Answer:
x1 = -5 and x-2 = -1
Step-by-step explanation:
hope this helps
Answer:
x = - 1, - 5
Step-by-step explanation:
You randomly select 2 marbles from a mug containing 7 blue marbles, 3 red marbles, and 2 white marbles. How many times greater is the probability of selecting one blue marble and then one red marble when you do not replace the first marble before selecting the second marble than when you do replace the first marble before selecting the second marble? Express the answer as a fraction.
Answer:
Scenario 1: w/o replacement: P(blue, then red) = (7/12)(3/11) = 7/44
Scenario 2: w/ replacement: P(blue, then red) = (7/12)(3/12) = 7/48
Ratio of Probability #1 to Probability # 2 = 48/44 = 12/11, i.e. Prob # 1 is 1.0909... times Prob # 2
Step-by-step explanation:
Pablo bought chocolate bars that were divied into 8 equal pieces. If Pablo has eaten 20 pieces of chocolate, what is the fractionof chocolate bars he has eaten?
Answer:
Pablo has eaten 2 1/2 chocolate bars.
Step-by-step explanation:
We know that:
- Each bar was divided into 8 equal pieces
- Pablo ate 20 pieces
So, we can find the chocolate bars that he has eaten as follows:
[tex] f = \frac{1 \: bar}{8 \: pieces}*20 \: pieces = 2.5 \: bars = 2\frac{1}{2} \: bars [/tex]
Hence, Pablo has eaten two and a half of chocolate bars expressed as 2 1/2 as a mixed fraction.
I hope it helps you!
The surface area of a three-dimensional object is:
A. The total length of its edges incorrect answer
B. The area of one of its faces incorrect answer
C. The total area of its outer surface incorrect answer
D. The amount of space inside
Answer:
c
Step-by-step explanation:
The total surface area of a 3-dimensional object is the sum of the areas of the faces or surfaces of a 3 dimensional object
for example, the total surface area of a cube is the sum of the area of all the six faces
the total surface area of a cube = 6a²
where a = edge
if a = 6
total surface area
6(6²) = 216
What is the area in square centimeters of the trapezoid below
Answer:
area = 1/2(a+b)h
a= 8.2 cm
b= 22.9 cm.
h= 9.8
therefore area = 77.91 sqcm
The area in square centimeters of the trapezoid below is 77.91 .
How to find the area of a trapezoid?The area of a trapezoid is the half of the product of sum of its parallel sides to the height of that trapezoid (the distance between those parallel sides).
Thus, if we have Length of its parallel sides = 'a' and 'b' units respectively
Perpendicular distance between its parallel sides = 'h' units,
Area = 1/2(a+b)h
a= 8.2 cm
b= 22.9 cm.
h= 9.8
Area = 1/2(8.2 + 22.9)9.8
therefore, area = 77.91 sqcm
Learn more about the area;
https://brainly.com/question/1658516
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9/11÷5/6 divide the following . simply your answer
please help me
(9/11)÷(5/6)
= 9/11×6/5
= 54/55
Will mark brainlist if correct. SIN (C)=
Answer:
sinc C = 24/25
Step-by-step explanation:
sin is opposite side/hypotenuse
sinc C = 24/25
You need to memorize the definitions of all the trig functions and these types of problems will be really easy.
Answer:
24/25
Step-by-step explanation:
hope helpful have a great day
Question 1
5 pts
Samuel has 9 homework assignments due this week, and
he needs to finish 2 of them before his friend comes over
this afternoon. In how many orders can he pick out and
complete 2 of the assignments?
orders
Answer:
67
Step-by-step explanation:
Please help me hurry!! 7
Answer:
option 1
Step-by-step explanation:
Using the recursive formula and a₁ = 6 , then
a₂ = 3 + 2a₁²
= 3 + 2 × 6² = 3 + 2 × 36 = 3 + 72 = 75
Please help ASAP!!!! Which numbers are perfect squares? Check all that apply. A.20 B.40 C.64 D.4 E.49 F.48
Answer: 20 is not
40 is not
64 is
4 is
49 is
48 is not
Step-by-step explanation:
help asap!! which of the relationships below represents a function with a greater rate of change than the function y= 2x+3?
Answer:
D.
Step-by-step explanation:
Slope of that line is 5x
Write the equation for a radical function that has been flipped left and shifted down 1.
Answer:
[tex]g(x)=\sqrt{-x}-1[/tex]
Step-by-step explanation:
Let's use the parent function [tex]f(x)=\sqrt{x}[/tex] as an example
Because we are flipping the radical function left, this means [tex]f(x)=\sqrt{-x}[/tex]
Because we are shifting down 1 unit vertically, we have [tex]g(x)=\sqrt{-x}-1[/tex]
Therefore, the final function is [tex]g(x)=\sqrt{-x}-1[/tex]
Elise is investing 10,000 in an account that earns 2.25% simple interest. How many years will it take to have a balance of 12,700 in her account, if she does not add or withdraw from the account?
Answer:
12 years
Step-by-step explanation:
The formula to solve the above question i.e to find the time is given as:
Equation:
t = (1/r)(A/P - 1)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 2.25%/100 = 0.0225 per year,
then, solving our equation
t = (1/0.0225)((12700/10000) - 1) = 12
t = 12 years
Therefore, if she does not add or withdraw from the account, the time it
will take to have a balance of 12,700 in her account is 12 years
Find the length of the segment indicated. Round your answer to
the nearest tenth if necessary.
