Answer:
7/36
Step-by-step explanation:
Complete
A bag contains 2 white marbles and 7 purple marbles. Two marbles are drawn at random. One marble is drawn and not replaced. Then a second marble is drawn. What is the probability of selecting a purple marble and then a white marble?
Total outcome = 2 + 7 = 9marbles
Pr(picking purple) = number of purple/total outcome
Pr(picking red) = 7/9
Since the first marble is not replaced, the total outcome becomes 8 marbles
Pr(picking white) = 2/8 = 1/4
Probability of selecting a purple marble and then a white marble = 7/9 * 1/4 = 7/36
A student measures the air pressure inside her bicycle tires before and after she goes on a long bicycle ride. What will she most likely observe?
Answer:
She will see that the pressure went up, not down!
Step-by-step explanation:
1. In a closed system, The volume inside the tire shouldn't change much (the losses will be small)
2. For a closed system, the Pressure inside a bicycle tire will increase with the increase of its Temperature
3. In a long bicycle ride, the constant friction of the tire to the ground will heat up the air inside the tire, thus increasing the pressure inside the tire
What is true about the net of a pyramid?
O It will always contain exactly 1 triangle.
O It will always contain exactly 2 triangles.
O It can contain any number of triangles greater than or equal to 3.
O It can contain any number of triangles greater than or equal to 4.
Answer:
THE LAST ONE IS THE CORRECT ANSWER BECAUSE ...................Step-by-step explanation:
A PYRAMID IS A FOUR DIMENSHION FIGURE IT MEANS IT HAS FOUR TRIANGLES : SO CORRECT ONE IS IT CONTAIN ANY NUMBER OF TRIANGLES OR GREATER THAN OR EQUAL TO FOUR.
Answer:
d
Step-by-step explanation:
PLEASE HELP ME ASAP I AM STRUGGLING SO MUCH MY WORK IS LITERALLY DUE NOW I'VE BEEN UP ALL NIGHT TRYING TO SOLVE IT AND MY ONLY SOLUTION IS TO ASK FOR HELP SO PLEASE HELP ME IF U CAN
(5a + 18) + (48 - a) + (8a - 30) = 180
5a + 18 + 48 - a + 8a - 30 = 180
5a - a + 8a + 18 + 48 - 30 = 180
12a + 36 = 180
12a = 180 - 36
12a = 144
a = 12
find the area of this figure
Answer:
164
Step-by-step explanation:
5×8×2=80
7×12=84
84+80=164
If a circle has an area of 144 sq. cm, what will be its area if the radius is reduced to one third?
Answer:
Step-by-step explanation:
1/3; 33.33 or 0.33
50 POINTS !!
PLEASE HELP
EXPLAIN HOW YOU GOT IT !!!!
ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Answer:
Step-by-step explanation:
Hope this helps u!!
A coffee cup keeps coffee at 175 degrees for 2 hours each quarter hour after that the coffee loses 15 degrees of warmth what will the temperature of the coffee be after 4 hours who ever actually helps get brainliest and random answers will be reported.
Answer:
I believe the answer is 55 degrees.
Plz don't report me if i'm wrong.
Step-by-step explanation:
Simplify.
21. (2x^4- 6x^3 + x^2 - 3x - 3) / (x - 3)
Answer:
https://www.tiger-algebra.com/drill/2x~4-6x~3-x~2_3x/
Carmen is painting a rectangular wall that is 9 feet long and 14 feet wide. What is the area that Carmen will paint?
o
A 23 square feet
B. 46 square feet
o
C. 63 square feet
D. 126 square feet
PLEASE HELP
Subtract 8−2x from 3−6x .
Answer in this format:
Answer:
[tex]4x + 5[/tex]
Step-by-step explanation:
[tex](8 - 2x) - (3 - 6x)[/tex]
[tex]8 - 2x - 1 \times 3 - (6x)[/tex]
[tex]8 - 2x - 3 + 6x[/tex]
[tex] - 2x + 5 + 6x[/tex]
[tex]4x + 5[/tex]
Hope it is helpful....nelda needs a wrench to fix her bike a 5/8 inch wrench was too big a 1/4 inch wrench what's the small which of the following would be bigger than 1/4 Inch wrench in smaller than the 5/8 inch wrench
Answer: 1/2
Step-by-step explanation:
A number is multiplied by 4, That result is added to 12. The final number is 40.
What is the original number.
A. 2
B. 7
C.13
D.22
Answer:
Step-by-step explanation:
Answer:
the answer is 7
HELP PLZZ TIMED TEST 5 MIN LEFT!
