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
jolli1 [7]
3 years ago
8

If a+b = 7, and a² +b²=25then ab = ?​

Mathematics
1 answer:
Rama09 [41]3 years ago
3 0

a2+b2=25

or, (a+b)^2-2ab=25

or, (7)^2-2ab=25 [a+b=7]

or, 49-25=2ab

or, 24/2=an

•°• ab=12....

You might be interested in
What is the solution to the equation?<br><br> 6x-3=3x+12
Alla [95]

Answer:

x=5

Step-by-step explanation:

Step 1: Subtract 3x from both sides.

6x−3−3x=3x+12−3x

3x−3=12

Step 2: Add 3 to both sides.

3x−3+3=12+3

3x=15

Step 3: Divide both sides by 3.

3x/3=15

x=5

8 0
3 years ago
Read 2 more answers
Hank earns $12 per hour for babysitting. How much does he earn for 15 hours of babysitting?
Reptile [31]


$180

Multiply 12 by 15.

4 0
3 years ago
Read 2 more answers
Một xe máy khởi hành a đến b cách nhau 160 km sau 1 giờ ô tô đi từ b đến a hai xe gặp nhau tại c cách b 72 km biết vận tốc ô tô
Alja [10]

Answer:

74

Step-by-step explanation:

well, you see, потому что я плохая сука-ниггер, да бруддахол лмао

5 0
3 years ago
John is building his daughter a doll house that is a miniature model of their house. The front of their house has a circular win
n200080 [17]

Answer:

see the procedure

Step-by-step explanation:

we know that

The scale factor of the model is 1/30

That means ----> 1 unit in the model represent 30 units in the actual

so

using proportion

Find out how much represent 5 ft in the model

Convert feet to inches

Remember that

1\ ft=12\ in

so

5\ ft=5(12)=60\ in

Let

x -----> the diameter of the circular window in the model house in inches

\frac{1}{30}=\frac{x}{60}\\\\x=\frac{60}{30}\ in

Simplify

2\ in

therefore

The diameter of the circular window in the model house is 2 inches

see the attached figure to better understand the problem

8 0
3 years ago
Help plz:))) I’ll mark u brainliest <br> ASAP!!!
RSB [31]

Answer:30/4

Step-by-step explanation:180-11x+5, add all up=180, you get 30/4

unleess i messed up somewhere

7 0
3 years ago
Read 2 more answers
Other questions:
  • I'm doing test corrections rn but I need to show the work for this answer. The problem is that the this doesn't show the work an
    11·1 answer
  • I need help app can you guys please help me
    10·1 answer
  • I am 10 what is 150% of me
    5·2 answers
  • 9x-(6×-1)=2 solve using addition and multiplication ​
    8·1 answer
  • Which table represents a function?
    7·1 answer
  • How do you do algebra?
    11·2 answers
  • In a freshman class of 80 students,22 students take Consumer Education,20 students take French,and 4 students take both.Which eq
    12·1 answer
  • What is the value of X in the equation below 150=3/5x
    8·1 answer
  • What does k equal to?<br> -38=-0.4k
    5·1 answer
  • Is JH is the perpendicular bisector of GI what is GH?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!