We'll assume the quadratic equation has real coefficients
Answer:
The other solution is x=1-8i.
Step-by-step explanation:
The Complex Conjugate Root Theorem
if P(x) is a polynomial in x with real coefficients, and a + bi is a root of P(x) with a and b real numbers, then its complex conjugate a − bi is also a root of P(x).
The question does not specify if the quadratic equation has real coefficients, but we will assume that.
Given x=1+8i is one solution of the equation, the complex conjugate root theorem guarantees that the other solution must be x=1-8i.
Answer:
the answer would be x= 1-8i
Step-by-step explanation:
plato said so
Tickets to a basketball game can be ordered online for a set price per ticket plus a $5.50 service fee. The total cost in dollars for ordering 5 tickets is $108.00. Which linear function represents c, the total cost, when x tickets are ordered?
A.c(x) = 5.50 + 20.50x
B.c(x) = 5.50x + 20.50
C.c(x) = 5.50 + 21.60x
D.c(x) = 5.50x + 21.60
Answer:
the answer is A i take a test on it i hope it help
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Please help!
575 mL = __ L
0.987 m = __ mm
24 kg = __ g
1,350 cm = __ m
Answer:
575mL= 0.575 Liters
0.987 Meters = 987 Millimeters
24 Kilograms = 24000 Grams
1,350 cm = 13.5m
Write the equation of the line with the slope of 10 that goes through the point 8,-2 in point slope form
Answer:
y=10x+28
Step-by-step explanation:
y=10x+28
y=(10*-2)+28
y=-20+28
y=8
The linear equation of the line is y + 2 = 10(x - 8)
How to determine the line equation?The slope is given as:
m = 10
The point is given as:
(x1, y1) = (8, -2)
The equation in point slope form is calculated as;
y - y1 = m(x - x1)
So, we have:
y + 2 = 10(x - 8)
Hence, the linear equation of the line is y + 2 = 10(x - 8)
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10 - w = 1.5 Find w.
Answer:
8.5
Step-by-step explanation:
w is 8.5
Answer:
8.5
Step-by-step explanation:
-w=1.5-10 the opposite of 10 is negative 10
-w=-8.5
w=8.5 you are trying to get just w not negative w
so two negatives equal a positive or -1
times -8.5 is a positive 8.5
Alfred and his 4 friends bought 13 1/4
pounds of gummy bears at 1.20 a pound. What is the total cost of the gummy bear?
Answer:
$15.90
Step-by-step explanation:
$1.20 x .25 is the cost of 1/4 pound = $ 0.30
13 lbs × 1.20 = $15.60
15.6 + .3=15.9
A science club at Emily’s middle school has 25 members. Only 40% of the members attended Saturday meetings. What is the number of members that attended the Saturday meetings?
A. 6
B. 9
C. 10
D. 15
(Will give brainliest and a heart)
SOLVE FOUR AND FIVE I WILL GIVE BRAINLIST!
Answer:
see explanation
Step-by-step explanation:
The circumference (C) of a circle is calculated as
C = πd ( d is the diameter )
(4)
Here d = 18, thus
C = 18π in
(5)
Here C = 50π, thus
πd = 50π ( divide both sides by π )
d = 50 in
The radius r is one half of the diameter , thus
r = 50 ÷ 2 = 25 in
‼️WILL LIST BRAINLIEST ‼️what is the equation?
Answer: 10 plus 13.50 plus another 13.50 for another 10 songs and then whatever is half of 13.50 which is 6.75 is the cost of the entire 25 songs which is 27 plus 6.75 and you would get 33.75 hope this helps
Step-by-step explanation:
Answer:
its 33.75
Step-by-step explanation:
pay attention
Can someone hep me on this
please help, I don't understand..
Thanks!
Answer:
$109.45
Step-by-step explanation:
On Monday in the morning you worked 4 hours, so plug in the equation.
12.50(4)= $50
On Monday in the afternoon you worked 4 hours and 45 min
12.50(4) = $50
Then do 12.50/60 to get .208 ≈ .21
So 45(.21) = $9.45
50 +50 + 9.45= 109.45
What is the remainder of 74 divided by 7
Answer:
The division rest of 74 by 7 equals 4, and the value of the quotient is 10. Proof: 74 = (7×10) + 4.
