The function y = -2x + 9 have ordered pairs (-4, 17), (-2, 13), (0, 9), (2, 5) and (4, 1)
What is an equation?An equation shows how two or more numbers and variables are related to each other.
The standard linear equation is:
y = mx + b
Where m is the rate of change and b is the y intercept
Given that:
y = -2x + 9
When x = -2; y = -2(-2) + 9 = 13
When x = 0; y = -2(0) + 9 = 9
When x = 2; y = -2(2) + 9 = 5
When x = 4; y = -2(4) + 9 = 1
The function y = -2x + 9 is a linear equation
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Solve for y
A) 6
B) 6 sqrt 3
C) 4
D) 4 sqrt 3
Answer:
A) 6
Step-by-step explanation:
in a 30-60-90° Δ the ratio of side lengths is 1 : [tex]\sqrt{3}[/tex] : 2
so we can set up this proportion and cross-multiply:
[tex]\sqrt{3}[/tex] / 1 = y / 2[tex]\sqrt{3}[/tex]
y = 2[tex]\sqrt{3}[/tex][tex]\sqrt{3}[/tex] which is 2x3 or 6
I'm stuck! help! please?
Answer:
x = 2
Step-by-step explanation:
2 to the second power is 4. 4 subtracted by 4 is zero.
Get the standard form and slope-intercept form
1. y -2 = 2/3 (x - 1)
2. y + 4 = - 4/5 (x+3)
Answer:
1. y-2=2/3(x-1) slope: y=2/3x+4/3 standard: 2x-3y=-4
Step-by-step explanation:
Gracie's grandmother gave her 40 stamps.
Then, each month Gracie adds 30 stamps to her collection.
How many stamps does Gracie have after 3 months?
Enter your answer in the box.
Please answer this !!! I will give u points justttt please answer I really need help
Answer:
130
Step-by-step explanation:
If you start out with 40 stamps thanks to Garcie's grandma, than are given 30 for every month in the span of 3 months, 30 x 3 is 90, plus 40 is 130.
Answer:
i think its 130
Step-by-step explanation:
30×3 is 90 then add the 40 that the grandmother gave
Find the equation of the straight line with the
slope m= 1/2 and the y intercept is -1
Answer:
y = [tex]\frac{1}{2}[/tex] x - 1
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 = [tex]\frac{1}{2}[/tex] and c = - 1 , then
y = [tex]\frac{1}{2}[/tex] x - 1 ← equation of line
3. A sample of 10 networking sites for a specific month has a mean number of visits of 26.1 and a sample standard deviation of 4.2. Find a 99% confidence interval of the population mean.
The confidence interval is (22.68,29.52).
In statistics, a confidence interval describes the likelihood that a population parameter would fall between a set of values for a given percentage of the time. Confidence ranges that include 95% or 99% of anticipated observations are frequently used by analysts. Therefore, it can be concluded that there is a 95% probability that the true value falls within that range if a point estimate of 10.00 is produced using a statistical model with a 95% confidence interval of 9.50 - 10.50.
n = 10
x = 26.1
s = 4.2
Two-sided confidence interval :
CI = [tex](x-\frac{z*s}{\sqrt{n}},x+\frac{z*s}{\sqrt{n} } )[/tex]
= [tex](26.1-\frac{2.576*4.2}{\sqrt{10}},26.1+\frac{2.576*4.2}{\sqrt{10}} )[/tex]
= (26.1−3.42,26.1+3.42)
= (22.68,29.52)
Hence, the confidence interval is (22.68,29.52).
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find the value of x. No Links or scams please. Thanks!
Answer:
X=8
use sin 30 and cross multiply
Answer:
C) x=8
Step-by-step explanation:
For a 30-60-90 triangle, the hypotenuse is equal to double the length of the short side, and the longer leg is equal to the short side times the square root of 3. Therefore, x=2(4)=8
HELP PLEASE DONT IGNORE Benny says you can write 0.000000215 as
[tex]2.15 \times {10}^{7} [/tex]
In scientific notation. Do you agree with him? Explain why or why not?
please no links and don't answer unless your gonna help
the points on the graph were (1,-2) and (3,2). what was the slope?
Answer:
2
Step-by-step explanation:
slope equation: y2-y1/x2-x1
2-(-2)/3-1=4/2=2
Find the distance between the points.
(2,7),(2,9)
The distance is
Answer:
distance is 2 units
Step-by-step explanation:
9-7=2
What is the difference between a problem and an algorithm?
A problem is just a function or even a mapping of inputs to outputs. An algorithm is a recipe for solving a problem with concrete and unambiguous steps.
