Answer:
[tex]P(C\ or\ D) = 1[/tex]
Step-by-step explanation:
Given
[tex]P(C) = \frac{3}{7}[/tex]
[tex]P(D) = \frac{4}{7}[/tex]
Required
[tex]P(C\ or\ D)[/tex]
Since the events are mutually exclusive, then:
[tex]P(C\ or\ D) = P(C) + P(D)[/tex]
So, we have:
[tex]P(C\ or\ D) = \frac{3}{7} + \frac{4}{7}[/tex]
Take LCM
[tex]P(C\ or\ D) = \frac{3+4}{7}[/tex]
[tex]P(C\ or\ D) = \frac{7}{7}[/tex]
[tex]P(C\ or\ D) = 1[/tex]
each group of students receives a bag that has 4 red cubes, 9 green cubes and 7 blue cubes if if each group makes 200 pulls and replaces the cube after each pull, how many times would you expect them to draw a green cube?
Must write and solve using a system of linear equation.
* 10. You have 39 math and science problems for homework. You
have 15 more math problems than science problems. Use the
model to write a system of linear equations. How many problems
do you have in each subject?
Answer:
Science problems= 12
Math problems= 27
Step-by-step explanation:
If
x= math problems for solving
y= science problems for solving
x+y=39
y=x-15
Using substitution method:
x+(x-15)=39
2x-15=39
2x=39+15
x=(39+15)/2
x=27
Having "x" lets find out "y" value.
x+y=39
27+y=39
y=39-27
y=12
RS= 4y+2, ST = 3y+8, and RT = 38 what is the value of y
Answer:
y = 4
Step-by-step explanation:
Given that,
RS= 4y+2, ST = 3y+8, and RT = 38
We need to find the value of y.
As,
RT = RS+ST
Put all the values,
38 = 4y+2+3y+8
38-2-8 = 4y+3y
28 = 7y
y = 4
So, the value of y is equal to 4.
Please help.. You can answer one if you want but whoever answers both get brainliest
Answer:
l
Step-by-step explanation:
l
Find the lateral area of this cone.
Leave your answer in terms of a.
12cm
5cm
LA = [ ?]
Please help
Look at picture
Answer:
1/3
Step-by-step explanation:
Find the solution set for this inequality:
-4(3x - 5) < 2(3x + 4)
A. x > -(1)/2
B. x < -(1)/2
C. x > 2/3
D. x < 2/3
PLS ANSWER ASAP!! WILL MARK AS BRAINLYIST!!!!
time left (3:23)!!
30 points and Brainliest!
Given: ΔLFP, LF = FP LK ⊥ FP , PD ⊥ LF Prove: LK = PD
Please provide proof and the rule (AAA, ASA, etc.) as well.
Answer:
LF = PF given
ΔLFP is isosceles definition of isosceles triangle
∠FLP = ∠FPL isosceles triangle theorem: if two sides of a triangle are
congruent, then angles opposite those sides are
congruent.
LP = PL reflexive property
∠PDL = ∠LKP Perpendicular lines postulate (perpendicular lines form 90
degree angles)
ΔPDL ≅ ΔLKP AAS
LK = PD corresponding parts of congruent triangles are congruent
Find the range of the data.
67, 63, 72, 62, 64, 81, 74, 66
The range is
WILL GET BRAINLEST
Answer: Range is 19
HOPE THIS HELP!
Solve for f(-7)
f(x)=5-x
f(-7)= ?
Answer:
7 f + 5 ??
Step-by-step explanation:
helppppppppppppppppppppppppppppppppppppppppppp
Answer:
A
Step-by-step explanation:
Pi r^2 is the equation to solve any circle. R=5 in this case, so A is your answer.
Rebecca picked a bunch of flowers from her garden. She gave 19 flowers to her mother. If she now has 34 flowers, how many flowers did she pick?
Of three consecutive odd integers, k is the middle one. If the difference between
the products of the last two and first two is 28, find the three integers.
Please help meeeeeeeeeeeeeeeee please
9514 1404 393
Answer:
2.1 ft³
Step-by-step explanation:
Put the given radius and height into the volume formula and do the arithmetic.
V = 1/3πr²h
V = 1/3(3.14159)(1 ft)²(2 ft) ≈ 2.094 ft³
Rounded to tenths, this is 2.1 cubic feet.
__
The picture cuts off your rounding requirements. If it is hundredths, you need to use 2.09 ft³. If it is thousandths, your answer will depend on the value of pi you are asked to use.
If the discount is 27%, then what percentage of the original price do you pay? Please give an explanation as well if you can! Thank you in advance.
Whoever answers correctly will get Brainliest. Stay happy and have a blessed rest of your day. :)
I need the answer ASAP
Answer:
[tex]y=-\frac{1}{5} x-1[/tex]
Step-by-step explanation:
Hi! Welcome to brainly!
