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Volgvan
3 years ago
6

What is 10 less than X

Mathematics
2 answers:
Arada [10]3 years ago
5 0
x-10
...........
mina [271]3 years ago
4 0
The answer is X-10 if that was what you wanted to know
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I NEED HELP PLS THIS IS DUE IN 3 HOURS
Mariulka [41]

Answer:

Part 1)  x^{2} -2x-2=(x-1-\sqrt{3})(x-1+\sqrt{3})

Part 2)  x^{2} -6x+4=(x-3-\sqrt{5})(x-3+\sqrt{5})

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}

Part 1)

in this problem we have

x^{2} -2x-2=0

so

a=1\\b=-2\\c=-2

substitute in the formula

x=\frac{-(-2)(+/-)\sqrt{-2^{2}-4(1)(-2)}} {2(1)}\\\\x=\frac{2(+/-)\sqrt{12}} {2}\\\\x=\frac{2(+/-)2\sqrt{3}} {2}\\\\x_1=\frac{2(+)2\sqrt{3}} {2}=1+\sqrt{3}\\\\x_2=\frac{2(-)2\sqrt{3}} {2}=1-\sqrt{3}

therefore

x^{2} -2x-2=(x-(1+\sqrt{3}))(x-(1-\sqrt{3}))

x^{2} -2x-2=(x-1-\sqrt{3})(x-1+\sqrt{3})

Part 2)

in this problem we have

x^{2} -6x+4=0

so

a=1\\b=-6\\c=4

substitute in the formula

x=\frac{-(-6)(+/-)\sqrt{-6^{2}-4(1)(4)}} {2(1)}

x=\frac{6(+/-)\sqrt{20}} {2}

x=\frac{6(+/-)2\sqrt{5}} {2}

x_1=\frac{6(+)2\sqrt{5}}{2}=3+\sqrt{5}

x_2=\frac{6(-)2\sqrt{5}}{2}=3-\sqrt{5}

therefore

x^{2} -6x+4=(x-(3+\sqrt{5}))(x-(3-\sqrt{5}))

x^{2} -6x+4=(x-3-\sqrt{5})(x-3+\sqrt{5})

5 0
3 years ago
Cassie Boland earns $16.25 an hour. What gross wages did she
sergejj [24]

Answer:

$406.25

Step-by-step explanation:

Multiply 16.25 by 25:

16.25(25)

= 406.25

So, her gross wages were $406.25

6 0
4 years ago
Read 2 more answers
Find the value of a. Round to the nearest tenth, if necessary. 11 24 a​
Masja [62]

Answer:

21.3

Step-by-step explanation:

It's easier to see how to do this if you transfer the 11 to the bottom of the rectangle. The look at the left triangle. It has 3 sides.

24, 11, and a.

You should be able to find a using

a^2 + 11^2 = 24^2     Expand the squares

a^2 + 121 = 576         Subtract 121 from both sides

a^2 = 576 - 121

a^2 = 455                  Take the square root of both sides.

sqrt(a^2) = sqrt(455)

a = 21.33

or

a = 21.3

3 0
3 years ago
A triangle has side lengths measuring 2x + 2 ft x + 3 ft, and
Marta_Voda [28]

Answer:

3x+5 < n < x-1

Step-by-step explanation:

we know that

The <u><em>Triangle Inequality Theorem</em></u> states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

so

Applying the Triangle Inequality Theorem

1) (2x+2)+(x+3) > n

solve for n

3x+5> n

Rewrite

n

2) (x+3)+n> 2x+2

n> x-1

therefore

3x+5 < n < x-1

5 0
3 years ago
Solve the iniquality 6x - 8 &gt; 4x + 26
lesya692 [45]

Answer:

x > 17

Step-by-step explanation:

Add 8 to both sides:

6x - 8 > 4x + 26

6x > 4x + 34

Subtract 4x from both sides:

2x > 34

Divide each side by 2:

x > 17

So, the solution is x > 17

7 0
3 years ago
Read 2 more answers
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