Answer:
238 B
Step-by-step explanation:
8.5*28
Find the zeros for each function
1. f(x)= x^3 + 12x^2 + 21x + 10
2. f(x) = x^4 + x^3 - 11x^2 - 9x + 18
9514 1404 393
Answer:
zeros are -10, and -1 (multiplicity 2)zeros are {-3, -2, 1, 3}Step-by-step explanation:
For higher-degree polynomials I find it extremely useful to use a graphing calculator to find the zeros.
The usual approaches are ...
use the rational root theoremtry values of x=±1narrow the search using Descartes' rule of signsestimate maximum or minimum root values__
1. Rational roots will be factors of 10, so ±1, ±2, ±5, or ±10. The signs are all positive, so there are no positive real roots. The sum of odd-degree coefficients is the same as the sum of even-degree coefficients, so -1 is one of the roots. Removing that using synthetic division gives you ...
f(x) = (x +1)(x^2 +11 +10)
The quadratic (more or less obviously) factors as (x+1)(x+10), so the complete factorization is ...
f(x) = (x +1)^2(x +10)
and the zeros are {-10, -1, -1}.
__
2. Rational roots will be factors of 18, so will be ±1, ±2, ±3, ±6, ±9, ±18. The sum of coefficients is 0, so x=1 is a root. The rule of signs tells you that there are 2 positive real roots, so there is one more positive real root. Synthetic division tells you the factoring so far is ...
f(x) = (x -1)(x^3 +2x^2 -9x -18)
We note that the first two coefficients have the same ratio as the last two, so we can factor by grouping.
x^3 +2x^2 -9x -18 = x^2(x +2) -9(x +2) = (x^2 -9)(x +2)
Factoring the difference of squares gives you the complete factorization, hence all of the roots. (The zeros are the values of x that make the factors zero.)
f(x) = (x -1)(x +2)(x -3)(x +3)
The zeros are {-3, -2, 1, 3}.
What is the value of x?
Answer:
5
Step-by-step explanation:
6x+12 = 9x-3
3x = 15
x= 5
Find the coefficient of x^2 y^3 in the expansion of (-4x+y)^5. Give your answer as an integer.
3C + 2b + 2c - 4b simplify the equation
Answer:
5c - 2b
Step-by-step explanation:
3c + 2c +2b -4b
5c - 2b
hope it helps :)
if it helps plzzzz mark me brainliest
What quadrant is the point (-3, -3) in
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
brainliest pls
HELP! WILL GIVE BRANLIEST!
(Question 12)
Answer:
the first one I believe to be answer D, hope this helps
9965 divided by 19.9 estimate
Answer: 500.7
500.75 = 500.7
Step-by-step explanation:
The estimated value is 500
What is estimation?Estimating in math is a way of approximately calculating an answer (getting a 'rough answer') or to check its accuracy (the 'right answer').
Given that, 9965 divided by 19.9 estimate
Let 9965 ≈ 9970
19.9 ≈ 20
9970 ÷ 20
9970 / 20
= 498.5
≈ 500
Hence, the estimated value is 500.
Learn more about estimation, click;
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PLEASE HELLPPP MEEEE WITHH MATHHH
Answer:
-1/2y+1/2x
Step-by-step explanation:
ashley's tricycle has two different wheel sizes: one larger wheel and two smaller wheels. As Ashley travels the distance between her house and her neighbor's house on the tricycle, the larger wheel rotates 4 times, and each of the small wheels rotate 12 times. If half the circumference of the larger wheel is 2 inches more than the circumference of one of the smaller wheels, what is the distance, in inches, traveled by the tricycle between ashley's house and her neighbor’s house?
A. 4 inches
b. 48
c. 60
d. 16
Answer:
the answer is D have a nice day!
Answer both questions pls for more points :)
Answer...
1st is A
2nd is C
2. Which expression is equivalent to 3(4x + 10 = 2+3)?
Answer: ask ggle it gives you the answer
Step-by-step explanation:
Convert 5 hours to seconds
Answer:
18000
Step-by-step explanation:
18,00 seconds would be the answer
An hour is a unit of time equal to 60 minutes, or 3,600 seconds. A second is the base unit of time.
if f(x)= 3x + 4, then what is f(-2)
Answer:
f ( - 2 ) = - 2
Step-by-step explanation:
Step 1:
f ( x ) = 3x + 4 Equation
Step 2:
f ( - 2 ) = 3 ( - 2 ) + 4 Input x value
Step 3:
f ( - 2 ) = - 6 + 4 Combine Like Terms
Answer:
f ( - 2 ) = - 2 Combine Like Terms
Hope This Helps :)
The entrance fee to a carnival is $8, and it costs $0.50 for each ride. If Sanjay rides 6 rides, how much will he spend in total?
A. $28 dollars
B. $14dollars
C. $11dollars
D. $10 dollars
Answer:
$11
Step-by-step explanation:
0.50 × 6 = 3
3 + 8 = 11
Answer - $11
Hope this helps
Sophia went out to eat dinner, and the meal cost $40.00. If Sophia received a 35% discount, what was
total value of the discount?
$12.60
$14.00
$15.20
$16.80
Sub
Answer:
The total value of the discount is $14
Step-by-step explanation:
40 x 0.35 = 14
NEED HELP SOLVING PLEASE
Pls help answer correctly for brainliest pls and 50 points
If x = 4 then 2x + 6 =
If b = 12 then 2(3b + 1) =
If x = 5 then x^2 + 4 =
If x = 2 then 9x + 13 =
If x = 5 then 4x - 1 =
If x = 3 then 4x - 3 =
If s = 6 then 9 + 3s =
If x = 4 then 3x - 4 =
If n = 8 then 3(n + 1) =
If n = 6 then 5(n - 5) + 16 =
Answer:
Just substitute
Answers in order of questions
147429311992782721Hope this helped. Please mark as brainliest!
