Answers
Answer:
answer is c
Step-by-step explanation:
Mark my answer as brainliest
Related Questions
Solve for x 6x^2=2x-1
Answers
Answer:
[tex]\displaystyle x=\frac{1\pm i\sqrt{5}}{6}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Standard Form: ax² + bx + c = 0Quadratic Formula: [tex]\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]Algebra II
Imaginary Roots: √-1 = iStep-by-step explanation:
Step 1: Define
6x² = 2x - 1
Step 2: Rewrite
Subtract 2x on both sides: 6x² - 2x = -1Add 1 to both sides: 6x² - 2x + 1 = 0Step 3: Identify Variables
a = 6
b = -2
c = 1
Step 4: Solve for x
Substitute [QF]: [tex]\displaystyle x=\frac{2\pm\sqrt{(-2)^2-4(6)(1)} }{2(6)}[/tex]Exponents: [tex]\displaystyle x=\frac{2\pm\sqrt{4-4(6)(1)} }{2(6)}[/tex]Multiplication: [tex]\displaystyle x=\frac{2\pm\sqrt{4-24} }{12}[/tex](Square Root) Subtract: [tex]\displaystyle x=\frac{2\pm\sqrt{-20} }{12}[/tex]Factor: [tex]\displaystyle x=\frac{2\pm \sqrt{-1} \sqrt{20} }{12}[/tex]Simplify: [tex]\displaystyle x=\frac{2\pm 2i\sqrt{5} }{12}[/tex]Factor GCF: [tex]\displaystyle x=\frac{2(1\pm i\sqrt{5} )}{12}[/tex]Simplify: [tex]\displaystyle x=\frac{1\pm i\sqrt{5}}{6}[/tex]Given a mean of 518, a standard deviation of 22, and a sample size of 200, calculate a 95% confidence interval.
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Answer:
do you want me to look it up for you?
The number of entertainment websites in 1995 was 54. By 2004 there were 793 entertainment websites. Approximately what was the rate of change for the number of websites for this period of time?
A. 82 websites per year
B. 739 websites per year
C. 12.18 websites per year
D. 424 websites per year
Answers
Answer:
Step-by-step explanation:
2004 - 1995 = 9 years
793 - 54 = 739 new sites
739 / 9 = 82.1111111111
approx 82 websites per year change.. ( delta is change )
Describe how to transform the graph of f into the graph of g. (2 points)
f(x) = x2 and g(x) = -(-x)2
The graph shifts left one unit.
Reflect the graph of f across the y-axis and then reflect across the x-axis.
Reflect the graph of f across the y-axis.
Reflect the graph of f across the x-axis.
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Answer:
Reflect the graph across the x-axis from the positive Quadrant of x-axis to the negative quadrant of x-axis while maintaining the coordinates.
(x⁴ + 8x³ - 45x + 30) ÷ (x + 7)
Topic is Polynomials. Find the answer using long division. Please, provide detailed steps.
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Answer:
Step-by-step explanation:
I added 3 images labelled Synthetic division 1 , 2 , 3 . I hope you understand this. It's really hard to type the method in the format so I used an online calculator symbolab.
Answer:
The quotient is: [tex]x^3+x^2-7x+4[/tex]
The remainder is: 2
Step-by-step explanation:
We need to solve the polynomials [tex](x^4 + 8x^3 - 45x + 30) \div (x + 7)[/tex]
by using long division.
The long division is done in figure attached.
The quotient is: [tex]x^3+x^2-7x+4[/tex]
The remainder is: 2
good night dears...❤️❤️❤️
Answers
Answer:
gn
Step-by-step explanation:
Answer:
Good Night! :)
Logan saved $35 from cutting the neighbor’s yard. He earns $10 a week from washing dishes, which he also saves. Which function can be used to find s, the amount of money Logan will have saved at the end of w, weeks of washing dishes?
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the answer is “s = 10w + 35” since he already has 35 but needs to find out how many weeks he washed the dishes :))
can someone please help me with this question?
