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2 years ago

Expand (p+q)² = p² + 2pq+q²

Mathematics

2 answers:

castortr0y [4]2 years ago

7 0

Answer:

The answer already exists in your question...

That is correct expansion

Schach [20]2 years ago

5 0

Answer:

Step-by-step explanation:

(p+q)^2 = (p+q)*(p+q) = (p+q)*p + (p+q)*q = p^2 + pq + pq + q^2 = p^2 + 2pq + q^2

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Evgesh-ka [11]

Answer:

He bought 20 shirts

Step-by-step explanation:

shirts -- x

pants -- 3/4 of x

Therefore,

He bought --- 28(3/4 of x) pants and 40(x) shirts.

So, 28(3/4 of x) + 40(x) = 1220

=> 21x + 40x = 1220

=> 61x = 1220

=> x = 20

He bought 20 shirts and 15 pants.

Thenks and meak me brainliest :))

3 0

3 years ago

6. Jessica bought a new suitcase. The sales tax was 4.5%. If the amount of

ra1l [238]

Answer:

$ 154

Step-by-step explanation

Let the value of suitcase=x

x × 4.5% = 6.93 (converted the question into equation)

x × $\frac{4.5}{100}$ = 6.93 (converted the percentage into fraction)

x = 6.93 x $\frac{100}{4.5}$ (took reciprocal of 4.5/100 after moving it to the other side of the equation)

x = $\frac{693}{4.5}$ (multiplied the values)

x = 154 $ (simplified the fraction)

make it the brainliest and get 20 years of luck : )

3 0

3 years ago

Read 2 more answers

Find the Probability of pulling a green marble from a bag with six green and eight blue marbles.

jeka57 [31]

Answer:

6/14 or in its simplest form 3/7

4 0

3 years ago

Read 2 more answers

Can someone help me with this

SashulF [63]

Answer:

$\angle NRQ =85 \degree$

Given:

$\angle RPQ = 45 \degree \\ \angle PQR = (6x + 4)\degree \\ \angle NRQ = (15x - 5)\degree$

Step-by-step explanation:

Property used: An exterior angle of a triangle is equal to the sum of the opposite interior angles.

$= > \angle RPQ + \angle PQR = \angle NRQ \\ \\ = > 45 \degree + (6x + 4)\degree = (15x - 5)\degree \\ \\ = > 45\degree + 6x\degree + 4\degree = 15x\degree - 5\degree \\ \\ = > 49\degree + 5 \degree= 15x\degree - 6x\degree \\ \\ = > 54\degree = 9x\degree \\ \\ = > 9x\degree = 54\degree \\ \\ = > x\degree = (\frac{54}{9} )\degree \\ \\ = > x\degree = 6\degree \\ \\ Putting \: value \: of \: x \: in \: \angle NRQ \\ \\ = > \angle NRQ = (15x - 5)\degree \\ \\ = > \angle NRQ = (15 \times 6 - 5) \degree \\ \\ = > \angle NRQ =85 \degree$

4 0

3 years ago

In which direction does the parabola open? y = –3x^2 + 5x + 10

77julia77 [94]

The parabola opens downward

6 0

3 years ago

Expand (p+q)² = p² + 2pq+q²​

Expand (p+q)² = p² + 2pq+q²