Answers
The solution for the given expression is: [tex]\frac{-1+ i*\sqrt{19} }{2}[/tex] and [tex]\frac{-1- i*\sqrt{19} }{2}[/tex].
What is a Quadratic Function?The quadratic function can represent a quadratic equation in the Standard form: ax²+bx+c=0 where: a, b and c are your respective coefficients. In the quadratic function the coefficient "a" must be different than zero (a≠0) and the degree of the function must be equal to 2.
For solving a quadratic function you should find the discriminant: D=b²-4ac and after that use this variable in the formula: [tex]x=\frac{-b\pm \sqrt{D} }{2a}[/tex]
Properties of Multiplication
The properties of multiplication are:
Distributive: a(b±c)= ab±ac Comutative: a . b = b. a Associative: a(b+c)= c(a+b) Identity: b.1=bHere, you should apply the distributive property for solving this expression.
x*(2x)+2*(x+5) = 2x²+2x+10
After that, you should solve the previous quadratic equation.
D=b²-4ac=4-4*2*10=4-80= -76
Then,
[tex]x_{1,2}=\frac{-2\pm \sqrt{-76} }{2*2}=\frac{-2\pm i*\sqrt{76} }{4}=\frac{-2\pm i*2\sqrt{19} }{4}=\frac{-1\pm i*\sqrt{19} }{2}[/tex]
Read more about the quadratic function here:
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Related Questions
what is 8w + 9 < –31
Answers
Answer:
w < -5
Step-by-step explanation:
Find the least number which when divided by 28, 50 and 140 leaves a remainder 7
Answers
Answer: 21
Step-by-step explanation:
First we have to find LCM (lowest common multiple) of the given number, i.e 700.
28 = 2 × 2 × 750 = 2 × 5 × 5140 = 2 × 2 × 5 × 7LCM = 2 × 2 × 5 × 5 × 7 = 700
now, let's add 7 to 700
We get the required number as 707
How do I solve these measurement problems?
Answers
Answer:
- Reagan needs to purchase 1346 centimeters. I think it solve like this (238+435)×2 =1346 cm.
- what length of fringe does Raegan need for the longer bedspread? The answer is :
1346 + 27×2 = 1400 cm.
What if there are mistakes, hope you sympathy and forgiveness !!!
is -15 an integer and rational number?
Answers
Answer:
I guess it would help you
Combine like terms to simplify the expression:
Answers
Answer:
[tex]\frac{5k -6}{10}[/tex]
Answer:
1/5k + 3/5
Step-by-step explanation:
2/5 * 2/2 = 4/10
4/10k + 1/10k = 5/10k = 1/2k
1/2k + 3/5
Pierre travels by plane from Paris to Singapore. The plane leaves Paris at 16 35 on Thursday and arrives in Singapore 13 hours and 45 minutes later. The local time in Singapore is 6 hours ahead of the local time in Paris. Work out the day and time in Singapore when the plane arrives
Answers
Step-by-step explanation:
16:35 plus 6 hours to account for them being 6 hours ahead is 22:35 off the bat. we then add 13.75 hours which goes to Friday at 12:20 pm.
Please help! You don’t have to explain how you got the answer! Tysm.
Answers
2.) .8
3.) .6
4.) .285714286
5.) .15
Simplify
[tex] \frac{2(a - 3)}{(a - 4)( a- 5)} + \frac{ - 1}{( 3 - a)( a- 4)} + \frac{a - 2}{( 5 -a )(a - 3)} [/tex] please solve this!
Answers
A large pumpkin weighs 10.4 pounds. A smaller pumpkin weighs 3.6 pounds. How much less does the smaller pumpkin weigh?
Answers
Answer:
6.8 pounds less than the large pumpkin
Step-by-step explanation:
10.4 - 3.6 = 6.8
I hope this is helpful :)
……………………bsjsjdjdnxnxixixmmdsijsnd dx
Answers
Fabric costs $11.99 a yard. Leo buys 4 yards of red fabric and 3 yards of blue fabric. How much does Leo spend on fabric?
Answers
Answer: 83.93 dollars
Explanation:
He bought 4+3 = 7 yards total
He spent 7*11.99 = 83.93 dollars
This is assuming that the red and blue fabrics cost the same per yard.
Step by step explanation:
4+3 = 7
11.99 x 7 = 83.93
The triangles shown below must be congruent.
80°
10
800
510
510
O A. True
B. False
Answers
Answer:
True
Step-by-step explanation:
Answer:
A. True
because they are identical shapes
Just got back to class after summer, brain needs some refreshing.
Answers
The range is the y-values used by the graph.
With respect to the x-axis, the graph starts at 0 on the left and goes as far as x=15.
With respect to the y-axis, the graph starts as low as 0 (vertically) and goes as high as 75.
The range is 0≤x≤15.
The domain is 0≤y≤75.
Help with 4 and 5 I don’t get it lol
Answers
Answer:
FIRST !!!!
anything raised to the zero power is equal to 1 (one)
so I think that three is wrong....
as for 4....
