. (y + 5)(y – 7) = 0

Mathematics

1 answer:

vesna_86 [32]3 years ago

3 0

Answer:

Step-by-step explanation:

y is 1

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aleksley [76]

Answer: ummm

Step-by-step explanation:

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2 years ago

Read 2 more answers

Please add explanation

Igoryamba

The answer is C

The equation has x = 8/10

To get X by itself you need to divide both sides by 8, so the equation should become X = 10/8

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3 years ago

Can someone help me with this math question? The answer is suppose to be

Tanzania [10]

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3 years ago

Is 4.9199199919999... a rational or irrational number?

ratelena [41]

Answer:

irrational

Step-by-step explanation:

rational is if its repeating like (1.11111111) irrational if its (1.2464383252222)

7 0

2 years ago

(3x+2)∧2=9 how do i solve this in the square root property

Irina18 [472]

$(3x+2)^2=9 \\\\9x^2+12x+4-9=0\\\\9x^2+12x-5=0\\\\a=9,\ \ b=12, \ \ c=-5$

$x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a}=\frac{-12-\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12-\sqrt{144+180}}{18}=\\\\=\frac{-12-\sqrt{324}}{18}=\frac{-12-18}{18}=\frac{-30}{18}=-\frac{5}{3}\\\\x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a}=\frac{-12+\sqrt{12^2-4 \cdot9 \cdot (-5)}}{2 \cdot 9}=\frac{-12+18}{18}=\frac{6}{18}=\frac{1}{3} \\\\Answer: \ x=-\frac{5}{3}\ \ and \ \ x=\frac{1}{3}$

6 0

3 years ago