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3 years ago

15

Helppppppppppp pllleeasseee

2 answers:

Readme [11.4K]3 years ago

6 0

I think B is correct

Leno4ka [110]3 years ago

4 0

The answer is C because the formula for a right triangle is a^2 +b^2=c^2

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Use the drop-down menus to complete the solution to the equation cosine (startfraction pi over 2 endfraction minus x) = startfra

Lilit [14]

Use the drop-down menus to complete the solution to the equation cosine (start fraction pi over 2 end fraction minus x) = start fraction start root 3 end root over 2 end fraction for all possible values of x on the interval [0, 2pi].

Using trigonometric identities, the solution to the equation $cos(\frac{\pi }{2}-x) = \frac{\sqrt{3} }{2}$ for all possible values of x on the interval [0, 2π].

What are trigonometric identities?

Trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined.

$cos(\frac{\pi }{2}-x) = \frac{\sqrt{3} }{2} \\\\cos(x)cos\frac{\pi }{2}+sin(x)sin \frac{\pi }{2} = \frac{\sqrt{3} }{2}\\\\cos(x)(0)+sin(x)(1) = \frac{\sqrt{3} }{2}\\\\sin(x) = \frac{\sqrt{3} }{2}\\\\x = \frac{\pi }{3}, \frac{2\pi }{3}$

To learn more about trigonometric identities click here brainly.com/question/7331447

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6 0

1 year ago

The base area of a square-based prism is 25 ft squared. One of the lateral faces of the prism is 30 ft squared. What is the surf

deff fn [24]

Answer:

170 ft^2

Step-by-step explanation:

The surface area of a square prism is 2 times the base area + 4 times the area of a lateral face.

S=2(25)+4(30)

S=50+120

S=170

3 0

3 years ago

Every possible cross section of a three-dimensional figure is a circle. What is the figure?

Alex787 [66]

Any point or line, segment, ray, polygon etc.

6 0

3 years ago

Is the function given by f(x)equalsleft brace Start 2 By 2 Matrix 1st Row 1st Column one fourth x plus 1 comma 2nd Column for x

MArishka [77]

Answer:

C. The given function is continuous at x=4 because the limit is 2.

Step-by-step explanation:

Given the function:

$f(x)=\left\{\begin{array}{ccc}\frac{1}{4}x+1 &x\leq 4\\4x-11&x>4\end{array}\right$

We are to determine if the function is continuous at x=4.

For a function to be continuous at some value c in its domain:

f(c) must be defined.

$Lim_{x \to c}$ f(x)$ must exist.

$f(c)=Lim_{x \to c}$ f(x)$

Now: at x=4

$f(4)=\dfrac{1}{4}*4+1=2$

$Lim_{x \to 4}f(x)=2$

Since the two values are the same, we say that f(x) is continuous at x=4.

The correct option is C.

5 0

3 years ago

285y = 15 what’s the solution

lions [1.4K]

Answer:

$285y = 15\\y = \frac{15}{285}\\y = \frac{1}{19}$

Step-by-step explanation:

You have to divide the entire equation by 285 to get y alone.

Then, simplify the fraction to get 1/19.

7 0

4 years ago