Answer:
No solution
Step-by-step explanation:
3x - 7+9 - 2x = x+2
3x-2x-x=2+7-9
0=0
No solution
Which two values of x are roots of the polynomial below?
5x2 - 5x+1
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[tex]5 {x}^{2} - 5x + 1 = 0[/tex]
[tex](x - \frac{5 + \sqrt{5} }{10} )(x - \frac{5 - \sqrt{5} }{10} ) = 0 \\ [/tex]
Thus :
[tex]x = \frac{5 + \sqrt{5} }{10} \\ [/tex]
[tex]x = \frac{5 - \sqrt{5} }{10} \\ [/tex]
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Factor this expression completely, then place the factors in the proper location on the grid.
x3 - 1
Answer:
(x - 1)(x^2 + x + 1)
Step-by-step explanation:
they said it was the answer.
The statue or liberty is 305 feet tall measuring from the ground to the tip of the torch if the model is 1/100 the actual size of the staute of liberty, how tall is the model?
Given:
Height of statue or liberty from the ground = 305 feet
Model is [tex]\dfrac{1}{100}[/tex] the actual size of the statue of liberty.
To find:
The height of the model of statue.
Solution:
According to the question,
Model = [tex]\dfrac{1}{100}[/tex] of the actual size
[tex]=\dfrac{1}{100}\times 305[/tex]
[tex]=3.05[/tex]
Therefore, the height of the model of statue is 3.05 feet.
Wz intersects triangle abc at points x and y
Answer:
????????????????????????????????
Step-by-step explanation:
PLZ HURRY I ONLY HAVE 27 MINUTES TO GET THIS DONE
The owner of a local music store was interested in knowing which type of music most of his customers preferred. From a list of his regular customers the owner picked a name at random and every sixth person on the list after that, going through the list and returning to the name he started with. Was this a random sample and if so, which sampling method was used? A. Yes, he used simple random sampling. B. Yes, he used systematic random sampling. C. Yes, he used stratified random sampling. D. No, he did not choose a random sample.
Answer:
definitely b.
Step-by-step explanation:
Answer:
I'm just going with the person above me that the answer is B. Yes, he used systematic random sampling.
Step-by-step explanation:
Tell me if I'm wrong.
need help asap please
Answer: f = 12.5
Step-by-step explanation:
[tex]f = \frac{25}{2} \\decimal form = 12.5\\ mixed fraction form 12 \frac{1}{2}[/tex]
PLEASE HELP
(image included)
Answer:
Cameron found 23 quarters and 57 dimes.
Step-by-step explanation:
Let the number of quarters Cameron found = Q
And the number of dimes = D
Since, total number of coins were 80,
Q + D = 80 -----(1)
Total amount of the coins was $11.45,
0.1D + 0.25Q = 11.45
10D + 25Q = 1145
2D + 5Q = 229 -----(2)
Equation (1) multiplied by 2 then subtracted by equation (2),
(2D + 5Q) - 2(Q + D) = 229 - 2(80)
(2D - 2D) + (5Q - 2Q) = 229 - 160
3Q = 69
Q = 23
From equation (1),
23 + D = 80
D = 57
Cameron found 23 quarters and 57 dimes.
wich expression is equivelent to 4(3+5)-3times9 to the power of 2
Answer:
-211
Step-by-step
What are the roots of the polynomial equation x cubed minus 5 x + 5 = 2 x squared minus 5? Use a graphing calculator and a system of equations. Round noninteger roots to the nearest hundredth.
–3, –5
–2.24, –2, 2.24
–2.24, 2, 2.24
3, 5
Answer:
c
Step-by-step explanation:
–2.24, 2, 2.24
The solution to the equation of the polynomial function [tex]x^3 - 5x + 5 = 2x^2 - 5[/tex] is (c) –2.24, 2, 2.24
How to determine the roots of the polynomial?The function is given as:
[tex]x^3 - 5x + 5 = 2x^2 - 5[/tex]
Split the function.
So, we have:
[tex]y = x^3 - 5x + 5[/tex]
[tex]y = 2x^2 - 5[/tex]
Using a graphing calculator, we have the x coordinate at the point o intersection of both equations to be
x = –2.24, 2, 2.24
Hence, the solution to the equation is (c) –2.24, 2, 2.24
Read more about system of equations at:
https://brainly.com/question/14323743
#SPJ2
The sum of four times a number and -3 is greater
than 16
Answer:
2+2+2+2=8-3=5
Step-by-step explanation:
so what about This
Answer:
it is 4x + -3 < 16
I got a 98% on my midterm im not boasting just congratulate me and it was in SPANISH im shoooook here are free 100 points
oh and so this don't get taken down answer this:
what is 4 x 203
Answer:
812
Step-by-step explanation:
Answer:812
Step-by-step explanation: multiply 4 by 203
100 POINTS!!! HELP PLEASE!!
(12-15) Q(x) = 2x^4 - 7x^3 + 6x^2 + x -2
1. Use synthetic division to determine whether (x-1) is a factor of Q(x).
2. Use synthetic division in to find Q(-2)
3. List all of the possible rational roots of Q(x) = 0
4. Find all of the real roots Q(x) =0
Answer:
Step-by-step explanation
What is an equation in point-slope form of the line that passes through the point (4, −1) and has slope 6?