What is algorithm?In mathematics and computer science, an algorithm is a finite sequence of rigorous instructions used to solve a class of specific problems or perform a computation.
Algorithms are data calculation and processing specifications. More advanced algorithms can use conditionals to divert code execution through various paths (referred to as automated decision-making) & deduce valid inferences (referred to as automated reasoning), eventually achieving automation.
Alan Turing used metaphorical terms like "memory", "search," and "stimulus" to describe machines.
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Where is ( 0 , -5 ) on the coordinate plane?
Quadrant III
Quadrant II
x axis
y axis
origin
Quadrant IV
Quadrant I
Answer:
y - axis
hope it is helpful to you
Answer:
y axis
Step-by-step explanation:
It lies in y axis because X=0
How the Earth rotates around the sun and moon?
The Earth orbits the Sun and rotates around its own axis. The Moon orbits the Earth and is held in place by the Earth’s gravity. This is why the length of a day is gradually increasing over time.
The Moon’s gravitational pull causes the tides, which is why the ocean’s water level rises and falls. The gravitational pull of the Moon also affects the Earth’s rotation by slowing it down slightly. This is why the length of a day is gradually increasing over time.
The Earth orbits the Sun and rotates around its own axis, while the Moon orbits the Earth and is held in place by the Earth’s gravity. The Moon’s gravitational pull causes the tides and affects the Earth’s rotation by slowing it down slightly, resulting in a gradual increase in the length of a day.
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i need to help on finding the variable !!!!?
Answer:
10cm
Step-by-step explanation:
Answer:
x ≈ 16.4 cm
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan26° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{8}{x}[/tex] ( multiply both sides by x )
x × tan26° = 8 ( divide both sides by tan26° )
x = [tex]\frac{8}{tan26}[/tex] ≈ 16.4 cm ( to 1 dec. place )
Which of these characteristics of a star make it most likely to become a black hole? Select the two correct answers.
A. Its mass is equal to that of the sun.
B. It has an abundant supply of hydrogen.
C. Its mass is greater than 20 times the mass of the sun.
D. It is dying.
The two characteristics of a star to become a black hole are:
Its mass is greater than 20 times the mass of the Sun.It is dying.The correct options are C and D.
When a star has consumed all its fuel (like hydrogen), that is to say, when it is at the end of its life, it can become a black hole. For this to happen, the mass of the star must be greater than 20 times the mass of the Sun. If a star is at the end of its life cycle but has a mass that is less than 20 times the Sun's mass, it will not become a black hole.
The given options:
A. Its mass is equal to that of the sun. False
Its mass must be greater than 20 times the mass of the Sun.
B. It has an abundant supply of hydrogen. False
When it has an abundant supply of hydrogen, the star is at the beginning or the middle of its life cycle, and to become into a black hole it must be at the end of it.
C. Its mass is greater than 20 times the mass of the Sun. True
Yes, its mass must be greater than 20 times the mass of the Sun.
D. It is dying. True
The star must have no more fuel to continue its life cycle.
Therefore, options C and D are correct.
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I hope it helps you!
Answer:
C and D
Step-by-step explanation:
I just took the test lol, I hope you got 100%, also does like everyone on this website go to connexus or what lol
What function f(x) has the property where f'(x) is equal to 2f(x)?
Answer:
u not get the answer
Step-by-step explanation:
What is the solution?
Answer:
C that is the answer hope I helped you guys
David owns a food truck that sells tacos and burritos. He only has enough ingredients to make 87 tacos or burritos.Write an inequality that could represent the possible values for the number of tacos sold, tt, and the number of burritos sold, bb, that would satisfy the constraint.
Help plis and thank you
Find the value of x in the triangle shown below
Answer:
61.31
Step-by-step explanation:
By using sinus rule
I need help with six and seven
Answer: Perimeters Are Shown Below
Step-by-step explanation:
6. 2 Hexagons; 1+1+1+1+1+1+1+1+1+1 OR 1 x 10
6. 3 Hexagons; 1+1+1+1+1+1+1+1+1+1+1+1+1+1 OR 1 x 14
7. 2 Pentagons; 1+1+1+1+1+1+1+1 OR 1 x 8
7. 3 Pentagons; 1+1+1+1+1+1+1+1+1+1+1 OR 1 x 11
Solve the equation for all values of x.
