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ale4655 [162]
4 years ago
15

Can someone please help find X.

Mathematics
1 answer:
Vera_Pavlovna [14]4 years ago
4 0

Answer:

  32°

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that the trig function relating angles to the opposite and adjacent sides of the triangle is ...

  Tan = Opposite/Adjacent

The side opposite the angle x is shown as having measure 5; the side adjacent has measure 8. Putting all this in the above equation gives ...

  tan(x) = 5/8

To find the angle from the value of the tangent, you use the inverse of the tangent function. The name of that is the <em>arctangent</em> function. It is often written as tan⁻¹(x) and often accessible on your calculator using a "second function" key. Some calculators, like the one shown in the attachment, recognize the arctan function name.

  x = arctan(5/8) ≈ 32°

The value of x rounded to the nearest whole degree is 32°.

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How do I solve this?
LenKa [72]

Answer:

63

Step-by-step explanation:

Follow PEMDAS, as well as the left -> right rule.

Note that PEMDAS is the order of operations in which you should solve, and =

Parenthesis

Exponents (& roots)

Multiplication

Division

Addition

Subtraction.

First, look at the problem. The problem gives you:

42 ÷ 2 x (11 - 8)

Using PEMDAS, first, solve the parenthesis:

11 - 8 = 3

Next, use the left -> right rule to solve the rest.

42 ÷ 2 x 3

(42 ÷ 2) x 3

(21) x 3 = 63

63 is your answer.

~

8 0
3 years ago
Read 2 more answers
Desperately need help
maxonik [38]

\begin{cases} x=-5\implies &x+5=0\\ x=3\implies &x-3=0 \end{cases}\qquad \implies \underline{a(x+5)(x-3)~~ = ~~\stackrel{0}{y}} \\\\\\ \stackrel{\textit{we also know that}}{P(0)=-30}\implies \begin{cases} x=0\\ y=-30 \end{cases}\implies a(0+5)(0-3)~~ = ~~-30 \\\\\\ a(5)(-3)=-30\implies -15a=-30\implies a=\cfrac{-30}{-15}\implies \boxed{a=2} \\\\[-0.35em] ~\dotfill\\\\ 2(x+5)(x-3)=y\implies 2(\stackrel{F~O~I~L}{x^2+2x-15})=y\implies \underline{2x^2+4x-30=y}

Check the picture below.

8 0
3 years ago
There are twenty classes at each of two middle schools. The number of students in each class at each school is shown in the dot
Slav-nsk [51]

Answer:There are about 2 more students in each class at Oak Middle School than at Poplar Middle School.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Sorry again what is 9,576,297 in word form
belka [17]

Answer:

Nine-million,five hundred seventy-six thousand, two hundred ninety-seven

6 0
3 years ago
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the
jonny [76]

Answer:

x = $36 , y = $ 838

Step-by-step explanation:

Solution:-

The company makes a profit of $y by selling widgets at a price of $x. The profit model is represented by a parabola ( quadratic ) equation as follows:

                       y = -x^2 + 72x -458

We are to determine the profit maximizing selling price ( x ) and the corresponding maximum profit ( y ).

From the properties of a parabola equation of the form:

                      y = ax^2 + bx + c

The vertex ( turning point ) or maximum/minimum point is given as:

                     x = -\frac{b}{2a} \\\\x =  -\frac{72}{-2} = 36

The profit maximizing selling price of widgets would be x = $36. To determine the corresponding profit ( y ) we will plug in x = 36 in the given quadratic model as follows:

                    y ( 36 ) = - ( 36 )^2 + 72 ( 36 ) - 458\\\\y ( 36 ) = -1296 + 2592 - 458\\\\y ( 36 ) = 838

The maximum profit would be y = $838

4 0
3 years ago
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