Answer:
y + 1 = 6(x - 4)
Answer: y + 1 = 6(x - 4)
Select all that apply. What are some uses for the distance formula? Finding the perimeter of polygons. Finding the area of rectangles. Finding the equation of a circle. Finding the midpoint of segments. Finding how much gas you will need on a trip.
Answer:
Everything except the finding the midpoint
Step-by-step explanation:
If the question states the points of a shape, you can find the perimeter and the area of the polygon because you would know the dimensions and the lengths of each side, but in the options, it says the area of a rectangle, and it doesn't have to be a rectangle
You can find the equation of the circle, by finding the diameter of the circle and the radius. With the diameter, you would be able to find the centre of the circle and then you need to divide the diameter by two to get the radius.
For the midpoint, you use the midpoint formula. You just need to sub in the points into the formula and you would get the midpoint
When you are given two points on a graph (or worded problem), and it says that for every x number of km it uses y amount of gas and the question asks to find how much gas is needed in between these two points, you can do this. Find the distance between the two points and then use algebra to work out the amount of gas required
Answer:
12 z abd and also 097
Step-by-step explanation:
4x^2-21x-18=0
Find the discriminate
a = 4, b = -21, c = -18
to keep from getting "mixed up", evaluate the discriminant first ...
b<sup>2</sup> - 4ac = (-21)<sup>2</sup> - 4(4)(-18) = 729
sqrt(729) = 27
x = (21 +/- 27)/8
x = -3/4, x = 6
since the discriminant is a perfect square, the original quadratic will factor ...
4x<sup>2</sup> - 21x - 18 = 0
(4x + 3)(x - 6) = 0
x = -3/4, x = 6
Answer:729
Step-by-step explanation: Use the values of a, b and c to find the discriminant. Which is 729
If=3,=4=2,determine2+4.
Determine the area of the shaded region (grey) in the quadratic form.
Hint: Shaded area = (gray rectangle area) – (white rectangle area)
Answer:
The area of shaded region is: [tex]13x^2+6x-15[/tex]
Step-by-step explanation:
We can see in the diagram that
[tex]Length\ of\ gray\ rectangle = l_g = 3x+5\\Width\ of\ gray\ rectangle = w_g = 4x-3[/tex]
The area of rectangle is given by:
Area = Length * width
Now for gray rectangle
[tex]A_g = l_g * w_g\\= (3x+5)(4x-3)\\= 3x(4x-3)+5(4x-3)\\= 12x^2-9x+20x-15\\=12x^2+11x-15[/tex]
For White Rectangle:
[tex]Length = l = 5-x\\Width = w = x\\A_w = l * w\\A_w = (5-x)(x)\\= 5x-x^2[/tex]
Now,
The area of shaded region will be calculated by subtracting the area of white triangle from the gray triangle.
[tex]A_s = A_g - A_w\\= (12x^2+11x-15) - (5x-x^2)\\=12x^2+11x-15-5x+x^2\\=12x^2+x^2+11x-5x-15\\=13x^2+6x-15[/tex]
Hence,
The area of shaded region is: [tex]13x^2+6x-15[/tex]
PLEASE HELP!!!Which statement is true? Select all that apply.
The relationship is proportional.
The slope is -6.
The slope is negative.
The y-intercept is -3.
The equation of the line is y = -3x
Answer:
"The relationship is proportional."
"The relationship is proportional."
"The equation of the line is y = -3x"
Step-by-step explanation:
First, a proportional relationship can be written as:
y = k*x
where k is called the constant of proportionality. (or the slope)
You can see that if we take x = 0, we have
y = k*0 = 0
Then this type of line always passes through the point (0, 0).
And in the graph you can see that this line does that, then:
"The relationship is proportional." is true.
We also can see that as x increases, the value of y decreases, this must imply that k is a negative number, then:
"The slope is negative." is true.
To find the value of the slope, we can take two points that belong to the line.
I will choose:
(0, 0) and (2, -6)
For the slope, we just take the quotient between:
Δy = -6 - 0 = -6 (the difference in the y-components)
Δx = 2 - 0 = 2 (the difference in the x-components)
the slope is:
k = Δy/Δx = -6/2 = -3
Then the slope is -3, and we can write the equation as:
y = -3*x
Then:
"The equation of the line is y = -3x" is true.
The first element in an arithmetic sequence is 2. Its twenty-fifth is 14. Find the value of n so that a - 6.
