Answer:
x=12
Step-by-step:
Square root both sides to get
x-3=9
Then take 3 to the other side
x=9+3
x=12
HELP! WILL GIVE BRANLIEST!
(Question 12)
Answer:
the first one I believe to be answer D, hope this helps
(Please help)..........................
Answer:
the first one is correct
Select all the expressions that are equal to 420.
(40 x 1) + (2 x 10)
30 x 10 x 4
20 x 20 x 1
21 x 20
30 x 14
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}.
Use the Distributive Property to write without parentheses:
4\left(3-2m\right)4(3−2m)
Answer: 12 - 8m If there is supposed to be a sign between the rwo expressions, that will change.
If its multiplication it would be 144 - 192m + 4m²
Step-by-step explanation:
what is the slope of the line shown?
Answer: We can't answer Because we cannot see it
Step-by-step explanation:
Answer:
fdfbfff
Step-by-step explanation:
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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8-4x for x = 9
The expression equals I
Answer:
- 28
Step-by-step explanation:
Step 1:
8 - 4x Equation
Step 2:
8 - 4 ( 9 ) Input x value
Step 3:
8 - 36 Multiply
Answer:
- 28 Subtract
Hope This Helps :)
16. What is the length of minor arc CD?
42
A
d = 30 ft
A: 7.91 feet
B: 8.32 feet
C: 10.99 feet
D: 11.89 feet
Your answer will be C
What is the value of x?
Answer:
5
Step-by-step explanation:
6x+12 = 9x-3
3x = 15
x= 5
solve for x.
x/2.5<10
Answer:
x < 25
Step-by-step explanation:
x/2.5 < 10
you need to get x alone so you multiply both sides by 2.5 to get the 2.5 crossed out on one side
x < 2.5 times 10
Select the correct answer. If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system?
OA The lines in a system cannot be parallel.
OB There is no solution. OC There is exactly one solution.
OD There are infinitely many solutions.
Answer:
a
Step-by-step explanation:
Answer:
B: There is no solution
Step-by-step explanation
The lines are parallel so there is no way the lines can cross and have a solution so there's no solution
Find the slope of the line graphed below.
Answer:
3/2
Step-by-step explanation:
rise over run--->3 up and 2 right, 3/2 is the slope
x divided by 39 = 1204 R38
Answer:
x=46994
Step-by-step explanation:
Just do 1204 38/39 * 39 to get x=46994
What is the original price of the box of cereal?
Answer:
$3.20
Step-by-step explanation:
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.
if Ladarius jogs 24 km in 3 hours, how many km can he jog in 5 hours?
Answer:
40 km per hour
Step-by-step explanation:
24 km divide by 3= 8 km per hour.
8km x 5 hours= 40 km in 5 hours
What is the population density of 13 lillies living in an area of 6 meters (length) and 4 meters (width)?
Answer:
0.54 lillies per square meter.
Step-by-step explanation:
First we calculate the area:
Area = length * width
Area = 6 m * 4 m = 24 m²
The we divide the population of lillies (13) by the area, to calculate the population density:
13 lillies / 24 m² = 0.54 lillies/m²
So the population density is 0.54 lillies per square meter.
What quadrant is the point (-3, -3) in
Answer:
3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
brainliest pls
A line has slope −1. It passes through the point Q(2, −n) and R(4, −3). What is the value of n?
PLEASE HELLPPP MEEEE WITHH MATHHH
Answer:
-1/2y+1/2x
Step-by-step explanation:
Can anyone solve this? If so tell me and make sure u know what ur doing please
Answer:
-2
Step-by-step explanation:
To find the slope of a line, you need to find the [tex]\frac{rise}{run}[/tex] between two points. I will be using the points (-3, 2) and (-1, -2).
[tex]\frac{rise}{run}[/tex] = [tex]\frac{-2-2}{-1-(-3)}[/tex]
= [tex]\frac{-2-2}{-1+3}[/tex]
= [tex]\frac{-4}{2}[/tex]
= -2
Pleas help me fast!
Answer:
35
Step-by-step explanation:
17-7+5^2 Divide 28 by 4
17-7+25 5 to the power 2 is 25
10+25 add 25 and 10 and you get 35.
35
Answer:
35
Step-by-step explanation:
You buy 2,000 shares of stock for $25.43 and sell them for $44.10 per share. What
percent is your capital gain?
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!
What fraction of state legislatures must approve an amendment before it becomes law
Answer:
3/4.
Step-by-step explanation:
The process of amendments to the Constitution of the United States is established and specified in Article V of said regulation. This process can be initiated by Congress or by the state legislatures, and once the amendment is approved by them, the legislatures of at least 3 out of 4 states (75% of the total) must ratify the amendment so that it becomes operative and is inserted into the constitutional text.
Answer both questions pls for more points :)
Answer...
1st is A
2nd is C
9 correct : 15 questions = 45 correct: q questions
please help me
Answer: it should be 75
Step-by-step explanation:
9 times 5 is 45 so 15 times 5 should be 75
Perform the indicated operation:
NEED HELP PLEASE
Answer:
the 3rd one..........??
There are 7 socks in a bag. 2 of those socks are blue.
What is the probability of picking a blue sock randomly from the bag
Answer:
2/7 or about 28% depending on what type of answer your teacher is looking for
