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Vera_Pavlovna [14]
3 years ago
5

Find the measure of the angle. (final)

Mathematics
1 answer:
ivanzaharov [21]3 years ago
3 0

Answer:

39˚

Step-by-step explanation:

The whole thing is a right angle, and we know that because of the square thing at the top.

These two angles are complementary, so we can subtract 51 from 90.

90-51=39˚

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0.4 repeating as a fraction for a mixed number
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Answer:

Step-by-step explanation:

1.Rewrite the decimal number as a fraction with 1 in the denominator

2.Multiply to remove 1 decimal places. Here, you multiply top and bottom by 101 = 10

3.Find the Greatest Common Factor (GCF) of 4 and 10, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 2,

so the answer is

0.4= 2/5

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3 years ago
WHAT IS THE SURFACE AREA OF THE FIFURE?
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I think the correct answer is 560ft^2.
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Convert the polar expression of this complex number into its rectangular form:
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Answer:MARK BRAINLLEST MARK BRAINLLEST

(−5/2, 5/2√3)

<h2 />

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Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1 and the given zeros for
timama [110]
The general form of a polynomial is: x² + bx + c = 0. Substituting the roots,

3² + b(3) + c = 0
3b + c = -9 --> eqn 1

(5 + √5)² + (5 +√5)(b) + c = 0
(5+√5)b + c = -30-10√5 --> eqn 2

Solving both equations simultaneously by subtracting eqn 2 from eqn 1,
(-2 - √5)b = 21 + 10√5
b = -8 - √5

Using eqn 1,
3(-8 - √5) + c = -9
-24 - 3√5 + c = -9
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Hence, the polynomial is: <em>f(x) = x² + (-8 - √5)x + (15 + 3√5)</em>.
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3 years ago
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maw [93]

Answer:

y - Q =  -  \frac{1}{4}(x - P)

Step-by-step explanation:

Line g passes through (-2,6) and (-3,2).

The slope of line g is given by:

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Let's substitute the values to get:

\frac{2 - 6}{ - 3 -  - 2}= \frac{ - 4}{ - 1}  = 4

The equation that is perpendicular to line g will have a slope that is the negative reciprocal of 4.

i.e -1/4

If this line passes through (P,Q), then the equation is:

y - Q =  - \frac{1}{4} (x - P)

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