Answer:
hindi ko alam yan ha ano
Answer:
the difference between numbers of sequence is 0.5 or 1/2
here,
the formula to find n terms is 0.5n+1.5
this may help you(:
Showing algebraic support, find the value of x.
Answer:
x = 52.5
Step-by-step explanation:
The triangle on the left has 2 congruent sides, thus is isosceles
The base angles of an isosceles triangle are also congruent, thus
x = [tex]\frac{180-75}{2}[/tex] = [tex]\frac{105}{2}[/tex] = 52.5
PLEASE HELP QUICK FIND THE y-intercept and the slope and the roc
please don’t do it for the points i actually need help
Answer:
4.5 or 5
Step-by-step explanation:
Acording to your graph it would be whatever point that is one the Y line which is going vertical.
How many push ups will Scott do on day 10 and 20?
How many push ups can scott expect after 4 weeks?
Lisa is also including pushups in her workout and says she does more push ups than Scott because she does fifteen push ups each day, is she correct?
If any one is answering this can you explain how you got the answer.
Answer:I think 57Step-by-step explanation:
Cuz its adding 2 every time then I just did 28 x 2 and added the extra. Does that make sense?
4 x 8 = 28
28 x 2 = 56
56 + 1 = 57
Assume that y varies directly with x. If y=−4 when x=2, find y when x=−6. Enter in any fractions using a / (e.g. "1/2" is the same as 1^/2).
Answer: 12
Step-by-step explanation:
This is a direct proportion and we use the formula:
y = kx
If y = −4 when x=2, we need to find the constant of proportionality. This will be:
y = kx
-4 = 2k
k = -4/2
k = -2
To find y when x=−6 guess this:
y = kx
y = -2 × -6
y = 12
Hence, The value of y = 12 when x = -6.
Given that , Y varies directly with x .
If y=−4 when x=2,
Find y when x=−6.
According to the question,
This is a direct variation , y = kx
If,
y = −4 when x=2,
y = kx
-4 = 2k
[tex]k = \frac{-4}{2}[/tex]
k = -2
To find ;
y when x = −6
y = kx
y = (-2) (-6)
y = 12
Hence, The value of y = 12 when x = -6.
For more information about Direct variation click the link given below.
https://brainly.com/question/13977805
Priya and Han are biking in the same direction on the same path.
1. Han is riding at a constant speed of 16 miles per hour. Write an expression that shows how many miles Han has gone after t hours.
miles
2. Priya started riding a half hour before Han. If Han has been riding for t hours, how long has Priya been riding?
hours
3. Priya is riding at a constant speed of 12 miles per hour. Write an expression that shows how many miles Priya has gone after Han has been riding for t hours.
4. Use your expressions to find when Han and Priya meet.
t=
They meet after Han rides for
hours and Priya rides for
hours.
Answer:
1. V = D/t => D=Vt. as V = 16mph
D = 16t
2. Prya has been riding for t+½ hours
3. Prya has gone 12(t+½) miles
4. When Prya and Han meet
16t = 12t +6
4t = 6
t = 3/2 hours
Naomi has a toy car collection of 300 toy cars. She keeps 243 of the toy cars on her wall. What percentage of Naomi's toy car collection does she keep on her wall?
Answer:81% or .81
Step-by-step explanation:
81% or .81
Explanation:
243 ÷ 300 = .81
Answer:
the answer is 81%
Step-by-step explanation:
i used google and an answer key
mike and some of his friends went camping. they went on a nature hike and fund 25 different insects.mike found 15 of those insects .what is the ratio of insects mike found to th insects found by the group
Answer:
15 to10
Step-by-step explanation:
Need help with this slide about proofs explanation would be nice aswell.
Answer:
1. AB ~= DF
2. Definition of Congruent
3. Reflexive Property of Congruency
4 BD=BD
6. AB+BD=AD; DF+BD=BF
7. Substitution Property of Equality
8. Definition of Congruent
Step-by-step explanation:
1. The given always goes first, and that's the first reason, so AB ~= DF must be the first statement (that should be the congruency symbol).
2. The definition of congruent is that if they are congruent then they are equal. Since that statement made two congruent lines equal, it must be the definition.
3. The reflexive property means something is congruent to itself, and BDis BD, therefore it is the reflexive property.
4. Remember if something is congruent then it is equal.
6. The segment addition postulate states that if we are given two points on a line segment, then AB+AC=AC.
7. In this statement AD was substituted for DF+BD. This can be done because of AB=DF and BD=BD as aforementioned.
8. If two things are congruent then they are equal by definition of congruency.
Need help with this please
Answer:
The answer is 25.
Step-by-step explanation:
hope this helps
Please answer asap, thank you so much.
Find the slope
Edna has a segment with endpoints F(4,9) and G(7,2) that is divided by a point H
Answer:
1/4 is your answer.
Step-by-step explanation:
