***I NEED HELP ASAP***
***Please show all the steps***
***I will mark brainliest***
Answers
Answer:
First on is 0.75
Second is 22/52 (not sure about this one though)
Step-by-step explanation:
For the first one:
P(aUb) = p(a) + p(b) - p(a^b)
0.6 = 0.4 + 0.5 - p(a^b)
p(a^b) = 0.3
P(a/b)= p(a^b)/p(a)
P(a/b)= 0.3/0.4
P(a/b)= 0.75
For the second one:
Total of the cards are 52
Diamonds are 13 out of that 52
Face cards are 12 out of that 52
Diamond OR face cards means p(aUb)
And that equals p(a)+p(b)-p(a^b)
p(a^b) means the intersection between the two, there are three common cards between diamonds and face cards, so p(a^b)=3
13/52 + 12/52 - 3/52= 22/52
Related Questions
Sara is a drummer in her school’s marching band. She wants to make a geometrically similar model of a snare drum for her stuffed animals. To find the dimensions she should use to make a cylinder model with a scale of 1:4, Sara measures the radius and height of a snare drum and multiples each dimensions by 1/2, which statement is true?
A. a cylinder with Sara’s dimensions will be geometrically similar, and scale factor will be 1:4
B. A cylinder with Sara’s dimensions will be geometrically similar, but the scale factor will be 1:2
C. a cylinder with Sara’s dimensions will be geometrically similar, but the scale factor will be 1:8
D. a cylinder with sara’s dimensions will not be geometrically similar
Answers
The ratio 1:4 would be the same as if it was written as 1/4.
Because she multiplied the dimensions by 1/2, that would be a ratio of 1:2
The answer is:
B. A cylinder with Sara’s dimensions will be geometrically similar, but the scale factor will be 1:2
Which is a statistical question?
1.)How many touchdowns did you score in yesterday's game?
2.)How many pens are inside each of my classmates' desks?
3.)How many balloons came in the package that you bought?
3.)How old was George Washington when he became president?
Answers
Answer:
2.
Step-by-step explanation:
You need to collect data from all students to get an answer .
The statistical question from the given options is:
"How many pens are inside each of my classmates' desks?"
What is Statistics?
Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
Thus, the statistical question from the given options is:
"How many pens are inside each of my classmates' desks?"
Learn more about Statistics from:
https://brainly.com/question/8058700
#SPJ5
please answer i'll give brainlist
A. 125 degrees
B. 145 degrees
C. 235 degrees
D. 215 degrees
Answers
Answer:
b
Step-by-step explanation:
AD is a straight line and AC is 90 so DC = 180-90 =90
The arc is the same as the angle, since they go through the center
We want EDC = ED +DC
= 55+90
=145
Answer:
B. 145 degrees
Step-by-step explanation:
Angle EDC = 55 + 90
= 145°
I need help guys . Anyone help me ?
Answers
Answer:
2:3
Step-by-step explanation:
15/25 are girls
10/25 are boys
10/25 to 15/25
2/5 : 3/5
2:3
Step 2: Radii OK and NL are perpendicular to OM because of the radius-tangent theorem. By definition of perpendicular, angles KOM and LNM are right angles. This means that triangles KOM and LNM are right triangles. Angle LMN is common to both right triangles, so by the _________________________, triangles KOM and LNM are similar. please fill in the blank
Answers
Answer:
AAA postulate.Step-by-step explanation:
Givens
Angles KOM and LNM are congruent, because both are right.Angle LNM is common to both triangles.If two internal angles of two triangles are congruent, then the third angle is also congruent.
Therefore, the similarity is proven by AAA postulate, which states that if we have three corresponding angles congruent, then those triangles are similar.
Remember that similarity is about proportion between sides and congruence between angles.
How do I find the area ?
Answers
Answer:
7.74 cm^2
Step-by-step explanation:
The length of the side of the square is 3+3 = 6
The area of the square is
A =s^2 = 6^2 = 36
The area of the circle is
A = pi r^2 where the radius is 3
(3.14) 3^2 =28.26
Subtract the area of the circle from the area of the square to get the shaded area
36-28.26 = 7.74 cm^2
* Approximate the value of V5 to the nearest hundredth.
