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Ber [7]
3 years ago
7

Need help with number 3)

Mathematics
2 answers:
cestrela7 [59]3 years ago
7 0
Perpendicular means forming a right angle (90 degrees) so your answer would be 3 o’clock and 9 o’clock
DaniilM [7]3 years ago
5 0
Perpendicular means crossing so it would be a right angle. Therefore the 2 times will be

9:00 and 3:00

When the hour hand is at the 9 it will be perpendicular to the minute hand because they will be crossing paths if you extend the arms in both directions. The same with 3
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A line represented by y = 2x − 3 and a line perpendicular to it intersect at R(2, 1). What is the equation of the perpendicular
neonofarm [45]

Answer:

y = -1/2x + 2

Step-by-step explanation:

y = 2x - 3. The slope here is 2. A perpendicular line will have a negative reciprocal slope. To find the negative reciprocal, just flip the slope and change the sign.

slope = 2 or 2/1.....flip it.....1/2....change the sign...-1/2. So our perpendicular line will have a slope of -1/2.

y = mx + b

slope(m) = - 1/2

(2,1)....x = 2 and y = 1

now we sub and find b, the y intercept

1 = -1/2(2) + b

1 = -1 + b

1 + 1 = b

2 = b

so ur equation is : y = -1/2x + 2 <===

and u can check it with ur points....(2,1)

y = 2x - 3

1 = 2(2) - 3

1 = 4 - 3

1 = 1 (yep...it checks out)

8 0
3 years ago
The daytime high temperature on the moon can reach 130°C. The nighttime low temperature can get as low as −110°C. What is the di
maks197457 [2]

Answer:

240

Step-by-step explanation:

remember that to get from positive to negative you have to go from positive to 0 then to negative .

however the easiest way of solving this is

add both the values , ignore the sign

130 + 110

the difference in the temperature is :

= 240 degrees

7 0
3 years ago
In the accompanying diagram of parallelogram ABCD,diagonals AC and DB intersect at E, AE = 3x - 4, andEC = x + 12.What is the va
skelet666 [1.2K]

x = 8

Explanation:

AE = 3x - 4

EC = x + 12

SInce diagonals AC and DB intersect at E

it means the lines which meet at the intersection E are equal. A and C meet at E which gives AE and EC

AE = EC

3x - 4 = x + 12

collect like terms:

3x - x = 12 + 4

2x = 16

divide both sides by 2:

2x/2 = 16/2

x = 8

4 0
1 year ago
What is 9 x 9 x 9 x 9 x 9 x 9 x 9 in exponential notation
ikadub [295]

Answer:

9 to the 7th power

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Convert 0.19¯ to a fraction.
padilas [110]
The fraction would be \frac{19}{100}
I hope that helps!
19/100
7 0
3 years ago
Read 2 more answers
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