3/3 = 1 5/5= 1 x/x = 1 anything divided by itself is one...
so you have 1*1 = 1
as for 5 ... it is the same as for ALL THE STUFF on the TOP
gets cancelled by the SAME items on the BOTTOM ???/??? if they are the same the answer is 1
NOTE if ??? = zero then we have a problem .. you can't divide by zero that is an exception
Step-by-step explanation:
Answer:
When you have the same numerator and denominator in a fraction, it is always equal 1.
The answer is 1.
Step-by-step explanation:
Damon works 32 hours per week and earns $10.75 per hour.
a. Estimate his weekly earnings. Explain how you determined
your estimate.
b. Find the exact amount he earns per week.
c. Is your answer reasonable based on your estimate? Explain.
u will be awarded brainlest if u answer this correctly.
Answers
B 10.75 times 32 is 344$
C they are both close
-8.2 +9.1
Yes I’m just making sure I got this question right but tell me what the answer is pls!
Answers
Answer:
0.9 is your answer.
A copy machine makes 44 copies per minute. How long does it take to make 187 copies
Answers
187 / 44 = 4.25
60 seconds per minute / .25 (4) = 15 seconds
So, 4 minutes and 15 seconds (4.25 minutes) is how long it will take to make 187 copies
helpppp 2x-1>5 and 3x-5<19
Answers
Answer:
3 < x < 8
Step-by-step explanation:
Solve each part separately
2x - 1 > 5 ( add 1 to both sides )
2x > 6 ( divide both sides by 2 )
x > 3 , that is
3 < x
and
3x - 5 < 19 ( add 5 to both sides )
3x < 24 ( divide both sides by 3 )
x < 8
Then putting the two together
3 < x < 8
Helppppppop meeeeeee
Answers
Answer:
option b
is the answer
please check it
Wallace writes the number 72,204 in a
place-value chart. Select the places that
will be filled on the chart.
Ones
Tens
Thousands
Ten thousands
Hundred thousands
Can anyone help
Answers
looks like the answer C. Thousands.
In the number 72,204 the ones, tens, thousand, and ten thousand will be 4,0,2, and 7 respectively.
What are digits?In a positional numeral system, a numerical digit is a single sign that can be used singly or in combination to represent numbers.
A digit is a part of a set that, when combined, makes up a numeration system.
For example 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 are digits.
The place value of a general abcd digit is given by
d = ones
c = tens
b = hundreds
a = thousands
So,
In the given number 72,204
4 = ones
0 = tens
2 = hundreds
2 = thousands
7 = hundred thousand
Hence "In the number 72,204 the ones, tens, thousand, and ten thousand will be 4,0,2, and 7 respectively".
To learn more about digits,
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Natalie is baking a cake and cookies for her daughter's class party. She needs 1 2/3 cups of milk for the cake and 1/2 cup for the cookies. If she
has 3 cups of milk total, how much will she have left?
Answers
hope this helps
Answer:
answer- 0.833 cups
Step-by-step explanation:
Please help me and tysm i’m advance!!
Answers
Answer:
[tex]r = \sqrt{\frac{3V}{'pi'h}}[/tex]
replace the 'pi' in that equation to the symbol pi, π
Step-by-step explanation:
PLEASE HELP 20 POINTS WILL GIVE BRAINLIEST
Answers
72 divided by 3 = 24.
Three consecutive even integers have a sum of 36. Find the integers.
Answers
first integer=x
second integer=x+1
third integer= x+2 (x + 1 + 1)
x + (x + 1) + (x + 2) = 36
Is 28 an integer, rational, or an irrational number?
Answers
Answer:
integer
Step-by-step explanation:
please give brainliest
Answer:
28 is an integer and a rational number because it is a whole number and it is positive. if there is only one choice, choose rational.
Step-by-step explanation:
hope this helps!
Washington High School is building a new running track. The track is
constructed from a rectangle and two semicircles, as shown.
10244
500R
What is the best estimate of the total distance around the track?
A) 1320 feet
B) 1000 feet
C 1204 feet
D) 1560 feet
Answers
Share £18 into the ratio 1:5
Answers
Total parts = 1+5 = 6
1/6 * 18 = £3
5/6 * 18 = £15
In a geometric sequence each term is positive, the first term is 4 and the third term is 9.
What is the sum of the first four terms?
Answers
Answer:
4 _____ 9
the geometric sequence is the addition of 2.5 to every number until the specific amount you are to get
4+2.5=6.5 that is the second term
if I then add 2.5 to 6.5it will give me 9 which is the third term but we are asked to find the sum of the first 4terms so 9+2.5=11.5
if we are to add 4,6.5,9 and 11.5 it would give me =31 which is the final answer.
hope this helps.
PLEASE HELPP Classify each angle.
2)
3)
1)
4)
5) 180 degrees 6) 8 degrees
7) 90 degrees 8) 159 degrees
9) Draw the straight angle HGF. 10) Draw the right angle B. 11) Draw the obtuse angle G.
12) Draw the acute angle T.
Answers
1. Straight Angle
2. Right Angle
3. Acute Angle
4. Obtuse Angle
5. Straight Angle
6. Acute Angle
7. Right Angle
8. Obtuse Angle
Can someone help please ?
Answers
Answer:
B because Comp A is $60 for sure plus $42.95 per month and Comp B is $25 for sure and $49.95 per month