So slope intercept form - y = mx + b
where m = slope and b = y intercept
First lets find the y intercept
The y intercept is at (0,-1)
B would equal the y value of the y intercept so b = -1
now lets find the slope
To do so we can pick 2 points on the line and use the slope formula
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
the points can vary but i chose the points (5,-2) and (10,-3)
having found the points we plug them into the formula
[tex]m = \frac{-3-(-2)}{10-5} \\-3-(-2)=-1\\10-5=5\\m=-\frac{1}{5}[/tex]
now that we have found all of the information we plug the values into the equation and get that the answer is
[tex]y=-\frac{1}{5} x-1[/tex]
Find the percent of change from 32 feet to 79 feet. Round to the nearest tenth, if necessary. Then state whether the percent of change is percent of increase or percent of decrease.
Answer:
71 1/4%
Step-by-step explanation:
I think the change is percentage increase. the method of finding percentage iincrease is increase over percentage increase x 100%
What balance will be in an account that has an initial deposit of $4600 with an APR of 1.8%? The money is compounded quarterly for 30 years.
help
Answer: i cunfused sorry just relly need the points i have zero sorry hope you find an awser good luck
Step-by-step explanation:
Determine the value of x so that the numbers a1 = In(x + 2). a2 = In(x + 3).
a3 = In(4x + 8) form three consecutive members of an arithmetic sequence.
Select one:
a. Such x does not exist.
b. x = -+1
c. There are two possible solutions.
d. x = -1
e. None of the remaining possibilities is correct.
Answer:
Step-by-step explanation:
hello :
the numbers a1 , a2 ,a3
form three consecutive members of an arithmetic sequence means : 2a2 = a1+,a3
2 In(x + 3) = In(x + 2)+In(4x + 8)....(*)
now solve this equation use this note :
ln a^n = alna and : lna+lnb =lnab lna =lnb means : a=b ...a , b positif numbers
(*) equivaut : In(x + 3)² = In(x + 2)(4x + 8) and : x + 2 ,x + 3 , 4x + 8
are positifs numbers
(x + 3)² = (x + 2)(4x + 8)
x²+6x+9 = 4x²+16x+16
3x²+10x+7 =0
delta =10²-4(3)(7) 100 -84 = 4²
x1 = (-10-4)/6 = -7/3 reused
x 2 = (-10+4)/6 = -1 reused
conclusion : a. Such x does not exist.
Which two integers is -√21 between?
Answer:
-5 and -4
Step-by-step explanation:
-√21 = -4.58
PLEASE HELP PLEASE! I AM SO STUCK!
f(x) = |7m + 4| = 1
First equation by taking positive modules
7m + 4 = 1
7m = -3
m = -3/7 . Ans.
Second equation by taking negative modules
-7m - 4 = 1
-7m = 5
m = -5/7 . Ans.
∴ m = [ -5/7 U -3/7 ] Ans .
what is 7÷10 in faction form and improper fraction form
Answer:
a) 7/10
b) There is no improper fraction form for this
Can you guys help me with this?
Answer:
The leghts of AB is 9 because both of the triangles are symmetrical. But also, this is a Equilateral triangle, which means that both of the sides are the same lengths (AB=AC)
At his birthday party, Aiden collected 15% of the candy that fell out of the pinata. If Aiden collected 6 pieces of candy, how many pieces of candy fell out of the pinata?
pls help its today
Answer:
40 pieces
Step-by-step explanation:
To make it easier I divided each number (15, 6) by 3 and then multiplied by 2.
10% of candy = 4 pieces
Multiply by 10
100% of candy = 40 pieces
Factor 7/10 out of 7/10z+21.
7/10z+21=
Answer:
1/100 (1471 z + 2100)
0.01 (1471 z + 2100) the result I got
and the Factorization over the splitting field:
14.71 z + 21
Mrs. Johnson works as a Librarian and makes $46,320 per year. Mr. Rivera makes $75,490 per year working as an Actuary. Which statement below accurately describes the difference in their salaries over time?
A B Mrs. Johnson will make $125,760 less than Mr. Rivera over a 5-year period.
B Mrs. Johnson will make $194,800 less than Mr. Rivera over a 10-year period.
C Over a 15 year period Mr. Rivera will make $377,450 more than Mrs. Johnson. C
D Over a 15 year period Mr. Rivera will make $437,550 more than Mrs. Johnson.
Answer:
ima say B
Step-by-step explanation:
I’m not 100% sure so I could be wrong
Find the angle between the two vectors to the nearest tenth of a degree u= (6 4) v= (7 5)
Answer:
Answer: 1.8
Step-by-step explanation:
pls help me understand this pls show how u got it
Answer:
25 inches
Step-by-step explanation:
Area is given as 75 in^2
Area of a triangle = 1/2 * base * height
75 = 1/2 (6) * height
75 / (1/2 * 6) = height
25 inches = height
asap
Five students, Jeremiah, Claire, Alyssa, Brody, and Hudson, line up one behind the
other. How many different ways can they stand in line?
Answer:
25 dfferent ways
Step-by-step explanation:
The answer is 25 different ways because since there are students and thy line up behind each other you would do 5 times 5 which equals to 25.
honest to god im just sad today can someons do this
Answer: Its answer A
Hope you feel soon better friend.