Homework: Handout "Test Review Sheet" All problems. Click on Comments below this post for answers by Kayla and Naomi.
Test 1 is on Friday, September 19.
The test is the whole period and will include the following topics:
1. Evaluating algebraic expressions
2. Translation of english statements to algebraic expressions
3. Finding solutions sets for opens sentences for a given domain
4) Defining and recognizing the properties of real numbers.
5) Solve one and two step equations 6) Distribute terms in an expression
7) Combining terms of an an expressionRemember:
Math is knowledge, luck is Las Vegas
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2 comments:
me92 review test #1 by:kayla reyes
1.
3*2^2=12
2.
3(2^3)=24
3
2x+3
4.
2n-4
5.
2/x
6.
4)x*1=x
7.
3)-12
8.
2)x*1/x=1
9.
7a-3b
10.
7x-5
11.
2x^2-5x-1
12.
1
13.
2a
14.
x=9
15.
4)x-3
16.
x^2-8x+17
17.
5
18.
x=4
19.
x=12
20.
y=9
21.
x=7
22.
3/2
23.
c=2
24.
2m-2n
25.
3x-5
26.
xy^2=-147
27.
3)4x+15=6x-3
28.
-17
Naomi Hitrova Pd.9
Review Test #1: WORK+ANSWERS
1.)Substitute 3 for x and -2 for y.Multiply (-2)^2.Then multiply by 3. ANSWER: 12
2.)Substitute x for 2.Multiply (2)^3 first.Then multiply by 3: ANSWER:24
3.)2x+3
4.)2n-4
5.)2/X
6.) x*1=x
7.)Substitute 2 for x and -3 for y. Multiply(-3)^2 first. Then multiply by -3. ANSWER:-12
8.)x*1/x=1
9.)Group like terms.5a+2a+3b-6b.
ANSWER:7a-3b
10.)7x-5
11.)Group like terms. [ 2x^2-5x-1 ]
12.)Substitute (6) for x and (3) for y. Mulitiply denominator and numerator of 1/3 by 2. Then add.
answer: 1
13.)Combine like terms. 2a+0
14.)Substitute -3 for y.Divide both sides by 9. ANSWER: X=2
15.)x-3
16.)Group like terms.
answer:x^2 -8x+17
17.)PEMDAS. 120/24=5
18.)Distribute.Add 3 to both sides.Divide 6 on both sides. ANSWER: X=4
19.)Divide both sides by 2/3 OR multiplicative inverse.
ANSWER:X=18
20.)Subtract 2 from both sides. Multiply by 3 on both sides. ANSWER: Y=9
21.)Add 5 to both sides. Divide by 3 on both sides.
ANSWER: X=7
22.)Subtract 2 from both sides.Divide by 1/3 on both sides OR multiplicative inverse.
ANSWER:C=6
23.)Distribute.Subtract 6 from both.Divide by 3 on both.
ANSWER: C=12
24.) ?
25.)n=3x-5
26.)Substitiute -3 for x and -7 for y.
ANSWER:-147
27.) 4x+15=6x-3
28.)QUESTION IS CUT OFF
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