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Contact [7]
3 years ago
14

4(3x + 3) = 3(5x + 0.5) What is the value of x?

Mathematics
2 answers:
Marianna [84]3 years ago
6 0
X= 3.5
(remove the parentheses)
12x+12=15x+1.5
12x-12=15x+1.5
12x-15x =1.5-12
-3x = -10.5
(divide both sides by -3)
x= 3.5
11111nata11111 [884]3 years ago
3 0

Answer:

x=3.5

Step-by-step explanation:

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2 years ago
X + 4 is prime x2 – 9 can be factored using the formula.
Anna71 [15]

We are given two binomials: x+4 , x^2-9.

x+4 can't be factored. Therefore,  it is a prime.

Let us work on x^2-9.

9 could be written as 3^2.

Therefore, x^2-9 = x^2 - 3^2.

Now, we can apply difference of the squares formula to factor it.

We know a^2 -b^2 = (a-b) (a+b).

Therefore,  x^2 - 3^2 can be factored as (x-3) (x+3).

So, x^2-9 is not a prime binomial because it can be factored as (x-3) (x+3).

3 0
3 years ago
Read 2 more answers
If the area of a triangle is 140 inches and the height is 20 inches how wide is the house ?
m_a_m_a [10]

Answer:

Step-by-step explanation:

Area is half base × height

If area = 140 and height = 20 inches

base =140 ÷ 20 = 7 × 2 = 14 inches

3 0
3 years ago
Write 85 expanded form
WARRIOR [948]
80 + 5 is 85 in extended form
3 0
3 years ago
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I really need the answer
Airida [17]

Answer:

232

Step-by-step explanation:

all u gotta do here is plug in 40 here so:

0.145(40)x^2

0.145(1600)

f(x)= 232

6 0
2 years ago
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