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
statuscvo [17]
2 years ago
12

Find the missing length indicated.

Mathematics
1 answer:
lyudmila [28]2 years ago
3 0

Answer: 60

Step-by-step explanation:

If the entire blue length is 100 and one of the parts of that is 64, the other part is 36.

So by the geometric mean theorem, letting the length of the dotted altitude be y,

\frac{64}{y}=\frac{y}{36}\\y^{2}=64 * 36 =2304\\y=48

So if y=48, by the Pythagoreanx=\sqrt{48^2 + 36^2}=60 theorem,

You might be interested in
I have no idea what the answers are
lara [203]

Hello from MrBillDoesMath!

Answer:

Top line: y = (2/3)x + 2

Bottom line:  y = (2/3)x  -1

Discussion:

The graph provided is hard to read but I did the best I could.

The top line appears to pass through the points (0,2) and (-3,0)

For this line

m =  change y /change x = (0-2)/(-3-0) = -2/-3 = +2/3. So

y = mx + b => y = (2/3) x+ b.  As the line passes through (0,2) set x = 0, y= 2 in y = (2/3)x + b =>  

2 = (2/3) 0 + b   => b = 2

Therefore    y = (2/3)x + 2

The bottom line appears to pass through the points (0,-1) and (3,1)

For this line

m =  change y /change x = (1-(-1)) /(3-0) = +2/-3. So

y = mx + b => y = (2/3) x+ b.  As the line passes through (0,-1) set x = 0, y= -1  in y = (2/3)x + b =>  

-1  = (2/3) 0 + b   => b = -1

Therefore    y = (2/3)x + -1

Thank you,

MrB

5 0
3 years ago
Consider the set of differences, denoted with d, between two dependent sets: 84, 85, 83, 63, 61, 100, 98. Find the sample standa
sveta [45]

Answer:

The sample standard deviation is 15.3.

Step-by-step explanation:

Given data items,

84, 85, 83, 63, 61, 100, 98,

Number of data items, N = 7,

Let x represents the data item,

Mean of the data points,

\bar{x}=\frac{84+85+83+63+61+100+98}{7}

=82

Hence, sample standard deviation would be,

\sigma= \sqrt{\frac{1}{N-1}\sum_{i=1}^{N} (x_i-\bar{x})^2}

=\sqrt{\frac{1}{6}\sum_{i=1}^{7} (x_i-82)^2}

=\sqrt{\frac{1}{6}\times 1396}

=\sqrt{232.666666667}

=15.2534149182

\approx 15.3

4 0
2 years ago
<img src="https://tex.z-dn.net/?f=y%3Dmx%2Bb%20for%20b" id="TexFormula1" title="y=mx+b for b" alt="y=mx+b for b" align="absmiddl
Gemiola [76]
Minus mx from both sides
y-mx=b
b=y-mx
7 0
3 years ago
(7 + 3) + 2 = 2 + (7 + 3)
maksim [4K]

Answer:

243324

Step-by-step explanation:

wow lots of numbers

7 0
3 years ago
Which statements are true regarding the rotational symmetry of the shape of a cross? Select three options.
Inga [223]

Answer:

The correct options are;

1) The shape maps unto itself after a rotation of 270 degrees

2) The smallest angle of rotational symmetry is 90 degrees

3) The shape maps unto itself after a rotation of 180 degrees

Step-by-step explanation:

We note that the shape of a cross which consists of two equal members (segments) bisecting each other at right angles such that when a member is placed vertically upright, the other member will be horizontal, therefore we have;

After rotation by 90 degrees, the vertical member will become horizontal and vice versa

After rotation by 180 degrees, the vertical member will become horizontal and vice versa again

Similarly, after rotation by 270  degrees, the once vertical member will become horizontal and the horizontal member will become vertical

6 0
3 years ago
Other questions:
  • An initial population of 12 earthworms increases by 4% each year. If the function f(x) = abx models this situation, which functi
    5·1 answer
  • Divide.Yes Rectangular models to record the partial quotient for
    11·1 answer
  • 1 2 3 4 5 6 7 8 9 10 TIME REMAINING 52:51 Use the data set to determine which statements are correct. Check all that apply. 35,
    7·1 answer
  • Ellen thinks that if a line has no slope, then it never touches the y-axis. Which line proves that her statement is incorrect?
    14·2 answers
  • Two campers leave their campsite at point A to go on a hike. Camper one heads east for 3 miles, then heads north 3 miles to poin
    11·2 answers
  • Find the median 61 61 62 64 66 69 69 70 72 73 74 78
    6·1 answer
  • An airplane traveled 700 kilometers in two hours during a trip. What was the average speed of the plane during the trip?
    15·1 answer
  • In 2017, the price of gas in a certain state changed from $2.24 to $2.56. Calculate the percent of change increase in the price
    11·2 answers
  • What is the surface area?<br> 5 yd<br> 6 yd<br> 5 yd<br> 5 yd<br> 4 yd<br><br> square yards
    9·1 answer
  • What is the best approximation of the value of a? 2. 4 cm 2. 7 cm 3. 0 cm 3. 3 cm.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!