4 years ago

It is given that a+b=6 and ab=7. Find the value of a^2 + b^2.

1 answer:

n200080 [17]4 years ago

4 0

Use the identity:-

a^2 + b^2 = (a + b)^2 - 2ab

Plugging in the given values;-

a^2 + b^2 = 6^2 - 2*7 = 36-14 = 22 Answer

You might be interested in

What is the value of 3x squared when x = 2?

KonstantinChe [14]

Answer:

Step-by-step explanation:

$(3x)^{2}$ = $(3(2))^{2}$ =36

(OR)

3( $x^{2}$ )=3(4)=12

Its depend on your sentence structure, what u r asking!!

7 0

3 years ago

Read 2 more answers

HELP ASAP!!Solve for x. Enter the solutions from least to greatest.

telo118 [61]

X^2 - 5x - 14 = 0

what multiplies to negative 14 and adds to negative 5? -7 and positive 2.

(x - 7) (x + 2) = 0

Lesser x = -2
Greater x = 7

4 0

3 years ago

What is the answer for my khan academy homework

Verdich [7]

Answer:

Step-by-step explanation:

16 divided by 4 is 4

8 + 4 : 12

7 0

3 years ago

Read 2 more answers

Solve the following inequality. |3n-2|-2<1

disa [49]

Answer: $\frac{-1}{3}$ < n < $\frac{5}{3}$

Step-by-step explanation:

| 3n - 2 | - 2 < 1

+2 +2

| 3n - 2 | < 3

3n - 2 < 3 and 3n - 2 > -3

+2 +2 +2 +2

3n < 5 and 3n > -1

n < $\frac{5}{3}$ and n > $\frac{-1}{3}$

$\frac{-1}{3}$ < n < $\frac{5}{3}$

Interval Notation: $(\frac{-1}{3},$ $\frac{5}{3})$

Graph: $\frac{-1}{3}$ o--------------------o $\frac{5}{3}$

7 0

3 years ago

Read 2 more answers

‼️‼️any help I would appreciate

mylen [45]

Hey there!

In an isosceles triangle the 2 base angles are congruent, therefore angle B would measure 50 degrees just like the measure of angle A.

Thanks for using Brainly!

5 0

3 years ago