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
Andrews [41]
3 years ago
8

If ab = 10 and a2 + b2 = 30, what is the value of (a + b)^2?

Mathematics
2 answers:
Bogdan [553]3 years ago
6 0
Ab=10
a^2+b^2=30
((a+b)^2=a^2+2ab+b^2=a^2+b^2+2*10=30+20=50

Novay_Z [31]3 years ago
3 0

Answer: (a + b)² = 50

Step-by-step explanation:

(a + b)² = (a + b)(a + b)

= a² + ab + ab + b²

So, (a + b)² = a² + b² + 2ab

Then substitute the value of ab and (a² + b²)

(a + b)² = 30 + 2(10)

= 30 + 20

Therefore, (a + b)² = 50

You might be interested in
Simplify:<br> 49 - 4 x 49 ÷ 7<br><br><br> 21<br> 34<br> 36
enot [183]

Answer:

21

Step-by-step explanation:

49 - 4 x 49 / 7 =

49 - 196 / 7 =

49 - 28 =

21

<em>Hope that helps!</em>

5 0
3 years ago
Read 2 more answers
Sally sells strawberries at the farmer's market
rusak2 [61]

Answer:

thats cool so does Susan

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
(-w-6)/(w^2+4w-12), how do i write this into simplest form?
PIT_PIT [208]
First factorise the top = -(w+6)
The first factorise the bottom: (w^2 + 4w -12) = (w+6) (w-2)
Therefore the two (w+6) cancels out and you are left with -1 / w-2
7 0
3 years ago
Container is shaped like a triangular prism. 3 cm 5 cm
Marianna [84]

ANSWER

A=222\operatorname{cm}

EXPLANATION

A) From the diagram, we see that the base of the triangular face is 4 cm long and the height of the triangular face is 3 cm.

B) From the diagram, we see that the length of two of the rectangular face is 15 cm and the width of the rectangular face is 5 cm.

The third rectangular face has a length of 15 cm and a width of 4 cm.

C) The surface area of the prism is the sum of the areas of the faces of the prism.

The area of a triangle is given as:

A=\frac{1}{2}\cdot b\cdot h

where b = base, h = height

The area of a rectangle is given as:

A=l\cdot w

where l = length, w = width

Therefore, the surface area of the prism is:

\begin{gathered} A=2(\frac{1}{2}\cdot4\cdot3)+2(15\cdot5)+(15\cdot4) \\ A=12+150+60 \\ A=222\operatorname{cm}^2 \end{gathered}

4 0
1 year ago
Write the equation of the line shown.
defon
4,5 is the answer I think
6 0
3 years ago
Other questions:
  • Ivan has 6 times as many blue beads as red beads. He has 49 red and blue beads in all. How many blue beads does Ivan have?
    6·2 answers
  • PLEASE I NEED HELP FAST!!!! :(
    5·1 answer
  • if there are 1050 students in a school and the ratio of boys to girls is 9:5 what is the number if boys in the school?​
    12·1 answer
  • Use rate in a sentence
    7·1 answer
  • - Бу - 10x = 45<br>-Зу + 10x = -5<br>x=<br>y=​
    5·1 answer
  • Write an equation to show how many times greater the value of a 5 in the tens place is than a 5 in the tenths place
    13·1 answer
  • Describe relationship I WILL MARK BRAINLIEST IF YOU GET IT RIGHT
    9·1 answer
  • Solve the following proportion:<br> 15 X – 3<br> 3<br> 5. .<br> X=<br> Back<br> Next
    13·1 answer
  • Carlos has at most $40 to spend on food for a barbeque. He wants to buy hot dogs and hamburgers and then
    7·1 answer
  • Given f(x) = 4x + 2, find f-1(3).
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!