Answer:
B. 5x + 3y = 0Step-by-step explanation:
Parallel lines have the same slope.
The slope-intercept form of an equation of a line:
[tex]y=mx+b[/tex]
m - slope
b - y-intercept
The formula of a slope:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have the points A(-3, 0) and B(-6, 5). Substitute:
[tex]m=\dfrac{5-0}{-6-(-3)}=\dfrac{5}{-3}=-\dfrac{5}{3}[/tex]
The line passes through the origin, therefore the y-intercept is equal to 0.
Therefore we have the equation:
[tex]y=-\dfrac{5}{3}x[/tex]
Convert to the standard form [tex]Ax+By=C[/tex]
[tex]y=-\dfrac{5}{3}x[/tex] multiply both sides by 3
[tex]3y=-5x[/tex] add 5x to both sides
[tex]5x+3y=0[/tex]
The equation of the line parallel to AB passing through the origin is 5x - 3y = 0.
The equation of the line that passes through the origin and is parallel to AB is 5x - 3y = 0.
To find the equation of a line parallel to AB passing through the origin, we first need to find the slope of AB, which is (5 - 0) / (-6 + 3) = 5 / -3 = -5/3.
Since the line passing through the origin and parallel to AB has the same slope, its equation will be of the form y = mx. Substituting the point (0, 0) into y = -5/3x gives us y = -5/3x, which simplifies to 5x - 3y = 0.
There are eight planets in our solar system. Venus is the hottest planet, with an average temperature of 460°C. The average temperatures of some other planets are given in the table.
Planet
Average Temperature
Venus
460°C
Earth
14°C
Mars
-60°C
Neptune
-214°C
Answer:
what is the question i dont get it
Step-by-step explanation:
a golf ball is dropped onto concrete from 2 meters up. Each time it bounces, it rebounds to 2/3 of its previous height. On the sixth rebound, how much will it rise
Step-by-step explanation:
The ratio is the same each time (2/3), so this can be modeled as a geometric sequence.
an = a₁ (r)^(n-1)
where an is the nth term, a₁ is the first term, and r is the common ratio.
On the first rebound, the ball rises to 2/3 × 2 = 4/3, so a₁ = 4/3.
an = 4/3 (2/3)^(n-1)
On the sixth rebound, the ball rises to:
a₆ = 4/3 (2/3)^(6-1)
a₆ = 4/3 (32/243)
a₆ = 128/729
a₆ ≈ 0.176
HELPP!!!! I need the answer please
Answer:
x = 4
Step-by-step explanation:
Using the 90-60-30 theorem, the hypotenuse is equal to 2a, so a = 4 sqrt(2). The shortest leg is therefore 4 sqrt(2). Using this, to find x, plug it into the smaller triangle. The hypotenuse of the smaller triangle is therefore 4 sqrt(2). Using the 45-45-90 theorem, 4 sqrt(2) = x sqrt(2), so x = 4. This is because there are two sqrt(2)'s', so taking that out of the equation leaves x = 4.
Hope this helps!
What are the solutions of the given equation 2x^2+9x+10=0
Answer:
see explanation
Step-by-step explanation:
Given
2x² + 9x + 10 = 0
To factor the quadratic
Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term.
product = 2 × 10 = 20 and sum = + 9
The factors are + 4 and + 5
Use these factors to split the x- term
2x² + 4x + 5x + 10 = 0 ( factor the first/second and third/fourth terms )
2x(x + 2) + 5(x + 2) = 0 ← factor out (x + 2) from each term
(x + 2)(2x + 5) = 0
Equate each factor to zero and solve for x
x + 2 = 0 ⇒ x = - 2
2x + 5 = 0 ⇒ 2x = - 5 ⇒ x = - [tex]\frac{5}{2}[/tex]
Answer:
1. x = 2
2. x = - 5/2
Step-by-step explanation: First put parenthesis around the equation
( 2x^2 + 4x ) + ( 5x + 10) = 0
2x ( x+ 2) 5 (x + 2),
when you have the same answer inside the parenthesis you know your right.
