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mezya [45]
3 years ago
14

Use the diagram and the value of x to find the measures of BCE and ECF.

Mathematics
1 answer:
stepan [7]3 years ago
7 0

Answer:

125° and 55°

Step-by-step explanation:

∠ BCE and ∠ ECF are adjacent angles and are supplementary, thus

10x + 15 + 5x = 180, that is

15x + 15 = 180 ( subtract 15 from both sides )

15x = 165 ( divide both sides by 15 )

x = 11

Thus

∠ BCE = 10x + 15 = 10(11) + 15 = 110 + 15 = 125°

∠ ECF = 5x = 5(11) = 55°

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Find zeros and y intercept of each function algebraically f(x)=x^3-10x^2+24x
monitta

Answer:

The zeros are 0, 4, 6.

The y-intercept is 0.

Step-by-step explanation:

f(x) = x^3 - 10x^2 + 24x

x^3 - 10x^2 + 24x = 0

x(x^2 - 10x + 24) = 0

x(x - 4)(x - 6) = 0

x = 0 or x - 4 = 0 or x - 6 = 0

x = 0 or x = 4 or x = 6

y-intercept:

Since x = 0 is a root, that means that the point (0, 0) is part of the function. That makes the y-intercept 0.

You can also solve for the y-intercept by letting x = 0 in the function and solving for f(0).

Let x = 0.

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f(0) = 0

y-intercept: 0

5 0
3 years ago
I don’t understand this at all
Mnenie [13.5K]

Answer:

B = 61.0

Step-by-step explanation:

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sin theta = opp side/ hypotenuse

sin B = 7/8

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To the nearest tenth

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5 0
2 years ago
What is the answer and how do I solve it?
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Solve this for x.  One way to do this would be to cross-multiply, obtaining 12x = 35, and solving this result for x.  x will be a fraction.  Write the numerator and denominator in the boxes given.
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What is the square root of 7?
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Step-by-step explanation:

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