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mafiozo [28]
3 years ago
10

Guys pls help me!!!!!!!

Mathematics
2 answers:
bogdanovich [222]3 years ago
4 0

Answer:

5.

Step-by-step explanation:

9y - 6 + 51 = 90

9y + 45 = 90

9y = 45

y = 5.

KIM [24]3 years ago
3 0
The answer is y is equal to 5.


The symbol in the corner tells us that the corner is 90 degrees. So much sides added together is 90.
9y - 6 + 51 = 90
9y + 45 = 90
9y = 45
y = 5
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HELP GIVING BRAINIEST
iren [92.7K]

Answer:

m<ACD = 50^{o}

Step-by-step explanation:

From the question given, ΔACD is a right angled triangle. Then we can apply one of the properties of a triangle to it.

In the triangle ACD:

<ACD + <DAC + <ADC = 180 (sum of angles in a triangle)

<ACD + 40 + 90 = 180

<ACD + 130 = 180

<ACD = 180 - 130

<ACD = 50^{o}

With the application of the property of the sum of interior angles of a triangle, the measure of <ACD is 50^{o}.

3 0
3 years ago
Name the property the equation illustrates 8 x 1/8 = 1
earnstyle [38]

Answer:

identity property

Step-by-step explanation:

the identity proper is where any number times 1 is equal to itself

5 0
3 years ago
F(x) = x4/5(x − 6)2 find the critical numbers of the function
Fiesta28 [93]
You can find the critical numbers by finding the derivative of the function and solving for 0.

F(x) = x(4/5)(x-6)(2) = x(8/5)(x-6) = (8/5)(x^2 - 6x)

Taking the derivative:
F'(x) =  (8/5)(2x - 6)
F'(x) = 0 at x = 3, 

critical number = 3
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3 years ago
A researcher posts a magazine advertisement offering $30 in exchange for participation in a short study. The researcher accepts
matrenka [14]
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7 0
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Read 2 more answers
What ia cos 16°? Please help me
LuckyWell [14K]

This is a terrible question. Send the publisher a nasty note.

First let's answer the question.

Cosine is adjacent over hypotenuse, so the cosine of the angle labeled 16 degrees is 24 (the adjacent side to 16 degrees) divided by 25 (the hypotenuse).

Answer: 24/25

---------

Now I'm going to complain about the question.  24/25 is of course 0.96 exactly, while

cos 16° ≈ 0.96126169593831886191649704855706487352569

They're not the same, and never think 24/25 is the cosine of 16 degrees.  It's approximately the cosine of 16 degrees; there's a big difference.

The cosine of 16 degrees is some awfully complicated algebraic number, a zero of some high degree polynomial with integer coefficients.  Worse yet, the angle whose cosine is 24/25 is almost certainly a transcendental number, not the zero of any such polynomial.

Trigonometry as practiced forces approximations to be employed.  Let's not sweep that under the rug in the questions, please.

5 0
3 years ago
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