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
OlgaM077 [116]
3 years ago
11

What is the length of AC?

Mathematics
1 answer:
EastWind [94]3 years ago
8 0

Answer:

Step-by-step explanation:

the triangles are proportional

9/81=1/3

140-x/x=1/3

3(140-x)=x

420-3x=x

4x=420

x=420/4 = 105

You might be interested in
Find the linear approximation of the function g(x) = 5 1 + x at a = 0. g(x) ≈ use it to approximate the numbers 5 0.95 and 5 1.1
34kurt

Differentiating the function

... g(x) = 5^(1+x)

we get

... g'(x) = ln(5)·5^(1+x)

Then the linear approximation near x=0 is

... y = g'(0)(x - 0) + g(0)

... y = 5·ln(5)·x + 5

With numbers filled in, this is

... y ≈ 8.047x + 5 . . . . . linear approximation to g(x)

Using this to find approximate values for 5^0.95 and 5^1.1, we can fill in x=-0.05 and x=0.1 to get

... 5^0.95 ≈ 8.047·(-0.05) +5 ≈ 4.598 . . . . approximation to 5^0.95

... 5^1.1 ≈ 8.047·0.1 +5 ≈ 5.805 . . . . approximation to 5^1.1

3 0
3 years ago
Choose the correct simplification of the expression 3b/a-2
Goshia [24]
To solving with their equation and expression to step by step.

3b/a-2

= -2a+3b/a


4 0
2 years ago
Read 2 more answers
What is the slope of line n?
svet-max [94.6K]

Answer:

2

Step-by-step explanation:

2 - 1            1

------   =     -----     =    2

1 - 1/2         .5

5 0
2 years ago
Which shows the correct simplification of product of powers?
Brums [2.3K]
The power symbols are missing.

I can infere that the product intended to simplify is (7^8) * (7^-4)., because that permits you to use the rule of the product of powers with the same base.

That rule is that the product of two powers with the same base is the base raised to the sum of the powers is:

(A^m) * (A^n) = A^ (m+n)

=>(7^8) * (7^-4) =  7^ [8 + (- 4) ] = 7^ [8 - 4] = 7^4, which is the option 3 if the powers are placed correctly.
5 1
3 years ago
Read 2 more answers
The sum of two numbers is 83 if one of the number is 7 more than the other find the two numbers?​
viva [34]

Answer:

48.5 and 34.5

Step-by-step explanation:

83 divided by 2 and then subtract 7

3 0
3 years ago
Read 2 more answers
Other questions:
  • Creating box plots
    15·1 answer
  • What number is missing from the number pattern? 1,2,5,10,__,26,37​
    5·1 answer
  • There are 300 milligrams how many grams can we get with that much?
    5·2 answers
  • Simplify <br><br> (8x^4)(4x^3)/7x^2
    10·1 answer
  • Solve by factoring or finding square roots.
    7·1 answer
  • 10x-7x=12 how to solve this
    15·2 answers
  • 3 pineapples, 2 cabbages and 6 bananas cost a total of $27.
    15·1 answer
  • Question 14 what is 2÷1 /7 equal to conversion
    12·2 answers
  • · y = -7x-2<br> Y+ 3 = -7x+1<br> (2,3)<br> O<br> no solution<br> an infinite number of solutions
    13·2 answers
  • What is the factored form of the following expressions?<br><br> x2 – 10xy + 24y2
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!