2x + 5 = 0
x + 2 = 0
Next preform basic algebra
2x = -5
x = -2x = - 5/2What is the y-intercept for the graph of the equation y=4(3^x)
A. (0,8)
B. (0,3)
C. (0,4)
D. (0,12)
ANSWER
C. (0,4)
EXPLANATION
The given graph has equation:
[tex]y = 4( {3}^{x} )[/tex]
The y-intercept is where the graph touches the y-axis.
At this point the value of x is zero.
We substitute x=0 into the equation to obtain:
[tex]y = 4( {3}^{0} )[/tex]
Recall that any non-zero number exponent zero is 1.
This implies that,
[tex]y = 4( 1 ) = 4[/tex]
Hence the y-intercept is (0,4)
The correct answer is C.
Find the equation of the line graph below in slope intercept form. please show your work. (will make brainiest.)
Answer:
y=2/3x+3
Step-by-step explanation:
the slope is 2 over 3 because you ride 2 up and 3 to the right to get to the next dot and the y intercept is 3 because that's where the line intercepts the y axis.
Jackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet?
Answer:
40 Miles Per Hour is 211,200 Feet per Hour, 3520 Feet Per Minute, and 58.67 Feet Per Second.
If sin pheta < 0 and tan pheta < 0 then:
sin(θ) < 0 is another way to say sin(θ) is negative.
tan(θ) < 0 is another way to say tan(θ) is negative.
let's recall that, on the III Quadrant sine and cosine are both negative, and thus the tangent is positive, recall tan(θ)=sin(θ)/cos(θ).
on the IV Quadrant however, sine is negative and cosine is positive, thus tangent is negative.
Steven earns extra money babysitting. He charges $25.00 for 4 hours and $37.50 for 6 hours. Write an equation to represent the relationship. Let x represent the number of hours Steven babysits and y represents the amount he charges. The equation is y=
An easy way to solve this problem is divide $23.25 by 3 or $54.25 by 7. Either way, you get $7.75. This number represents the amount of money he makes for 1 hour. So with that in mind, the correct equation is:
$7.75x = y
I hope this helped! :)))
Candlelight Books kept a record of how its sales increased based on
discounts it offered. The scatterplot shows the results. Based on the line of
best fit, which of the following statements is true? ANSWER PLEASE LIKE RIGHT NOW
Answer:
D
Step-by-step explanation:
We need to understand the meaning of slope. The slope means the rate of change of y with every unit change of x.
In our case, it will be rate of change of sales increase (%) with respect to unit change of discount(%).
The formula for slope is the change in y divided by change in x.
From the 2 points given, we can say that slope is:
[tex]\frac{62-32}{20-10}=\frac{30}{10}=\frac{3}{1}[/tex]
This means "as discount increases 1%, sales increase by 3%". Option D is right.
Answer:
D
Step-by-step explanation:
Given that a function, h, has a domain of -3 ≤ x ≤ 11 and a range of 1 ≤ h(x) ≤ 25 and that h(8) = 19 and h(-2) = 2, select the statement that could be true for h. A. h(13) = 18 B. h(-3) = -1 C. h(2) = 16 D. h(8) = 21
Answer:
C. h(2) = 16
True statement
Step-by-step explanation:
The function has
Domain
-3 ≤ x ≤ 11
Range
1 ≤ h(x) ≤ 25
h(8) = 19
h(-2) = 2
Lets analyze each statement
A. h(13) = 18
False, x = 13 is not part of the domain
B. h(-3) = -1
False, -1 is not part of the range
C. h(2) = 16
True statement
D. h(8) = 21
False, the problem tells us that h(8) = 19
wich number can each term of the equation be multiplied by to eliminate the fractions before solving 6-3/4x+1/3=1/2x+5
Answer:
12x
Step-by-step explanation:
We require the lowest common multiple of 4x, 3 and 2x
the lowest common multiple of 4, 3 and 2 is 12
the lowest common multiple of x and x is x
Combining the two gives lowest common multiple of 12x
Multiplying through by 12x gives
72x - 9 + 4x = 6 + 60x ← no fractions
Which is the correct formula to calculate the volume of a cone?
Answer
πr^2 h/3
Step-by-step explanation:
pi radius squared multiplied by h/3
what are the solutions to the equation 0 equals x squared minus x minus 6 check all that apply
Answer:
I don't understand the question can you add more information or maybe show the page where you got this question?
