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mariarad [96]
3 years ago
15

Expression

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0
The value of the expression is -24

This is because you distribute the -4 to both of the values in the parenthesis like this:
-4(7) + -4(-1)
This can be simplified to:
-28 + 4
Which equals -24
Hope this helps!
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Help I'm not sure if this is the answer?<br><br> (This question is about trigonometric ratios)
dem82 [27]

9514 1404 393

Answer:

  (b) 15.32

Step-by-step explanation:

You can use your triangle sense to answer this.

The side x will always be shorter than the hypotenuse, 20. This eliminates the last two choices.

If the angle is 45°, then the sides are equal at about 0.707 times the length of the hypotenuse. That would make them 0.707×20 = 14.14. Since the angle is greater than 45°, the opposite side will be greater than 14.14. Only one answer choice fits between 14 and 20: the second choice -- 15.32.

__

The mnemonic SOH CAH TOA reminds you of the relation ...

  Sin = Opposite/Hypotenuse

  sin(50°) = x/20

  x = 20×sin(50°) . . . . multiply by 20 to find x

  x ≈ 15.32 . . . . . . . . . use your calculator to evaluate

__

The attachment is intended to show how the triangle side lengths change with angle.

3 0
2 years ago
What numbers add to 21 but equal 472
Anastaziya [24]
Hey there,

All we have to do is 472-21=451

So your number would be 451
8 0
3 years ago
Read 2 more answers
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sp2606 [1]
The correct answer is is y=2x
7 0
2 years ago
Help please it would be very much appreciated!!!!!! <br> thank you
sammy [17]
Should be a!

26^2 - 22^2 = 192, take the sqrt of that C:
5 0
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almond37 [142]

The answer is D, (1/3, 4).

Hope this helped!


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