Answer:
f(3) = 18
Step-by-step explanation:
f(x) = 2x^2
Let x = 3
f(3) = 2 * 3^2
= 2 *9
= 18
What is the distance for A(6,0), B (-4,5)
Answer:
[tex]5\sqrt{5}[/tex]
Step-by-step explanation:
The distance formula states that [tex]D(x_{1} ,y_{1})(x_{2},y_{2} )=\sqrt{(x_{2} } -x_{1} )^2+(y_{2}-y_{1} )^2\\[/tex]
We plug in our points, (6,0) and (-4,5), and compute.
[tex]\sqrt{(-4-6)^2+(5-0)^2} \\\sqrt{(-10)^2+5^2} \\\sqrt{100+25} \\\sqrt{125} \\5\sqrt{5}[/tex] (Make sure you see why I put parentheses around the -10 in (-10)^2. -x^2 and (-x)^2 are not the same) (Also here is why the simplification of the radical works)
[tex]\sqrt{125} =\sqrt{5^2*5} =\sqrt{5^2} *\sqrt{5} =5*\sqrt{5} =5\sqrt{5}[/tex]
The * stands for multiplication.
any one know this answer lol ? PLZZZ help
Answer:
the question mark is -2
Step-by-step explanation:
2^-8/2^2=2^-10
(2^5)^-2=2^-10
?=-2
A store sells 4 cans of soup for $6. How much would it cost you to buy 3 cans of soup? It would cost _____
Answer:
$4.50
Step-by-step explanation:
You would divide 6 by 4 to get 1.5 being $1.50 and then muiltpy it by 3 to get 4.50.
The function gx) is graphed. Which statements about the function are true? Choose three options.
g(1)= 1
g(0)= 0
g4)-2
g(1)=1
g(-1) =1
Is this a complementary ,linear pair,vertical or adjacent?
Answer:
adjacent
Step-by-step explanation:
Complementary angles add up to 90 degrees. These two do not. So they are not complementary.
Linear means they add up to 180o. (Same as supplementary). These two do not meet those conditions.
vertical angles are across from each other when two line segments or lines cross. These two do not.
The answer is adjacent. 90 <a+b<180
how do you express a number as a power of 3?
9514 1404 393
Answer:
the power of 3 is the log, base 3, of the number
Step-by-step explanation:
The relationship between powers and logarithms is ...
y = 3^x
x = log₃(y) = log(y)/log(3)
__
For example, if you want 5 as a power of 3, that power will be ...
log(5)/log(3) = 0.69897/0.47712 = 1.46497
That is, ...
5 = 3^1.46497
(a + b)(a 2 - ab + b 2)
Answer:
a³ + b³
Step-by-step explanation:
Given
(a + b)(a² - ab + b²)
Each term in the second factor is multiplied by each term in the first factor, that is
a(a² - ab + b²) + b(a² - ab + b²) ← distribute both parenthesis
= a³ - a²b + ab² + a²b - ab² + b³ ← collect like terms
= a³ + b³
Answer:
a^3 + b^3 ("the sum of two cubes")
Step-by-step explanation:
If you want to express exponentiation please use the symbol " ^ ": a^2.
(a + b)(a^2 - ab + b^2) is a "special product" that you should learn, even though you can multiply out these two factors using the Distributive Property of Multiplication. Remember this: (a + b)(a^2 - ab + b^2) = a^3 + b^3, which is "the sum of two cubes."
What is 5-8|-2n|=-75? And I know it is not n=5 or -5 Please Help!
Answer:
n = -5
I think the answer is -5, because:
The last number in the operation has a negative sign.
This can be a reason that it is-5.
Hope it helps!
find the number of sides in a polygon if the sum of its interior angle is 900 degree
Answer:
The answer is
7 sidesStep-by-step explanation:
The sum of interior angles(s) of a polygon can be found by using the formula
s = (n - 2) × 180Where n is the number of sides of the polygon
From the question
s = 900°
Substitute this value into the above formula and solve for n
That's
[tex]900 = (n - 2) \times 180 \\ 900 = 180n - 360 \\ 180n = 900 + 360 \\ 180n = 1260[/tex]
Divide both sides by 180
[tex] \frac{180n}{180} = \frac{1260 }{180} \\ [/tex]
We have the final answer as
n = 7
Therefore the polygon has 7 sides
Hope this helps you
A train travels at 47 miles per hour. Which equation
represents the distance, d, that the train will travel
in t hours?
