Answer:
2nd option
Step-by-step explanation:
trinomial is 2x² + 10x -4 = 0
a = 2
b = 10
c = -4
(-b±√b²-4ac) / 2a
= [-10±√100-4(2)(-4)] / 2
= (-10±2[tex]\sqrt{33}[/tex]) / 4
= (-5+[tex]\sqrt{33}[/tex])/2, = (-5-[tex]\sqrt{33}[/tex])/2 (simplified)
Nish is playing a video game where he pushes a button to stop a spinning wheel. Each time he presses the button, the theoretical probability of scoring 0 points is 1/5, the theoretical probability of scoring 10 points is 3/5, and the theoretical probability of scoring 20 points is 1/5. How many times would you expect Anish to score 10 points if he presses the button 10 times?
Answer:
6 times
Step-by-step explanation:
The theoretical probability of scoring 10 points upon pressing a button = 3 / 5
The expected number of times 10 points is scored if button is pressed 10 times :
This will be ;
(Number of times button is pressed * theoretical probability of scoring 10 when button is pressed)
(10 * 3 / 5)
= 30 / 5
= 6 times
help me please
will get rewared brainly if correct answer
Well, split it into 3 shapes
21 x 10 = 210
3 x 6 = 18
2 x 6 = 12
210 + 18 + 12 = 240 square cm
imahe for more context
plzzz give me brainliest
Use this area model to find One-fourth divided by 3.
One-fourth divided by 3 =
.
Answer:
1/12
Step-by-step explanation:
This answer is right
Please help me with this. I’ve been struggling.
so go to 1.75 on the bottom of your graph (the x value)
then go directly up and stop at 2.5 (y)
then thats your point
Katy buys 4 DVDS every 2 weeks how many DVDS will she buy in 14 weeks
Answer:
28 dvds in 14 weeks
Step-by-step explanation:
4 dvds in two weeks
2 dvds in a week
14 weeks equal 28 dvds
how to change 5 to base 1
Answer:I'm going to illustrate by converting 4325 to base 8. I an going to do it in two steps. First convert 4325 to base 10 and then convert this base 10 number to base 8.
Converting 4325 to base 10 just requires remembering what base 5 means.
4325 = 4 × 52 + 3 × 5 + 2 = 4 × 25 + 15 + 2 = 117.
To put 117 into base 8 imagine you have 117 CDs. Put them is stacks of 8 disks each. You get 14 stacks of 8 disks with 5 remaining (that is 117 ÷ 8 = 14 with a remainder of 5). Now take the 14 stacks and put them in groups of 8. You get 1 group of 8 stacks and 6 stacks remaining ((that is 14 ÷ 8 = 1 with a remainder of 6). Thus you have
1 group of 8 stacks (1 × 8 × 8 disks)
6 stacks (6 × 8 disks) and
5 individual disks.
Hence 117 = 1 × 82 + 6 × 81 + 5 = 1658
Here, more compactly is what I did
117 ÷ 8 = 14, remainder of 5
14 ÷ 8 = 1, remainder 6
1 ÷ 8 = 0, remainder 1
Read the remainders from bottom to top, 1658
Step-by-step explanation:
HELP ME WITH BOTH QUESTIONS IM STUCK QUICK
Answer:
4. True 5. False
Step-by-step explanation:
> is greater than. When you read the equation you would read x is greater than y. (The alligator always eats the larger number) < is less then.
You do not combine like-terms on opposite sides of the equality.
A right triangle has side lengths a,b, and c as shown below. Use these lengths to find sin x, tan x, and cos x.
Step-by-step explanation:
sinx = a/b
tanx= a/c
cosx= c/b
Question 8 (1 point)
(x^22)(x^7)^3
The expression
is equivalent to x^pWhat is the value of P?
Answer:
p = 43
Step-by-step explanation:
Here, we have it that;
(x^22) * (x^7)^3 = x^p
From law of indices
(y^a)^b = y^ab
and also;
y^a * y^b = y^(a + b)
applying these, we have it that;
(x^7)^3 = x^(7* 3) = x^21
Thus, we have it that;
x^22 * x^21 = x^(22 + 21) = x^43
So we have it that the value of p is 43
Knowing that sin 30º =
ž, what is a?
300
a
60°
9
o
A. 4.5
B. 15.59
Ο Ο
C. 18
D. 9
Answer:
18, C
Step-by-step explanation:
Sin(α)=opp/hyp
we know that
.5=9/a
a=18
Write an equation based off this trigonometric graph.
