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Related Questions
what is the value of (-3+3i)+(-2+3i)?
-5-6i
-5+6i
5+6i
5-6i
Answers
Answer:
B. -5 + 6i
Hope this is right. Have a good day, and don't forget to be tiger fierce!! :)
In a card game, one of the players wants to draw two DIAMONDS in a row from a newly shuffled deck. (Recall a deck of cards has 52 total cards
and 13 of each symbol, including 13 diamonds.)
Create a tree diagram.
What is the probability ONE of the two cards is a diamond?
What is the probability the second card is a diamond, GIVEN the first card drawn was a diamond?
(CLICK YOUR ANSWER FROM THE OPTIONS BELOW. DON'T TYPE YOUR ANSWER IN.)
Word Bank:
382.59.235.254.191 25.559 231
Blank 1:
Blank 2:
Answers
Part A
The probability of getting diamonds on the first draw is 13/52 since we have 13 diamonds out of 52 total.
The probability of getting a non-diamond card on the second selection is 39/51 since we have 39 non-diamond cards out of 52-1 = 51 cards left over. Whatever card that was selected first is not put back. In this scenario, we are picking exactly one diamond card.
The probability of both events occurring is (13/52)*(39/51) = 13/68. I skipped a few steps but hopefully you can see how I arrived at that fraction.
The same probability shows up if we had a non-diamond card drawn first followed by a diamond card. This is because we compute (39/52)*(13/51) = 13/68.
So overall, the answer as a fraction is 13/68 + 13/68 = 26/68 = 13/34
The answer in decimal form is roughly 13/34 = 0.3824 which converts to 38.24%
---------------
Answer in fraction form = 13/34Answer in decimal form = 0.3824 (approximate)Answer in percent form = 38.24% (approximate)============================================================
Part B
We're told that "given the first card drawn was a diamond" so we only need to worry about the second card.
We have 13-1 = 12 diamonds left out of 52-1 = 51 total.
The probability of picking another diamond is 12/51 = 0.2353 approximately. This converts to 23.53%
-----------------
Answer in fraction form = 12/51Answer in decimal form = 0.2353 (approximate)Answer in percent form = 23.53% (approximate)n is an integer with -5 < 2n <6
write down all the values of n?
Answers
Answer:
The values of n are less than 3 and more than (-5/2)
Step-by-step explanation:
The given inequality is :
-5 < 2n <6
We need to write the values of n.
Dividing both sides of the inequality by 2. So,
[tex]\dfrac{ -5}{2} < \dfrac{2n}{2} <\dfrac{6}{2}\\\\=\dfrac{ -5}{2}<n<3[/tex]
So, the values of n are less than 3 and more than (-5/2).
Find the lengths of the segments with variable expressions
Answers
Answer:
EF = 7 units
AD = 3 units
BC = 11 units
Step-by-step explanation:
Since it is an isosceles trapezoid and the midsegment is x, the sum of the bases divided by 1/2 is the value of the midsegment, x.
x = 1/2(x-4 + 2x-3)
x = 1/2x - 2 + x - 1 1/2
x = 1 1/2 x - 3.5
-1/2 x = -3.5
x = 7 units
EF = 7 units
AD = 7-4 = 3 units
BC = 2(7) - 3 = 11 units
The measurements of the trapezoid are EF = 7 units, AD = 3 units and BC = 11 units
What are trapezoids?A type of quadrilaterals having one pair of parallel sides are considered as trapezoids.
Given is a trapezoid, with midsegment = x, bases = x-4 and 2x-3
Since it is a trapezoid and the midsegment is x, the sum of the bases divided by 1/2 is the value of the midsegment, x.
x = 1/2(x-4 + 2x-3)
x = 3x/2 - 7/2
2x = 3x-7
-1/2 x = -3.5
x = 7 units
EF = 7 units
AD = 7-4 = 3 units
BC = 2(7) - 3 = 11 units
Hence, the measurements are EF = 7 units, AD = 3 units and BC = 11 units
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???????......????...??..??…??..?.?.?..
Answers
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
Help me please please help me
Answers
Answer:
0.26
Step-by-step explanation:
first criss cross then it came 8 over 15 and divide by 2 is 0.26
In a computer catalog, a computer monitor is listed as being 25 inches. If the height of the screen is 15 inches, what is the area of the screen to the nearest inch?
Answers
Answer: 20inch
Step-by-step explanation:
Using the Pythagoras theorem:-
25^2 = 15^2 + x^2 where x = the width of the screen.
