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
Shtirlitz [24]
3 years ago
7

In the diagram below , what is the value of a?

Mathematics
1 answer:
ipn [44]3 years ago
5 0

Step-by-step explanation:

solution

let,

AB = 9

AC = 9 + 3a - 6

AD = 12

AE = 12 + 20

now

AB/AD = AC/AE

or, 9/12 = 3 + 3a / 22

by cross multiply

or, 9×22 = 12×(3 + 3a)

or, 198 = 36 + 36a

or, (198 - 36)/36 = a

or, 4.5 = a

You might be interested in
Let f(x) = 8x3 + 16x2 − 15 and g(x) = 2x + 1. Find f of x over g of x
vladimir1956 [14]

\dfrac{f(x)}{g(x)}=\dfrac{8x^3+16x^2-15}{2x+1}

4 0
3 years ago
Matthew is 3 times as old as jenny. in 7 years, he will be twice as old as she will be then. how old is each now? Explain how to
Nataliya [291]

Let m and j be the current ages of Matthew and Jenny, respectively.

Now, Matthew is 3 times as old as Jenny, so the variables are in the following relation:

m=3j

In 7 years, both of them will be 7 years older, i.e. their ages will be m+7 and j+7, and Matthew will be twice as old:

m+7=2(j+7)

Now, remembering that m=3j, we can rewrite the second equation as

3j+7=2j+14 \iff j = 7

So, Jenny is 7 and Matthew is 21 (he's 3 times older).

In fact, in 7 years, they will be 14 and 28, and Matthew will be twice as old.

7 0
2 years ago
First two two terms of the given number sequence 3n + 1 are...​
PtichkaEL [24]

Answer:

the sequence begins as {4, 7, ... }

Step-by-step explanation:

a(n) = 3n + 1

The first term is a(1) = 3(1) + 1 = 4, and

the second term is a(s) = 3(2) + 1 = 7

So the sequence begins as {4, 7, ... }

5 0
2 years ago
I need help on this test. Will give Brainliest to whoever answers first! Pt. 6
Yuri [45]
I think the answer to 14 is J
6 0
3 years ago
What is the equivalent expression
Citrus2011 [14]

Answer:

H. 6x^2 + 7x + 49

Step-by-step explanation:

= 3x^2 + 14 - 7x + 6 + 29 + 3x^2 + 5x + 9x

Combine like terms

= 6x^2 + 7x + 49

5 0
3 years ago
Read 2 more answers
Other questions:
  • Please help me I’m not that good with linear functions
    8·1 answer
  • Find the measure of angle A
    10·1 answer
  • 73 cubed root lies between which two integers
    9·2 answers
  • Use the distributive property to expand the expression. 3(2x−6)3(2x−6) enter your answer in the box.
    14·1 answer
  • Which equation, in point-slope form, passes through (-2, 4) and has a slope of 3?
    6·1 answer
  • Sketch the absolute value function f(x) = -|-2x - 3| + 5. and way to find domain and range
    9·1 answer
  • How far is the Water Slide from the Restrooms?
    7·2 answers
  • Please Help! Question In Picture!
    15·1 answer
  • Can someone help me?​
    13·2 answers
  • PLEASE HELP AND EXPLAIN REWARDING A LOT
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!