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dimaraw [331]
3 years ago
15

What is the value of x?

Mathematics
1 answer:
Vikentia [17]3 years ago
5 0
Sinx = cos19
sinx = 0.9455...
sin^-1(0.9455...) = 71

The answer is 71 degrees 
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Q 5 please help me to resolve
liraira [26]

Put 15 where n is, then do the arithmetic.

b(n) = 6n . . . . . . . . . . . the formula for the number of bulbs for n chandeliers

b(15) = 6·15 = 90

The appropriate choice is ...

... 90 light bulbs

7 0
4 years ago
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\250 doctors from three countries in Europe meeting in a conference to decide whether to approve a new vaccine for the flu. Amon
Bezzdna [24]

Answer:

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

Step-by-step explanation:

(a) What is the probability that a randomly chosen doctor is in favor of the vaccine

75% of 115/250 = 0.46(German).

60% of 65/250 = 0.26(French).

65% of 70/250 = 0.28(Englishmen). So

p = 0.75*0.46 + 0.6*0.26 + 0.65*0.28 = 0.683

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

8 0
3 years ago
Which expressions are equivalent to 2^5/6^5
yanalaym [24]

Answer:

B:: 3^-5

Step-by-step explanation:

7 0
3 years ago
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What is the solution to the inequality -8x + 4 < -4?
never [62]

Answer:

x > 1

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

-8x + 4 < -4

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Subtract 4 on both sides:                    -8x < -8
  2. Divide -8 on both sides:                       x > 1

Here we see that any value <em>x</em> greater than 1 would work as a solution.

6 0
3 years ago
What's meant by the derivative of a function ?!
chubhunter [2.5K]
Measures how quickly the position of the object changes when time advances.
The derivative of a function of a single variable at a chosen input value, when it exists, is the slope of the tangent line to the graph of the function at that point. The tangent line is the best linear approximation of the function near that input value
5 0
3 years ago
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