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
Vlad [161]
3 years ago
15

Ur so worth it...ok now enough about u...help plz

Mathematics
1 answer:
sasho [114]3 years ago
4 0

Answer:

20. 13 cm

21. 12 cm

Step-by-step explanation:

20. isosceles means two sides are the same length, so you take the ten off the perimeter to get 26 remaining cm (36 -10) and you then divide that by two to get both sides of 13 cm (26 / 2)

21. because you know that if you split the triangle down the middle you get a right triangle and you can use a^2+b^2=c^2 to find the height, so we take the one side of 13 cm and half of the third side, which is 5, and you can find your answer (a^2 + 5^2 = 13^2   ---> a^2 + 25 = 169 ---> a^2 = 144 ---> a = 12)

You might be interested in
Calculate the mass of a liquid with a density of .7892 g/mL and a volume of 121.0 mL.
nataly862011 [7]

Answer:

95.49 g

Step-by-step explanation:

D = m/v

Looking for mass so isolate m to form equation format

D × V = m

Plug in numbers

.7892g/mL × 121.0 mL = 95.4932 g

Only g and not g/mL because the mL cancels each other out. It's easier to see if you rewrite it on paper.

Round to sig figs

Both original numbers hold 4 sig figs

95.49 g

5 0
3 years ago
Help with this please!!
Nostrana [21]

Answer:

C.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
sean used 41 feet of string to fly his kite. his kite was 9 feet in front of him. how high was his kite?
Luden [163]

Answer:

40 feet

Step-by-step explanation:

7 0
2 years ago
When Fritz drives to work his trip takes 35 minutes, but when he takes the train it takes 15 minutes. Find the distance Fritz tr
inn [45]

Answer:

35 miles

Step-by-step explanation:

Let's say Fritz travels at x miles per hour via train and y miles per hour via car.

(speed of car) + 80 miles per hour = speed of train

y + 80 = x

Speed * time = distance

Speed of train * time of train = distance = speed of car * time of car

x * 15 minutes = y * 35 minutes

convert minutes to hours since miles per hour is in terms of hours

60 minutes = 1 hour

15 minutes = ? hours

multiply 15 minutes by 1 hour/60 minutes. since 60 minutes = 1 hour, we can divide both sides by 60 minutes to get 1 hour/60 minutes = 1. we can always multiply by 1, so we do that here. note that the minutes are in the denominator so the 15 minutes cross out with the 60 minutes, leaving us with only hours as our unit.

15 minutes = 15 minutes * 1 = 15 minutes * 1 hour/60 minutes = 15/60 hours = 3/12 hours

similarly, 35 minutes * 1 hour/60 minutes = 35/60 hours = 7/12 hours

x * 15 minutes = y * 35 minutes

x * 3/12 hours = y * 7/12 hours

plug y+80 in for x

(y+80) * 3/12 hours = y * 7/12 hours

(3/12) * y + 20 = (7/12) * y

subtract (3/12) * y from both sides to isolate the variable (y) and its coefficient

20 = (4/12) * y

multiply both sides by 12/4 (the inverse of the coefficient) to get rid of the coefficient

20*12/4 = y = 60

y = 60 miles per hour

x = y + 80 = 140 miles per hour

distance = x * 3/12 hours = 140 miles/hour * 3/12 hours= 35 miles

8 0
1 year ago
How to find the range of a logromithic function?
Ronch [10]
Since the logarithmic function is the inverse of the exponential function, the domain of the logarithmic function is the range of the exponential function and that works the same both ways.
5 0
2 years ago
Other questions:
  • What number is needed to complete the pattern next 59 51 44 38 33 29 22 next
    11·1 answer
  • Please help me with all these questions . I really appreciate it but if you don't how to do it please comment don't answer the q
    7·2 answers
  • What is the domain of the function y=2 sqrt x-5?
    8·1 answer
  • Does any one know the answer please​
    14·1 answer
  • A mayor wants to determine if the people in his city think that he is doing a good job.
    9·2 answers
  • You have just bought a new television and it has an aspect ratio of 16:9. The screen on the television is 65 inches. What is the
    7·2 answers
  • Find the solution of the system of equations.<br>6x + 8y = -8<br>x + 4y = 4<br>( , )​
    5·1 answer
  • the cost (in dollars) of making n birthday cakes is represented by C= 24n + 35. How many birthday cakes are made when the cost i
    12·2 answers
  • A. 67%<br> b. 33%<br> c. 40%<br> d. 25%
    12·1 answer
  • What is the difference between a factor of a number and a multiple of a number? use the number 25 has an example
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!