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
erica [24]
3 years ago
14

The length of a rectangular painting is 3 inches longer than its width. If the diagonal is 15 inches long, what is the length of

the painting
Mathematics
2 answers:
vladimir2022 [97]3 years ago
8 0
A^2+b^2= 15^2

b=a-3

Use substitution
a^2+(a-3)^2= 225
a^2+a^2-6a+9=225
2a^2-6a=-216
2a^2-6a+216=0

2(a^2-3a+108)
2(a-12)(a+9)

(a-12)=0
a=12
(a+9)=0
a=-9
A is -9 or 12, but since an object can't have a negative length or width, a must be 12.

Plug this value of a in.
b=(12)-3
b=9

Final answer: Length=9, width=12
DanielleElmas [232]3 years ago
7 0

the previous answer is wrong, the length of the painting is 12 inches.

You might be interested in
If the market price for chair is $24 in the marginal cost for the chairs seven dollars the marginal revenue from the chair would
joja [24]
$17 (it's just the market price - the marginal cost)
7 0
3 years ago
On a coordinate graph,which of the following is true of Quadrant 3?
Nonamiya [84]
D. The x and y values are both negative

5 0
2 years ago
If x2 + 12x + n is a perfect square trinomial,<br> then n =?
Lelu [443]

Answer:

The answer is n=36 Hope this helps^_^

Step-by-step explanation:

plz give brainliest and rating

8 0
2 years ago
Read 2 more answers
Which pair of ratios form a true proportion
Delicious77 [7]
Hey there! 

I'd say your answer would most likely be Option C

Because you can multiply the \frac{3}{5} by 2 (numerator and denominator by 2 ) to get the fraction \frac{6}{10}

\frac{3(2)}{5(2)} =  2(3) = 6 = 5(2)= 10 =  \frac{6}{10}

Good luck on your assignment and enjoy your day! 

~LoveYourselfFirst:)
7 0
3 years ago
Average rate of change of the functions? (easy)
Veronika [31]

Answer:

1. 4:105

2. 12.5:1.7

3. 12:65

7 0
3 years ago
Read 2 more answers
Other questions:
  • if I play golf only on Saturday and jog every fourth day. if I play golf and jog on Saturday, how many days will it be before I
    5·1 answer
  • One more question i just really need help lol
    6·1 answer
  • Juan rolls a 6-sided number cube 4 times. The result is 2. Which best describes the events?
    15·1 answer
  • A cell phone company charges $5 for 250 text messages. How much does the company charge for 300 text messages?
    6·2 answers
  • Which definition best describes global warming?
    14·2 answers
  • Do the ratios 4/ 10 and 1/ 2 form a proportion?
    14·2 answers
  • What is the value of x?<br> A. 3<br> B. 9<br> C. 15<br> D. 30
    9·1 answer
  • Point
    10·1 answer
  • Real answers only please, i provided a picture. (no links please)
    15·1 answer
  • Raymond’s gas tank is 1/3 full. After he buys 11 gallons of gas, it is 5/6 full. How many gallons can Raymond’s tank hold?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!