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Topic: **How to write an expression in standard form****Question:**
HELP ME WITH MATH! 30 POINTS FOR BEST ANSWER! 72 PROBLEMS OUT OF 215! AT LEAST DO A FEW! THANKS :)
State whether each number is divisible by 2,3,5,9, or 10.
1. 36
2. 100
3. 270
4. 84
5. 555
6. 49
List all the factors of each number.
7. 16
8. 30
9. 41
10. 23
11. 55
12. 64
Simplify each expression (if a single number is in parenthesis, it is an exponent).
13. 5(3)
14. 2(0) x 2(3)
15. 3(2) + 3(3)
16. 4(2) x 1(3)
17. -9(2)
18. (7 - 6)(4)
19. -2(3 + 2)(2)
20. -6(2) + 6
Writing in Math.
21. A number written in scientific notation is doubled. Must the exponent of the power of 10 change? Explain.
Evaluate for a = -2 and b = 3 (if a single number is in parenthesis, it is an exponent).
22. (a x b)(2)
23. a(2)b
24. b(3) x b(0)
25. (a + b)(5)
26. b(2) - a
27. 2(a(2) + b(3))
Is each number prime or composite? For each composite number, write the prime factorization.
28. 24
29. 17
30. 42
31. 54
32. 72
33. 100
Find the GCD (if a single number is in parenthesis, it is an exponent).
34. 56, 96
35. 36, 60
36. 14, 25
37. 15x, 24x(2)
38. 14a(2)b(3), 21ab(2)
Simplify (if a single number is in parenthesis, it is an exponent).
39. 4/16
40. 44/52
41. 15/63
42. a(3)/a(2)
43. 5b(4)/b
44. 8m(4)n(2)/40mn
Graph the numbers on the same number line.
45. 1/10
46. -0/3
47. -1/2
48. 1
49. You have an 18-ft metal pipe. How many cuts must you make to cut the pipe into 2-ft-long pieces?
Evaluate for x a = 4 and y = -3. Write in simplest form (if a single number is in parenthesis, it is an exponent).
50. 2y/x(2)
51. xy/5x
52. (x + y)(3)/x
53. x + 3y/10
54. y(2) - x/5
55. x - y/x + y
Simplify each expression (if a single number is in parenthesis, it is an exponent).
56. a(4) x a
57. (y(3))(6)
58. x(3) x x(6) x y(2)
59. (a(3))(2)
60. 6b(7) x 5b(2)
61. 9(8)/9(2)
62. 6a(7)/15a(3)
63. b(8)/b(11)
64. 2x(2)y(5)/8x(3)y(5)
Write each number in scientific notation.
65. 43,000,000
66. 6,000,000,000
67. 0.0000032
68. 0.00000000099
Write each number in standard notation (if a single number is in parenthesis, it is an exponent).
69. 5 x 10(5)
70. 3.812 x 10(-7)
71. 9.3 x 10(8)
72. 1.02 x 10(-9)
Order from least to greatest (if a single number is in parenthesis, it is an exponent).
73. 3 x 10(10), 742 x 10(7), 0.006 x 10(12)
74. 85 x 10(-7), 2 x 10(-5), 0.9 x 10(-8)
Multiply. Express each result in scientific notation (if a single number is in parenthesis, it is an exponent).
75. (3 x 10(10)) (7 x 10(8))
76. (8.3 x 10(6)) (3 x 10(5))
THANK YOU :)

June 17, 2019 / By Jedida

it took him 3 hrs. first you're taking how lots it fee him, 241.ninety 5 and subtract how lots the factors fee, one hundred fifteen.ninety 5.. That leaves you with 126.00 then you definitely divide 126 by utilising forty two to work out what share hours it took him that's 3.

