It’s discriminant is zero, so it has one real solution statement is true for x²-2x +1=0.
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax²+bx+c=0. with a ≠ 0 .
The given quadratic equation is x²+1=2x
This can also be written as x²-2x +1=0
a=1, b=-2 and c=1
The expression b² − 4ac is called the discriminant, and can be used to determine whether the solutions are real, repeated, or complex.
(-2)² − 4(1)(1)=4-4
b² − 4ac= 0
A discriminant of zero indicates that the quadratic has a repeated real number solution.
It’s discriminant is zero, so it has one real solution.
Hence, It’s discriminant is zero, so it has one real solution statement is true for x²-2x +1=0.
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The dollar value v(t) of a certain car model that is t years old is given by the following exponential function.
v (c) = 20,000(0.88)
Find the initial value of the car and the value after 11 years.
Round your answers to the nearest dollar as necessary.
Initial value:
Value after 11 years:
9514 1404 393
Answer:
initial value: $20,000after 11 years: $4,902Step-by-step explanation:
Assuming your equation is ...
v(t) = 20,000(0.88^t)
The value for t=0 is 20,000.
The value for t=11 is 20,000(0.88^11) ≈ 4,902.
The initial value is $20,000; the value after 11 years is $4,902.
pls help fast
Alyssa wants to buy a computer for $600. If she
pays $75 now and $25 each month, she can pay
for it in 21 months. If she were to pay $75 now
and $35 each month, how would the number of
payments change?
A She would make 15 fewer monthly payments.
B She would make 3 fewer monthly payments.
C She would make 5 fewer monthly payments.
D She would make 6 fewer monthly payments.
Answer:
D
she would make 6 fewer monthly payments
Step-by-step explanation:
:)
Which of the following is the solution (x,y) of the system of equations x-2y = 2 and -x+2y = 2
Answer:
Step-by-step explanation:
x-2y = 2
-x+2y = 2
set 1st eq. equal to 2nd equation since they both equal 2
x -2y = -x + 2y
2x = 4y
x = 2y
1/2x = y
(x, 1/2x ) :P
Each row contains the degree measures of two supplementary angles. Complete the table.
the measure of an angle measure of its supplement
80°
°
25°
°
119°
°
x
°
(From Unit 7, Lesson 2)
Answer:
Step-by-step explanation:the answer will be 100
Can someone solve for me please? Simply each expression. I myst show work
Answer:
37/20y
you find LCM first
A standardized test is designed so that scores have a mean of 50 and a standard deviation of 4.
What percent of scores are between 46 and 54?
Answer:
68.3%
Step-by-step explanation:
Using the relation :
Zscore = (x - Mean) / standard deviation
For, x between 46 and 54
Zscore = ((54 - 50) / 4) - ((46 - 50) / 4)
P(Z < 4/4) - P(Z < -4/4)
P(Z < 1) - P(Z <-1)
0.84134 - 0.15866
= 0.68268
= 0.68268 * 100%
= 68.3%
Answer:
A standardized test is designed so that scores have a mean of 50 and a standard deviation of 4. What percent of scores are between 42 and 58?
Step-by-step explanation:
about 95.4%
Solve the equation 2x + 9 = -15
Please and thank you!!
what is the probability of a chance event is 0.05, it to happen when compared to a chance event with a probability of 0
Answer:
I can't understand
Step-by-step explanation:
I will just try to rewrite your question so someone lese can answer it.
"What is the probability of a chance event, with a probability of 0.05, to happen when compared to a chance event with a probability of 0."
or just what is the probability(how high or low are the chances) of an event with a very low chance of happening when compared to an event that can never happen.
NEED HELP ASAP!!!!!!!!!!!!!!
Answer:
its B
Step-by-step explanation:
just run all of them through the equation.
