4x^2 -1= 6x
Use the quadratic formula
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Related Questions
help me if you truly know this...
Answers
Answer: 3
Step-by-step explanation:
Triangle DCB is similar to Triangle ECA by AAA.
Since EA and DB are parallel lines, that makes Angle CDB = Angle CEA and Angle CBD = Angle CAE because they are corresponding angles.
Since the two triangles are parallel, we can set up a ratio.
[tex]\frac{CD}{CE} = \frac{CB}{CA}[/tex]
Now we plug in the numbers given.
[tex]\frac{6}{8} = \frac{9}{CA}[/tex]
Now we can cross multiply
6CA = 72
Therefore, CA = 12.
AB = CA - CB
So AB = 12 - 9
AB = 3
what is 8 3/4 ÷ 2 7/8 (show ur work)
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Answer:
[tex] \displaystyle{8 \frac{3}{4} \div 2 \frac{7}{8} }[/tex]
Convert the mixed fractions into improper fractions.
[tex]\displaystyle{ \frac{8 \times 4 + 3}{4} \div \frac{8 \times 2 + 7}{8} }[/tex]
[tex]\displaystyle{ \frac{32 + 3}{4} \div \frac{16 + 7}{8} }[/tex]
[tex]\displaystyle{ \frac{35}{4} \div \frac{23}{8} }[/tex]
[tex]\displaystyle{ \frac{35}{4} \times \frac{8}{23} }[/tex]
[tex]\displaystyle{ \frac{35}{ \cancel4} \times \frac{ \cancel8 {}^{2} }{23} }[/tex]
[tex] \displaystyle{ \frac{35 \times 2}{23} }[/tex]
[tex] \displaystyle{ \frac{70}{23} }[/tex]
[tex] \displaystyle{3 \frac{1}{23} }[/tex]
Is 7/10 greater than 6/12
Answers
Answer:
Yes
Step-by-step explanation:
6/12 is 1/2 when you simplify
7/10 is more than 5/10 (one half of ten)
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Answer : Yes
Explanation : 6/12 Is 1/2 When You Simplify
7/10 Is More Than 5/10 (One Half Of Ten)
5/10 Is The Same As 1/2 Btw
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◊ YusuCr ◊
pls help ill give brainliest the picture is dow below
Answers
Answer:
B
Step-by-step explanation:
there are 30 buildings...
5. Show that the following points are collinear. a) (1, 2), (4, 5), (8,9)
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Label the points A,B,C
A = (1,2)B = (4,5)C = (8,9)Let's find the distance from A to B, aka find the length of segment AB.
We use the distance formula.
[tex]A = (x_1,y_1) = (1,2) \text{ and } B = (x_2, y_2) = (4,5)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(1-4)^2 + (2-5)^2}\\\\d = \sqrt{(-3)^2 + (-3)^2}\\\\d = \sqrt{9 + 9}\\\\d = \sqrt{18}\\\\d = \sqrt{9*2}\\\\d = \sqrt{9}*\sqrt{2}\\\\d = 3\sqrt{2}\\\\[/tex]
Segment AB is exactly [tex]3\sqrt{2}[/tex] units long.
Now let's find the distance from B to C
[tex]B = (x_1,y_1) = (4,5) \text{ and } C = (x_2, y_2) = (8,9)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(4-8)^2 + (5-9)^2}\\\\d = \sqrt{(-4)^2 + (-4)^2}\\\\d = \sqrt{16 + 16}\\\\d = \sqrt{32}\\\\d = \sqrt{16*2}\\\\d = \sqrt{16}*\sqrt{2}\\\\d = 4\sqrt{2}\\\\[/tex]
Segment BC is exactly [tex]4\sqrt{2}[/tex] units long.
Adding these segments gives
[tex]AB+BC = 3\sqrt{2}+4\sqrt{2} = 7\sqrt{2}[/tex]
----------------------
Now if A,B,C are collinear then AB+BC should get the length of AC.
