Answers
Given:
The quadratic equation is:
[tex]3x^2-5x-2=0[/tex]
To find:
Point that is the solution of given equation.
Solution:
We have,
[tex]3x^2-5x-2=0[/tex]
The quadratic function of the above equation is:
[tex]y=3x^2-5x-2[/tex]
Putting [tex]x=1[/tex], we get
[tex]y=3(1)^2-5(1)-2[/tex]
[tex]y=3-5-2[/tex]
[tex]y=-4[/tex]
The function passes through the point (1,-4). It means (1,-4) is the solution of given equation but (1,5) is not a solution of given equation.
Therefore, the correct option is A.
Related Questions
im confused again please help
Answers
I think the answer is A.CMIIW
which of the at eight o'clock, which of is the angle between the hour and the minute hands
Answers
Answer:
At 8 o'clock angle between the two hands is 120 degree.
Step-by-step explanation:
For even hours, it’s easy. There are 12 numbers on the 360 degree clock face so each number is 30 degrees. Now, if you are after 6 then “the angle” is the other way so for 8:00, 12–8 = 4*30 = 120 degrees.
The problem comes in when you are not at an even hour. At, say, 8:20, the minute hand has moved 120 degrees and the hour hand has moved 1/3 of 30 or 10 degrees so, the angle is now 8*30 - 4*30 + 10 = 240 - 120 +10 = 130 degrees.
At 8:40 the minute hand has moved 8*30 = 240 degrees and the hour hand has moved 2/3 of 30 or 20 degrees so the angle is now 8*30 - 8*30 + 20 = 20 degrees
OH GOD HELP ME PLS PLS
Answers
Answer: 56
Step-by-step explanation: :)
Find the measure of the indicated angle to the nearest degree (Image Attached)
Answers
Answer:
Y = 31.9° (rounded to 3 significant figures)
дам 50 балов Контрольная работа по'творчеству
ДДефо РКрузо
1 вариант
1.Роман, который принёс Д.Дефо мировую
известность
а) Дети капитана Гранта", б) "Робинзон Крузо”,
в) Остров сокровищ
2. Вещи, найденные на корабле, Робинзон
переправил:
а) на бревне; б) на плоту; в) на лодке
3.Роль календаря у Робинзона Крузо выполняли.
а)каменная стена; б) деревянный столб;
%) записной блокнот.
4.Героя рассказа Дж.Лондона "Любовь к жизни
зовут:
а)Билл; б) Джон; в) нет имени.
5.Почему герой рассказа "Любовь к жизни
постоянно пересчитывал спички:
ta) чтобы рассчитать их количество; б) чтобы не
разучиться считать; в) чтобы скоротать время.
Б.Что находит главный герой рассказа "Любовь
к жизни" возле своего погибшего товарища,
а) патроны; б) одежду; в) золото
7. Откуда Робинзон Крузо взял посуду?
8.Как Робинзон Крузо называл свой остров?
9 На кого охотился Робинзон Крузо и не мог
поймать?
10. Дайте характеристику главного героя
рассказа "Любовь к жизни" Чему он вас научил?
Answers
hello please help i’ll give brainliest
Answers
Answer:
a is the answer I guess.
(-2)÷50
4x 10^6 is how many times as large as 1 x 10^4 ?
Answers
Answer:
3990000
Step-by-step explanation:
Which angle pair relationship shows that two lines are parallel?
OTwo vertical angles are congruent.
O Two adjacent angles are supplementary.
OTwo alternate interior angles are supplementary.
OTwo corresponding angles are congruent.
Answers
Answer: Two corresponding angles are congruent.
Step-by-step explanation:
Generate a sampling distribution of sample means using a sample of size from the YearlySalary values in the dataset NFLContracts2015, which gives the total and yearly money values from the contracts of all NFL players in 2015. Data is given in millions of dollars, and all answers should be given in millions of dollars
Answers
Answer:
Hello your question is not well written attached below is the complete question
answer :
a) smallest value = $0.405 million
largest value = $22 million
b) smallest value = $0.505 million
largest value = $9.332 million
Step-by-step explanation:
A) what are the smallest and largest yearly salary values in the population
smallest value = $0.405 million
largest value = $22 million
b) What are the smallest and largest sample mean in the sampling distribution
Smallest value = $0.505 million
Largest value = $9.332 million
note : values where gotten using statkey on the dataset NFLcontracts2015 as stated in the attached document ( question )
The circumference of a pizza is 75 inches. What is the approximate radius of the pizza?
Answers
It costs $255 for 30 students to see the musical. How much
will it cost for 85 students to see the play?
a. $672.25
b. $685.75
C. $712.75
d. $722.50
Answers
A rectangular prism has a length of 16 feet, a height of 15 feet, and a width of 18 feet.
What is its volume, in cubic feet?
Answers
Answer:
4320 ft(to the power of 3)
Step-by-step explanation:
Answer:
16 x 15 x 18 = 4,320 ft3
When given 3 lengths when finding the volume, multiply them all and dont forget to add the unit 3!
The scatter plot shows the number of tickets sold and the price of the tickets.
Using the trend in the scatter plot, about how much will people pay for a ticket If 50 tickets are sold?
A.$50
B.$41
C.$25
D.$5
Answers
Answer:
5$
Step-by-step explanation:
Find the surface area of the regular pyramid
Answers
Answer:
64cm² will be your answer
Step-by-step explanation:
SA=4²+4(1/2)(4)(6)
SA=64cm²
hope it helps...
have a great day!!!
PLEASE HELP!!
Which table isn’t a function?
Answers
Answer:
Its the bottom right one
29.4 is 42% of what number? also pls explain how to do this thank you :) I will mark brainliest
A. 0.7
B. 1,234.8
C. 142
D. 70
Answers
29/x = 42/100 (of/what = %/100)
A bathtub can hold 66 galons of water. The faucet adds 5.5 gallons of water to the bathtub evvery minute. Find out how many minutes it takes to fill the empty bathtub. WRITE EQUATION YOU USED!
Answers
Answer: 12 minutes
Step-by-step explanation:
66/5.5
12 minutes
Answer:
12 min
Step-by-step explanation:
5.5 t=66
t=66/5.5=660/55=12 minutes
Can some help me please
Answers
Answer:
12
Step-by-step explanation:
2:3 = A:18
A = 12
You start at (8, 3). You move down 1 unit. Where do you end?
Answers
Answer:
(8, 2)Step-by-step explanation:
Initial point is: (x, y) = (8, 3)
When you move up or down, you change the y-coordinateWhen you move left or right you change the x-coordinateMove down 1 unit:
(x, y) → (x, y - 1)The new point is:
(8, 2)MN appears to be tangent to OC, but don't trust the picture!
Use calculations to see if MN is tangent to OC.
Answers
Answer:
8
Step-by-step explanation:
Answer:
I'm not sure I'm sorry good luck
pls help. will mark brainliest.
what is the 6th term of a GP whose first term is 6 and common ratio is 2
Answers
Answer:
192
Step-by-step explanation:
As given Ratio=2, a=6
tn=ar^n-1
t6=6.(2)^5
t6=6.32
t6=192
help, please......................................................
Answers
Answer:
36
4×4=16
8×2=16
4×2=8/2= 4
16+16+4=36
Answer:
I am not sure but I think the area is 28.
I know two things for sure: the area is less than 32 and more than 24.
Step-by-step explanation:
Have a nice day!
can I maybe have brainliest? Thanks!
please help me............
Answers
Answer: 167* and 562*
Step-by-step explanation: 62x72x89x57x81x93x75x8=167//562
sj2dg3h3fvehdvddddddddddddd-=
Answers
Answer:
[tex]\overline {AD}[/tex] = 5
Step-by-step explanation:
From the given diagram we are required to find the length of [tex]\overline {AD}[/tex]
The given parameters are;
ΔABC and ΔCDA are congruent
The length of [tex]\overline {BC}[/tex] = 5
The length of [tex]\overline {AC}[/tex] = 7
The length of [tex]\overline {CD}[/tex] = 4
From ΔABC ≅ ΔCDA, we have;
[tex]\overline {AC}[/tex] = [tex]\overline {AC}[/tex] By reflexive property
∴ [tex]\overline {BC}[/tex] = 5 is either equal to [tex]\overline {AD}[/tex] or [tex]\overline {CD}[/tex]
However, [tex]\overline {CD}[/tex] = 4, therefore, [tex]\overline {BC}[/tex] ≠ [tex]\overline {CD}[/tex]
We can then have;
[tex]\overline {BC}[/tex] = [tex]\overline {AD}[/tex] = 5.