Answer:
A
Step-by-step explanation:
I don’t understand how to solve this question
Answer:
142
Step-by-step explanation:
if m angle A = 109, then arc DCB = 2(109)= 218
360 - 218 = 142
Explicit formula for an, the nth term of the sequence 48,12,3,...
Answer:
a(n) = 48*(1/4)^(n - 1)
Step-by-step explanation:
Here the first term, a(1), is 48 and the common ratio is r = 1/4.
Thus, the specific formula for the information given is
a(n) = 48*(1/4)^(n - 1)
Write both an explicit equation and a recursive equation for the sequence 4, 2, 1.0.5.0.25
help pleasee
Answer:
Step-by-step explanation:
This is a geometric sequence with first term a1 = 2 and common ratio r = 0.5.
an = a1 r^^n-1)
an = 2(0.5)^(n-1).
Recursive equation:
an = 0.5a(n-1) where n > 2
please help!!!No links
Answer:
is 53
heart if it helped brain if im cooll
What is the length of X to Y
answers r
Answer:
8.6
Step-by-step explanation:
Solve for x using the diagram of circle C.
B В.
(3x+49)
(5x-7)
Answer:
googl it
Step-by-step explanation:
its on googl and it has the anwser
Help this is due in 2 minutes
Answer:
a) 3000(1 + 0.02)^16
Step-by-step explanation:
A school principal wants to find out what the students think about the teaching
quality in the school. Which of these samples is unbiased?
Use r = 2
When r + 4(2 + r) – 12 =
Answer:
6
Step-by-step explanation:
2+r=4
4x4=16
16+r=18
18-12=6
Answer:
6
Step-by-step explanation:
r + 4(2 + r) - 12 =
2 + 4(2 + 2) - 12 =
2 + 4(4) - 12 =
2 + 16 - 12 =
18 - 12 =
= 6
Se tienen dos libros: uno de 240 página y otro de 160 páginas. Si los 2 libros están formados por cuadernillos con el mismo número de páginas (entre 16 y 28), ¿cuántos cuadernillos tienen en total los dos libros?
Answer:
Book of 240 pages has 12 booklets in total
Book of 160 pages has 8 booklets in total.
Total booklets both the books have in total = 20
Step-by-step explanation:
Given - There are two books: one of 240 pages and the other of 160 pages. If the 2 books are made up of booklets with the same number of pages (between 16 and 28),
To find - How many booklets do the two books have in total?
Proof -
Given that, Number of pages of a booklet is between 16 and 28.
So, The number that lies between 16 and 28 will have to divide the number of pages of both the books.
(Because given that both the books are made up of booklet with the same number of pages)
By inspection, we get
The number of pages of a booklet = 20
because
240/20 = 12 and 160/20 = 8
∴ we get
1 booklet = 20 pages
i.e.
20 pages = 1 booklet
⇒1 page = [tex]\frac{1}{20}booklet[/tex]
⇒240 pages = [tex]\frac{240}{20}booklet[/tex] = 12 booklet
So, we get
The book of 240 pages has 12 booklets in it.
Now,
1 page = [tex]\frac{1}{20}booklet[/tex]
⇒160 pages = [tex]\frac{160}{20}booklet[/tex] = 8 booklet
So, we get
The book of 160 pages has 8 booklets in it.
∴ we get
Book of 240 pages has 12 booklets in total
Book of 160 pages has 8 booklets in total.
So, Total booklets both the books have = 12 + 8 = 20
find the value of x an y
Answer:
x=46
Step-by-step explanation:
● The short and long hands of a clock are 4 cm and 6 cm long respectively. Find the sum of distance travelled by their tips in 2 days.
