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3 years ago

Simplify sqrt(x^2-16)

1 answer:

4 0

Remember for this type of question.I'm guessing you make the equation equal to 0. Then square both sides the (X ^2-16) and 0. Then the square root goes away. Then you factor it according to the difference of squares method. By taking the square root of x^2 and 16. So ultimately it turns into 2 binomials according to the difference of squares method. The simplified answer would be (X-4)(X+4)=0. To solve for x in each case, take each respective equation separately and make it equal to 0. Solve for x.

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A. Equilateral B. Right C. Obtuse D. Acute E. Scalene

faltersainse [42]

Answer:

A) Scalene E) Obtuse

Detailed Explanation:

A) Scalene

This triangle would be classified as scalene because none of the angles are equal.

____________________________________________________________

E) Obtuse

This triangle would be classified as an scalene triangle because one of the angles is larger than 90 degrees.

8 0

3 years ago

Read 2 more answers

Question 6 (1 point)

charle [14.2K]

well, the table has 5 points in it, let's pick any two hmmm say let's use hmmm (2 , 7) and (6 , 17)

$(\stackrel{x_1}{2}~,~\stackrel{y_1}{7})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{17}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{17}-\stackrel{y1}{7}}}{\underset{run} {\underset{x_2}{6}-\underset{x_1}{2}}}\implies \cfrac{10}{4}\implies \cfrac{5}{2}$

when x = 0, from the table, y = 2, so there's the y-intercept.

7 0

2 years ago

47 + 15 .....................

Igoryamba

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

If you could explain to me how you get the answer, that will be great!

Varvara68 [4.7K]

Answer:

156 inches^2

Step-by-step explanation:

The area of a triangle is 1/2 base x height

All of the triangles have a base of 6 inches and a height of 10 inches.

so 1/2 6 x 10= 30

There are 4 triangles with an area of 30 square inches

and then the square in the middle has a length of 6 in and a width of 6 in so it has an area of 36 in^2

so in total you would have 30+30+30+30+36, or 156

3 0

3 years ago

The product of a number and 8 less than the number is –15. Find the number. and plz explain

blondinia [14]

Answer:

It can be 5 or 3

Step-by-step explanation:

let x = that number

x * (x - 8) = -15

xx - 8x + 15 = 0

xx - 3x - 5x + 15 = 0

x(x - 3) - 5(x - 3) = 0

(x - 5)(x - 3) = 0

then x = 5 or x = 3

4 0

3 years ago