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3 years ago

SOMEONE PLEASE PLEASE HELP ME

Mathematics

2 answers:

slava [35]3 years ago

6 0

Answer:

taking cos

co62=b/h

cos 62=x/12

0.46947x12=x

so, x = 5.633

rounding off

x= 6

trasher [3.6K]3 years ago

5 0

Answer:

x = 6.0

Step-by-step explanation:

Formula For Cos: cos (angle°) = adjacent/hypotenuse

Angle = 62

Adjacent = x

Hypotenuse = 12

cos (angle) = adjacent/hypotenuse

cos (62) = x/12

0.67350716232 = x/12

0.67 = x/12 (Rounded to make further calculations simpler)

12(x/12) = 12(0.67)

x = 8.04

x = 6.0 (Rounded to nearest tenth)

Therefore, x = 6.0

Hope this helped! <3

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nirvana33 [79]

Answer:

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5 0

3 years ago

For which of the following equations are x = 5 and x = –5 both solutions?

Minchanka [31]

Short Answer B
Argument
A
A will give you x = +/- 5i
x^2 + 25 = 0
x^2 = - 25 Take the square root.
sqrt(x^2) = +/- sqrt(-25)
x = +/- (5)i which is a complex number.

B
Is the answer
x^2 = 25
sqrt(x)^2 = sqrt(25)
x = +/- 5

C
Can't be factored just by looking at it. You can show that C is not true just by putting 5 into the equation
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f(5) = 25 + 10*5 - 25
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C is not true.

D
D can be eliminated as C was
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6 0

3 years ago

Read 2 more answers

How many 100 make 3200?

Gelneren [198K]

32!

32 100s can go into the number 3200! Hope this helped!

4 0

3 years ago

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ankoles [38]

Answer:

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