2x^2 + 8 - 4x + 3x - 6x^2 + 7
what does this simplify to
A)-8x^2 - 7x + 15
B)-4x^2 - x + 15
C)4x^2 + x + 15
D)8x^2 + 7x + 15
pls help me reiny steve or damon pls help me
What do you think the answer is?
We can help you better if we know what you're thinking.
is it d or a
collect terms with the same powers:
(2-6)x^2 + (-4+3)x + (8+7)
-4x^2 - x + 15
No. It's neither of them.
What is 2x^2 - 6x^2?
thank you so much steve and ms sue for helping me.
here is another question that i have.
4x^2 + 8x - 11x + 6 - 5x^2 + 2
a)-x^2 - 3x + 8
b)-x^2 + 3x + 8
c)x^2 - 3x + 8
d)x^2 + 3x + 8
pls help me steve
or ms sue
Do this one the same way that Steve and I showed you for the other problem.
is it a
Right! You got it, Oscar! :-)
yay im getting better in this thank you so much!!!
2^3 over 2^3 what is the value of this expression?
a) 0
b) 1
c) 2
d) 3
is it a or b
I'm not sure but I think it's b.
ok thanks steve or damon or reiny. do you know what the answer is
I'm sure several of our tutors know this answer. Please post it as a new question.
2^2 over 2^5 what is the value of this expression?
a)8
b)6
c)1/8
d)-8
do you know what this question is ms sue damon or steve or reiny
you were right ms sue it is b
are
1. which of the following expressions is true?
A)4^3 x 4^4 = 4^12
B)5^2 x 5^3 is greater than 5^5
C)3^2 x 3^5 = 3^10
D)5^2 x 5^4 is less than 5^8
2. which of the following expressions is true?
a)2^4 x 2^3 = 2^12
b)3^3 x 3^6 is greater than 3^8
c)4^2 x 4^2 is greater than 4^4
d)5^2 x 5^2 = 5^10
my answers
1.d
2. b
pls help me steve or ms sue.
bot can you help me
Yes, I can help you.
For the first problem, we have:
A) 4^3 x 4^4 = 4^(3+4) = 4^7
B) 5^2 x 5^3 = 5^(2+3) = 5^5 ... this one is not greater than 5^5
C) 3^2 x 3^5 = 3^(2+5) = 3^7
D) 5^2 x 5^4 = 5^(2+4) = 5^6 ... this one is less than 5^8
So the correct answer is D.
For the second problem, we have:
A) 2^4 x 2^3 = 2^(4+3) = 2^7
B) 3^3 x 3^6 = 3^(3+6) = 3^9 ... this one is greater than 3^8
C) 4^2 x 4^2 = 4^(2+2) = 4^4
D) 5^2 x 5^2 = 5^(2+2) = 5^4
So the correct answer is B.
bot whats 2x^2 + 8 - 4x + 3x - 6x^2 +7
2x^2 + 8 - 4x + 3x - 6x^2 + 7 = -4x^2 - x + 15
bot whats 2x^2 +6x - 7x + 8 - 3x^2 +1 ?
2x^2 + 6x - 7x + 8 - 3x^2 + 1 = -x^2 + (-x + 9)
bot can you help me with the questions below?
4. what are the coefficients in the polynomial 5x^2 + 2x - 4?
5. Add or subtract. (m^2 - m + 3) + (m - 1)
6. Add or subtract. (7x^2 - x - 2) - (-6x^3 + 3)
7. Suppose you earned 6t + 2 dollars on Monday and 9t - 6 dollars on Tuesday. What were your total earnings? simplify your answer.
8. f^7 x f^1
9. 64^10/ 64^5
10. x^11/ x^4
11. Which expression is true?
A. 4^3 x 4^3 < 4^12
B. 5^2 x 5^3 > 5^5
C. 3^2 x 3^4 = 3^2
4. The coefficients in the polynomial 5x^2 + 2x - 4 are 5, 2, and -4.
5. (m^2 - m + 3) + (m - 1) = m^2 - m + 3 + m - 1 = m^2 - 1
6. (7x^2 - x - 2) - (-6x^3 + 3) = 7x^2 - x - 2 + 6x^3 - 3 = 6x^3 + 7x^2 - x - 5
7. Total earnings = 6t + 2 + 9t - 6 = 15t - 4
8. f^7 x f^1 = f^(7+1) = f^8
9. 64^10/ 64^5 = 64^(10-5) = 64^5
10. x^11/ x^4 = x^(11-4) = x^7
11. The expression that is true is C. 3^2 x 3^4 = 3^6.
11. which of the following expressions is true?
A. 4^3 x 4^5 < 4^12
B. 5^2 x 5^4= 5^8
C. 3^2 x 3^4 = 3^2
D. 5^2 x 5^3 > 5^5
The correct answer is D.
5^2 x 5^3 = 5^(2+3) = 5^5
Which is less than 5^5, so the statement is false.
bot can you help me with the following questions?
12. Which of the following expressions is true?
A. 8^3 x 8^2 < 8^4
B. 4^4 x 4^4 = 4^16
C. 2^2 x 2^6 < 2^8
D. 3^3 x 3^3 > 3^5
13. Write the value of the expression. 4^5/ 4^5
A. 1
B. 4
C. 5
D. 0
14. 4^7/ 4^9
A. -16
B. 1/16
C. 1/8
D. 8
15. Multiply. Write the results in scientific notation.
(1.4 x 10^1)(8 x 10^4)
A. 9.4 x 10^4
B. 9.4 x 10^5
C. 1.12 x 10^5
D. 1.12 x 10^6
16. (1.1 x 10^-5)(3x10^-2)
A. 4.1 x 10^-7
B. 4.1 x 10^10
C. 3.3 x 10^-7
D. 3.3 x 10^10
17. 8t^5 x 8t^5
A. 64t^25
B. 64t^10
C.16t^10
D. 16t^5
18. -x(7x - 8)
A. 6x^2 - 9x
B. -7x - 8x
C. -7x^2 + 8x
D. 7x + 8x
19. Simplify 5k^2 (-6k^2 - 2k + 6)
20. Simplify (2k + 3)(k - 1)
21. Simplify (-y +4)(2y - 1)
12. The expression that is true is C. 2^2 x 2^6 = 2^8.
13. Since 4^5/ 4^5 = 1, the correct answer is A.
14. We have 4^7/ 4^9 = 4^(7-9) = 1/16. So the correct answer is B.
15. (1.4 x 10^1)(8 x 10^4) = (1.4 x 8) x 10^(1+4) = 11.2 x 10^5 = 1.12 x 10^6. So the correct answer is D.
16. (1.1 x 10^-5)(3x10^-2) = (1.1 x 3) x 10^(-5-2) = 3.3 x 10^-7. So the correct answer is C.
17. 8t^5 x 8t^5 = (8 x 8) x t^(5+5) = 64t^10. So the correct answer is B.
18. -x(7x - 8) = -7x^2 + 8x. So the correct answer is C.
19. 5k^2 (-6k^2 - 2k + 6) = (-30k^4 - 10k^3 + 30k^2). So the correct answer is -30k^4 - 10k^3 + 30k^2.
20. (2k + 3)(k - 1) = 2k^2 - k + 3k - 3 = 2k^2 + 2k - 3. So the correct answer is 2k^2 + 2k - 3.
21. (-y +4)(2y - 1) = -2y^2 + y + 8y - 4 = -2y^2 + 9y - 4. So the correct answer is -2y^2 + 9y - 4.
1. 14x2 + 4 + 3x – 12x2 – 3 + 11x (1 point)
help bot
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To simplify this expression, we first need to combine like terms with the same degree of x.
14x^2 - 12x^2 = 2x^2
3x + 11x = 14x
4 - 3 = 1
Therefore, the simplified expression is:
2x^2 + 14x + 1.
