crct review. what type angles are 3 and 6? 12 34 56 78
TRANSCRIPT
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CRCT Review
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What type angles are 3 and 6?
1 2
3 45 6
7 8
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Solve for x.
4x + 12
64
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Solve for x.
86x
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What are the coordinate of A’ if the figure is rotated 90 degrees clockwise
about the origin?
A
B C
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What are the coordinate of C’ if the figure is reflected across the y axis?
A
B
C
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What would the coordinates of point (4, 9) become with a 400%
dilation?
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What are the coordinate of B’ if the figure is translated 5 units left and 2
units down?
A
BC
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What is the scale factor of
(7x + 2, 7y – 2) ?
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Solve.
2 + 14z = -8 + 9z
3(x + 1) – 1 = -4x + 36
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Rational or Irrational and Why???
9.64210578……
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Evaluate 16²
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Between which two whole numbers does √138 lie?
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Estimate √112 to the nearest tenth.
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Draw a number line and locate √11
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Rational or Irrational?
√8
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Rational or Irrational?
√16
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Rational or Irrational?
.6565
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Write 890,000,000 in scientific notation.
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(3 x 10⁴)(6 x 10⁻⁷)
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9 x 10⁹3 x 10⁴
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What is the value of n in
b¹⁶b⁵
= bⁿ
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What is the value of n in
(3³)⁴ = 3ⁿ
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What is the value of n in
5² · 5⁸ = 5ⁿ
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Evaluate.
9² - 3²
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Solve.
-5² + -2² + (-4²)
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Find c in the right triangle.
8 cm
5 cm
c
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A 30 foot tree is leaning against a house. The base of the tree is 12 feet from the bottom of
the house. How far up the house does the tree touch? Estimate your answer to the
nearest tenth.
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Is this a right triangle?
5ft, 8ft, 12ft
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Find the distance between (3,6) and (5, 2).
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Find the distance between(-4, -6) and (-1, -2)
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Find the volume of a cylinder with a radius of 4cm and a height of 8cm.
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Find the volume of a cone with a diameter of 8cm and a height of 14cm.
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Find the volume of a sphere with a radius of 5 inches.
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What is the maximum length a golf club can be, if it has to fit inside a box with dimensions
of 18 inches x 12 inches x 10 inches?
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Solve.
3(x + 1) – 1 = -4x + 36
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³√27
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Change 3,460,000,000 to scientific notation
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Change to standard form
8.651X 10 ⁵8.932 X 10 ⁻⁴
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Determine the slope(-8,9) (-4,-2)
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Determine the slope:
X Y
6 8
3 10
0 12
-3 14
-6 16
-9 18
-12 20
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Determine the slope and y-intercept:
Y= -9xY= 1/3x -3Y= -x +7Y= -2/3 x +7
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Solve the system of equations:
2x +8y=6-5x -20y= -15
2x= -3y+33x= -y+12
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Are the following functions?
(9,-8) (3,3) (-3,7) (-9,2) (0,7)
(-7,2) (-9,2) (-8,2) (0,2) (6,2)
(1,5) (3,5) (1,-6) (8,0) (2,-2)
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Simplify
7x⁶y⁹z⁴----------------------
21 x⁹y⁵z⁴
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Determine if each relationship would be expected to show a positive, negative, or no correlation.
• Level of education and income earned ____________________________
• Shoe size and income earned ____________________________ • Heating bill and temperature outside ____________________________
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An outlier is…• A data point that is not in the general pattern.• Any data point that is repeated.• The point on a scatter plot with the largest y-
value.• Any data point on a scatter plot that shows a
change in direction.
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Write an equation for this line of best fit:
Predict the amount of money raised if there were 100 sponsors.
Predict the number of sponsors if $1200 was raised.
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5/7 to a decimal9/11 to a decimal
3.67 to a fraction6.82 to a fraction.91 to a fraction
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Number of Doughnuts Cost
2 $3.50
4 $7.00
6 $10.50
8 $14.00
What is the unit rate?
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What is the slope?Number of Scarves Cost
4 $22.00
8 $44.00
12 $66.00
16 $88.00
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Linear Vs. Nonlinear
Create a nonlinear: equation, table, and graph
Create a linear: equation table and graph
What are the characteristics of a linear table, graph, and equation?
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Solve the following algebraically:
6x-5y=-3 -4x+y=2-4x+y=-5 8x-2y=-4
9x-8y=-6 3x-4y=0X= 3y-7 7x+4y=0
x=-y-84x+4y=-8
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Is this a function?X Y
0 8
2 6
4 4
2 2
0 0
2 -2
4 -4
x Y
1 5
2 5
3 5
4 5
5 5
6 5
7 5
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Is this a function?
234567
-2-4-6-8
-10
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-2-5-8
-11-15
23
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Which is a function and why?
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What is the rate of change of each?x Y
5 -7
7 -6
9 -5
11 -4
13 -3
Y=-4/5x+7
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Make THREE observations about this data:
Boys Girls Total
Play Daily 45 12 57
Do Not Play Daily 5 38 43
Daily 50 50 100
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Create a relative frequency table by rows and then create a relative frequency table by columns:
6th grade 7th grade 8th grade Total
Home Language :English
104 99 116 319
Home Language:Not English
56 81 84 221
Total 160 180 200 540
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Is it possible to have interior angles of a triangle be:
• 45,55,80• 30,60,100• 12,84,84
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Determine the missing angle of the triangle:
• 48,60,x• 34,72,x• 90,42,x
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Solve for x
32
28 ? x
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Solve
A company stacks three of the same large boxes and two of the same small boxes to a height of 11 feet. It also stacks three large boxes and one small box to a height of 7 feet. What are the heights of the small box and the large box?
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Change to slope intercept form
-3x-y=14
-70-7y=-3x
3y-6x=18
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Graph -2y+3x= 10
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What kind of correlation is this?
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What kind of correlation is this?
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Solve
3(x+1)= 5x+3 -2x
3x-2+2x-4= 5(x-1)