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SCORPION-xisa [38]
2 years ago
15

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

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

{n}^{2}  + 30n + 15
Mamont248 [21]2 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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3 erasers cost $4.41. Write a proportion that would solve for the cost of 4 erasers.
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Answer:

$5.88

Step-by-step explanation:

3 erasers ⇒ $4,41

4 erasers ⇒ $A

A = 4 erasers * $4.41 / 3 erasers

A = $ 5.88

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Which is the graph of y = RootIndex 3 StartRoot x EndRoot?
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Given:

The equation is:

y=\sqrt[3]{x}

To find:

The graph of the given equation.

Solution:

We have,

y=\sqrt[3]{x}

The table of values is:

x                 y

-8              -2

-1                -1

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Plot these points on a coordinate plane and connect them by a free hand curve as shown in the below graph.

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The number of students that enrolled in a new school club as a function of time can be represented by the function as shown in t
madam [21]

Answer:

I think it is 1 student per 15 min

Step-by-step explanation:

5 0
3 years ago
Which equation could be used to solve the problem? In the summer, Ynez earns $15 per week mowing lawns. At that rate, if she wor
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M=15*12. Or, if you want a more general equation for this problem: m=15(w), where w means weeks worked.
7 0
2 years ago
N=<br> Help me please thanks :))
serious [3.7K]

The measure of n of the sector with the given area is: 100°

<h3>What is the Area of a Sector?</h3>

The area of a sector of a circle = ∅/360 × πr².

We are given that:

Area of the sector = 40π

Radius (r) = 12 units

∅ = n°

Plug in the values and solve for n

40π = n/360 × π(12²)

40π = n/360 × π144

Divide both sides by 144π

40π/144π = n/360 × 144π/144π

40/144 = n/360

40(360) = n(144)

14,400/144 = n

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Learn more about the area of sector on:

brainly.com/question/22972014

#SPJ1

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1 year ago
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