Step-by-step explanation:
Answer:
the answer is zero
Step-by-step explanation:
What is the slope of the line x = 4?
Answer: Undefined
Step-by-step explanation: Since there is no change in x, and it is a horizontal line, that means that the denominator is zero. Dividing anything with the denominator being 0 will always be undefined (Not to be confused with the numerator, which is just dividing by 0, thus giving you 0.) That means that our answer will be undefined.
given c=(2.4,0.45) and d = (7,-4) find the direction of 5c+4d
Answer:
The direction of 5c + 4d is approximately 19.0° clockwise with
the positive part of x-axis
Step-by-step explanation:
* Lets talk about the direction of a vector
- If the vector is (x , y), then
# Its magnitude is √(x² + y²)
# Its direction is tan^-1 (y/x)
- The direction is the angle between the positive part of x-axis and
the vector
* Lets solve the problem
∵ c = (2.4 , 0.45) and d = (7 , -4)
- To find 5c + 4d , multiply the two coordinates of c by 5 and the two
coordinates of d by 4
# Multiply c by 5
∴ 5c = [5(2.4) , 5(0.45)]
∴ 5c = (12 , 2.25)
# Multiply d by 4
∴ 4d = [4(7) , 4(-4)]
∴ 4d = (28 , -16)
- Lets add 5c and 4d
∴ 5c + 4d = (12 , 2.25) + (28 , -16)
∴ 5c + 4d = [(12 + 28) , (2.25 + -16)]
∴ 5c + 4d = (40 , -13.75)
- The vector is in the 4th quadrant because the x-coordinate is
positive and the y-coordinate is negative
* Find the direction of 5c + 4d
∵ The direction is tan^-1 (y/x)
∴ The direction is tan^-1 (-13.75/40) = -18.97°
* The direction of 5c + 4d is approximately 19.0° clockwise with
the positive part of x-axis
if m
17
27
90
63
** picture is attached below!!
Answer:
Last option: 63
Step-by-step explanation:
You need to observe and analize the triangle XWZ provided in the image attached.
You can observe that the lenght of the side XW of the triangle XWZ is congruent to the lenght of the side ZW. This means that the lenght of the side XW and the lenght of the side ZW are equal.
Therefore, if the measure of the angle ∠X is 63, then the measure of the angle ∠YZW is 63:
[tex]m\angle YZW=m\angle X[/tex]
[tex]m\angle YZW=63[/tex]
This matches with the last option.
What is f(g(13))? A mapping diagram is shown
Answer:
Step-by-step explanation:
It's 32, just follow the row when g=13.
Answer: We want to know f( g (13) ), here g(13) is just a number, so you are evaluating f in a number, first we need to know the value of g(13). Looking in the diagram you can see that g(13) = 16.
So f(g(13)) = f(16)
Also, looking in the diagram you can see that f(16) = 32
So, f ( g (32) ) = 32
Write the following ration as a reduced fraction. Simplify your answer when possible: 14 to 84
Answer:
Hi there!
Since you asked for a simplified fraction, the answer to this question is: 1/6
Step-by-step explanation:
Look at the fraction 14/84, there is a definite similar factor between 14 and 84, 2. So all you do is divide the two numbers by two to reduce the fraction into 7/42
then you divide both 7 and 42 by 7 to get 1/6
Answer:
1/6
Step-by-step explanation:
14 to 84
First lets make it a fraction
14/84
Divide the top and bottom by 14
1/6
Factor the binomial using its GCF: 10x-15x^4
Answer:
5x(2 - 3x³)
Step-by-step explanation:
10x-15x^4
The GCF( Greatest Common Factor) of 10x-15x^4 is 5x
Solve:
10x/5x = 2
-15^4/5x = -3x³
Final answer is
5x(2 - 3x³)
Check
5x(2 - 3x³)
distribute
5x(2) + 5x(-3x³)
10x - 15x^4
Answer:
5x(2 - 3x^3)
Step-by-step explanation:
The GCF is 5x 10x/5x=2 15x^4/5x=3x^3
The side lengths of different triangles are given. Which triangle is a right triangle? A. 6,7,13 B. 21−−√,99−−√,11 C. 10,60,61 D. 35−−√,14−−√,7
Answer:
D
Step-by-step explanation:
By definition for a right triangle with sides a, b, c, where c is the hypotenuse,
the following must be true:
a² + b² = c²
By using this formula on all the choices, we find that only D satisfies this formula
i.e.