AB+BC = AC
Let's calculate the distance from A to C
[tex]A = (x_1,y_1) = (1,2) \text{ and } C = (x_2, y_2) = (8,9)\\\\d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(1-8)^2 + (2-9)^2}\\\\d = \sqrt{(-7)^2 + (-7)^2}\\\\d = \sqrt{49 + 49}\\\\d = \sqrt{98}\\\\d = \sqrt{49*2}\\\\d = \sqrt{49}*\sqrt{2}\\\\d = 7\sqrt{2}\\\\[/tex]
AC is exactly [tex]7\sqrt{2}[/tex] units long.
Therefore, we've shown that AB+BC = AC is a true equation.
This proves that A,B,C are collinear.
For more information, check out the segment addition postulate.
What is this leat to gratest
Answers
Answer:
-4, -1, 3, 5, 6
Step-by-step explanation:
-4, -1, 3, 5, 6
Answer:
Least to greatest would be:
-4, -1, 3, 5, and then 6.
In basketball, Shaquille makes 40% of his free throw attempts. He goes to the free throw line to shoot one-and-one (if he makes the first shot, he gets to shoot one more). He scores 1 point per free throw. What is the expected value of the number of points he will score? 0. 064 0. 24 0. 56 0. 80
Answers
Answer:
0.56
Step-by-step explanation:
edu 2022
True or False: If a circle has a radius of 4 feet the diameter is 8 feet
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The figure below shows three quadrilaterals on a coordinate grid:
A coordinate grid is shown from positive 8 to negative 8 on the x axis and from positive 8 to negative 8 on the y axis. An image of a rectangle labeled E is shown on ordered pair negative 1, negative 1 and negative 3, negative 1 and negative 3, negative 2 and negative 1, negative 2. Another image of a rectangle labeled G is shown on ordered pair negative 2, negative 2 and negative 6, negative 2 and negative 6, negative 4 and negative 2, negative 4. Another image of a rectangle labeled F is shown on ordered pair negative 1, 1 and negative 1, 2, and negative 3, 2 and negative 3, 1.
Which of the following statements is true about the three quadrilaterals?
E and F are similar but not congruent.
E and G are similar but not congruent.
G and F are similar and also congruent.
E and G are similar and also congruent.
Answers
Answer:
(a) A and B are similar but not congruent
Step-by-step explanation:
All of the rectangles have sides in the ratio of 2:1, so are all similar. Only the rectangles that are the same size are congruent: A and C.
A and B are similar, but not congruent.
What is the value of the expression 4(a +d) when a = 2 and d = 5
Answers
Answer:
28
Step-by-step explanation:
2+5=7
7*4=28
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if you were exiled from Rana rule what would you do. Give your opinion please
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In the history of Nepal, Rana Regime is known as Dark Age as it lacked freedom, public sovereignty, and public literacy.
I would do the opposite of the things listed.
Please solve these congruent triangle problems
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#1
Just follow the naming
<R is equal to <W#2
Note the adjacent angles of JK
<J and <KPlease someone help me with this and pls explain its question 5
Answers
Answer:
8
Step-by-step explanation:
10 percent of 80 is 8
80 x 0.1 = 8
4 is 16 percent of 25
25/4 = 0.16
0.16 = 16%
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{10\% of 80}}{\left( \cfrac{10}{100} \right)80}\implies 8 \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{a\% of b}\\ \cline{1-1} \\ \left( \cfrac{a}{100} \right)\cdot b \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{4\% of 25}}{\left( \cfrac{4}{100} \right)25}\implies 1[/tex]
Pls help me with this pls and thanks
Answers
Answer:
y = 23
Step-by-step explanation:
5y - 4 + 3y = 180
8y = 180 + 4
8y = 184
y = 184/8
y = 23
A pyramid has a surface area of 24 m^2.
An artist creates replicas with scale factors of 1:12, 1:10, and 1:8
What is the surface area of each replica?