625 = 225 + x^2
x = √(625 - 225) = √400
= = 20 ins
what is the common ratio? {250, 50, 10, 2...}
Answers
Answer:
5
Step-by-step explanation:
The common ration can be found by dividing the 2nd number from the 1st number:
250 / 50
which equals 5
250 / 50 = 5
you can do this by any number, for example:
50 / 10 =5
10 / 2 = 5
What is the area of this figure?
Answers
Answer:
989 ft.
Step-by-step explanation:
7*13=91
91 is the first rectangles area.
13+6=19
19*17=323
323 is the second rectangles area.
25*23=575
575 is the third rectangles area.
575+323+91=989
PLEASE HELP FAST I WILL GIVE BRAINLIST AND EXTRA POINTS FOR YOU TO DRAW THE GRAPH
Answers
Answer:
literally straight on the x axis
What two expressions represent 3/12?
Answers
Answer:
A and C
3x1/12= 3/12
3x1/2= 3/12
62% of trees were saved from a fire. If this represents 1420 trees, how many trees were originally in the forest?Round to the nearest whole tree.
Answers
Answer:
2290 trees
Step-by-step explanation:
Given data
Let the total number of trees be x
62% of the total trees x is 1420 trees
mathematically
62/100x= 1420
0.62x= 1420
divide both sides by 0.62
x= 1420/0.62
x= 2290.32
To the nearest whole tree= 2290 trees
Faith wants to run at least 7 miles this week. She has already run 212 miles. She plans to run an equal distance on each of the last 3 days of this week.
Answers
Answer:
at least 71 miles each day
Step-by-step explanation:
212 divided by is 70.6
so u can round up to 71.
The required number of miles she will run is 2 miles each day or 1 mile each day.
What is simplification?The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
Faith wants to run at least 7 miles this week. She has already run 212 miles. She plans to run an equal distance on each of the last 3 days of this week.
So,
There are two ways,
1st. she must run for 1 mile each day of the week,
2nd she must run for 2 miles on the last three days of the week and 1 mile on any day of the 4 days of the week.
Thus, The required number of miles she will run is 2 miles each day.
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Solve this equation 53y - 55 = 42y
Answers
11y=55
Y=55/11 =5
–3y9 number of terms
Answers
Answer and Step-by-step explanation:
[tex]-3y^{9}[/tex]
This value above is ONE term. Even though it is made up of more values and stuff, it is all one term BECAUSE they are all connect, so the -3 is with the y by multiplication, and the 9 is with -3y as an exponent of y.
#teamtrees #PAW (Plant And Water)
Sara collected $135 in donations for the hospital. This represents 5% of the total amount collected by her class. How much did the class collect in all?
A.$6.75
B.$130
C.$140
D.$2700
Answers
Answer:
Step-by-step explanation:
A(5/100)=135
A=100(135)/5
A=$2700
Answer:
D
Step-by-step explanation:
5/100 = 135/x
Cross multiply
5 × x = 100 × 135
5x = 13500
Divide both sides by 5 to isolate the variable
x = 2700
$2700
Check work by plugging the x value into the equation
5/100 = 135/2700
Convert 5/100 so that it has the same denominator as the other fraction
5 × 27/100 × 27
135/2700
135/2700 = 135/2700
Do they equal?
Yes, so our answer is correct
Which property is demonstrated below?
(a+b)+c=(b+a)+c
A. Commutative property of addition
B.Associative property of addiction
C.Identity property of addition
D.Distributive property
Answers
Answer:
Associative property of addition
Answer:
B.Associative property of addiction
Step-by-step explanation:
y = (-3/2)x + 9 2x + 4y = 17 solve the system of equations
step by step
Answers
Answer:
x = 19/4 and y = 15/8
Step-by-step explanation:
Given:
y = (-3/2)x + 9
2x + 4y = 17
Move y to one side:
2x + 4y = 17
y = 17/4 - x/2
Solve for x:
(-3/2)x + 9 = 17/4 - x/2
x = 19/4
Substitute x to solve for y:
y = (-3/2)(19/4) + 9
y = 15/8
2(19/4) + 4y = 17
y = 15/8
In a certain Algebra 2 class of 27 students, 5 of them play basketball and 12 of them
play baseball. There are 2 students who play both sports. What is the probability that
a student chosen randomly from the class plays basketball or baseball?
Answers
2/27 = .074 move the decimal over 2 places = 7% chance
A town
has a population of 14000 and grows at 2.5% every year. What will be the
population after 5 years, to the nearest whole number?
