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kotegsom [21]
3 years ago
10

If a ⊥ b and b ∥ c, then _____

Mathematics
1 answer:
Tasya [4]3 years ago
3 0

Answer:  If a ⊥ b and b ║ c, then a ║c

Step-by-step explanation: I substituted a more legible symbol for parallel. I believe that is what the question means.

a will be perpendicular to any line that is parallel to b.

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If there are 9 girls and 11 boys in a class, what percentage of the class are girls
viva [34]
1. Find the total number of class members
    9 + 11 = 20

2. Find 9 as a percentage of 20
    9 / 20 = 0.45
    0.45 x 100 = 45%

<u>45% of the class are girls.</u>
6 0
3 years ago
10 • 1/10 =1 a) This is an example of the additive inverse property
saul85 [17]

Answer:

C) Multiplicative Inverse Property

Step-by-step explanation:

Because 1/10 is the inverse of 10.

For example, 15*(1/15)=1.

5 0
3 years ago
1. You are standing on top of a ridge using a clinometer trying to figure out how far your dog has wandered off in
olga_2 [115]

<u>Given:</u>

It is given that the ridge is 360 inches tall.

<u>Assumptions:</u>

Assume you are 170.1 cm tall which equals 67 inches tall, the height from your eye to the floor is 360+67 = 427 inches.

The distance from your eye level to the bottom of the ridge is 427 inches.

Assume the angle A is 60°.

<u>To find the distance from you to your dog.</u>

<u>Solution:</u>

A right-angled triangle can be formed where the angle is 60°, the distance between you and the dog is the hypotenuse of the triangle and your height from the floor is the adjacent side of the triangle.

Assume the hypotenuse of the triangle measures x inches.

To determine the length of the hypotenuse, we determine the cos of the angle.

cos \theta = \frac{adjacent side}{hypotenuse} .

cos A = \frac{427}{x} , x = \frac{427}{cos60} , cos60=0.5.

x=\frac{427}{0.5} = 854.

So if the ridge is 360 inches tall and you are 67 inches tall and the angle A is 60°, the distance between your dog and you is 854 inches.

3 0
3 years ago
....pls help me :((((((
Rina8888 [55]

Answer:

y= -7

Step-by-step explanation:

So first distribute the 8

4=8y+32-4y

now combine like terms (the -4y+8y)

4=32+4y

Subtract 32 on both sides to isolate 4y

-28=4y

now divide 4 on both sides to isolate Y

-7=y

so y= -7

5 0
3 years ago
HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Bezzdna [24]
The answer is option C. 9xy sqrt 2x
5 0
3 years ago
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