A d = 47+t
B t = 47 +d
d = 47t
D
t=47d
Answer:
d
Step-by-step explanation:
I think its d but I'm not quite sure
Solve the equation.
-7b=21
Step-by-step explanation:
-7b=21
Divide both sides by - 7
B= -3
A man walks (12x^2+11x+2) km for (3x+2) hours. What is his speed per hour?
Step-by-step explanation:
Hey there!
Distance = 12x^2+11x+2.
And Time = 3x+2 hours.
Now;
[tex]speed = \frac{distance}{time} [/tex]
Put all values.
[tex]s = \frac{12 {x}^{2} + 11x + 2}{3x + 2} [/tex]
Use mid term factorization is numerator and simplify them to get answer.
[tex]s = \frac{12 {x}^{2} + (8 + 3) x+2 }{3x + 2} [/tex]
[tex]s = \frac{12 {x}^{2} + 8x + 3x + 2 }{3x + 2} [/tex]
[tex]s = \frac{4x(3x + 2) + 1(3x + 2)}{(3x + 2)} [/tex]
[tex]s = \frac{(4x + 1)(3x + 2)}{(3x + 2)} [/tex]
[tex]s = (4x + 1)[/tex]
Therefore the speed is (4x+1)/hr.
Hope it helps..
Determine the range of the following graph
Answer: [-4,4]
Step-by-step explanation: Range is the set of y-values that are outputted by function f(x).
From the graph we see that our y-values span from -4 to 4. Since both are closed dot, they are included in the range:[-4, 4] or -4≤ y ≤ 4
Sneha works two part-time jobs. One job is at a tutoring company that pays $19 an hour, and the other is pumping gas for $11.50 an hour. Between the two jobs, Sneha wants to earn at least $310 a week. Let x be the number of hours she works at the tutoring company and let y be the number of hours she works pumping gas. Write an inequality that models this situation.
Answer:
[tex]19x + 11.5y \geqslant 310[/tex]
19x+11.5≥310 is the inequality that models this situation.
What is Inequality?a relationship between two expressions or values that are not equal to each other is called 'inequality.
Given that Sneha works two part-time jobs
One job is at a tutoring company that pays $19 an hour,
Let x be the number of hours she works at the tutoring company
The other is pumping gas for $11.50 an hour
let y be the number of hours she works pumping gas.
Sneha wants to earn at least $310 a week
We have to find the inequality that models this situation.
19x+11.5≥310
Hence, 19x+11.5≥310 is the inequality that models this situation.
To learn more on Inequality click:
https://brainly.com/question/28823603
#SPJ2
Based on the table, which best predicts the end behavior of the graph of F(x)?
Answer:
C
Step-by-step explanation:
The table shows the sign of the function is the opposite of the sign of x, so ...
as x → ∞, f(x) → -∞; as x → -∞, f(x) → ∞ . . . . . matches the 3rd choice
Answer:
it is C
Step-by-step explanation:
cuz i got it right
During 30 minutes on the treadmill, LaToya burned 20 calories per minute. What is the rate of change of the function that represents this situation?
0 10 calories per minute
0 20 calories per minute
0 30 calories per minute
0 50 calories per minute
The rate of change is obviously that term that describe the change over a certain period. In this problem, we are given with the condition that LaToya is able to burn 20 calories per minute. Therefore, the rate of change is 20 calories per minute.
\
Answer:B
Step-by-step explanation:20 calories per minute
ANSWER BOTH thanksss
what's the solution of 2x/5-x/2=40?
what's the solution of 1.4-0.04x=5.20?
Answer:
x=-400
x=-95
Step-by-step explanation:
They are negative because a negative times a negative is a positive.
Which numbers are rational?
I. 2.2222222...
II. 2.20220222...
III.2.345
Answer:
2.345
Step-by-step explanation:
1. Find the GCF of 8 and 12.
List the factors of 8.
List the common factors.
Find the GCF of 15 and 20.
Math
Step-by-step explanation:
8-1,2,4,8
12-1,2,3,4,6,12
15-1,3,5,15
20-1,2,4,5,10,20
The difference of a number x and 15 is no less than 11
Answer:
x = 4; 15 - x > 11
Step-by-step explanation:
Step 1: set up equation
15 - x = 11
- x = 11 - 15
- x = - 4
x = - 4 ÷ - 1
x = 4
For inequality:
15 - x > 11
Please help me i beg of you!!!!
