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hjlf
3 years ago
8

Cos(45-150) exact answer

Mathematics
1 answer:
victus00 [196]3 years ago
7 0
The answer is - \frac{ \sqrt{6}- \sqrt{2}}{4}
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Write an equation of the line that is perpendicular to y = 1/2
atroni [7]

Answer:

the equation of the line that is perpendicular to y = 1/2x + 3 and passes through the point (10, -5)

= -5 = -2x + 15

Step-by-step explanation:

Write an equation of the line that is perpendicular to y = 1/2x + 3 and passes through the point (10, -5).

Using the slope intercept equation,

y = mx +c

m = slope = 1/2

For two lines to be perpendicular, the product of their slopes is -1

Let the slope of the other line be m2

m1×m2 =-1

1/2×m2 = -1

m2 = -1/(1/2) = -2

Slope of line = -2

For points (10, -5), x = 10, y =-5

-5 = -2× 10 +c

-5 = -20+ c

c = -5+20= 15

the equation of the line that is perpendicular to y = 1/2x + 3 and passes through the point (10, -5)

-5 = -2x + 15

6 0
3 years ago
Find the theoretical probability of rolling a number cube labeled 1-12 and<br> it landing on 7.
Rashid [163]

Answer:

1/12

Step-by-step explanation:

There are 12 sides, and 7 is one of them. Therefore, there is a 1/12 chance of it landing on that side if it is a fair cube.

3 0
3 years ago
Unit 17- calculations
OLEGan [10]

What exactly is your question?

4 0
3 years ago
Read 2 more answers
Tesfa is x years old. his father is 4 times as old as Tesfa. Her mother is 7 years younger than his father. If their three ages
4vir4ik [10]

tesfa = x

dad = 4x

mom= 4x-1

x+4x+4x-1=101

9x+1=101

9x=100

100/9= 11.1

6 0
3 years ago
The left and right page numbers of an open book are two consecutive integers whose sum is 389.  Find these page numbers
Nadya [2.5K]

Step-by-step explanation:

Maybe the page numbers can be 143 and 246

143 + 246 = 389

8 0
3 years ago
Read 2 more answers
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