Answers
Step-by-step explanation:
[tex] \beta [/tex]
is a root of the quadratic
[tex]4 {x}^{2} - 10x + 5[/tex]
This quadratic isn't factorable so use the quadratic formula
[tex] - b + - \sqrt{ \frac{b {}^{2} - 4ac }{2a} } [/tex]
The plus and minus sign after b means we going to have two roots.
The roots are
[tex] \frac{5 + \sqrt{5} }{4} [/tex]
and
[tex] \frac{5 - \sqrt{5} }{4} [/tex]
We subsitue those values for Beta.
27a.
[tex] \frac{5}{2} [/tex]
27b.
25
Related Questions
Find the 75th term of the arithmetic sequence -17,-13,-9
Answers
Plz help me and actully tell me the answer
Answers
Answer:
Step-by-step explanation:
Take 3.1 x 2.15 and 9.8 x 1.55 for your answer. Then round to the nearest tenth for estimate.
When simplifying an expression using order of operations addition MUST
ALWAYS come before subtraction.
True
False
Answers
Answer:
The answer is False,
Step-by-step explanation:
The answer is False because in some expressions if there are parentheses and there is a subtraction problem in the parentheses but there is an addition problem in front of the parentheses that does not exactly mean that you do the addition first, this is because the subtraction is inside the parentheses and so since the subtraction is in parentheses it is done fist.
Given the data below are the number of students in each age group.
Ages Number of students
15-18 9
19-22 8
23-26 2
27-30 5
31-34 7
35-38 3
Based on the frequency distribution above, find the cumulative frequency for the class with lower class limit 31.
Answers
The distance between two towns on that map is 6cm, therefore in reality there’s 6 * 50 000 = 300 000 centimetres, which is equal to 3 000 metres, which is equal to 3 kilometres.
does 1, 2, 5 from a right triangle
Answers
9514 1404 393
Answer:
no
Step-by-step explanation:
The two short sides, 1 and 2, do not have a sum greater than the long side, 5, so these lengths do not form any sort of triangle.
__
Lengths 1, 2, √5 satisfy the Pythagorean theorem, so will form a right triangle.
1² +2² = (√5)²
1 + 4 = 5 . . . . . . Pythagorean theorem is satisfied
SomEoNe plEasE anSweR tHis tYSm <3
Answers
Answer:
wouldnt it be 7m
Step-by-step explanation:
Answer:
7m
Step-by-step explanation:
3(x)m + 4(x)m = 7(x)m
m is the same value so were adding 3+4 which is 7
an example:
lets say m = 2
ur question is now 3(x)2 +4(x)2 = 7(x)2
3x2 = 6
4x2=8
6+8= 14
7x2 = 14
There is a new food delivery company that charges $10 to deliver 3 meals and $16 to deliver
12 meals. If the charging rate remains constant, how much will it cost to deliver 9 meals?
Answers
Using a linear function, it is found that it will cost $14 to deliver 9 meals.
------------------------------
A linear function has the following format:
[tex]y = mx + b[/tex]
In which
m is the slope(rate of change).b is the y-intercept(value of y when x = 0).------------------------------
To build the linear function, we use the two points given by the exercise: (3,10), (12,16)------------------------------
The slope is given by the change in y divided by the change in x, thus:
Change in y: 16 - 10 = 6Change in x: 12 - 3 = 9Slope: [tex]m = \frac{6}{9} = \frac{2}{3}[/tex]Thus:
[tex]y = \frac{2}{3}x + b[/tex]
------------------------------
Using one of the point, we can find b.I am going to use (3,10), which means that when [tex]x = 3, y = 10[/tex]. Thus:[tex]y = \frac{2}{3}x + b[/tex]
[tex]10 = \frac{2}{3}(3) + b[/tex]
[tex]2 + b = 10[/tex]
[tex]b = 8[/tex]
The cost of delivering x meals is given by:
[tex]y = \frac{2}{3}x + 8[/tex]
------------------------------
The cost of delivering 9 meals is y when x = 9, thus:
[tex]y = \frac{2}{3}(9) + 8 = 2\times3 + 8 = 6 + 8 = 14[/tex]
It will cost $14 to deliver 9 meals.
A similar problem is given at https://brainly.com/question/21010520
CAN SOMEONE PLZ HELP ME
Answers
Answer:
Slope intercept is y = mx+b.
SLOPE is m
and Y-INTERCEPt, where the thing touches the y axis is b.
The line touches the y axis at -6.
The slope is 2/3
y=2/3x-6
Step-by-step explanation:
Audrey went shopping at a kids' clothing store where the shirts and
pants were the same price. She bought 6 shirts and 8 pairs of pants.
She also bought a toy for $2. She spent a total of $100. How much did
each shirt or pair of pants cost?
Answers
6clothes+8clothes=14clothes.
98/14=7.
$7.
The surface area of the prism is
Answers
Answer:
You'll have to multiply 9x12x8x4x5 which is equal to 17,280
Meg received a 3% increase in pay, She was making $690/week
Answers
Answer:
the answer is $710.70
Step-by-step explanation:
690 x 52 (weeks in a year) = $35,880.00 x 3% = 1076.40
$1,076.40 + $35,880.00 = 36, 956.40 / 52 weeks = 710.70 per week
with the increase she got an additional $20.70 per week.
The amount that she is making after the increase will be $710.7 per week.
What is the percentage?The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.
Meg received a 3% increase in pay, She was making $690/week.
