What value of x makes this statement true? 3x = 2x+12

Mathematics

2 answers:

saul85 [17]3 years ago

4 0

Answer:

x=12

Step-by-step explanation:

3x=2x+12

3x-2x=12

x=12

Tom [10]3 years ago

3 0

Answer:

Step-by-step explanation:

3x12=36 2x12=24 +12=36

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What is x^4-10x^2+9 simplified

Zanzabum

$\bf \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-------------------------------\\\\
%x^4-10x^2+9 
x^4-10x^2+9\implies (x^2)^2-10x^2+9\implies (x^2-9)(x^2-1)
\\\\\\
\underline{(x^2-3^2)}(x^2-1^2)\implies \underline{(x-3)(x+3)}(x-1)(x+1)$

$\bf \textit{keep in mind that }1=1^2=1^3=1^5=1^{10}=1^{1000000}$

3 0

3 years ago

Someone please help me! Show all work to factor x4 − 5x2 + 4 completely.

MakcuM [25]

Step-by-step explanation:

=>x⁴-5x²+4

=>x⁴-x²-4x²+4

=>x²(x²-1)-4(x²-1)

=>(x²-1)(x²-4)

=>(x+1)(x-1)(x+2)(x-2)

hope this helps you.

4 0

3 years ago

Please help meeeeeeeeeeee

zmey [24]

Answer:

Identifying and Writing Equivalent Rates

Ratios compare two quantities. A rate is a type of ratio that compares two quantities that have different units of measurement. The word “per” is often used to describe rates.

Rates can be written as fractions. The first quantity is the numerator and the second quantity is the denominator. Different rates that have the same value are equivalent rates. You can find an equivalent rate the same way you find equivalent ratios—divide or multiply the numerator and the denominator by the same number.

Step-by-step explanation:

6 0

3 years ago

From the diagram below, we can tell that < ADB is congruent to ____.

kati45 [8]

Answer:

<CBA

Step-by-step explanation:

<CBA = 90 degrees (given)

<ADB = 90 degrees (given)

Hence They are congruent, so choose A

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