Find the percent of change. Round to the nearest whole percent. The building was
36 feet tall. After the
addition, it was 95
feet tall.
Answers
Answer:
56.05%
Step-by-step explanation:
your welcome
Answer:
164%
Step-by-step explanation:
The original value is 36 feet
The new value is 95 feet
The increase is (95 - 36) 59 feet
The percent increase is (The increase divided by the original value multiplied by 100) (59 ÷ 36) × 100 = 163.9
∴ There was a 164 % increase
Tyrone receives a discount of $8.40 on a hat that normally costs $28.00. What percent discount did he receive on the hat? Show your work. If work is not shown, you will not receive full credit. HINT: You may use a formula provided at the top of the quiz.
Answers
Answer:
Step-by-step explanation:
23
Tyron receives a 30% discount on a hat. Calculations of discount percent are provided below.
Find the discount percentage
The discount Percentage is calculated by = [tex]( Discount / Price )[/tex] × [tex]100[/tex]
What information do we have,
Usual cost = $28
Discount = $ 8.40
So,
Discount percentage [tex]= ( 8.40 / 28 )[/tex] × 100
= 30%
Thus, 30% is the correct answer.
To learn more about Discount, refer https://brainly.com/question/24883957?referrer=searchResults
Solve for x please help!!!
Answers
2x=26
x=13 degrees
The cosine of the complimentary angle to 38°
a.
0.68
c.
-0.22
b.
-0.16
d.
0.62
Answers
Answer:
D 0.62
Step-by-step explanation:
90-38 = 52
cos (52) = .62
Determine the number of possible triangles.
7. A=108, a=9, b = 7
Answers
Complete question is;
Find all solutions for the given triangle, if possible. If no solution exists, write no solution. Round side lengths to the nearest tenth and angle measures to the nearest degree.
a = 9, b = 7, A = 108°
Answer:
c = 3.8
C = 24°
B = 48°
Step-by-step explanation:
From law of sines, we can find B.
a/sin A = b/sin B
sin B = (bsinA)/a
sin B = (7 × sin 108)/9
sin B = 0.7397
B = sin^(-1) 0.7397
B ≈ 48°
Sum of angles in a triangle = 180°
Thus;
C = 180 - (A + B)
C = 180 - (108 + 48)
C = 24°
Again, using law of sines, we have;
a/sin A = c/sin C
c = (a•sin C)/(sin A)
c = (9 × sin 24)/(sin 108)
c = 3.849
To the nearest tenth gives;
c = 3.8
Find the area of the sector
Answers
Answer:
The easiest way to do this is to calculate the Area of the whole circle and then subtract the 1/4 of the missing piece.
So:
A=pi×81 and then pi×81/4 and then pi×81-[pi×81/4]Answer:
[tex]\boxed {\boxed {\sf a \approx 190.9 \ yd^2}}[/tex]
Step-by-step explanation:
There are 2 formulas for the area of a sector, but since we are given the central angle in degrees (not radians), we will use this formula:
[tex]a= \frac {\theta}{360} \times \pi r^2[/tex]
Where θ is the central angle and r is the radius.
For this circle, the radius is 9 yards and the central angle is 270 degrees. We can substitute these values into the formula.
[tex]a= \frac {270}{360} \times \pi \times (9 \ yd )^2[/tex]
Solve the fraction.
[tex]a=0.75 \times \pi \times (9 \ yd)^2[/tex]
Solve the exponent.
(9 yd)²= 9 yd* 9 yd=81 yd²[tex]a= 0.75 \times \pi \times 81 \ yd^2[/tex]
Multiply all three numbers together.
[tex]a= 190.851753706 \ yd^2[/tex]
The question asks us to round to the nearest tenth.
190.851753706The 5 in the hundredth place tells us to round the 8 up to a 9.
[tex]a \approx 190.9 \ yd^2[/tex]
The area of the sector is approximately 190.9 square yards.