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IrinaVladis [17]
3 years ago
13

Please help me find the value of x

Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
3 0

Answer:

7

Step-by-step explanation:

(tangent)^{2} = AC × CB

 12^{2} = ( x + 9 ) 9

 144 = 9x + 81

 9x = 144 - 81

 9x = 63

 x = 63 ÷ 9

 x = 7

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What is the product 3x5(2x2+4x+1)
lesya692 [45]

Answer:

6x^7+12x^6+3x^5

Step-by-step explanation:

The given expression is:

3x^5(2x^2+4x+1)

We expand the parenthesis using the distributive property to obtain;

3x^5(2x^2)+3x^5(4x)+3x^5(1)

Recall that;

a^m\imes a^n=a^{m+n}

We apply this property and multiply out the constant terms to obtain;

6x^7+12x^6+3x^5

3 0
3 years ago
What's is the slope of this line?<br>Need this ASAP​
Basile [38]

Answer:

\displaystyle m=2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

Reading a Cartesian Plane

  • Coordinates (x, y)

Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (0, 3)

Point (1, 5)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [Slope Formula]:                                                             \displaystyle m=\frac{5-3}{1-0}
  2. [Slope] Subtract:                                                                                              \displaystyle m=\frac{2}{1}
  3. [Slope] Divide:                                                                                                  \displaystyle m=2
5 0
3 years ago
Please explain your answer
Ymorist [56]

Answer:

51

Step-by-step explanation:

11+(-7)^2-9 - original

11+49-9 - square the -7, since its in brackets the negative applies too and a negative x a negative = positive, so it ends up as 7x7+49

60-9 - add both positives 11+49=60

51 - subtract 9 from 60, 60-9=51

7 0
3 years ago
Suppose y is a positive integer.If x-(-y)=z will z be greater than x ?
alexira [117]

Answer:

Yes, <em>z</em> will be greater than <em>x.</em>

Step-by-step explanation:

Given expression is x- (-y)=z \ for \ y \ is \ a \ positive \ integer.

now let <em>y = 2 </em>and <em>x = 1</em>

Then, x- (-y)=z \\1+2 = 3 \\\\

where z> x i.e. <em>3 > 1</em>

on simplifying the given  expression in terms of y

y=z-x

now suppose if <em>x = 7 and z=3 </em>then,

y = (z-x) = (3-7) = (-4)

which gives value of y in terms of negative integer which is not possible according to the given statement since y is a positive integer. Therefore, if y is a positive integer then  z will be greater than x.

3 0
3 years ago
Read 2 more answers
A circle with radius of 2cm sits inside a 7cm×11cm rectangle. What is the area of the shaded region? Round your final answer to
olga2289 [7]

Answer:

64.43 cm2   :)

Step-by-step explanation:

look and download the file i gave to u

Download doc
7 0
4 years ago
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