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Anton [14]
3 years ago
12

In an SLR camera, photographers look from the viewfinder through which of the following?

Mathematics
1 answer:
Marina86 [1]3 years ago
4 0
Which of what following? please attach a multiple choice picture, or anything that could help
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What is the cosine of angle F <br><br>A. 4/5<br>B. 3/4<br>C. 5/4<br>D. 3/5​
saveliy_v [14]

Answer: option D

Step-by-step explanation:

Remember the cosine identity:

cos\alpha=\frac{adjacent}{hypotenuse}

Given the right triangle DFE shown in the image, you can identify that the adjacent side and the hypotenuse for the angle F of this triangle are:

adjacent=15\\hypotenuse=25

Now you can substitute values into  cos\alpha=\frac{adjacent}{hypotenuse} and then reduce the fraction.

THerefore you get:cos(F)=\frac{15}{25}\\\\cos(F)=\frac{3}{5}

6 0
3 years ago
Read 2 more answers
Solve.
Pavlova-9 [17]

Answer:

  (2, -3)

Step-by-step explanation:

Apparently, the equations are supposed to be ...

  • 4x +y = 5
  • 3x +y = 3

The solution for x can be found by subtracting the second equation from the first:

  (4x +y) -(3x +y) = (5) -(3)

  x = 2 . . . . . . . matches the second answer choice

Y can be found from either equation:

  y = 5 - 4x . . . . . subtract 4x from the first equation

  y = 5 -4(2) = -3

The solution is (x, y) = (2, -3).

7 0
3 years ago
Find the x-coordinate of Q' after Q(-2. 5) was reflected over the line y = -x + 4.
Alina [70]
Oh hello thereeeeeeee
3 0
3 years ago
Laura kept a list of her expenses and income for one month. If she started the month with no money, how much money did she have
Alisiya [41]

Answer:

$25

Step-by-step explanation:

she received$12 five times

12×5=60 ...(1)

she earned$5 two times for yard work

5×2=10....(2)

(1)+(2).... 60+10=70

Bought dog food and ticket

30+15=45

70-45=25

Answer $25 is what she is left with at the end of the month

5 0
3 years ago
Read 2 more answers
If 20% of a = b, then b% of 20 is the same as:
OlgaM077 [116]

Answer:

the answer is d

Step-by-step explanation:

d

8 0
3 years ago
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