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Answer:
The replicas will have a surface area of 3 m2, 2.4 m2 and 2 m2.
Step-by-step explanation:
You would have to multiply:
24 x 1/8 = 3
24 x 1/10 = 2.4
24 x 1/12 = 2
The table shows the cost of buying x tickets to a school play.
Buying Tickets
\table[[Number of Tickets, x],[2,5],[10,13],[Cost, y],[$8.50,$21.25],[$42.50,$55.25]]
If the data are graphed on a coordinate grid, what is the y-intercept of the line that passes through these data points?
(A) 2.55
(B) 8.50
(c) 4.25
(D) 0
Answers
Answer: Answer is 4.25
Step-by-step explanation: Jus take you first number (2 over 8.50) and divide. You get 4.25. Now try to multiply or add for other numbers, and you find multiplying 4.25 by X will get you the answer of Y.
A line pass through 1,-5 and the slope of 9
Answers
Answer: y = 9x - 14
Step-by-step explanation:
The equation of a line is y = mx + b
We know the slope is 9 so so far the equation we have is y = 9x + b.
Since we know (1,-5) is a point on the line, we can plug in the x and y values into the equation and we get:
-5 = 1*9 + b
-5 = 9 + b
b = -14.
Therefore, the equation of the line is y = 9x - 14
Hello.
Here we have a point that the line passes through: (1, -5)
We also have the line's slope: 9
Now, we have enough information to write the line's equation in Point-Slope Form:
[tex]\mathrm{y-y1=m(x-x1)}[/tex]
Plug in the values and solve:
[tex]\mathrm{y-(-5)=9(x-1)}[/tex]
[tex]\mathrm{y+5+9(x-1)}[/tex]
[tex]\mathrm{y+5=9x-9}[/tex]
[tex]\mathrm{y=9x-9-5}[/tex]
[tex]\mathrm{y=9x-14}[/tex]
Therefore, the answer is
[tex]\mathrm{y=9x-14}[/tex]
I hope it helps.
Have a nice day.
[tex]\boxed{imperturbability}[/tex]
If 15x + 17y = 31 and 17x + 15y=21, find the value of (x-y). 10th
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15x + 17y = 31
17x + 15y = 21
- - -
───────
-2x + 2y = 10
→ -2 (x -y) = 10
→ x - y = -5
Value of (x - y) is -5
In this exercise we have to use the knowledge of equation to find the value, so:
[tex]x-y=-5[/tex]
What is the system solution?The solution of a linear system is every ordered and finite set that satisfies all the equations of the system at the same time. The number of elements in the solution set is always equal to the number of unknowns in the system.
So we have:
[tex]15x + 17y = 31\\17x + 15y = 21\\-2x + 2y = 10\\-2 (x -y) = 10\\x - y = -5[/tex]
See more about system at brainly.com/question/9061107
Which shows the transfer shown bellow; A B C or D
Answers
Answer:
A
Step-by-step explanation:
because it reflects
The median for the given set of six ordered data values is 27. 5. 9 12 23 _ 41 48 What is the missing value?
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Considering the median, the missing value of the data-set is of 31.
What is the median of a data-set?The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.
In this problem, since the set has even cardinality, the median is the mean of the middle elements, which are 23 and x. Since it is of 27, we have that:
(23 + x)/2 = 27
23 + x = 54
x = 31
Hence, the missing value of the data-set is of 31.
More can be learned about the median of a data-set at https://brainly.com/question/24732674
can anyone help me with this dont answer if you dont no what it is and no deleting answers
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5. find the missing angle measure
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Answer:
80 + 9x + 4 + 16x - 4 =180
25x = 180 - 80 + 4 - 4
25x = 100
x = 4
I can't see the question on the image...so not sure about final answer
The piece of this solid crate has an area of 6 m² the height of the crate is 4 m what is the volume of the crate
Answers
Answer:
no clue but thanks for the points!
