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3 years ago

Distance formula (-5,5) and (1,-2)

Mathematics

1 answer:

UNO [17]3 years ago

5 0

(-2-5)^2+(1--5)^2
49+36
Sq rt of 85= 9.2

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A building contractor cut a 3 1 4 foot piece off a 12 foot piece of wood. The remaining piece of wood was then cut into 7 equal

Alexus [3.1K]

(12-3.25)/7=1.25ft ( or 1' 3" )

5 0

3 years ago

I need help with this

erik [133]

Answer:

Female: 11

Male: 16

Total:

(1) 34

(2) 25

(3) 100

Step-by-step explanation:

Female:

45 - 18 - 16 = 11

Male:

55 - 25 - 14 = 16

Total:

(1) 18 + 16

(2) 14 + 11 = 25

(3) 45 + 55 =

8 0

2 years ago

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FOR FREEEEEEEEEEE POINTS JUST REPLY ;)

ohaa [14]

Answer:

Thank you so much

Step-by-step explanation:

GoOd ViBeS oNlY

7 0

3 years ago

Factorize it evaluate it factorise it evaluate factorize

VARVARA [1.3K]

Answer:

$(x^2+y^2+xy)(x^2+y^2-xy)$

Step-by-step explanation:

Rewrite the middle term.

$x^4+2x^2y^2-x^2y^2+y^4$

Rerrange terms.

$x^4+2x^2y^2+y^4-x^2y^2$

Factor first three terms by perfect square rule.

$(x^2+y^2)^2-x^2y^2$

Rewrite $x^2y^2$ as $(xy)^2$ .

$(x^2+y^2)^2-(xy)^2$

Since both terms are perfect squares, factor using the difference of squares formula, $a^2-b^2=(a+b)(a-b)$ where $a=x^2+y^2$ and $b=xy$ .

$(x^2+y^2+xy)(x^2+y^2-(xy))$

Remove parentheses.

$(x^2+y^2+xy)(x^2+y^2-xy)$

3 0

1 year ago

Use the quadratic formula to solve the equation. x^2 – 7x – 6 = 0 Show work please.

victus00 [196]

Answer:

The standard form of quadratic equation $ax^2+bx+c = 0$ , then the values of x which are the solutions of the equation are given by:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ .

Given the equation: $x^2-7x-6=0$

Here, a=1 , b= -7 and c = -6.

then, the solution of the given equation given by:

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

Substitute the values of a, b and c in above we get;

$x=\frac{-(-7)\pm\sqrt{(-7)^2-4(1)(-6)}}{2(1)}$ or

$x=\frac{7\pm\sqrt{49+24}}{2} =\frac{7\pm\sqrt{73}}{2}$

then,

the solutions of the given equation are;

$x=\frac{7+\sqrt{73}}{2}$ , $\frac{7-\sqrt{73}}{2}$ .

4 0

3 years ago

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