Answers
Answer:
The answers is 15840
Step-by-step explanation:
\text{Exponential Functions:}
Exponential Functions:
y=ab^x
y=ab
x
a=\text{starting value = }14000
a=starting value = 14000
r=\text{rate = }2.5\% = 0.025
r=rate = 2.5%=0.025
\text{Exponential Growth:}
Exponential Growth:
b=1+r=1+0.025=1.025
b=1+r=1+0.025=1.025
\text{Write Exponential Function:}
Write Exponential Function:
y=14000(1.025)^x
y=14000(1.025)
x
Put it all together
\text{Plug in time for x:}
Plug in time for x:
y=14000(1.025)^{5}
y=14000(1.025)
5
y= 15839.71498
y=15839.71498
Evaluate
y\approx 15840
y≈15840
round
Which of the following choices shows the equation solved for y
7x + 2y = 10
1. y = -7/2x + 5
2. y = 7/2x +10
3. y = 7/2x + 5
4. y = -7x + 10
Answers
Answer:
#1; [tex]y = -\frac{7}{2}x+5[/tex]
Step-by-step explanation:
[tex]7x+2y=10[/tex]
[tex]2y = -7x + 10[/tex]
[tex]\frac{2y}{2} = -\frac{7x}{2} + \frac{10}{2}[/tex]
[tex]y = -\frac{7}{2}x + 5[/tex]
The temperature dropped 8 degrees between 6:00 P.M. and midnight. The temperature at midnight was 26 F. Write and solve an equation to find the temperature at 6:00 P.M.
Answers
Answer:
x = 34
Step-by-step explanation:
-8 = dropped 8 degrees
26 = 26 degrees at midnight
x = temperature at 6
x - 8 = 26
(add 8 to both sides) x = 34
A store manager earns $ 24.00 per hour. If the manager works 8 hours one day and donates 1 10 of the day's earnings to charity, how much of the earnings are left?
Answers
But if u donated 110 then it would be $82
what is the surface area of the figure?
Answers
Answer:
96
Step-by-step explanation:
first off you know that it is a square pyramid, so you can assume that all base lengths are 6.
i am going to find the base first. it is 36 because 6*6-36 save this in your mental memory
next, we have to find the 4 triangles
we know that they are 5 by 6 but you have to divide them by 2
so 30/2=15 and there are 4 of them
15*4=60
now add together 60 and 36 and you get 96
hope this helps!
I need help with this problem. Can someone please tell me what the answer is?
Answers
Answer:
the answer is D hope that help
Answer:
The answer is D
Step-by-step explanation:
Jaedon bought 3 toy cars for $11.70. How much would 10 cars cost?
Answers
Answer:
39
Step-by-step explanation:
11.70 divided by 3 is 3.9, and the unit rate. Multiply by 10 for the answer.
Solve the system by substitution.
y = 9x – 12
Y = 3x
Answer must be in (#,#) form.
will mark brainliest if correct
Answers
Answer:
(2, 6)
Step-by-step explanation:
if you meant for both of the y to be the same then this should be right
Answer:
(2,6)
Step-by-step explanation:
*this is actually elimination*
1st- Turn both of them into standard form.
y=9x-12 ---> 9x-y=12
y=3x --> 3x-y=0
--
Multiply 9x-y=12 by -1
-9x+y=-12
3x-y=0
-6x=-12
divide by 6
x=2
--
Plug 2 into the first equation
9(2)-y=12
18-y=12
Cancel out 18 by subtracting -18 to both sides
-y=-6
divide by -1
y= 6
Answer: (2,6)
what is the answer to 6−2(3x−5)=−8
Answers
Answer:
x = 4
Step-by-step explanation:
So first we distribute:
6-6x+10=-8
Combine like terms:
16-6x=-8
Now subtract 16 to -8:
-6x=-24
Divide -6 to both sides:
x=4
simplify ..... 12x^2 / 9x^2y show work please
Answers
Answer:
4/3y
Step-by-step explanation:
Given the expression 12x^2 / 9x^2y
12x^2 / 9x^2y
= (3*4)* x * x/(3*3)*x*x*y
= 4x^2/3x^2y
= 4/3y
hence the simplified form is 4/3y
Can someone please answer this for me
Answers
Answer:
3.5
Explanation:
Take any two points of the line and simply use the formula slop = y2-y1/x2-x1
Two points that I consider
(x1, y1) = (5,0)
(x2,y2) = (7,7)
Now using the above mentioned formula,
y2-y1/x2-x1 = 7-0/7-5 = 7/2= 3.5
Hence slop of line is 3.5
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