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3 years ago

Need help plz what is a hole

Mathematics

1 answer:

jolli1 [7]3 years ago

8 0

Answer:

Statements 1,4&5

Step-by-step explanation:

A hole is when both, numerator and denominator, of a fraction become 0 (zero).

This would happen when the numerator and denominator have a common factor.

Example:

(2x+4)/(x+2)

= [2(x+2)]/(x+2) = 2

Although the fraction can be simplified, there's a hole at x = -2.

x = -2 will not be part of the domain.

The hole is represented by an open circle.

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If the zeroes of a quadratic function, G, are 4 and -2, what is the equation of the axis of symmetry of G

MAVERICK [17]

9514 1404 393

Answer:

x = 1

Step-by-step explanation:

The axis of symmetry is the vertical line halfway between the zeros.

x = (4 -2)/2

x = 1 . . . equation of axis of symmetry

4 0

3 years ago

Now go to diagonals of parallelograms. You'll see two line segments, and marked with their midpoints, E and F. Verify that E and

AURORKA [14]

Answer:

AE=4

EC=4

BF=2.24

FD=2.24

Step-by-step explanation:

here we go honey

5 0

3 years ago

Need the correct answer for 16 plz

cluponka [151]

1/50 of a mile is the distance the snail goes in 50 minutes. To get an hour, the snail must move for another 10 minutes (60-50=10).

Dividing 1/50 mile by 5 gives us 0.2/50 mile, which would be what the snail travels in 10 mins.

This can be added to 1/50 to give 1.2/50 mile as the answer

OR

You can take 0.2 and times it by 6 (to get 60 minutes from 10 minutes) to give the same answer as above.

Either way, the snail has gone 1.2 miles after the hour has passed.

5 0

3 years ago

Nico practiced drums 1.5 fewer hours than he practiced piano. If Nico practiced the piano for 4 hours, how many hours did Nico p

Strike441 [17]

Answer:

2.5 hours

Step-by-step explanation:

4 - 1.5 = 2.5

You must subtract 1.5 from the amount of hours he plays piano, which is 4. This is because he spends 1.5 hours less playing drums than he does playing piano.

5 0

3 years ago

by about how much will f(x,y,z) = In root x^2 +y^2 +z^2 change if the point P(x, y, z) moves from P0(2,2,6) a distance of ds = .

konstantin123 [22]

Answer:

$\frac{1}{44} \approx0.0227\hspace{3}units$

Step-by-step explanation:

In order to find the answer we need to calculate the directional derivative:

$D_uf(x,y,z)=\nabla f\bullet u$

$\nabla f =The\hspace{3}gradient\hspace{3}of\hspace{3}f\\u=Unit\hspace{3}vector$

The gradient of f is:

$\nabla f(x,y,z)=\langle\frac{x}{x^2+y^2+z^2}, \frac{y}{x^2+y^2+z^2},\frac{z}{x^2+y^2+z^2}\rangle$

The unit vector can be found as:

$u=\frac{v}{|v|} =\frac{3i+6j-2k}{\sqrt{3^2+6^2+(-2^2)} } =\langle\frac{3}{7} ,\frac{6}{7}, \frac{-2}{7} \rangle$

The directional derivative at the point is:

$D_uf(2,2,6)=\langle\frac{1}{22}, \frac{1}{22} ,\frac{3}{22} \rangle \bullet \langle \frac{3}{7} ,\frac{6}{7} ,\frac{-2}{7} \rangle =\frac{5}{22} \bullet \langle \frac{3}{7} ,\frac{6}{7} ,\frac{-2}{7} \rangle =\frac{5}{22}$

Finally, the problem tell us that the point moves a distance of 0.1 units. Hence f(x,y,z) will move:

$\frac{5}{22} * 0.1=\frac{1}{44}\approx 0.0227\hspace{3}units$

6 0

3 years ago