Step-by-step explanation:
hope this helped and is that iready??
The remainder of 74 divided by 7 is 4.
What is Division?Division is one of the operation in mathematics where number is divided into equal parts as that of a definite number.
When a number is divided by another number, the number which is being divided is the dividend. Divisor is the number which divides the dividend.
Quotient is the value after the division process.
Remainder is the remaining value after the division.
If the dividend is completely a factor of divisor, remainder will be zero.
Otherwise there will be a non zero number as the remainder.
74 is not a multiple of 7.
70 is the multiple of 7 which is closest to 74.
Remainder = 74 - 70 = 4
Hence the remainder is 4.
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Plz help! Is this right? Question is below!
Answer:
yes
Step-by-step explanation:
Cybil owes her sister $7. Her aunt pays her $5 to walk her dog. How much money does she have after she pays her sister?
Answer $-2
Step-by-step explanation:
CM = Cybil's Money = 0
Aunt Pays
CM = 5
Sister
5-7 = (-2)
Z/3 + 18= -35........2 step equations
Answer:
z=−159
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
1
3
z+18=−35
Step 2: Subtract 18 from both sides.
1/3z+18−18=−35−18
1/3z=−53
Step 3: Multiply both sides by 3.
3*(1/3z)=(3)*(−53)
z=−159
Below is a scale drawing of a stage that Syla is designing. A rectangle with length 8 centimeters and width 5 centimeters. Using the scale 1 cm : 7 m, Syla calculated the width, or the shorter side of the stage, to be 35 m. She decides to change the scale to 1 cm : 10 m. What is the width of the new stage?
Answer:
50mStep-by-step explanation:
Given the dimension
Length of the rectangle = 8cm
Width = 5cm
Note that when the scale was 1:7, syla multiplied the width by a factor of 7 i.e 5*7 = 35m
If syla changes the the scale to 1 cm : 10 m for the rectangle, then the width of the shorter side will be multiplied by a factor of 10 due to the change in scale i.e;
5 * 10 = 50m
Hence the width of the new stage will be 50 m
Answer:
50m
Step-by-step explanation:
took the quiz on edg
Pls help! I will mark brainliest!!!
Answer:
The answer should be -1 degree
Step-by-step explanation:
Combine all temperatures then divide by amount added together in this case five
I’ll give brainliest
Answer: a
Step-by-step explanation:
3y-27=5y+9-y
please help
Answer:
y=−36
Hope this helps
Answer:
Today: Thursday, 15 October 2020
Hour: 05.11 WIB (in Indonesia)
______________________________
3y - 27 = 5y + 9 - y
3y - 5y + y = 27 + 9
-y = 36
y = -36
Which value is an approximate of √27 (square root of 27)
A: 3.0
B: 5.2
C: 9.0
D: 13.5
Answer:
C) 5.2
Step-by-step explanation:
The real thing looks like this 5.19615242 …
But if you round it, the answer would be 5.2.
Answer:
B
Step-by-step explanation:
Round to the nearest integer. Its closest to 5, because its sqrt 25
Alexis opened a savings account with a $120 deposit. Each week she will put $20 into the account. The equation that gives the total amount t in her account is t 120 20w, where w is the number of weeks since she opened the account. How much money will Alexis have in her savings account after 5 weeks?
Answer:
The amount of money Alexis will have in her savings account after 5 weeks is $ 220.
Step-by-step explanation:
The equation that gives the total amount t in her account is t=120+20w, where w is the number of weeks since she opened the account.
To calculate the amount of money Alexis will have in her savings account after 5 weeks, you replace the number of weeks w since she opened the account by 5:
t=120+20*5
Solving, you get:
t=120+100
t=220
The amount of money Alexis will have in her savings account after 5 weeks is $ 220.
Evaluate x3−y2 if x=2 and y=34
Answer:
- 62Step-by-step explanation:
Evaluate x3−y2 if x=2 and y=34
substitute x=2 and y=32 into the expression:
= x3 - y2
= (2)3 - (34)2
= 6 - 68
= -62
An expression is defined as a set of numbers, variables, and mathematical operations. The value of the expression x³−y², when x=2, y=34 is −1,148.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
Given the expression x³−y² and the value of the expression when x=2 and y=34 can be calculated by substituting the values in the expression. Therefore, the expression can be written as,
x³ − y²
Substitute the value of x and y in the expression,
= (2)³ − (34)²
Opening the bracket,
= 8 − 1,156
= −1,148
Hence, the value of the expression x³−y², when x=2, y=34 is −1,148.