Answer:
-4 & -6, 1 & 5, 3 & 5
Step-by-step explanation:
I don’t know how to solve for p.
Answer:
p=12
Step-by-step explanation:
DBC = 180
ABE = 180
ABC + DBA = 180
ABC = (5p -28)
DBA + (12p -4)
CBD = ABC + DBA = 180
-------------------------------------------------
180 = (5p - 28) + (12p + 4)
180 = 17p - 24
204 = 17p
12 = p
p = 12
------------------------------------------------------
180 = (5(12) - 28) + (12(12) +4)
180 = 60 - 28 + 144 +4
180 = 180
What is the equation of the line that has a slope of -4 and goes through (-1,6)?
Answer:
y = - 4x + 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = - 4, thus
y = - 4x + c ← is the partial equation
To find c substitute (- 1, 6) into the partial equation
6 = 4 + c ⇒ c = 6 - 4 = 2
y = - 4x + 2 ← equation of line
Answer:
y = - 4x + 2
Step-by-step explanation:
Find the domain and range of the relation and determine whether it is a function.
A. domain: positive integers; range: positive integers; No, it is not a function.
B. domain: x>-0; range: y>-2; No, it is not a function.
C. domain: all real numbers; range: all real numbers; Yes, it is a function
D. domain; x>-2; range: y>0; Yes, it is a function
Answer: D. domain; x>-2; range: y>0; Yes, it is a function
Step-by-step explanation:
a) Solve x+x+x=54
b) Solve [tex]\frac{y}{5}[/tex] = 7
c) Solve 4t+6= 24
How to answer
a) x= (insert answer here)
b) y= (insert answer here)
c) t= (insert answer here)
Please!!!
a) x= 54÷3 = 18
b) y= 7×5 = 35
c) t= (24-6)÷4 = 4.5
Answer:
wfs
Step-by-step explanation:
What is the mistake made in this algebra problem?
Answer:
C
Step-by-step explanation:
They subtracted 4x when combining like terms, but they should have added it because it is a positive number. Had the term been -4x that would have been correct. -2x+4x should be 2x instead of -6x.
20. Two collinear rays that do not intersect? How would I draw this?
Answer:
Two collinear rays are parallel to each other.
Step-by-step explanation:
Two collinear rays parallel to each other, and they are on the same plane. Thus they do not meet even when extended till infinity.
An example of collinear rays is when you draw two parallel rays on a plain paper placed on an horizontal surface.
Your drawing should look like what is attached to this answer.
Yes, two collinear rays that do not intersect along with the figure attached at he end.
To draw two collinear rays that do not intersect, you can follow these steps:
1. Start by drawing a straight line segment. This will be the common line for the collinear rays.
2. Choose a point on one end of the line segment. This will be the starting point of the first ray.
3. Draw a line extending from the chosen point, in the same direction as the line segment, but do not let it intersect the line segment.
4. Choose another point on the other end of the line segment. This will be the starting point of the second ray.
5. Draw a line extending from the second point, also in the same direction as the line segment, but make sure it does not intersect the line segment or the first ray.
Learn more about Collinear line here:
https://brainly.com/question/10712488
#SPJ6
Gary earned a gross pay of $1,047.30 last week. Using the fact that Social Security tax is 6.2% of gross pay, determine the amount of Social Security tax deducted from Gary’s gross pay. a. $6.49 b. $8.38 c. $64.93 d. $83.78
Answer:
C
Step-by-step explanation:
64.93
The social security tax deducted from Gary's gross pay is $64.93.
What is social security tax?
This is the tax levied on both employers and employee to develop social security program.
The social security tax deducted from Gary's gross pay is calculated as follows;
Tax = Amount x rate
Tax = $1,047.30 x 0.062
Tax = $64.93
Thus, the social security tax deducted from Gary's gross pay is $64.93.
Learn more about social security tax here: https://brainly.com/question/9741758
3) Evalute the expression
-142-15
Answer:
Subtract 15 from 142. -157
Step-by-step explanation:
Answer:-157
Step-by-step explanation:
When you are subtracting from negative numbers number get higher
i need help on this
