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Marina86 [1]
3 years ago
12

Et aussi surtout : (4-√2)(4+√2)

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

8

Step-by-step explanation:

J'espère que cela t'aides! si c'est le cas, puis-je avoir un brainliest ?

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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
What number is 2 more than the 1/4 mechanic code of 133
Luda [366]
I think you just do 133/4 -2 unless I’m mistaken
5 0
3 years ago
Carl ran around the track 3 more times than Daria and 2 fewer times than Erin. When they were done they added up the number of l
Paul [167]

Answer:

Total laps = 10d

Step-by-step explanation:

Let c = Carl's laps

d = Daria's laps

e = Erin's laps

c = 3d

c = e/2

c + d + e = totals laps

We can insert 3d in place of c in the third equation

3d + d + e = total laps

Also, e/2 equals 3d

e/2 = 3d

Multiply both sides by 2

(e/2 = 3d)2

e = 6d

Insert the new e

3d + d + 6d = 10d = totals laps

3 0
3 years ago
Please help me solve this problem
Irina18 [472]

DF is half of AC, so DF=25

7 0
3 years ago
15+21= in distributive property to factor out the greatest common factor
ASHA 777 [7]

Answer:

So the greatest common factor 15 and 21 is 3.

Step-by-step explanation:

5 0
3 years ago
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