Answers
Answer:
2.24
Step-by-step explanation:
If you mean sqrt(5), then the answer is 2.236, which rounds to 2.24
I'm going to assume you mean √5.
√5 is not a perfect square but it can evaluated into a non-terminating decimal.
√5 = 2.23606797...
Round to the nearest hundredth.
2.23606797... → 2.24
Therefore, the answer is 2.24
Best of Luck!
BC=
Round your answer to the nearest hundredth.
B
20°
?
A
4
с
Answers
Remember, SOH CAH TOA for the trigonometric functions. In this problem, we are given an angle, a side opposite that angle, and a side adjacent to that angle. So, we should use the tangent function to find the missing side.
tan(20) = 4 / x
tan(20)x = 4
x = 4 / tan(20)
x = 10.99 units
Hope this helps! :)
Answer:10.99
Step-by-step explanation:
number 19 very much need the answer please
Answers
Answer:
D not possible.........
what is between 1/6 and 2/6 on a number line
Answers
Answer:
3/12 or 1/4
Step-by-step explanation:
To find what is between, we have to use the formula:
x + y= z
z/2 = midpoint!
So, we can do that with this number.
1/6 + 2/6 = 3/6. We could simplify it, but let’s keep it at 3/6
3/6 divided by 2 = 3/6 · 1/2 = 3/12
So, the midpoint would be 3/12.
The scale drawing of a rectangular room measures 10cm long by 6cm wide. The actual width of the room is 9 metres. What is the actual perimeter of the room, in metres?
Answers
Answer:
48 meters
Step-by-step explanation:
The first thing is to calculate the scale, since we know both widths it is possible:
we pass the 9 meters to centimeters = 900 cm
900/6 = 150
So the scale would be 1: 150
Which means that the length is 150 times bigger.
10 * 150 = 1500cm or what equals 15m
the perimeter is the sum of all the sides, therefore:
P = 15 + 15 + 9 + 9
P = 48
Which means that the perimeter of the room is 48 meters
what is the solution for 1/2x + 8 < 10
Answers
1/2x+8<10
-8 -8
1/2x<2
*2 *2
x<4
Answer:
x<4
Answer:
x < 4
Step-by-step explanation:
Given inequation,
→ 1/2x + 8 < 10
Now the value of x will be,
→ 1/2x + 8 < 10
→ 1/2x < 10 - 8
→ x < 2 × 2
→ [ x < 4 ]
Hence, the value of x is 4.
You have $2000 to invest in an account and need to have $2500 in five years. What annual interest rate would you need to have in order to have this if the amount is compounded monthly?
a) 4%
b) 2%
c) 5%
d) 3%
Answers
Answer:
c) 5%
Step-by-step explanation:
A = $ 2,566.72
A = P + I where
P (principal) = $ 2,000.00
I (interest) = $ 566.72
find the area of a regular octagon with a radius of 20
Answers
1325.5
im not too sure, but i think that is the answer.
Answer:
Area = 2 x Sqrt (2) x r^2
Area = 2 x sqrt(2) x 20^2
Area = 2 x 1.414 x 400
Area = 1131.37
Step-by-step explanation:
How many leaves on a tree diagram are needed to represent all possible
combinations tossing a coin 5 times?
A. 36
B. 16
C. 32
D. 10
Answers
Answer: C 32
Step-by-step explanation:
Answer:
C 32
Step-by-step explanation:
what is the percent change between 6 to 3?
Answers
Answer:
50% = percent chang
Step-by-step explanation:
6 ÷ 50%
6 × .50 = 3
3 ÷ .50 = 6
Solve for x. 4x^2 - 48x + 144 = 0
Answers
(X-6) ^2 =0
X-6=0
Result: x=6
Pythagorean Theorem
Answers
Answer:
4320.43
Step-by-step explanation:
You need to figure out the Pythagorean Theorem and then use that answer to find the area. You will then get 4320.43.
Hope this helps.