Answer:
lol whyd you delete my answer
Step-by-step explanation:
x divided by 39 = 1204 R38
Answer:
x=46994
Step-by-step explanation:
Just do 1204 38/39 * 39 to get x=46994
Question Help The mean finish time for a yearly amateur auto race was 185.64 minutes with a standard deviation of 0.314 minute. The winning car, driven by Sam, finished in 185.29 minutes. The previous year's race had a mean finishing time of 110.3 with a standard deviation of 0.129 minute. The winning car that year, driven by Rita, finished in 110.02 minutes. Find their respective z-scores. Who had the more convincing victory?
Answer:
Sam has the more convincing victory with a greater Zscore value
Step-by-step explanation:
Given that :
Year 1:
Mean finish time (m) = 185.64
Standard deviation (s) = 0.314
Sam's time (x1) = 185.29
Year 2:
Mean finish time (m) = 110.3
Standard deviation (s) = 0.129
Rita's time (x1) = 110.02
Zscore = (x - mean) / standard deviation
Sam's Zscore :
(185.29 - 185.64) / 0.314
= - 0.35 / 0.314
= −1.114649
= - 1.115
Rita's Zscore :
(110.02 - 110.3) / 0.129
= - 0.28 / 0.129
= −2.170542
= - 2.171
Sam has the more convincing victory with a greater Zscore value
mark can cleaN the house in 7 hours. when he cleans the same house with wend, it takes them 3 hours to clean the house. how long would it rake wendy to clean the house by herself
Answer:5.25
Step-by-step explanation:
3(1/7 + 1/x) = 1
3([x + 7]/7x) = 1
3x + 21 = 7x
4x = 21
x = 21/4 OR 5.25
It will take wendy 5.25hrs to clean the house by herself.
Let x be the time taken by mark to clean the house by herselfLet y be the time taken by wend to clean the house by herselfLet a be the time it took the two to clean the house together.In order to get the time it take wendy to clean the house by herself, we will use the expression:
1/a = 1/x + 1/y
1/3 = 1/7 + 1/y
1/y = 1/3 - 1/7
1/y = 7-3/21
1/y = 4/21
y = 21/4
y = 5.25hrs
Hence it will take wendy 5.25hrs to clean the house by herself.
Learn more on fractions here: https://brainly.com/question/5474474
In the figure,ABC~ DEF. solve for x
Answer:
B) X = 6
Step-by-step explanation:
The figure transformation is a dilation. And the side lengths increased by two.
I WILL GIVE BRAINLIEST TO WHOMEVER ANSWERS FIRST
Can someone thats extremely good at math click on my name and go to my math questions and help me with them. Im failing math and need to bring my grade up. Please No Plagiarism. Will Mark Brainliest. Please dont answer if you dont know. Thank you. Need two responses.
Answer:
I'll be glad to assist you.
Step-by-step explanation:
An item is regularly priced at $80, Ryan bought it at a discount of 5% off the regular price. How much did Ryan pay?
Answer:
16
Step-by-step explanation:
divide by 5
Answer:
$76
Step-by-step explanation:
5% of $80 is $4
$80-$4= $76
Help quickly please I’m on a timer
Answer:
C.
Step-by-step explanation:
Simply add the two functions.
5x³+2x²-7x+4
+ 3x-7
Everything with an exponent stays the same because there is nothing else with those exponents in the other function. So all you're doing is adding the -7x+4 and 3x -7.
-7x+3x = -4x
4 - 7 = -3
That leaves you with answer C:
5x³+2x²-4x-3
Answer:
[tex]C.(f+g)(x)=(5x^3+2x^2-4x-3)[/tex]
Step-by-step explanation:
[tex]We\ are\ given\ that,\\f(x)=5x^3+2x^2-7x+4\\g(x)=3x-7\\Hence,\\(f+g)(x)\\=f(x)+g(x)\\Hence,\\f(x)+g(x)=(5x^3+2x^2-7x+4)+(3x-7),\\ f(x)+g(x)=(5x^3+2x^2-7x+3x+4-7) \\f(x)+g(x)=(5x^3+2x^2-4x-3)\\Hence,\\(f+g)(x)=(5x^3+2x^2-4x-3)[/tex]
(5x2-2x) + (6x- 4)
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Answer:
5x₂ + 4x - 4
Step-by-step explanation:
(5x₂ - 2x) + (6x - 4)
Combine -2x and 6x to get 4x.
5x₂ + 4x - 4
Answer:
5x^2+4x-4
Step-by-step explanation:
(5x^2-2x)+(6x-4)
terms: 5x^2,-2x,6x,-4
combine like terms
6x-2x=4x
Put it in order
5x^2+4x-4
Over-explained but h
ope this helps:)
Perform the indicated operation:
NEED HELP PLEASE
Answer:
the 3rd one..........??
PLS HELP WILL GIVE BRAINLIEST
How can parents that dont have a O blood type still have a O blood type baby???
Answer: While a child could have the same blood type as one of his/her parents, it doesn’t always happen that way.
Step-by-step explanation:
For example, parents with AB and O blood types can either have children with blood type A or blood type B. These two types are definitely different than parents’ blood types!
Drag each shape to the correct category.
Identify the shapes that are similar to shape A and those that are not.
Answer:
3,1,6,2 hope this helps :D
Step-by-step explanation:
6th grade math look at the pictures
Answer:
use a calculator.
Step-by-step explanation:
Answer:
2. 17.624
3. 9.72
4. 14.3
5. 2.11
8. 5,105.16
10. 124.7
Step-by-step explanation: