1. Draw a model to represent the polynomial x2 + 2x + 4. (1 point)
1 big square, 1 tall rectangle, 4 little sqaures
1 big square, 2 tall rectangles, 4 little sqaures in the shape of an "L"
2 big sqaures, 4 little squares
none of these
2. Simplify the polynomial.
–3f2 + 4f – 3 + 8f2 + 7f + 1
(1 point)
5f2 – 11f + 2
11f2 + 11f + 2
5f2 + 11f – 2
–5f2 + 11f – 2
3. Add or subtract.
(2x2 + 6x + 1) + (–7x2 + 2x – 3) (1 point)
5x2 – 4x – 2
–5x2 + 8x – 2
5x2 – 8x + 2
–9x2 – 8x + 2
4. (3x2 – 7x – 4) – (6x2 – 6x + 1) (1 point)
–3x^2 – x –5
–3x^2 –13x + 5
9x^2 – x + 5
3x^2 – 13x – 5
5. Write the perimeter of the figure as a polynomial. Simplify. (1 point)
the shape is a trapizoid
top: 2x
bottom: 3x
left side: 4x + 1
right side: 4x + 1
13x + 2
13x + 1
9x + 1
9x + 2
6. The area of room A is (5x^2 – 7x – 6) ft^2. Room B has an area of (8x^2 + 6x – 1) ft^2. If room A is the larger room, how much greater is the area of room A than the area of room B? (1 point)
–3x^2 – x – 7*****
13x^2 – 13x – 7
–3x^2 – 13x – 5
3x^2 – x – 5
7. In the expression –7x – 5x2 + 5, what is the coefficient of x? (1 point)
7
5
–5
–7*****
8. Write the expression using a single exponent. (1 point)
2^2 • 2^8
4^10
2^10*****
4^16
2^16
9. Write the expression using scientific notation. (1 point)
(2.5 • 104)(4 • 103)
10 • 10^7*****
10 • 10^8
1 • 10^8
10• 10^12
***** is my answer
so sorry that i don't know the first few:(
and sorry if the first one is confusing
but pls help asap!
help much apprectiated, thank you:)
95 answers
x^2+2x+4 can be written as
x^2 + x(2) + 4*1^2
I think that the best choice would be
1 big square, 1 tall rectangle, 4 little squares
#2
–3f^2 + 4f – 3 + 8f^2 + 7f + 1
just collect terms of the same power
(-3+8)f^2 + (4+7)f + (-3+1)
5f^2 + 11f - 2
#3
(2x^2 + 6x + 1) + (–7x^2 + 2x – 3)
(2-7)x^2 + (6+2)x + (1-3)
-5x^2 + 8x - 2
#4
(3x^2 – 7x – 4) – (6x^2 – 6x + 1)
(3-6)x^2 + (-7+6)x + (-4-1)
-3x^2 - x - 5
#5 just add up the sides
2x+3x+4x+1+4x+1
13x+2
#6
(5x^2 – 7x – 6)-(8x^2 + 6x – 1)
(5-8)x^2 + (-7-6)x + (-6+1)
-3x^2 - 13x - 5
#7 ok
#8 ok
#9 the number must be less than 10, so instead of 10*10^7 you want 1 * 10^8.
#1: B
#2: C
#3: B
#4: A
thank you on the others though Steve:)
1. B
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
Guaranteed 100% 9/9
BTW: For number 10, I just looked it up on the Web for help. But you may want to try and do one part by yourself. I did that
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
10.
5^11 = 5^3 * 5^8
5^11 = 5^0 * 5^11
5^11 = 5^-4 * 5^15
A
B
A
D
C
D
C
A
B
I'll Give U The Ones I Missed...
3. B
4. A
8. A
1. A
2. B
3..A
4. D
5. C
6. C
7. A
8. C
9. ESSASY
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
btw ty Ms. Sue 100%
-Ya'llMakeMeFacePalm
Time's up!
The correct answer is "No.". I mean, we got the help that we needed so just let it be and move on with your lives. I'm pretty sure that you aren't depressed enough to talk about if the "Ms. Sue" is real or not. That's all for today folks!
Brought to you by "The Random"!
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
20. Essay
~UnaLoca
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
20. Essay
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
For the essay, use Ms.Sue's answer. I don't want my teacher to think I plagiarized.
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
all coreect!! 100%
1. B
2. C
3. B
4. A
5. A
6. C
7. D
8. B
9. C
For number 10 you just need to figure out the different ways you can get 5^11.
For example, everyone should have this one: 5*5*5*5*5*5*5*5*5*5*5.
Good luck. :)
List three different ways to write 511
as the product of two powers. Explain why all three of
your expressions are equal to 511
7^3 * 1^1 = 343 * 1 = 343
Another way to write 511 as the product of two powers is:
2^9 * 1^1 = 512 * 1 = 512
A third way to write 511 as the product of two powers is:
8^2 * 2^1 = 64 * 2 = 128
All three expressions are equal to 511 because in each expression, one of the powers is equal to 1. This means that only one of the base numbers in the expression is being raised to a non-zero exponent, and the other base number is being raised to a zero exponent. Therefore, when you multiply the two base numbers raised to their respective exponents, you end up with only one non-zero base number that is being raised to a non-zero exponent, and this equals 511.
1. 5¹¹ * 1¹ = 5¹¹
2. 5³ * 5⁸ = 125 * 39,0625 = 5¹¹
3. 5²⁰ * 1⁻⁹ = 95,367,431.64 * 0.000000001 = 5¹¹
All three expressions are equal to 5¹¹ because in each expression, one of the powers is equal to 1 and the other power is raised to a non-zero exponent. When you multiply the two base numbers raised to their respective exponents, you end up with only one non-zero base number that is being raised to a non-zero exponent, and this equals 5¹¹.
So, (2.5 × 10⁴)(4 × 10³) = (2.5 × 4) × 10⁴⁺³ = 10 × 10⁷ = 10⁸
Therefore, (2.5 × 10⁴)(4 × 10³) is equal to 10⁸ in scientific notation.
5¹¹ * 1¹ = 5¹¹
Another way to write 5¹¹ as the product of two powers is:
5⁵ * 5⁶ = 3,125 * 15,625 = 5¹¹
A third way to write 5¹¹ as the product of two powers is:
Short awnser please
2^2 x 2^8=
Write the expression with a single exponent
511 = 7^1 * 73^1
In this expression, 7 is raised to the power of 1, and 73 is also raised to the power of 1. Both numbers are prime factors of 511, and when multiplied together, they result in 511.
511 = 11^1 * 47^1
In this expression, 11 is raised to the power of 1, and 47 is also raised to the power of 1. Similar to the previous example, both numbers are prime factors of 511, and their product equals 511.
511 = 1^9 * 511^0
In this expression, 1 is raised to the power of 9, and 511 is raised to the power of 0. The reason this expression is equal to 511 is because any number (except 0) raised to the power of 0 is defined as 1. Thus, 511^0 equals 1, and 1^9 equals 1. Therefore, the product of 1^9 and 511^0 is indeed 511.
All three expressions are equal to 511 because they represent different prime factorizations of 511. Prime factorization is a unique representation of a number as the product of its prime factors, and since 511 is a composite number (not prime), it can be expressed in multiple ways as a product of powers. Each of the expressions above consists of prime factors of 511, and when these prime factors are multiplied together, the result is 511.