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ludmilkaskok [199]
2 years ago
13

2 Simplify the expression by combining like terms. 2x + 4y + 6 + 2y - 5+ 3x <

Mathematics
2 answers:
Katen [24]2 years ago
4 0

Answer:

5x + 6y + 1

Step-by-step explanation:

tensa zangetsu [6.8K]2 years ago
4 0

Answer:5x+6y+1

Step-by-step explanation:

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A man 6 feet tall casts a shadow that is 11 feet long. A building casts a shadow of 139 feet long. The building is tall. Round y
dmitriy555 [2]

Given:

Height of man = 6 ft

Height of man's shadow = 11 feet

Height of building's shadow = 139 feet

To find:

The height of the building.

Solution:

We know that the heights of the objects and there shadows are always proportional.

\dfrac{\text{Height of man}}{\text{Height of man's shadow}}=\dfrac{\text{Height of the building}}{\text{Height of building's shadow}}

Let x be the height of the building.

\dfrac{6}{11}=\dfrac{x}{139}

Multiply both sides by 139.

\dfrac{6}{11}\times 139=x

\dfrac{834}{11}=x

75.8181...=x

x\approx 75.8

Therefore, the building is 75.8 feet long.

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2 years ago
FIND THE VALUE OF X ANSWER ASAP 100 POINT QUESTION
Morgarella [4.7K]

Answer:

i got 45

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Distribute<br>(x+2)(x+9)<br><br>a) x^2+15x+18<br>b) x^2+6x+11<br>c) x^2+7x+9<br>d) x^2+11x+18​
Natasha2012 [34]

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6 0
3 years ago
Which expression is equivalent to
maksim [4K]
The answer is C . -7r^2 + 12r -8
5 0
3 years ago
A) Write the sequence of natural numbers which are multiplied by 3 ?
Volgvan

Answer:

a) 3, 6, 9, 12, 15,...,3\cdot n, b) 4, 7, 10, 13, 16,...,3\cdot n +1, c) Both sequences are arithmetic.

Step-by-step explanation:

a) The sequence of natural numbers which are multiplied by 3 are represented by the function f(n) = 3\cdot n, n\in \mathbb{N}. Let see the first five elements of the sequence: 3, 6, 9, 12, 15,...

b) The sequence of natural numbers which are multiplied by 3 and added to 1 is represented by the function f(n) = 3\cdot n + 1, n\in \mathbb{N}. Let see the first five elements of the sequence: 4, 7, 10, 13, 16,...

c) Both sequences since differences between consecutive elements is constant. Let prove this statement:

(i) f(n) = 3\cdot n

\Delta f = f(n+1) -f(n)

\Delta f = 3\cdot (n+1) -3\cdot n

\Delta f = 3

(ii) f(n) = 3\cdot n +1

\Delta f = f(n+1)-f(n)

\Delta f = [3\cdot (n+1)+1]-(3\cdot n+1)

\Delta f = 3

Both sequences are arithmetic.

8 0
3 years ago
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