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MAXImum [283]
3 years ago
14

Match the algebraic expressions given below with the verbal phrases.

Mathematics
1 answer:
aev [14]3 years ago
8 0

Step-by-step explanation:

5n - 2 => 2 less than 5 times a number

2(5 + n)=> Twice the sum of 5 and a number

2n + 5 => The sum of twice a number and 5

5n/2 => Half of <u>5</u> times a number:

2 - 5n => The product of 5 and a number less than 2

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write the following inequality in slope-intercept form. –6x 2y ≤ 42 a. y ≥ 3x 21 b. y ≤ 3x – 21 c. y ≥ 3x – 21 d. y ≤ 3x 21
borishaifa [10]
-6x + 2y =< 42
2y =< 6x + 42
y =< 3x + 21
4 0
3 years ago
Read 2 more answers
If x^2+1/x^2=3 find the value of x^2/(x^2+1)^2<br> Express answer as a common fraction.<br> Thanks!!
timama [110]

x^2+\dfrac1{x^2}=3\implies x^4+1=3x^2\implies x^4-3x^2+1=0

By the quadratic formula,

x^2=\dfrac{3\pm\sqrt5}2\implies x^2+1=\dfrac{5\pm\sqrt5}2

Then

(x^2+1)^2=\dfrac{25\pm10\sqrt5+5}4=\dfrac{15\pm5\sqrt5}2

\implies\dfrac{x^2}{(x^2+1)^2}=\dfrac{\frac{3\pm\sqrt5}2}{\frac{15\pm5\sqrt5}2}=\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}

Multiply numerator and denominator by the denominator's conjugate:

\dfrac{3\pm\sqrt5}{15\pm5\sqrt5}\cdot\dfrac{15\mp5\sqrt5}{15\mp5\sqrt5}=\dfrac{45\pm15\sqrt5\mp15\sqrt5-25}{15^2-(5\sqrt5)^2}=\dfrac{20}{100}=\dfrac15

3 0
3 years ago
FIRST PERSON WHO ANSWERS THIS WILL BE BRAINLIEST
djverab [1.8K]

Answer:

2.- 100

Step-by-step explanation 1:

\frac{7}{25} + \frac{3}{4} = \frac{28}{100} + \frac{75}{100} = \frac{103}{100}

↑ As we can see, the only common multiple between 4 and 25 that is given to is 100.

Step-by-step explanation 2:

\frac{(7 * 4) + (3 * 25)}{4 * 25} = \frac{28 * 75}{100} = \frac{103}{100}

↑ Another way of knowing the answer is by using a fraction solving method. As we can see, the denominator is once again 100.

Hope it helped,

BiologiaMagister

3 0
3 years ago
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PSYCHO15rus [73]

Step-by-step explanation:

(A n b) = this means that we need d value that is in a and b only

ans= (1,2,4)

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2 years ago
Kari uses a gallon of paint to
andreev551 [17]

Answer:

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Step-by-step explanation:

because you don't know the percentage one gallon takes you cannot be sure how much you need after you get the dimensions and percentage a gallon takes

3 0
3 years ago
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