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tamaranim1 [39]
3 years ago
7

Finding the Zeroes of a Quadratic Function

Mathematics
1 answer:
lora16 [44]3 years ago
6 0

Answer:

-2 a

Step-by-step explanation:

 

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If north is the direction of the positive y-axis and east is the direction of the positive x-axis, give the unit vector pointing
tatuchka [14]
North is the direction of positive y-axis. East is the direction of positive x-axis. So West will be the direction of negative x-axis.

Northwest will mean, in between north and west i.e. in between y-axis and the negative x-axis which is the mid of the 2nd quadrant. Thus the vector pointing northwest will form an angle of 135 degrees with positive x-axis.

The magnitude of unit vector is 1 and is forming an angle of 135 degrees. In terms of its components, we can write:

x-component = 1 cos (135) = - \frac{ \sqrt{2} }{2}
y-component = 1 sin (135) = \frac{ \sqrt{2} }{2}

Thus the unit vector will be = - \frac{ \sqrt{2} }{2}x+ \frac{ \sqrt{2} }{2}y

In vector form, component form the vector can be written as:

(- \frac{ \sqrt{2} }{2}, \frac{ \sqrt{2} }{2})
7 0
3 years ago
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What is 108 divided by 8
pantera1 [17]

Answer:

13.5

Step-by-step explanation:

Mark me brainliest!

Or 13 with a remainder of 5

13R5

or

13 5/8

3 0
3 years ago
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Use the net to find the surface area of the regular pyramid.<br><br><br> in.2
MariettaO [177]

Answer:

40 in²

Step-by-step explanation:

Surface area = 4 triangles + square

= 4[½ × 4 × 3] + 4²

= 4(6) + 16

= 40 in²

5 0
3 years ago
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Perform the indicated operation.<br><br> 11(-2)<br><br> 22<br> 9<br> -9<br> -22
ASHA 777 [7]

Answer:

<u>-22</u>

Step-by-step explanation:

When you multiply a positive and negative number together, it becomes negative.

Multiplication is repetitive addition.

11(-2) = -11 + -11 = -22

3 0
3 years ago
10, 9, 11, 8, 15, 18, 13<br> 1. Calculate the mean, median, and mode. Round to the nearest tenth.
adell [148]

Answer:

Median: 11

Mean: 12

Mode: none

Step-by-step explanation:

M A T H W A Y helps

Mode is something that is repeated multiple times

so

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3 years ago
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