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In geometry, a coordinate system is a system which uses one or more numbers, or coordinates, to uniquely determine the position of a point or other geometric element.[1][2] The order of the coordinates is significant and they are sometimes identified by their position in an ordered tuple and sometimes by a letter, as in 'the x-coordinate'. In elementary mathematics the coordinates are taken to be real numbers, but in more advanced applications coordinates can be taken to be complex numbers or elements of a more abstract system such as a commutative ring. The use of a coordinate system allows problems in geometry to be translated into problems about numbers and vice versa; this is the basis of analytic geometry. An example in everyday use is the system of assigning longitude and latitude to geographical locations. In physics, a coordinate system used to describe points in space is called a frame of reference. In mathematics, the origin of a Euclidean space is a special point, usually denoted by the letter O, used as a fixed point of reference for the geometry of the surrounding space. In a Cartesian coordinate system, the origin is the point where the axes of the system intersect. In Euclidean geometry, the origin may be chosen freely as any convenient point of reference. The most common coordinate systems are two-dimensional (contained in a plane) and three-dimensional (contained in a space), composed of two and three perpendicular axes, respectively. The origin divides each of these axes into two halves, a positive and a negative semiaxis. Points can then be located with reference to the origin by giving their numerical coordinates—that is, the positions of their projections along each axis, either in the positive or negative direction. The coordinates of the origin are always all zero, for example (0,0) in two dimensions and (0,0,0) in three. The origin of the complex plane can be referred as the point where real axis and imaginary axis intersect each other. In other words, it is the point representing 0 + 0i. A set is a collection of distinct objects, considered as an object in its own right. Sets are one of the most fundamental concepts in mathematics. Developed at the end of the 19th century, set theory is now a ubiquitous part of mathematics, and can be used as a foundation from which nearly all of mathematics can be derived. In mathematics education, elementary topics such as Venn diagrams are taught at a young age, while more advanced concepts are taught as part of a university degree. in mathematics, the natural numbers are the ordinary whole numbers used for counting ("there are 6 coins on the table") and ordering ("this is the 3rd largest city in the country"). These purposes are related to the linguistic notions of cardinal and ordinal numbers, respectively (see English numerals). A more recent notion is that of a nominal number, which is used only for naming. Whole Numbers are simply the numbers 0, 1, 2, 3, 4, 5, … (and so on)

1. To solve the equation for y, you need to get y by itself. 3x - 2y = -7 -2y = -7 - 3x 2y = 7 + 3x y = 7/2 + 3/2x Now to find the value of y for the given x-value 3, just plug 3 into where x should be. 3(3) - 2y = -7 9 - 2y = -7 -2y = -7 - 9 2y = 7 + 9 2y = 16 y = 8 2. Slope intercept form is y = mx + b. 6x - 3y = 18 -3y = -6x + 18 3y = 6x - 18 y = 2x - 6 It's in slope intercept form. In the formula y = mx + b, m represents the slope, and b represents the y intercept. So, the slope is 2, and the y intercept is -6. (0, -6) 3. The point-slope form is a good formula to use when you only have one point and the slope. The formula is: y - y1 = m(x - x1) M represents the slope, y1 represents the y integer, and x1 represents the x integer. This is the point slope form: y - 5 = -9(x - 3) y - 5 = -9x + 27 This is the slope-intercept form: y = -9x + 32 4. They are parallel. 5. They are perpendicular. 6. The line will be dotted. When you have this symbol, <, or this symbol, >, the boundary line is ALWAYS dotted. When you have this symbol ≤, or this symbol, ≥, the boundary line is ALWAYS solid. The equation has this symbol, >, so the boundary line is dotted. When the line is dotted, that means that points on that line make the inequality false. When the line is solid, the values on the boundary line make the inequality true. So the equation 3x - 5y > 15 has a dotted boundary line, and the values on the boundary line make the inequality false. 7. To find the y intercept, substitute 0 for x, and vice verca. 4(0) - 3y = -24 0 - 3y = -24 -3y = -24 y = 8 4x - 3(0) = -24 4x - 0 = -24 4x = -24 x = -6 So the y intercept is 8 and the x intercept is -6.

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