I say.... The first one! :D
Answer:
C + 1 = 1 + 1 + 1 + 1 + 1 +1
Step-by-step explanation:
Of the 520 students participating in a chess tournament, 35% were male. How many females were in the tournament?
Answer:
182
Step-by-step explanation:
take 520 and multiply by 0.35
The number of female students participated in a chess tournament is 338.
What is percentage?Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".
Given that, 520 students participating in a chess tournament, 35% were male.
Number of male students = 35% of 520
35/100 ×520
= 0.35×520
= 182
So, the number of female students
= 520-182
= 338
Therefore, the number of female students participated in a chess tournament is 338.
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Which pair of complex numbers has a real-number product?
* (1 + 3))(61)
* (1 + 3) (2-3)
* (1 + 3) (1-3)
* (1 + 3) (31)
Answer:
(1 + 3i)(1 - 3i)
Step-by-step explanation:
The product of a complex number and its conjugate produce a real number.
given a ± bi the conjugate is a ∓ bi ← where a and b are real, then
(a + bi)(a - bi)
= a² - b² ← a real number
The only pair of conjugate complex numbers in the list is
(1 + 3i)(1 - 3i)
The pair of complex numbers that has a real-number product is:
(1 + 3) (1-3) = -8
Option C is the correct answer.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
For a pair of complex numbers to have a real-number product, their imaginary parts must cancel out when the product is expanded.
Let's expand each pair of complex numbers and see which one has a
real-number product:
(1 + 3) x (61) = 61 + 183i
This product has a non-zero imaginary part, so it is not a real number.
(1 + 3) x (2-3) = -5 + 5i
This product has a non-zero imaginary part, so it is not a real number.
(1 + 3) x (1-3) = -8
This product has no imaginary part, so it is a real number.
(1 + 3) x (31) = 124 + 124i
This product has a non-zero imaginary part, so it is not a real number.
Therefore,
The pair of complex numbers that has a real-number product is:
(1 + 3) (1-3) = -8
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3) WeSell4Less car dealership has 175 cars in their sales lot. On average they sell 20% of their cars in a month. In the next month how many cars would should they sell? please help me solve this
Answer:
They should sell 35 cars next month.
Step-by-step explanation:
From the information given, you know that the dealership sells 20% of their cars in a month and you should calculate 20% of the amount of cars they have in their sales lot to know the amount of cars that they should sell next month:
175*20%=35
According to this, the answer is that they should sell 35 cars next month.
What is the solution for -3x ≥ 36? x ≤ -12 x ≥ -12 x ≤ -108 x ≥ -108
Answer:
its a
Step-by-step explanation:
Answer
im postive its A:)
Step-by-step explanation:
I dont need the work just the answer pls :)
Answer:
[tex]\sqrt{29}[/tex]
Jessica waxes 20m squared of the floor in 3/5 of an hour and waxes the floor at a constant rate. How many square meters can she wax per hour?
Answer:
E
Step-by-step explanation:
Answer:
33.3333333
Step-by-step explanation:
What is the solution to this system of equations?
5x + 2y = 29
x + 4y = 13
50 percent is c.x=5,y=2.
Answer:
X= 5, y= 2
Step-by-step explanation:
which phrase represents 3y +9
Plz somebody help me ?
Answer:
x = 10
Step-by-step explanation:
these are corresponding angles
4x = 3x + 10
x = 10
Mariza é costureira e, para determinar o comprimento de elástico, em cm, que utiliza na confecção de determinado modelo de calça, ela recorre à expressão x2+2y . Nessa expressão, x e y são medidas que variam de acordo com o tamanho da calça a ser produzida. Para o tamanho P dessa calça, ela utiliza x=40 cm e y=15 cm
The expression (-4)-1)(3)(-2) is equal to
Vijay’s wages were increased from £115 per week to £130 per week.
What was the percentage increase to one decimal place?
Answer:
13%
Step-by-step explanation:
Increase = (New Number - Old Number) / Old Number
(130 - 115) / 115
15/115 = 0.130434783.