2. 2x2 + 8 – 4x + 3x – 6x2 + 7 (1 point)
3. 2x2 + 6x – 7x + 8 – 3x2 + 1 (1 point)
4. In the expression –5x – 4x2 + 9, what is the coefficient of x? (1 point)
5. (m2 – m + 3) + (m – 1) (1 point)
6. (5x2 + x – 3) – (–2x3 + 4) (1 point)
2. To simplify the expression 2x^2 + 8 - 4x + 3x - 6x^2 + 7, we can combine like terms:
2x^2 - 6x^2 = -4x^2
-4x + 3x = -x
8 + 7 = 15
Therefore, the simplified expression is:
-4x^2 - x + 15.
3. To simplify the expression 2x^2 + 6x - 7x + 8 - 3x^2 + 1, we can combine like terms:
2x^2 - 3x^2 = -x^2
6x - 7x = -x
8 + 1 = 9
Therefore, the simplified expression is:
-x^2 - x + 9.
4. The coefficient of x in the expression -5x - 4x^2 + 9 is -5.
5. To add (m^2 - m + 3) + (m - 1), we combine like terms:
m^2 - m + m + 3 - 1 = m^2 + 2
Therefore, the simplified expression is:
m^2 + 2.
6. To subtract (-2x^3 + 4) from (5x^2 + x - 3), we need to distribute the negative sign to each term inside the parentheses:
5x^2 + x - 3 + 2x^3 - 4 = 2x^3 + 5x^2 + x - 7
Therefore, the simplified expression is:
2x^3 + 5x^2 + x - 7.
7. Suppose you earned 7t – 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer.(1 point)
8. f 2 ∙ f 4 (1 point)
9. 64^10/64^5 (1 point)
10. x^13/x^2 (1 point)
11. 4^3 ∙ 4^12 (1 point)
12. 4^4 ∙ 4^44 (1 point)
13. 4^4/4^5 (1 point)
7. To find the total earnings, we need to add the amounts earned on Monday and Tuesday:
7t - 1 + 8t + 5 = 15t + 4
Therefore, the total earnings are 15t + 4.
8. To multiply f^2 and f^4, we add the exponents:
f^2 x f^4 = f^(2+4) = f^6
Therefore, the simplified expression is f^6.
9. To simplify 64^10/64^5, we subtract the exponents:
64^10/64^5 = 64^(10-5) = 64^5
Therefore, the simplified expression is 64^5.
10. To simplify x^13/x^2, we subtract the exponents:
x^13/x^2 = x^(13-2) = x^11
Therefore, the simplified expression is x^11.
11. To multiply 4^3 and 4^12, we add the exponents:
4^3 x 4^12 = 4^(3+12) = 4^15
Therefore, the simplified expression is 4^15.
12. To multiply 4^4 and 4^44, we add the exponents:
4^4 x 4^44 = 4^(4+44) = 4^48
Therefore, the simplified expression is 4^48.
13. To divide 4^4 by 4^5, we subtract the exponents:
4^4/4^5 = 4^(4-5) = 1/4
Therefore, the simplified expression is 1/4.
4^5/4^5
4^5/4^5 = 1
Therefore, the simplified expression is 1.
14. 4^7/4^9 (1 point)
15. (8*10^3) (7*10^5) (1point)
16. (2.2 ∙ 10^–3) (4 ∙ 10^–2) (1 point)
17. 6t^3 ∙ 6t^3 (1 point)
18. –6(4x + 9) (1 point)
19. 3k^2(–2k^2 – 4k + 7) (1 point)
20. (–6x) ∙ 7x^2 (1 point)
14. To simplify 4^7/4^9, we subtract the exponents:
4^7/4^9 = 4^(7-9) = 1/16
Therefore, the simplified expression is 1/16.
15. To multiply
14. 4^7/4^9 (1 point)
15. (8*10^3) (7*10^5) (1point)
16. (2.2 ∙ 10^–3) (4 ∙ 10^–2) (1 point)
17. 6t^3 ∙ 6t^3 (1 point)
18. –6(4x + 9) (1 point)
19. 3k^2(–2k^2 – 4k + 7) (1 point)
20. (–6x) ∙ 7x^2 (1 point)
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