Answers
Answer:
BA ≈ 1.88
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesTrigonometry
[Right Triangle Trig] sin∅ = opposite over hypotenuseStep-by-step explanation:
Step 1: Define
We are given a right triangle. We can use trig to find the missing length
Step 2: Identify Variables
POV from angle C
Angle = 28°
Adjacent = BA
Hypotenuse = 4
Step 3: Solve for BA
Substitute [sine]: sin28° = BA/4Isolate BA: 4sin28° = BAEvaluate: 1.87789 = BARewrite: BA = 1.87789Round: BA ≈ 1.88Чу- 8х + 5x - Зу
OOoO
Answers
Explanation: do 4y-3y which equals 1 which just equals Y. Then do -8x+5x which equals -3x
im gonna assume that ur just simplifying this equation so here it is
y-3x
hope this helped!!
What is the average of 139 and 78?
Answers
Answer:
108.5
Step-by-step explanation:
(139 + 78)/2 = 217/2 = 108.5
Answer:
108.5
Step-by-step explanation:
add 139 and 78 then divide by 2
a car travels 30 1/5 hour.what is the average speed,in miles per hour,of the car?
Answers
Answer:
4
Step-by-step explanation:
because if its one out of 5 divide 5 by 30 then u get 4
What is the solution to the system below?
x + y = 5
x - y = 3
Answers
( x, y ) = ( 4, 1 )
hope it helps!
Answer:
x= 4
y= 1
Step-by-step explanation:
by adding 2 equations
2x = 8
x= 4
by sub. in Equation 1
4+y=5
y = 5-4
y= 1
Please answer this question!!!
Answers
9514 1404 393
Answer:
x = 9 cm
Step-by-step explanation:
The formula for the surface area of a cylinder can be written as ...
SA = 2πr(r +h) . . . . . where r is half the diameter, and h is the height
For the given cylinder, we have ...
972π cm² = 2π(x)(x+5x) = 12πx²
Dividing by 12π gives ...
81 cm² = x²
Taking the square root, we have ...
9 cm = x
how many 3 element subsets of {1, 2, 3, 4, 5, 6, 7, 8, ,9, 10, 11} are there for which the sum of the elements in the subset is a multiple of 3
Answers
Answer:
There are 155 ways in which these elements casn occur.
Step-by-step explanation:
We want 3 element subsets whose sum are multiples of 3
1+2+3= 6
1+2+6= 9
1+2+9= 12
1+9+11=21
1+3+5=9
1+4+8=12
1+5+6=12
1+6+8=15
1+7+10=18
1+8+9=18
1+9+11=21
2+3+7=12
2+4+6=12
2+4+9=15
2+5+11=18
2+6+7=15
2+7+9=18
2+8+5=15
2+8+11=21
2+9+10=21
3+6+9= 18
3+9+11=21
3+10+11=24
6+9+10=27
6+8+11=27
6+7+11=24
7+8+9= 24
8+9+10=27
7+9+11=27 .........
We have 11 elements
We need a combination of 3
The combinations can be in the form
even+ even+ odd
odd+odd+odd
even + odd+odd
So there are 3 ways in which these elements can occur
Total number of combinations with 3 elements =11C3= 165
There are 6 odd numbers and 5 even numbers.
Number of subsets with 3 odd numbers = 6C3= 20
Number of two even numbers and 1 odd number = 5C2*6C1=10*6= 60
Number of 2 odd and 1 even number = 6C2* 5C1= 5*15= 75
So 20+60+75=155
There are 155 ways in which this combination can occur
solve the equation A = P + Prt for r. Solve the equation A = P + prt for p.
Answers
Answer:
b
Step-by-step explanation:
can someone please help me :(
Answers
Answer:
41/3 - 14 - Square root of 200
Step-by-step explanation:
41/3 is between 13 and 14
14 is 14
Square root of 200 is between 14 and 15
Please help I’m so confused, I’ve been doing testes all day so my brain is fried. Pleaseee
Answers
Answer: 40%
Step-by-step explanation: 20 hours jogging/ 50 total hours gives you .4 which is 40%
Switch the rule 2(x - 5) + 12 into simplified (or standard) form.
Please show the work aswell
Answers
Answer:
6x + 9
Step-by-step explanation:
2(3x + 1) + 7, distribute 2 through the parentheses
↓
6x + 2+7
↓
6x + 9
Hope this helps!:)
Diego measured the length of a pen to be 22 cm.
The actual length of the pen is 23 cm.
What is the percent error for Diego’s measurement?
Explain or show your reasoning.
Answers
Based on this question, we know that Diego measured the length of a pen which were to be 22cm so that we would get the actual length of the pen that is 23cm.
