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3 years ago

Find the value of x that satifies the equation sin (4x+14)° = cos (-3x + 73)°

Mathematics

2 answers:

daser333 [38]3 years ago

8 0

The answer is b, x=3

k0ka [10]3 years ago

8 0

Answer:

B - x=3

Step-by-step explanation:

This is because the angles that fit the equations is 26 and 64 .

26-14=12 for the first equation and 3 x 4=12 and 12+14

The second equation 73-64= 9 and -3 x 3 is -9 and 64-73=-9.

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a data set has a mean of 68 and standard deviation of 6. An element in this set is 51. What is z-score for 51? Round your answer

gogolik [260]

z = -2.83

<u>Explanation:</u>

Given:

Mean, μ = 68

Standard deviation, σ = 6

Data point, x = 51

Z score, z = ?

We know:

$z = \frac{data point - mean}{standard deviation} \\\\z = \frac{x - u}{p}$

Substituting the value we get:

$z = \frac{51-68}{6} \\\\z = -2.83$

A negative z score says that the data point is below average.

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3 years ago

How do you know weather the quotient of two integers will be a positive number

jeka57 [31]

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3 years ago

two lines intersect.One has gradient 4 and y-axis intercept 3. The other has gradient 6 and cuts the y-axis at (0,1). What is th

timurjin [86]

Answer:

(1, 7 )

Step-by-step explanation:

The equation of a line in slope- intercept form is

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Then the equations of the 2 lines are

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Substituting into (1)

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3 years ago

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slamgirl [31]

Answer:

slope = 0

Step-by-step explanation:

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myrzilka [38]

Answer:

It's D

Step-by-step explanation:

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3 years ago

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