Then the amount that she is making after the increase will be
⇒ (1 + 0.03) × $690
⇒ 1.03 × $690
⇒ $710.7
The amount that she is making after the increase will be $710.7 per week.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ2
Please Help this is Due in 1 hour and I really dont understand any of this. (Question in Image)
Answers
Answer:
5.14
Step-by-step explanation:
The way i solved this was i found the length of the line by taking the 2 (Width and also "A") and the 7 (The height and also "B"), squared both of them and added them together. Then found the square root. Sense i suck at explaining things this is what the equation should have looked like. [tex]\sqrt{(2^{2} +7^{2})[/tex] ÷ 2. (Side wait for someone else to answer because i'm 70% sure this is right.
plot function f on the graph f(x) = |1/2x - 2|
Answers
Answer:
See attachedStep-by-step explanation:
Given function:
f(x) = |1/2x - 2|The function is plotted and it is below.
The graph of the function f(x) = | (x/2) - 2 | is attached with the answer the lines of the function meet at point 4 at the x-axis.
What is a graph?
A graph is the representation of the data on the vertical and horizontal coordinates so we can see the trend of the data.
The graph of the function f(x) = | (x/2) - 2 | is attached with the answer the lines of the function meet at point 4 at the x-axis.
Therefore graph of the function f(x) = | (x/2) - 2 | is attached with the answer the lines of the function meet at point 4 at the x-axis.
To know more about graphs follow
https://brainly.com/question/25020119
#SPJ2
A group of people were asked if they had run a red light in the last year. 186 responded "yes" and 130 responded "no." Find the probability that if a person is chosen at random from this group, they have not run a red light in the last year.
Answers
Step-by-step explanation:
There are 186 + 130 = 316 people total, Out of those 316, there are 186 people who responded "yes" to running a red light.
so the probablity is approximately 186/316 = 0.58860759493
If you want this probablity as percentage , then it would be approximately
58.860759493%
Thank You
Help again pls (view the photo)
Answers
Answer:
thirty-two equals two times number plus seven
Which of the following represents a fraction that converts to a repeating
decimal with a value less than one ?
0.5 0.25 0.9 0.44...
Answers
0.44… = 4/9, if you type that into a calculator you’ll see that the number 4 repeats forever
a circle has a radius of 4m. find the circumference of the circle show your worth and strictly answering used 3.14 for pi
Answers
Answer:
25.12
Step-by-step explanation:
Circumference (C) = 2πr
Where r = radius
We want to find the circumference of a circle with a radius of 4m ( this means that r = 4 )
To do so we simply plug in the value of r into the circumference formula
Formula: C = 2πr
r = 4 ( note that it says use 3.14 for π )
plug in values
C = 2(3.14)(4)
Simplify
C = 25.12
Karina is driving from her house to her cottage. If she drives at 10 kilometers per hour, she will arrive at 6 PM. If she drives at 15 kilometers per hour, she will arrive at 4 PM. How fast must she drive in order to arrive at 5 PM
Answers
Answer:
12.5 kilometers per hour
Step-by-step explanation:
[tex](10+15)/2=25/2=12.5[/tex]
Please answer this tysm :D I don’t know what the answer is
Answers
Answer:
4XP=LP
Step-by-step explanation:
4xp = lp
4 times one pig = 4 legs per pig
Please answer correctly and no links
Answers
Answer:
28
Step-by-step explanation:
-7 x 2 = -14
-14 x -2 = 28
Answer:
C. 28
Step-by-step explanation:
(-7)(2) = -14
(-14)(-2) = 28
Two negatives make a positive.
Problem 3:
What is the missing number?
13
12
25
17
BrainsYoga.com
6
2
www.Brainsy
What is the missing number
Answers
The missing number is 14, all the circles equal to 30, therefore add 11 + 5 = 16
30-16 = 14
How do I write 680,705 in expanded form.
Answers
Answer:
600,000+80,000+700+5
40 points please help
Answers
Answer:
[tex]\huge\boxed{-2}[/tex]
Step-by-step explanation:
Use any two points from the line.
Let them be:
(x1,y1) = (0,-2)
(x2,y2) = (-1,0)
Now,
[tex]\displaystyle Slope = \frac{y_2-y_1}{x_2-x_1} \\\\Slope = \frac{0-(-2)}{-1-0} \\\\Slope = \frac{2}{-1} \\\\Slope = -2\\\\\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807A worker's income is increased in the ratio 36:30.find the increase per cent
Answers
9514 1404 393
Answer:
20%
Step-by-step explanation:
The percentage increase is ...
percent change = (new/old -1) × 100% = (36/30 -1)×100% = 1/5×100% = 20%
The worker's income increased 20%.
Mary left home went on a 4 mile jog and returned home. Find her distance and displacement
Answers
Step-by-step explanation:
Well she went on a 4 mile jog and then came home so 4+4= 8. So she walked for 8 miles.
(x^4+1)(y'-x^5-3x)=4x^3.y
Answers
Answer:
vvvhnxjdhshdhrgrgdrhhdfehfhfh
Step-by-step explanation:
f jfbdhdnrbdjgmt
two i others ways to name
Answers
Answer:
What do u mean? i guess toby or biannca
Step-by-step explanation:
1 6
2 7
Find the sum of
-1/2+6/7
Answers
Step-by-step explanation:
-1/2+6/7
Take LCM
-7+12/14
5/14 Answer
Solve (−5) • (−3). (1 point)
a
−15
b
−8
c
8
d
15
Answers
Answer:
a 15
Step-by-step explanation:
two negitive numbers equal a positive number :) ur welcomee
The sum of 46.2 and a number is 49.85 as shown below. What number should go into the box to complete the addition problem?
Answers
Answer: 3.65
Step-by-step explanation:
46.2 -49.85 =3.65
