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Sladkaya [172]
3 years ago
13

Factor completely x2 - 8x + 16.

Mathematics
2 answers:
Deffense [45]3 years ago
6 0

Answer:

(X - 4)(x - 4)

Step-by-step explanation:

x2 - 8x + 16

What two numbers multiply to 16 and add to -8

-4 * -4 = 16

-4 +-4 = -8

(x-4) (x-4)

(x-4)^2

liberstina [14]3 years ago
6 0

Answer:

B

Step-by-step explanation:

(x - 4)(x - 4)

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I need help with all of these questions can you help pls
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For 3) 6/10 times 18
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3 years ago
How to solve the exponential equation for 3^k2 • 3^-k+2 = 81
wariber [46]

Answer:

k=2

Step-by-step explanation:

3^k*2 * 3^-k+2 = 81

Factor out 81 to be : 3^4

Rewrite the equation:

k*2 - k+2 = 4

k^2 - 2k = 4

Simplify : k+2 = 4

            <u>    - 2   - 2</u>

             k = 2

6 0
3 years ago
Write the equation of a hyperbola with vertices at (-4, 0) and (4, 0) and co-vertices (0, 5) and (0, -5).
sukhopar [10]

Answer:

The answer to your question is  \frac{x^{2}}{16} - \frac{y^{2} }{25} = 1

Step-by-step explanation:

Data

(-4, 0)   (4, 0)

(0, 5)    (0, -5)

Plot the point to determine if it is a horizontal or vertical hyperbola

It is a horizontal hyperbola because the vertices are in a horizontal line. The center is (0, 0).

a = 4

b = 5

Formula

              \frac{x^{2} }{a^{2}} - \frac{y^{2}}{b^{2}} = 1

Substitution

             \frac{x^{2}}{4^{2}} - \frac{y^{2}}{5^{2}} = 1

Equation

            \frac{x^{2}}{16} - \frac{y^{2}}{25} = 1

3 0
3 years ago
Which BEST describes the slope of the line shown on the graph?
MrRissso [65]

Me not sre but I think b

3 0
4 years ago
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There is only one angle measure , ∡JHF , which is 34 degrees . I have to find the measure of angle ∡FJH .
Minchanka [31]

the assumption here being that both lines JH and FH are tangent lines to the circle, if that's the case the external angle of 34° is the angle made by the equal tangents, meaning the triangle is an isosceles with twin sides.

In an isosceles triangle the twin sides make also twin angles, so the angles at J and F are twins, and they'd be 180° - 34° = 146° total, since they're twins, each one takes half, or 73°.

5 0
3 years ago
Read 2 more answers
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