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SCORPION-xisa [38]
3 years ago
15

Expand the following algebraic expression (n + 5) (n + 3)

Mathematics
2 answers:
marshall27 [118]3 years ago
6 0

{n}^{2}  + 30n + 15
Mamont248 [21]3 years ago
5 0

Answer:

n²+8n+15

Step-by-step explanation:

Given expression is (n+5)(n+3).

We have to expand it.

(n+5)(n+3)

Each of the two terms in first binomial is multiplied by the second binomial.

n(n+3)+5(n+3)

Each of the two terms in first binomial is multiplied by the each term of second binomial.

n(n)+n(3)+5(n)+5(3)

simplify

n²+3n+5n+15

add like terms

n²+n(3+5)+15

n²+n(8)+15

n²+8n+15 which is the answer.


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2x - 5 < 33 what are all the values to this inequality​
Lynna [10]

Answer:

x < 19

Step-by-step explanation:

Given that,

An inequality 2x - 5 < 33.

LHS of the inequality is 2x - 5

RHS of the inequality is 33

LHS < RHS

i.e.

2x - 5 < 33

Add 5 to both sides of the inequality

2x - 5 +5 < 33+5

2x < 38

Divide both sides by 2.

x < 19

So, the value of x is less than 19.

4 0
3 years ago
Ava makes bead necklaces. She has a total of 6,048 beads each necklace has 24 beads. Her friend Maria says that the greatest num
Svet_ta [14]

Answer:

There's no work shown for me to understand how Maria got her answer.. Divide 6048 by 24 to get 252 necklaces.

Step-by-step explanation:

Divide 6048 beads by 24 beads per necklace to get 252 necklaces.

8 0
3 years ago
Find the square roots of a number 60 and 1,525
garri49 [273]

Answer:

If you are looking for the expression, the answer is  √60x + 1,525


3 0
4 years ago
Read 2 more answers
Find the number of rectangles in 8×8 chessboard. (not just the 1x1 squares)
Gekata [30.6K]

Answer:

288

Step-by-step explanation:

<em>                                             Number of rectangles</em>

<em>____________________________________________________________</em>

1 × 1 squares 9-1 = 1 = 8*8 = 64

1 × 2 squares 9-2 = 7 = 8*7 = 56

1 × 3 squares 9-3 = 6 = 8*6 = 48

1 × 4 squares 9-4 = 5 = 8*5 = 40

1 × 5 squares 9-5 = 4 = 8*4 =32

1 × 6 squares 9-6 = 3 = 8*3 = 24

1 × 7 squares 9-7 = 2 = 8*2 = 16

1 × 8 squares 9-8 = 1 = 8*1 = 8

64 + 56 + 48 + 40 + 32 + 24 + 16 + 8 = 288

<em>Thus,</em>

<em>the number of squares on a chessboard is 228.</em>

<em />

<em>Hope this helps :)</em>

8 0
3 years ago
Write your answer in simplest radical form​
mars1129 [50]

Answer:

q = \sqrt{2}

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin30° = \frac{1}{2} , then

sin30° = \frac{opposite}{hypotenuse} = \frac{q}{2\sqrt{2} } = \frac{1}{2} ( cross- multiply )

2q = 2\sqrt{2} ( divide both sides by 2 )

q = \sqrt{2}

7 0
3 years ago
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