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Sergio [31]
3 years ago
10

Simplify: 10 - 2(3+4)*

Mathematics
1 answer:
melomori [17]3 years ago
8 0

Answer:  -4

Step-by-step explanation:

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If f(x+5)=x^+kx+30,k=
Vilka [71]

30 divided by 5 is 6, so the other term is (x+6). (x+5)(x+6) becomes x^2+11x+30, so k is equal to 11.


5 0
3 years ago
Find the value of tanθ, if cosθ = 4/5 ; 0° ≤ θ< 90°
Montano1993 [528]

Answer:

  • 3/4

Step-by-step explanation:

<u>Given </u>

  • cosθ = 4/5
  • 0° ≤ θ < 90°

<u>In the first quadrant both sine and cosine are positive, so as tangent.</u>

  • tanθ = sinθ / cosθ =
  • \sqrt{1 - cos^2}θ / cosθ =
  • \sqrt{1 - (4/5)^2} / 4/5 =
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4 0
3 years ago
Which pair of events is a dependent event?
Svetradugi [14.3K]

c is the answer

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7 0
3 years ago
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A square rug measures 8 feet by 8 feet. find the diagonal distance of the rug to the nearest whole number
Tanzania [10]
This is a right angle triangle and you use the Pythagorean theorem to solve for the hypotenuse (the diagonal)

A^2 + B^2 = C^2
8^2 + 8^2 = C^2
64 + 64 = C^2
128 = C^2
C = square_root (128)
C = 11 (to the nearest whole number)

The diagonal is 11 feet (to the nearest whole number)
7 0
3 years ago
Convert 45/10 into a mixed number
Maksim231197 [3]

Answer:

4 5/10

Step-by-step explanation:

Divide. You will have a remainder. Put the remainder over the denominator:

45/10 = 40/10 + 5/10 = 4 5/10

4 5/10 is your answer.

~

7 0
3 years ago
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