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
german
3 years ago
9

1-3 and I need to show my work

Mathematics
1 answer:
love history [14]3 years ago
4 0
All of these questions require you to work with Pythagoras' Theorem: c^2 = a^2 + b^2, where c is the hypotenuse and a and b are two other side lengths

1. c^2 = 5^2 + 12^2
c^2 = 25 + 144
c^2 = 169
c = 13 in.

2. 60^2 = 51^2 + σ^2
3600 = 2601 + σ^2
σ^2 = 999
σ = 31.6 yd

3. 18^2 = b^2 + 8^2
324 = b^2 + 64
b^2 = 260
b = 16.1 m
You might be interested in
A student found the surface area of this pyramid. Surface area = (12)(6) + 1 2 (12)(8) + 1 2 (6)(9.5) = 72 + 48 + 28.5 = 148.5cm
Virty [35]

Answer:

The answer is, The student added only three of the five faces.

Step-by-step explanation:

Hoped it help Have a great day :)

5 0
3 years ago
PLEASE HELP ME I AM BEING TIMED, I WILL MARK THE BRAINLIEST TO WHOEVER GETS THIS RIGHT, WITH AN EXTRA 10 POINTS!
tamaranim1 [39]

Answer:

a)9

Step-by-step explanation:

i dont know what b is sorry

5 0
3 years ago
What fraction is equivalent to 0.67?<br> 6/99 <br> 67/100<br> 67/99<br> 7/100
Vikentia [17]

Answer:

<em><u>\frac{67}{100}</u></em>

5 0
4 years ago
Read 2 more answers
If m∠EBD = 36 °and m∠DBC = 108 ° , find m∠EBC
NARA [144]

this is the answer of this question you have send If m∠EBD = 36 °and m∠DBC = 108 ° , find m∠EBC

8 0
4 years ago
How do u write a expression
zhuklara [117]

Answer:

<h2><u>it depends on what expression u want </u></h2>

Step-by-step explanation:

An example of a mathematical expression with a variable is 2x + 3. All variables must have a coefficient, a number that is multiplied by the variable. In the expression 2x + 3, the coefficient of x is the number 2, and it means 2 times x plus 3.

3 0
3 years ago
Read 2 more answers
Other questions:
  • DG, EG, and FG are perpendicular bisectors of the sides of △ ABC . DG=5 centimeters and BD=12 centimeters.
    7·2 answers
  • Please help m e : " )
    11·2 answers
  • Jalisa caught one fish that had a mass of 1.78 kg and a second fish that had a mass of 1.87 kg.what is the total weight of the t
    9·2 answers
  • What percent of 76 is 6
    15·1 answer
  • A book store is having a 30 perscent off sale. Diary of the wimpy kid books are now 6.30 dollars each what was the original pric
    6·1 answer
  • I need to know whether its <br> A) 54<br> B)88<br> C)68<br> D)34
    11·2 answers
  • What is 1294 divided by 868
    15·2 answers
  • What is the square root of 3567
    14·1 answer
  • What is the value of x2y, when x = 10 and y = 1?<br><br> 1/10<br><br> 1/5<br><br> 5<br><br> 10
    6·2 answers
  • What is nine minus one third?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!