Answer(s):
[tex]\displaystyle y = 4cos\:(2x - \frac{\pi}{2}) - 1 \\ y = 4sin\:2x - 1[/tex]
Explanation:
[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{\frac{\pi}{4}} \hookrightarrow \frac{\frac{\pi}{2}}{2} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{\pi} \hookrightarrow \frac{2}{2}\pi \\ Amplitude \hookrightarrow 4[/tex]
OR
[tex]\displaystyle y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow -1 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{\pi} \hookrightarrow \frac{2}{2}\pi \\ Amplitude \hookrightarrow 4[/tex]
You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the sine graph, if you plan on writing your equation as a function of cosine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of [tex]\displaystyle y = 4cos\:2x - 1,[/tex] in which you need to replase "sine" with "cosine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the sine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the cosine graph [photograph on the right] is shifted [tex]\displaystyle \frac{\pi}{4}\:unit[/tex] to the left, which means that in order to match the sine graph [photograph on the left], we need to shift the graph FORWARD [tex]\displaystyle \frac{\pi}{4}\:unit,[/tex] which means the C-term will be positive, and perfourming your calculations, you will arrive at [tex]\displaystyle \boxed{\frac{\pi}{4}} = \frac{\frac{\pi}{2}}{2}.[/tex] So, the cosine graph of the sine graph, accourding to the horisontal shift, is [tex]\displaystyle y = 2cos\:(2x - \frac{\pi}{2}) - 1.[/tex] Now, with all that being said, in this case, sinse you ONLY have a graph to wourk with, you MUST figure the period out by using wavelengths. So, looking at where the graph hits [tex]\displaystyle [-\frac{\pi}{4}, -5],[/tex] from there to [tex]\displaystyle [\frac{3}{4}\pi, -5],[/tex] they are obviously [tex]\displaystyle \pi\:units[/tex] apart, telling you that the period of the graph is [tex]\displaystyle \pi.[/tex] Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at [tex]\displaystyle y = -1,[/tex] in which each crest is extended four units beyond the midline, hence, your amplitude. So, no matter how far the graph shifts vertically, the midline will ALWAYS follow.
I am delighted to assist you at any time.
two rectangles are similar. the first rectangle has a length of 15 cm and a width of 10 cm. the width of the second rectangle is 25 cm. what is the length
How to write an equation in point -slope form for each line
F/R/E/E P/O/I/N/T/S
Answer:
tysm!!
Step-by-step explanation:
[tex]have[/tex] [tex]a[/tex] [tex]great[/tex] [tex]day[/tex] [tex]:)[/tex]
AAAAAAA THANK YOU :D
so um i lost on here help plz i have until 11:59
Change 1.5% to a decimal. Be careful and remember to move the decimal 2 places to the left. [hint: a decimal might have a 0 in it]
Solve for x
A 12.8
B 18.3
C 5.7
D 21.4
May 03, 8:12:38 PM
A group of friends wants to go to the amusement park. They have no more than $725
to spend on parking and admission. Parking is $19, and tickets cost $20.25 per
person, including tax. Which inequality can be used to determine p, the maximum
number of people who can go to the amusement park?
O 725 < 20.25p + 19
O 725 < 20.25 + 19p
Submit Answer
725 > 20.25 + 19p
O 725 > 20.25p + 19
Type here to search
Answer:
725 > 20.25p +19
Step-by-step explanation:
Find the exact perimeter of hexagon ABCDEFABCDEFA, B, C, D, E, F plotted below. Choose 1 answer: Choose 1 answer: (Choice A) A 343434 (Choice B, Checked) B 52+\sqrt{29}52+ 29 52, plus, square root of, 29, end square root (Choice C) C 23+3\sqrt{29}23+3 29 23, plus, 3, square root of, 29, end square root (Choice D) D 23+\sqrt{29}+\sqrt{58}23+ 29 + 58 23, plus, square root of, 29, end square root, plus, square root of, 58, end square root
Answer:
D
Step-by-step explanation:
i did it on khan
Answer:
D
Step-by-step explanation:
Did anybody laugh when the ice skater fell down?
Answer:
okkkkkkk ty for he points
Step-by-step explanation:
Answer:
Ty
Step-by-step explanation:
If f(x) = (x-6)(x +12), determine the x-intercepts of y = f(-3x).
Show your work.
