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Hatshy [7]
3 years ago
6

8x(3x2-8)+10 what does his mean?

Mathematics
2 answers:
maria [59]3 years ago
6 0
8\times(3\times2-8)+10 \\ =8\times(6-8)+10 \\ =8\times(-2)+10 \\ =-16+10 \\ =-6
choli [55]3 years ago
5 0
8*(3*2-8)+10= \\\\ =8*(6-8)+10= \\\\ = 8*(-2)+10= \\\\ =-16+10= \\\\ =\boxed{-6}
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Answer: non of those numbers

Step-by-step explanation:

all the numbers couldn't form a triangle

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2 years ago
What the number is ؟
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5 0
3 years ago
Rewrite x2 − 6x + 7 = 0 in the form (x − a)2 = b, where a and b are integers, to determine the a and b values.
Setler79 [48]

Answer:

Therefore values of a and b are

a=3\ and\ b = 2

Step-by-step explanation:

Rewrite x^{2}-6x+7=0 in the form

(x-a)^{2}=b

where a and b are integers,

To Find:

a = ?

b = ?

Solution:

x^{2}-6x+7=0 ..............Given

Which can be written as

x^{2}-6x=-7

(\frac{1}{2} coefficient\ of\ x)^{2}=(\frac{1}{2}\times -6)^{2}=9

Adding half coefficient of X square on both the side we get

x^{2}-6x+9=-7+9=2 ...................( 1 )

By identity we have (A - B)² =A² - 2AB + B²

Therefore,

x^{2}-6x+9=x^{2}-2\times 3\times x+3^{2}=(x-3)^{2}

Substituting in equation 1 we get

(x-3)^{2}=2

Which is in the form of

(x-a)^{2}=b

On comparing we get

a = 3 and b = 2

Therefore values of a and b are

a=3\ and\ b = 2

4 0
3 years ago
Which expression is equivalent to...
torisob [31]

Answer:

x^{\frac{2}{7} } y^{-\frac{3}{5} } \\  i.e answer A.

Step-by-step explanation:

This question involves knowing the following power/exponent rule:

\sqrt[n]{x^m} = x^\frac{m}{n} \\\\so \sqrt[7]{x^2} = x^\frac{2}{7} \\\\and  \\\\ \sqrt[5]{y^3} = y^\frac{3}{5} \\

Next, when a power is on the bottom of a fraction, if we want to move it to the top, this makes the power become negative.

so the y-term, when moved to the top of the fraction, becomes:

y^{-\frac{3}{5} } \\

So the answer is: x^{\frac{2}{7} } y^{-\frac{3}{5} } \\

7 0
2 years ago
If 40% of a number is 56, what was the original number?
oksian1 [2.3K]
40/100= 56/x 40x=100(56) 40x=5600 Divide both sides by 40 to get x alone. X=140
7 0
2 years ago
Read 2 more answers
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