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Anestetic [448]
3 years ago
13

Please help, super confused!

Mathematics
2 answers:
Gala2k [10]3 years ago
7 0

Answer:

it is B

Step-by-step explanation:

dedylja [7]3 years ago
5 0
This would be B , hope this helps
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Please answer these 6 problems. Find the missing side to nearest tenth.
Vinil7 [7]
Since these are right triangles you can use the pythagorean theorem
a² + b² = c² 
a = one leg of the triangle
b = the other leg of the triangle
c = the hypotenuse

1. 4² + 3² = c²
   16 + 9 = c²
   25 = c²
  √25 = √c²
    5 = c
    c = 5cm

2. 5² + 12² = c²
    25 + 144 = c²
    169 = c²
    √169 = √c²
     13 = c
      c = 13in

4. 7² + 9² = c²
    49 + 81 = c²
    130 = c²
    √130 = √c²
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5. a² + 10² = 15²
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4 0
3 years ago
Read 2 more answers
Find the supplement of 75
MA_775_DIABLO [31]

Answer:

180-75=105

The answer is 105

good luck

3 0
3 years ago
What is the differentiation of 2cos2x
garri49 [273]

2cos2x=y

dy/dx(2cos2x)=-4sin2x

d/du cosu= u'×cos'u=-u'×sinu

d/du sinu= u'×sin'u= u'×cosu

d/du tanu = u'×(1+tan²u)

d/du cotu = u'×-(1+cot²u)

proof for cosu :

cos2x= 1-2sin²x

or 2cosx²-1

or cos²x-sin²x

we will one of this fro example let's take the first one

d/dx 1-2sin²x=0-2×2(sinx)×cosx=-2sin2x

and we have 2 in the begining so its -4sin2x

3 0
3 years ago
X^2 -10x = 8 solve show work
likoan [24]

Answer:

Step-by-step explanation:

X^2-10x-8=0

Solve simultaneously

8 0
3 years ago
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Please I really need help!​
Black_prince [1.1K]

6+5+11+15=37

so she sold 37 cups of lemonade in 4 hours

3 0
4 years ago
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