Explanation is[tex]^{}[/tex] in a file
bit.[tex]^{}[/tex]ly/3gVQKw3
Answer:
x = -2, x = 4
Step-by-step explanation:
(-3x-6)(-3x+12)
foil method:
9x² - 18x - 72
9(x² - 2x - 8) = 0
(x+2)(x-4) = 0
x = -2 and x = 4
24.8x45.67 plz help will mark Brainliest
Answer: 1132.616
lol-
extra points if right!
Answer:
3/7 bags of flour
Step-by-step explanation:
Things we know:
Carmen uses 2/7 bag of flour to make 1/2 of a batch
To make 1 batch she will use :
2/7 flour/1/2 batch = x flour/1batch
2/7 = 1/2x
1/7 = x
We need 1/7 flour to make 1 batch of cookie
If 1 batch uses 1/7 of the flour then 3 batchs will need:
1/7 flour/1batch = x flour/3 batch
1/7 * 3 = x
3/7 = x
Therefore we need 3/7 flour to make 3 batches of cookies.
need help ASAP pls! Fairly simple question
Answer:
387,420,489
Step-by-step explanation:
Use the product rule that says (x^a)(x^b)=x^a+b
[tex]\frac{3^{12}}{(3^{2})^{-3}}[/tex]
Then the negative power rule:
[tex]\frac{3^{12}}{3^{-6}}[/tex]
Then simplify:
[tex]\frac{531441}{\frac{1}{729} }[/tex]
387,420,489
haha simple work, but the answer is not that simple :)
Use the completing the square method to solve the equation. After dividing both sides by 2 first, what would you then add to both sides of the equation to complete the square? 2x -20x_=9_
Answer:
link w/.w/e.w/.e././2.1/.31
Step-by-step explanation:
About one-fifth of the population of a town has blue eyes. About two-sevenths of the population has brown eyes. What is the probability that a person chosen at random from this town has blue eyes or brown eyes?
3/13
23/35
1/35
17/35
Answer:
Option C, 1/35
Step-by-step explanation:
Given
Proportion of town that has blue eyes = 1/5 = 0.2
Proportion of town that has brown eyes = 1/7
The probability of choosing either a blue eye or a brown eye person is
Probability of blue eye individual * Probability of brown eye individual
= 1/5 * 1/7 = 1/35
Hence, option C is correct
A jar contains 900 beans. Of all the beans, 7/10 are white beans and the rest are azuki beans. What is the ratio of white beans to azuki beans?
Answer:
Given that in the jar, navy beans and white beans in a ratio of 1:9. Let the amount of navy beans be x.
Then, the amount of white beans in the jar is 9x.
Given that amount of navy beans is x=90
Total amount of beans in the jar is x+9x=10x=10+90=900
So the ratio is 1:9
Step-by-step explanation:
5)
Games per World Series
6
Games
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Series
A) Median = 6 and Mean = 5.6
B) Median = 6 and Mean = 5.93
C) Median = 5 and Mean = 5.47
D) Median = 7 and Mean = 5.93
C
D
Answer:
the correct answer is option D. median is 7 and mean is 5.93
I NEED HELP ILL GIVE TONS OF POUNTS find the mean of the data in the pictograph below
Answer:
4 home runs
Step-by-step explanation:
(Don't answer if unsure) If the triangle rotated 360 degrees to the right, where would the plotted points be? (Coordinates are (-8,2) (-8,8) (-4,2)
Answer:
Step-by-step explanation:
A correct answer can only be obtained from a complete question.
A rotation is not always about the origin, but in the absence of information, this will be assumed.
Rotating to the right is assumed to mean rotated from the second towards the first quadrant about the origin.
Rotating any shape about the origin by 360° will always return to the original (starting) position, so the final coordinates will be (-8,2) (-8,8) (-4,2).
PLEASE HELP WITH ALL QUESTIONS WITH STEPS DUE BY 1015
Step-by-step explanation:
1)
Put the values
2^5 -7³
32-343
-311
2)
Multiply 13 and 2 and the values power will be added as it is multiplication
26 (p^1+5) (h^3+1)
26 p^6 h^4
3)
Multiply -6 and -3and the values power will be added as it is multiplication.
18 (x^1+1) (y^2+3) (z^3+4)
18 x^2 y^5 z^7
4)
Divide -40 and 2 and the values power will be subtracted as it is division
-20 ( b^7-7) (c^5-1)
-20 b^0 c^4