0.130434783 * 100 (to get the percentage) = 13.0%
A bag of marbles can be shared equally among 3, 4, 5, 8 or 10 people with none left over. What is the smallest number of marbles that could be in the bag?
Please help this is due at 11:59
Answer:
120
Step-by-step explanation:
the lcm of those numbers is 120 I believe.
Christian walked directly south for 3.5
miles then walked 4.5 miles directly
east. How far is he from where he started
Melody is running in a 5K event. Her father
records her time at three places during the
event as shown in the table below.
Answer:
a
Step-by-step explanation:
i just know
PLSSSSSS HELP ME I WILL GIVE BRAINLY
Answer: (2,2)
Step-by-step explanation:
The solution of the system of equations is the intersection point, or the point where both lines meet. Looking at the graph, we see that the blue and red line meet at (2,2). That means the solution is (2,2).
We can also solve this algebraically. Since we are given that y=x, we can plug that into the equation and solve.
y+2y=6 [combine like terms]
3y=6 [divide both sides by 3]
y=2
Since we are told that y=x, we know that x is also 2. This tells us that the solution is also (2,2).
please help me! I am struggling lol
Can someone tell me the answer and explanation plz I’ll give brainlist and points
Answer:
b
Step-by-step explanation:
I double checked, its b
Find the measure of
Answer:
180-43=137....................
Sam has $40. He buys a book for $12.99 and a puzzle for $15.49.
Which equations can be used to find how much money Sam has left? And don’t understand.
Answer:
First Answer Yay
Pls help with the question in the picture
Answer:
Step-by-step explanation:
m∠ABC = [tex]\frac{1}{2}[/tex] m∠AOC = 54°
Answer: 54°
because ∠ADC is the angle at the center of the arc AC and ∠ABC is the inscribed angle of the arc AC
=> m∠ABC = 1/2. m∠ADC = 108/2 = 54°
Step-by-step explanation:
what’s the slope of (5,9) and (3,2)
Answer:
m=7/2
Step-by-step explanation:
what is the value of f (4) if it is defined by f (x) =2x+3
Answer:
11
Step-by-step explanation:
Substitute 4 for x
2(4) +3
Answer:
11
Step-by-step explanation:
F(x) = 2x+3 is just a function, so if you replace one of the "x" with 4 you have to replace the other one so it just becomes
F(4) = 2(4) + 3 then you do 2(4) = 8 then add 3 to it and it gets you 11.
hope this helps
The president wife is leading a humanitarian mission.
A. presidents
B. president's
C. presidents'
D. presidentes'
Answer:
B
Step-by-step explanation:
Technically it's describing something that belongs to the president.
Answer:
A
Step-by-step explanation:
I chosen A because it is the right answer
John paints 2 portraits in 8 hours, 3 portraits in 12 hours, and 5 portraits in 20 hours. Which statement correctly describes this situation?
Answer:
1 portrait is painted every 4 hours
Step-by-step explanation:
Okay so there aren't any statements but I realized that he paints 1 portrait every 4 hours
If this isn't an option comment them and I will try to see if any match up correctly.
Bobby and Petra are running a lemonade stand and they charge 45 cents for each glass of lemonade. To break even they must make $25. How many glasses of lemonade they must sell to break even?
Answer: 56
Step-by-step explanation:
Which property is illustrated by the equation 3 (m n) = (3 m) n?
A. associative property
B. commutative property
C. distributive property
D. identity property
Answer:
its A <33
Step-by-step explanation:
Write the equation based on the graph
Answer:
3x+3
Step-by-step explanation:
rise over run and y-intercept
Write an equation of the line through the point (–2, 5) that is perpendicular to the line y = 2/3x-2
Answer:
y= -3/2x + 2
Step-by-step explanation:
What is x=7 in slope intercept form
Please help
Answer: x=7 or undefined
Step-by-step explanation:
We can't write x=7 in slope intercept form, since it doesn't have an actual slope or y-intercept. You could put undefined, since the slope is undefined.