, 18, 81<br>Mean:<br>Mode:<br>Median:<br>Range:<br>​
    12·2 answers
  • Multiple w and 8.Then,add 5
    15·1 answer
  • Suppose a certain state university's college of business obtained the following results on the salaries of a recent graduating c
    11·1 answer
  • Solve a system of equation by elimination
    5·1 answer
  • The smaller triangle is dilated to create the larger triangle. The center of
    6·1 answer
  • You spin the spinner once.<br><br> What is P(greater than 6)?
    13·1 answer
  • A local hamburger shop sold a combined total of 575 hamburgers and cheeseburgers on Sunday. There were 75 fewer cheeseburgers so
    12·1 answer
  • Question 3 of 5<br> 764 =<br> O A. 16<br> OB. 4<br> O c. 2<br> O D. 8
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!