Step-by-step explanation:
[tex][tex]\left \{ {{3x+4y=36} \atop {y=-\frac{1}{2} x+8}} \right.[/tex]
Answers
[tex] \qquad \qquad \huge \underline{\boxed{ \sf {Answer}}}[/tex]
Let's solve ~
The given equations are :
[tex] \qquad \dashrightarrow \bf \: 3x + 4y = 36 \sf \: \: \: \: \: \: \: \: \: \: (1)[/tex]
and
[tex] \qquad \dashrightarrow \sf \:y = - \frac{1}{2} x + 8[/tex]
[ multiply each sides by 2 ]
[tex] \qquad \dashrightarrow \sf \: 2y = - x + 16[/tex]
[tex] \qquad \dashrightarrow \sf \:x + 2y = 16[/tex]
[ multiply both sides by 2 ]
[tex] \qquad \dashrightarrow \bf \: 2x + 4y = 32 \: \: \: \: \: \: \: \: \: \: \: \sf(2)[/tex]
Now, subtract equation (2) from (1)
[tex] \qquad \dashrightarrow \sf \: 3x + 4y - (2x + 4y) = 36 - 32[/tex]
[tex] \qquad \dashrightarrow \sf \: 3x + \cancel{4y }- 2x - \cancel{4y }= 4[/tex]
[tex] \qquad \dashrightarrow \bf \: x = 4[/tex]
Now, as we got the value of x, let's solve for y :
[tex] \qquad \dashrightarrow \sf \: y = - \dfrac{1}{2} x+ 8[/tex]
[tex] \qquad \dashrightarrow \sf \: y = -\dfrac{1}{2} (4)+8[/tex]
[tex] \qquad \dashrightarrow \sf \: y = - 2 + 8[/tex]
[tex] \qquad \dashrightarrow \bf \: y = 6[/tex]
The measure of an angle is thirty-five times the measure of its complementary angle. What is the measure of each angle?
Answers
Answer: 2.5 and 87.5 degrees
Step-by-step explanation:
i will make you brainly
PLEASE HELP
please kindly awnser 1 and 2 questions
these are all wrong awnsers a. Identify the student’s mistake with the given question.
b. Explain why the answer is incorrect, then demonstrate and explain the correct way to
answer the question.
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please help! will mark brainliest
Answers
Answer:
i think its a or d
Step-by-step explanation:
Whats the area of this parralelogram? top is 8.2cm and the side is 6.5cm
Answers
Answer:
8.2 cm x 6.5 cm = an area of 53.3 cm
Answer:
53.3
Step-by-step explanation:
Multiply: 8.2cm*6.5cm
Answer: 53.3
Matt has 5 cookies Ali eats 4 of the cookies how old is Ali?
Answers
Answer:
4
Step-by-step explanation:
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Answer:
Ali is about 5-6 due to him having a larger stomach capacity.
Step-by-step explanation:
5-6 year olds would definitely eat about 4 cookies if somebody held 5, since they are open to sugary things, and they would eat possibly anything.
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What is the distance between each pair of numbers?
-a and 0
(I NEED MASSIVE HELP)
Answers
Answer:
[tex]\left|a\right|[/tex]
Step-by-step explanation:
Write the distance formula
[tex]\left|x_2-x_1\right|[/tex]
Find the distance
Find the distance between [tex]None(-1,a) and ():[/tex] [tex]\left|a\right|[/tex]
I hope this helps you
:)
Answer:
The distance between the pair of numbers is the absolute value of [tex]a[/tex], or [tex]|a|[/tex].
Step-by-step explanation:
Use the distance formula: [tex]d=|x_2-x_1|[/tex]. The [tex]x[/tex]s represent points one and two. Point one is [tex]-a[/tex], and point two is 0. Plug these into the equation, then solve:
[tex]d=|x_2-x_1|\\d=|(0)-(-a)|\\d=|a|[/tex]
Therefore, the distance between the pair of numbers is the absolute value of [tex]a[/tex], or [tex]|a|[/tex].