Class - 10th
No spam ❌
Juniors stay away ~
Step by step explanation please
Step-by-step explanation:
short hand radius = 4
distance travellled in 1 day revolution = 2πr= 2 x 22/7 x 4= 25.1cm (approx)
distance travellled in 2 day revolution= 25.1+ 25.1 = 50.2
long hand radius= 6
each hour 1 revolution by long hand so in 24 hr 24 revolutions and 48 he 48 revolution
distance travelled in 1 hr = 2πr= 2 x 22/7 x 6= 37.7
distance in 48hr = 37.7 x 48= 1809.6 (approx)
so sum of both= 1809.6 + 50.2 = 1859.8
Answer:
1910.12 cm
Step-by-step explanation:
2 days = 48 hrs = 2880 mins
One cycle of the short hand (4 cm) would be 12 hrs.
48/12 = 4 cycles
Circumference of a circle = [tex]2\pi r[/tex]
r = 4 cm
2*pi*4 ≈ 25.13 cm (I only rounded to the hundredth, adjust as u need)
25.13 * 4 = 100.52 cm
One cycle of the long hand (6 cm) would be 60 mins (which is 1hr and two days would be 48hrs or 48 cycles. But let's keep this consistent).
2880/60 = 48 cycles
Circumference of a circle = [tex]2\pi r[/tex]
r = 6 cm
2*pi*6 ≈ 37.70 cm (I only rounded to the hundredth, adjust as u need)
37.70 * 48 = 1809.6
100.52 + 1809.6 = 1910.12 cm
^^ I'm not a junior I'm a senior so lol
GIVING BRAINLIEST!!!!!!!
Two numerical patterns are shown below:
Pattern A: 6, 12, 18, 24, 30
Pattern B: 12, 24, 36, 48, 60
Select the statement that describes the numerical patterns.
The rule for Pattern B is "multiply by 2."
The rule for Pattern A is "multiply by 2."
Each term in Pattern B is one half the corresponding term in Pattern A.
Each term in Pattern A is one half the corresponding term in Pattern B.
Answer:
ITS A
i took the quiz :)
Step-by-step explanation:
The two true statements are:
The rule for Pattern B is "multiply by 2."
Each term in Pattern A is one-half the corresponding term in Pattern B.
Wich statements are the correct ones?
Here we have two patterns:
Pattern A: 6, 12, 18, 24, 30Pattern B: 12, 24, 36, 48, 60First, let's analyze the patterns. For pattern A we can see that we just add 6 to each consecutive term, so this is an arithmetic sequence.
6 + 6 = 12
12 + 6 = 18
18 + 6 = 24
And so on.
For pattern B we multiply each term by 2 to get the next one, so this is a geometric sequence.
2*12 = 24
2*24 = 48
and so on.
Then we already can see that. "The rule for Pattern B is "multiply by 2." Is true
And:
The rule for Pattern A is "multiply by 2." is false.
Finally, let's compare the terms. The first term of B is 12, and the first ter of A is 6, so we can see that the first term of B is two times the first one of A. The second term of B is 24, while the second of A is 12, so again, we can see that the second term of B is two times the second of A.
So we can see a pattern, meaning that the statement: "Each term in Pattern A is one-half the corresponding term in Pattern B."
Is true.If you want to learn more about sequences, you can read:
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Distribute and combine like terms: −5(−7 + 7n)
Transformation Geometry freaking help, it’s due tmrr
Answer:
i can help
Step-by-step explanation:
|x+5|=x
Solve these equations
Answer:
do yourself a favor and download photomath. It'll save your life
Step-by-step explanation:
According to the line of best fit, if a batter practices 0 hours, about how many strikeouts did they have?
Look at screen shot below
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Answer:
1st option is the correct answer
3^4√16n^8
Simplify expression
Answer:
48n^8
brainliest pleaseeeeee
Answer:
243√2n^4
Step-by-step explanation:
I did the math
The ordinate of every point on the x-axis is zero. True or false?
Answer:
true
Step-by-step explanation:
the first number is mostly known as 1 but actually is 0 because it is a separation between the negative and positive numbers
What percent of 315 is 63?
Answer:
20%
Step-by-step explanation:
Write the problem as a mathematical expression.
63/315
Convert to decimal
0.2
Times by 100
0.2 times 100
20%