A) 7
B) 8
C) 4.2
D) 7.1
Answer:
The answer is B
Step-by-step explanation:
Look I would write step by step but i rally got to go!
A warren of rabbits has a population of 25. The population is increasing at a rate of 20% per year. How can you write an exponential growth function to find the monthly growth rate?
Answer:
f(x)= 25(1 + 0.20)^t
Step-by-step explanation:
The formula- f(x)= a(1+r)^x
a= initial amount (25)
r= growth rate (20%... 0.20)
x= # of times (we don't have that in here)
When you plug in the values, you get
f(x)= 25(1 + 0.20)[tex]{t}[/tex]
hope this helps!!
A number is 3 1/3 greater than another. If the sum of the numbers are doubled the answer would be 19 1/2
Answer:
smaller number = 3 5/24
larger number = 6 13/24
Step-by-step explanation:
let the larger number = x
smaller number = y
x - y = 3 1/3 equation 1
2(x +y) = 191/2 equation 2
divide equation 2 through by 2
x + y = 9 3/4 equation 3
subtract equation 1 from 3
2y = 6 5/12
y = 77/12 x 1/2 = 3 5/24
substitute for y in equation 1
x - 3 5/24 = 31/3
x = 3 1/3 + 3 5/24
x = 6 13/24
Answer:
3 and 5/24
Step-by-step explanation:
trust me bro
i wish u luck
also
hi
i just realized that the other person got it right
ignore this lol
The associative property is applicable to: *
I. Addition and subtraction
II. Multiplication and division
III. Addition and Multiplication
IV. Subtraction and Division
Answer:
III. Addition and Multiplication
if the height of a rectangle is 4.8m and the base is 8.4, what is the perimeter of the rectangle
Sara jumped 4 times , then she jumped again.how many times she jumped?
Answer:
4+x
Step-by-step explanation:
2/5•5/8
A-7/40
B-1/4
C-7/13
D-10/13
E-5/4
Answer:
b
Step-by-step explanation:
0.4 x 0.625=0.25
Answer:
the answer is B
Step-by-step explanation:
uhhhhhh it is simple mats
An object in the current of the Gulf Stream can move 11 miles in 2 hours. At this rate, about how many miles could the object in the Gulf Stream move in 5 hours?
Answer:
"27 and 1/2"
Step-by-step explanation:i got a 100% so im 100% sure this is right
An athlete eats 65 g of protein per day while training. How much protein will she eat during 15 days of training?
In how many different ways can seven children line up in one row to have their picture taken?
7
49
2,520
5,040
NO LINKS OR FILES, JUST THE CORRECT ANSWER AND I WILL GIVE BRAINLIEST
Answer:
5,040!
Step-by-step explanation:
I know you said it below, don't think im copying i'm just putting it here so other people can see it more easily!
Anyways have a lovely Day/night and goodluck on your studies!! <3
14
4(x + 6)
+
2(3x – 5) =
A) 4x + 14
B) 10x + 34
C) 10x + 14
D) 10x – 24
E) NOTA
Answer:
D) 10x - 24
Step-by-step explanation:
Bc I know maths a lot
Determine the distance from point A to line j.
A) 2 units
B) 3 units
C) 5 units
D) 10 units
Answer:
D 10 units hhhttttttttttggffcccfgg
Answer:
My other answer was deleted for some reason
Step-by-step explanation:
The slope of the line below is -3. Which of the following is the point-slope
form of the line?
10
- 10
10
(2.-6)
- 10
Pleas help and add explanation!
Step-by-step explanation:
I can't see the choices but it would be something like
y= -1/5x + ...
explanation: a perpendicular line would have a negative reciprocol slope.
can someone help it would be very helpful
Answer:
Use formula
area of trapezium=(a+b)/2×h
Step-by-step explanation:
1)
area of trapezium=(a+b)2×j
(8×4)/2×696in²as this u can calculate all of yr areas.
stay safe healthy and happy.2. Which equation could be used to find the length of line segment (NM)?
Hint: Use Sin when given the hypotenuse. Use Tan when given a leg.
21
N
20
A. (21) Tan (20°) = line segment (NM)
B.(21) Sin (20°) = line segment (NM)
Diagram isnt given. However, a picture illustribg the possible scenarios has been attached to help.
Answer:
KINDLY CHECK EXPLANATION
Step-by-step explanation:
Given the triangles A and B below :
Using trigonometric ratios :
If triangle A is given ;
Then ; MN will be obtained using the SIN relation :
Sin 20 = opposite (MN) / hypotenus (21)
If triangle B is given ;
Then ; MN will be obtained using the TAN relation :
Tan 20 = opposite (MN) / Adjacent (21)
Tanya distributes pencils to students in her class for an upcoming test. The number of pencils she hands out is given by the equation p = 3s, where p is the number of pencils and s is the number of students. If there are 16 students in Tanya's class, how many pencils did she distribute?
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5. (07.02 MC) What is the value of y in the equation 2(2y - 16) = 0? (5 points) O 4 06 8 O O
Answer:
8 mate.
Step-by-step explanation:
heavy metal is pretty brilliant.