for
a = √35 --------> a² = 35
b = √14 --------->b² = 14
c = 7 ------> c² = 49
a² + b² = 35 + 14 = 49 which is equal to the value of c² above
The correct answer is √35 , √14 , 7
What is Pythagoras theorem?Pythagoras' theorem that the square of a right triangle's hypotenuse is equal to the sum of the squares of the other two sides.
p^2 + b^2 = h^2 ( In a right angled triangle)
p = perpendicular of the triangle
b = base of the triangle
h = hypotenuse of the triangle
According to the Pythagoras theorem:
p^2 + b^2 = h^2 (In a right angled triangle)
In Option D
(√35)^2 + (√14)^2 = 7^2
49 = 49
Pythagoras theorem is followed in this triangle, hence it is a right angled triangle.
Learn more about Pythagoras theorem on:
https://brainly.com/question/343682
#SPJ2
use only positive exponents (4vy^-9) * (2x^-6 x^6 y^6) * (3v^4)
[tex]\bf ~\hspace{7em}\textit{negative exponents} \\\\ a^{-n} \implies \cfrac{1}{a^n} ~\hspace{4.5em} a^n\implies \cfrac{1}{a^{-n}} ~\hspace{4.5em} \cfrac{a^n}{a^m}\implies a^na^{-m}\implies a^{n-m} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ (4vy^{-9})\cdot (2x^{-6}x^6y^6)\cdot (3v^4)\implies 4vy^{-9}2x^{-6}x^6 y^6 3v^4 \\\\\\ 4\cdot 3\cdot 2vv^4y^{-9}y^6x^{-6}x^6 \implies 24v^{1+4}y^{-9+6}x^{-6+6}\implies 24v^5y^{-3}x^0 \\\\\\ 24v^5\cdot \cfrac{1}{y^3}\cdot 1\implies \cfrac{24v^5}{y^3}[/tex]
If y is 5 when x is 2.5 and y varies directly with x, find y when x is 10
Answer:
If x varies directly as y, then x=ky. y=5 and x=2.5 are substituted into x=ky to find k.
2.5=5k
k=2.5/5
k=5.
K =5 is substituted in x=ky to find y where x is 10.
x=5y
10=5y
y=10/2
y=2
Answer: The required value of y is 20.
Step-by-step explanation: Given that y is 5 when x is 2.5 and y varies directly with x.
We are to find the value of y when x is 10.
According to the given information, we can write
[tex]y\propto x\\\\\Rightarrow y=kx~~~~~~~~~~[\textup{where k is the constant of proportionality}][/tex]
When y = 5 and x = 2.5, then we have
[tex]5=k\times2.5\\\\\Rightarrow k=\dfrac{5}{2.5}\\\\\Rightarrow k=2.[/tex]
So, we get
[tex]y=2x.[/tex]
Therefore, when x = 10, then the value of y is
[tex]y=2\times10=20.[/tex]
Thus, the required value of y is 20.
Find the solution set
2x^2 -2x -4 =0
please use a comma to separate your answer.
Answer:
2,-1
Step-by-step explanation:
2x^2 -2x -4 =0
Factor out a 2
2(x^2 -x-2) =0
What 2 number multiply to -2 and add to -1
-2*1 = -2
-2 +1 = -1
2(x-2) (x+1) =0
Using the zero product property
x-2 = 0 x+1 = 0
x-2+2=0+2 x+1-1=0-1
x=2 x=-1
Two lines that do not intersect are skew. Always Sometimes or Never
Answer:
Never.
Step-by-step explanation:
(50 points! please help me!)a store was trying to sell a bed set for $475. after a while, the marked the price tag down 35% off . if tax is 5% (of the sale price), how much would the bed set cost?
Answer:
$324.19
Step-by-step explanation:
First, find the price when marked down. Multiply 475 with 0.35:
475 x 0.35 = 166.25
Subtract 166.25 from the total cost:
475 - 166.25 = 308.75
Now, solve for the tax. Tax is 5% (0.05). Multiply 0.05 with the new cost:
308.75 x 0.05 = ~$15.44
Add 15.44 to the sales price:
308.75 + 15.44 = $324.19
$324.19 is your answer.
