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2 years ago

26. (02.08)

Mathematics

1 answer:

Mama L [17]2 years ago

7 0

Answer:

X^2 -5x -36

Step-by-step explanation:

formula of an area of a rectangle: ab

a-length

b-width

(x+4)*(x-9) = x^2 -5x -36

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Use quadratic formula to find both solutions to the quadratic equation given below . 3x^2-5x-1=0

Rudiy27

Answer:

$x1=\frac{5+\sqrt{37}} {6}$

$x2=\frac{5-\sqrt{37}} {6}$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$3x^{2} -5x-1=0$

$a=3\\b=-5\\c=-1$

substitute in the formula

$x=\frac{5(+/-)\sqrt{(-5)^{2}-4(3)(-1)}} {2(3)}$

$x=\frac{5(+/-)\sqrt{37}} {6}$

$x1=\frac{5+\sqrt{37}} {6}$

$x2=\frac{5-\sqrt{37}} {6}$

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3 years ago

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A pair of dice is rolled in a remote location and when you ask an honest observer whether at least one die came up six, this hon

LiRa [457]

3/36 is the answer i think

4 0

3 years ago

A student had taken 7 tests and received scores of 88, 73, 81, 83, 79, 73, and 97.

Elden [556K]

Answer:

median=81

mode=73

range=24

Step-by-step explanation:

median: Middle number from lowest to highest crossing one-off from either side.

(73,73,79,81,88,97)

mode:most popular number.

range: highest number minus lowest number.

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3 years ago

Please answer this is so urgent

kolezko [41]

The answer is 4565 / 63

Sorry this might be to late...

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3 years ago

The ph of a particular solution is given by pH=-log(x-2) where x represents the concentration of the hydrogen ions in the soluti

EleoNora [17]

Answer:

Thus, the graph of the function $ph= -log(x-2)$ is given below.

Step-by-step explanation:

We are given the ph of a particular solution as $ph= -log(x-2)$ , where x represents the concentration of hydrogen ions in the solution.

Since, the function is given by, $ph= -log(x-2)$

So, we see that,

The domain of the function is {x | x≥2 } as logarithm function is not defined at zero.

Moreover, we see that,

As $x\rightarrow \infty$ , the function $ph\rightarrow \infty$

Thus, the graph of the function $ph= -log(x-2)$ is given below.

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3 years ago

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