(8x+9)(49x^2-100)=0
Answer:
[tex]x = \frac{-9}{8} , \frac{-10}{7} , \frac{10}{7}[/tex]
Step-by-step explanation:
8x+9=0
8x=-9
[tex]x = \frac{-9}{8}[/tex]
or
[tex]49x^{2}-100 = 0[/tex]
[tex](7x)^{2} -10^{2} =0[/tex],
[tex](7x+10)(7x-10)=0[/tex]
[tex]7x+10=0, 7x-10=0[/tex]
[tex]7x=-10, 7x=10[/tex]
[tex]x=-\frac{-10}{7}[/tex], [tex]x = \frac{10}{7}[/tex]
Need help with school please
Answer:
x = 6
Step-by-step explanation:
The 2 angles are vertical angles and are congruent , so
11x - 14 = 7x + 10 ( subtract 7x from both sides )
4x - 14 = 10 ( add 14 to both sides )
4x = 24 ( divide both sides by 4 )
x = 6
simplify.
x⁴y²/x²y*6
Answer:
x^2y^-4
Step-by-step explanation:
Answer:
i think the answer is x²y/6
3 1/3 + (-2 1/4) + 1 5/6 = ?
Answer: 2 11/12
Step-by-step explanation: 3 1/3+−2 1/4+1 5/6
10/3−2 1/4+1 5/6
10/3−9/4+1 5/6
13/12+1 5/6
13/12+11/6
35/12
2 11/12
Answer:
Here is the answer. hope this helps you
If you take a number of times by four then subtract one you get the same is it you took the number standby shift then organise what is the number
The unknown number deduced by solving the equation 4x - 1 = 6x +9 is -5.
What is an equation?
A mathematical definition of an equation is a claim that two expressions are equal when they are joined by the equals sign ("=").
Let the unknown number be x.
First multiply the number by 4 = 4x
Then subtract 1 from it = 4x -1
This results in the same number as when the number is multiplied by 6 and 9 is added to it = 6x + 9.
So the equation will be -
4x - 1 = 6x +9
4x - 6x = 9 + 1
-2x = 10
-x = 10/2
x = -5
Therefore, the number obtained is -5.
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If you take a number, times by 4 then subtract 1. You get the same as if you took the number, times by 6 then add 9. What is the number?
Yaritza is going to see a movie and is taking her 4 kids. Each movie ticket costs $13 and there are an assortment of snacks available to purchase for $4.50 each. How much total money would Yaritza have to pay for her family if she were to buy 7 snacks for everybody to share? How much would Yaritza have to pay if she bought xx snacks for everybody to share?
Answer:
Yaritza will have to pay $83.50 dollars to go to the movies.
It will cost $31.50 for 7 snacks for her family to share.
Step-by-step explanation:
PLEASE HELP ME, ILL BRAINLIEST YOU ill give u 30 points if you help
Answer:
[tex]x = 58[/tex]
[tex]y = 90[/tex]
Step-by-step explanation:
This is a rhombus becuase it a quadralterial and it has four right triangles, and it diagonals bisect each others so it cant be a trapezoid, and paralleolgram. and it doesnt have four right corner angles so it cant be a square or rectangle or kite.A rhombus inner angle measure is 90 degrees.
So
[tex]y = 90[/tex]
This means the upper left angle of the top triangle measure is 58 becuase triangle interior theorem.
Since a rhombus bisects angles, angle x measure 58.
PLEASEEEEE CAN SOMEONE HELP MEEE??? (iI have TWO questions PLSPLSPLSPSLPLSPLSPLSP)
3.) What happened to Patroclus at the end of yesterday's reading?
He won the battle.
He went to Mt. Olympus to talk to Zeus.
He died.
-------------------------------------------------------------------------------------------------------
4.Who was Agamemnon trying to persuade to come fight with him again?
Patroclus
Achilles
Odysseus
Hector
Answer correctly for brainly (8th grade math)
Answer:
plays an instrument/plays sports = 0.46
plays an instrument/does not play sports = 0.54
does not play an instrument/plays sports = 0.73
does not play an instrument/does not play sports = 0.27
Step-by-step explanation:
plays an instrument/plays sports = 6 divided by 13
plays an instrument/does not play sports = 7 divided by 13
~ you divide by 13 since the row's numbers add up to 13
does not play an instrument/plays sports = 8 divided by 11
does not play an instrument/does not play sports = 3 divided by 11
~ you divide by 11 since the row's numbers add up to 11
can someone help with this please ill give brainliest
Answer:1) 43 2)53 3)22 4)23
Step-by-step explanation:
What is an equation of the line that passes through the points (2, –6) and (1, -1)?
Answer:
x axis
Step-by-step explanation:
Answer:
y=-5x+4
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-1-(-6))/(1-2)
m=(-1+6)/-1
m=5/-1
m=-5
y-y1=m(x-x1)
y-(-6)=-5(x-2)
y+6=-5(x-2)
y=-5x+10-6
y=-5x+4