~
What is a Probabibility
Answer:
Probability
Step-by-step explanation:
Probability is the likelihood or chance of an event occurring. For example, the probability of flipping a coin and it being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail). We write P(heads) = ½ .
Simplify the expression 3x3^ 648x 4 y8
Answer: B.) 18x^2y^2 3squareroot 3xy^2
Step-by-step explanation:
Answer:
B. [tex]18x^{2} y^{2} \sqrt[3]{3xy^{2} }[/tex]
Step-by-step explanation:
To simplify this expression, use the fact that the root of a number (in this case is the cube root) can be expressed like a fractional exponent (1/3). Using this, the expression changes to:
[tex]3x(648x^{4}y^{8})^{(1/3)}[/tex]
Next step is to put the exponent inside the parenthesis:
[tex]3x(648^{1/3}x^{4/3}y^{8/3})[/tex]
Find the prime factorization of 648:
648 =3⋅3⋅3⋅3⋅2⋅2⋅2
648=3⁴∗2³
[tex]3x(3^{(4/3)}2^{(3/3)}x^{4/3}y^{8/3})[/tex]
Change all improper fractions in exponent to mixed fractions
[tex]3x(3^{1(1/3)}2^{1}x^{1(1/3)}y^{2(2/3)})[/tex]
Separate integers exponents from fractional:
[tex]3x(3\cdot3^{(1/3)}\cdot 2 \cdot x\cdot x^{1/3}\cdot y^{2}\cdot y^{2/3})[/tex]
Re-arrange (all numbers with fractional exponents must be together):
[tex]3x(3 \cdot 2\cdot x\cdot y^{2}\cdot 3^{(1/3)}x^{1/3}y^{2/3})[/tex]
Multiply the 3x with the numbers that have an integer exponent:
[tex]18x^{2}y^{2}(3^{(1/3)}x^{1/3}y^{2/3})[/tex]
Take out the exponent 1/3 from the parenthesis:
[tex]18x^{2}y^{2}(3xy^{2})^{1/3}[/tex]
And change the representation of the root to use a radical symbol
[tex]18x^{2} y^{2} \sqrt[3]{3xy^{2} }[/tex]
A. What is the area of the base? Use complete sentences to explain your reasoning.
B. What is the volume of the prism? Use complete sentences to explain your reasoning.
Answer:
For the first answer (A)
The area of the base is the area of the 8 by 4 rectangle, minus the missing 2 by 2 square in the top-right. This is 8*4-2*2=32-4=28 square centimeters.
For the second answer (B)
The volume of the prism is the base area multiplied by the height, or 28*10=280 cubic centimeters.
Answer:
Area = 28 cm² and Volume = 280 cm³
Step-by-step explanation:
A. Area of the base of the prism = Area of rectangle with dimensions 4 × 8 cm. minus area of a rectangle with dimensions 2×2 cm.
Area = 4 × 8 - 2 × 2
= 32 - 4 = 28 cm²
B. Volume of the given prism = Volume of full prism with dimensions 10 × 4 × 8 cm. minus volume of small prism (missing) having dimensions 2×2×10 cm.
Volume = 10 × 4 × 8 - 2 × 2 × 10
= 320 - 40
= 280 cm³
Area = 28 cm² and Volume = 280 cm³
Find the 9th term of the following geometric sequence 1 -3 9 -27
Answer: The 9th term is 6561
Step-by-step explanation:
The geometric sequences have the following formula
[tex]a_n = a_1(r)^{n-1}[/tex]
Where [tex]a_1[/tex] is the first term of the sequence and r is the common ratio between the consecutive terms of the sequence
In this case the sequence is 1 -3 9 -27
So [tex]a_1 = 1[/tex]
Observe that the common ratio r is:
[tex]r=\frac{-3}{1}=\frac{9}{3}=\frac{-27}{9}=-3[/tex]
So the formula is:
[tex]a_n = (-3)^{n-1}[/tex]
We want to find [tex]a_9[/tex]
[tex]a_9 = (-3)^{9-1}[/tex]
[tex]a_9 = (-3)^{8}=6561[/tex]