Answer:
4320.43
Step-by-step explanation:
?????????????????????????????????????????????????????????????????????????????????????????????????????????yo pls help
Answers
Answer:
75 pieces
Step-by-step explanation:
Answer:
75
Step-by-step explanation:
You can use process of elimination, first, it's asking for pieces, not ounces, it's also must be larger than 45 since the other variable is increasing.
WILL GIVE BRAINLIEST PLEASE HELP!
Answers
Answer:
A. is 5. B. is 1.C. is 4.D. is 2.E. is 3.F. is 6.Step-by-step explanation:
Slope is rise over run.
For example, 2 is equivalent to 2/2 so you find the graph that has a point at (2, 2).
Hope this helps :D
What is the value of the expression below ? 2[32-(4-1)]
There is a 3 in between the ) 3 ] but it looks like square / cubes something
Answers
The value of the expression [tex]2[32-(4-1)][/tex] is [tex]58[/tex] by simplifying.
SimplificationSimplification is the process of replacing a mathematical expression with an equivalent one, that is simpler and usually shorter.
How to simplify an algebraic expression?Apply the BODMAS rule to simplify the algebraic expression.
Given that the expression is [tex]2[32-(4-1)][/tex]
First, simplify the bracket [tex](4-1)[/tex]
Then, [tex]2[32-(4-1)]=2[32-3][/tex]
Simplify the bracket [tex][32-3][/tex]
Then, [tex]2[32-3]=2[/tex] × [tex]29[/tex]
Multiply the numbers [tex]2[/tex] and [tex]29[/tex]
[tex]2[/tex] × [tex]29=58[/tex]
Hence, the expression [tex]2[32-(4-1)][/tex] is simplified to [tex]58[/tex].
Learn more about simplification here-https://brainly.com/question/17579585
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Which of the following are equations for the line shown below? Check all that apply . will give brainliest for correct answers
Answers
Answer: The answer is A AND B so give me brainliest
Step-by-step explanation:
how to simply this equation
Answers
Answer:
[tex]\sqrt[3]{2}[/tex]
Step-by-step explanation:
18
9 . 2
3 3
Matt measures 3 pieces of string. The first piece is 544 centimeters. The second piece is 144 centimeters, and the thrill piece is 112 centimeters. How many meters of string does he have altogether?
Answers
Add all the strings together.
544 + 144 + 112 = 800
Conversion: 100cm = 1m
Divide.
800 / 100 = 8
Therefore, Matt has 8 meters of string altogether.
Best of Luck!
Please help me now plz I will mark you brainliest
Answers
Answer:
On the circle
Step-by-step explanation:
Because all of the points on a circle are equidistant from the center, if a circle has a radius of 10 then all of the points are 10 units from the center. Using the Pythagorean Theorem, you know that the distance from (4,0) to (-2,8) is:
[tex]\sqrt{(4-(-2))^2+(8-0)^2}=\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10[/tex], meaning that it is on the circle. Hope this helps!
cha cha cha reallllllllllllll smooth what the answer?
Answers
Answer:
d=12
Step-by-step explanation:
7d-28=56
Add 28 to both sides
7d=84
Divide both sides by 7
d=12
Cha Cha Real Smooth indeed! :3
Answer:
d=12
Step-by-step explanation:
first step is to add 28 to both sides and get 7d=84
then divide 84 by 7
d=12
good luck :D
Simplify the complex fraction.
Alw
2 3/4 1 1/8
Answers
Answer:
= 99/32
Step-by-step explanation:
2 3/4 1 1/8
= 11/4 * 9/8
= 99/32
Can someone help me on this
Answers
Answer:
1. C) quadratic
2. b) exponential
Step-by-step explanation:
A block of wood has a mass of 6.0 g and a volume of 12.0 cm^3 . What is the density of the block of wood?
0.5 g/cm^3
2.0 g/cm^3
0.2 g/cm^3
2.5 g/cm^3
Answers
Answer: Density = 0.5 g/cm³
Explanation: Density is the ratio of mass per unit volume or D = m/V
D = m/V
= 6 g / 12 cm³
= 0.5 g / cm³
How many line segments are shown in the drawing
Answers
Answer:
i cant see the drawing :(
Step-by-step explanation:
i wish i could help tho
Answer: 1
Step-by-step explanation:
it is correct