So what we need to do is do the percentage//which is decreasing
(22-22)/22x100
=1/22x100
=4.5%, therefore the percent error for Diego’s measurement is 4.5% because what we did was find the percentage decrease by multiplying 100 by 22 minus 22 over 22.
Answer:
let's talk here as to get rid of him
Jerome's sister told him to multiply both the amount of water and the amount of drink
mix by the same number to keep the ratio of water to drink mix the same and still
increase the total amount of energy drink.
a) Complete the table below. (2 points)
Original
Ratio
X1
x2
*3
X4
Drink mix help me plz fast
(cups)
3
Water (cups)
8
Answers
Answer:
See below
Step-by-step explanation:
a) Completing table:
×1 column: 3×1 = 3, 8×1 = 8 ⇒ numbers 3 / 8×2 column: 3×2 = 6, 8×2 = 16 ⇒ numbers 6 / 16×3 column: 3×3 = 9, 8×3 = 24 ⇒ numbers 9 / 24×4 column: 3×4 = 12, 8×4 = 32 ⇒ numbers 12 / 32b) Yes, Jerome's sister is correct because 3/8 ratio is same as 3n/8n where n is the number both numerator and denominator are multiplied to, it keeps the ratio as is but helps to increase the amount of drink
You will get brainliest!
Answers
Answer:
15,90
Step-by-step explanation:
it goes by 6
(14 x 6=84) and so on and so forth
Farmer John can till his field 1.5 times faster than Farmer Bob. If they work together, they can till the field in 6 hours. How long would it take Farmer John on his own
Answers
Answer:
It would take Farmer John 10 hours on his own to till his field.
Step-by-step explanation:
Let;
J = Time spent by John alone
B = Time spent by Bob alone = 1.5 * J = 1.5J
Time spent by both = 6
Using reciprocal, time spent by John alone can be calculated as follows:
(1 / J) + (1 /1.5J) = 1 / 6
Multiply through by 6J and solve for J, we have:
(6J / J) + (6J / 1.5J) = 6J / 6
6 + (6 / 1.5) = J
J = 6 + 4 = 10
Therefore, it would take Farmer John 10 hours on his own to till his field.
2x+5+3x+6= combine like terms to simplify each expression
Answers
Answer:
5x +11
Step-by-step explanation:
Answer:
5x+11
Step-by-step explanation:
Please give brainliest
r!×p(5,r)=40....r=??
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pr!(5,r)= 40
hope this helps
What’s is the solution to the equation x to the power of 2 =16/25
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Answer:
[tex]x=\dfrac{4}{5}[/tex]
Step-by-step explanation:
The given equation is :
[tex]x^2=\dfrac{16}{25}[/tex]
We need to find the value of x.
When the exponent 2 removes from LHS, it will shift to RHS as square root as follows :
[tex]x=\sqrt{\dfrac{16}{25}}[/tex]
We know that, 4×4= 16 and 5×5 = 25
So,
[tex]x=\sqrt{\dfrac{4\times 4}{5\times 5}}\\\\x=\dfrac{4}{5}[/tex]
So, the solution of the given equation is 4/5.
Can somebody help me
Answers
Answer:
AB ≈ 3.14 ft
Step-by-step explanation:
The arc AB is calculated as
AB = circumference of circle × fraction of circle
= πd × [tex]\frac{45}{360}[/tex] ( where d is the diameter )
= 8π × [tex]\frac{1}{8}[/tex]
= π
≈ 3.14 ft ( to 2 dec. places )
How many times does 20 go into 168?
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8 times
Explanation:
If you divide 168 by 20, you get 8.4, and the whole number is 8 so that’s the answer.
Answer:
8.4
Step-by-step explanation:
How many times 20 goes into 168 = 168/20
= 8.4
Pls mark as brainliest <3
Y=x2+2x+5
Write each function in vertex form.
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([tex]\sqrt{\frac{2}{3}[/tex]) plsexplain and solve hurry
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Answer:
√6/3
Step-by-step explanation:
Answer:
srry i need points
Step-by-step explanation:
I need help with this question!!!
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Answer: B. positive 6
Step-by-step explanation: Addomg the positive number to a negative number would turn it to a positive eventually. So u covert your factions to decimals to better see the resemblance. And 1 1/2 is the same as 1.5, and 2 1/10 is the same as 2.1 but it’s easier to deal with decimals. So then just add the positive to the negative sense 1 1/2 is closer to zero. I hope this helps I’m not the best at explaining things