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Evaluate the expression:
1 - 2(x-y) when x = -2, y = 1
Answer:
7
Step-by-step explanation:
Plug in the values of x and y: 1 - 2(-2 - 1)Solve what's in parenthesis: -2 - 1 = -3Plug in -3: 1 - 2(-3)2 × -3 = -6Plug -6 in: 1 - -6Simplify: 1 + 61 + 6 = 7I hope this helps!
Answer:
7
Step-by-step explanation:
Substitute the values into the corresponding variables.
1 - 2(-2 - 1)
1 + 4 + 2
= 7
George is making brown paint he wants to make brown paint he must mix purple and yellow paint together in a 1:1 ratio. In order to make purple he must mix red and blue paint together at a ratio of 2 quarts red to 1 quart of blue. How many quarts of yellow does he need
Answer:
3/4 quarts of yellow paint is needed
Step-by-step explanation:
From the question, we are told that:
In order to make purple he must mix red and blue paint together at a ratio of 2 quarts red to 1 quart of blue.
3 quart of Purple paint mix requires 2quarts of red paint and 1 quart of blue paint.
We are also told that:
When George wants to make brown paint he must mix purple and yellow paint together in a 1:1 ratio.
This means 1 Purple paint to 1 Yellow paint
4/4 quarts of Yellow paint = 1 yellow paint
3/4 quarts of Yellow paint = 3/4 quarts of purple paint
Find the midpoint of the segment with the following endpoints.
(10, 1) and (3,-6)
Someone please help?
Answer: x midpoint 6.5 y midpoint -2.5
Step-by-step explanation:
Answer:
(6.5,-2.5)
Step-by-step explanation:
midpoint=( X1+X2/2 , Y1+Y2/2)
midpoint= (10+3/2 , 1+-6/2)
midpoint =(6.5,-2.5)
This is algebra 1
Determine if (2,4) is a solution to this inequality: y < 2x + 2. Explain your reasoning.
Answer:
Yes
Step-by-step explanation:
To check if (2,4) is a solution to the inequality, y<2x+2, substitute the values of x and y in the inequality and see if it holds good for those values
y=4, x=2
Let's see if 4<2*2+2 => 4<4+2 => 4<6
And the inequality is true. So, (2,4) is a solution to this inequality
Answer:
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Algebraically, the point (1, -5) satisfies the first inequality, but it does not satisfy the second inequality because -5 is not greater than -5. Graphically, the point (1, -5) lies in the shaded area of the first inequality but lies on the dashed line of the second inequality, which is not inclusive. Therefore (1, -5) is not a solution to the given system of inequalities.
Chris wants to fence a square area of his yard for his dogs. if he wants the area of the square to be 121 square feet, what does the perimeter of the square need to be?
please i'm about to fail
Answer: the perimeter of the square is 44
Answer:
44 ft
Step-by-step explanation:
The area (A) of a square is calculated as
A = s² ( s is the side length )
Here A = 121, thus
s² = 121 ( take the square root of both sides )
s = [tex]\sqrt{121}[/tex] = 11
Perimeter = 4 × 11 = 44 ft
2.
+
14. -8+(-8) + (-9)
10
1. To the nearest ten and the nearest hundred, a store sold about 300 puzzles.
Which could be the number of puzzles the store sold? (3.NSBT.1)
A. 305
B. 279
C. 295
D. 312
Answer:
B. 279
Step-by-step explanation:
Given f(x) = 4x -17 and g(x)=5/2x+7;x≠0 solve the equation f^-1(x)=g^-1(x)
If Kim owns 5 shares of stock and receives $12 per year how many shares of stock will she need to receive $24
Answer:
10
Step-by-step explanation:
one possible way to do this is to simply observe that 12*2 =24, so 5 shares must also be multiplied by 2
another way is to set up a proportion, 5/12=x/24, cross multiply, 5*24=12x, solve for x, x=(5*24)/12=10