Step-by-step explanation:
answer: 135 degrees for the missing side
According to the National Association of Colleges and Employers, the mean salary for a new college graduate is $45,327. A small college wants to know if the mean salary of their most recent graduates is greater than $45,327. A random sample of 10 recent graduates from the small college was selected and the mean and standard deviation of the salary for those graduates was found. With all conditions for inference met, a significance test was conducted and a p-value of 0.045 was obtained. Which of the following statements is the most appropriate conclusion using a significance level of a = 0.05?
(A) There is convincing statistical evidence that the mean salary for all recent college graduates from the small college is greater than $45,327.
(B) There is convincing statistical evidence that the mean salary for the sample of 10 college graduates from the small college is greater than $45,327.
(C) There is not convincing statistical evidence that the mean salary for all recent college graduates from the small college is greater than $45,327
(D) There is not convincing statistical evidence that the mean salary for the sample of 10 college graduates from the small college is greater than $45,327.
(E) There is not convincing statistical evidence that the graduates from this college will always eam more than $45,327.
Answer:
(A) There is convincing statistical evidence that the mean salary for all recent college graduates from the small college is greater than $45,327.
Step-by-step explanation:
According to the National Association of Colleges and Employers, the mean salary for a new college graduate is $45,327. A small college wants to know if the mean salary of their most recent graduates is greater than $45,327.
At the null hypothesis, we test if the mean salary is the expected salary of $45,327, that is:
[tex]H_0: \mu = 45327[/tex]
At the alternate hypothesis, we test if the salary is greater than the expected salary of $45,327, that is:
[tex]H_1: \mu > 45327[/tex]
With all conditions for inference met, a significance test was conducted and a p-value of 0.045 was obtained. Which of the following statements is the most appropriate conclusion using a significance level of a = 0.05?
The p-value of the test if 0.045 < 0.05, which means that there is sufficient evidence to accept the alternate hypothesis, that is, to conclude that the mean salary for all recent college graduates from the small college is greater than $45,327.
This means that the correct answer is given by option A.
Find the equation that has a slope of -1/8 and passes through the point (0,-4)
A. Y= 1/8x
B. Y=1/4x-4
C. Y=-1/8x-4
Answer:
Option C
Step-by-step explanation:
Given :-
The slope of the line is -1/8The line passes through (0,-4) .And we need to find out the equation of the line .We are here given slope and a point . So we can use the slope point form of the line. As ,
[tex]:\sf\implies m ( x - x_1)= y - y_1 \\\\\sf:\implies \dfrac{-1}{8}(x -0)= y - (-4) \\\\\sf:\implies \dfrac{-x}{8}= y +4 \\\\\sf:\implies \boxed{ \sf\red{y = \dfrac{-x}{8}-4}}[/tex]
Hence the option C is correct.
HAVE A NICE DAY
WILL GIVE BRAINLST :)
Answer:
See below for answers and explanations
Step-by-step explanation:
Problem 1:
a²+b²=c²
4²+5²=c²
16+25=c²
41=c²
√41=c
c=√41
Problem 2:
a²+b²=c²
15²+b²=25²
225+b²=625
b²=400
b=20
Problem 3:
a²+b²=c²
a²+48²=60²
a²+2304=3600
a²=1296
a=36
Connie is designing a countertop for her kitchen, as shown below.
3 ft
4.5 ft
3 ft
Which measurement is closest to the area of the figure in square feet?
A 13.5 ft
B 18 ft
C 27 ft
D40.5 ft?
Answer:
c. 27
Step-by-step explanation:
Amanda is 10 years old. She wants to
start saving for college. She saves $450
this year and wants to double her money every year after. Write an equation to model this situation. How much money will she have when she is 18 years old?
Answer:
7200
Step-by-step explanation:
450 x 2 = 900
900 x 8 =7200
6 cm = ______ mm *
50 mm = ______ cm
100 mm=_______cm
20 mm = ______ cm
5kg = ______ g *
800g = _____kg *
6000mg = ______kg *
2lit = _____ml *
75ml = ____lit *
82km = ____m
Answer:
6 cm = __6*10=60____ mm *
50 mm = _[tex] \frac{50}{10} [/tex]__=5___ cm
100 mm=__[tex] \frac{100}{10} [/tex]=10____cm
20 mm = __[tex] \frac{20}{10} [/tex]_=2_____ cm
5kg = _5*1000=5000_____ g *
800g = ____[tex] \frac{800}{1000} [/tex]=0.8___kg
6000mg = ___[tex] \frac{6000}{1000000} [/tex]=0.006___kg *
2lit = _2*1000=2000_ml *
75ml = __[tex] \frac{75}{1000} [/tex]=0.075_lit *
82km = 82*1000=82000__m
In the number 16.73, which number is in the ones place?
Answer:
6
hope this helps
have a good day :)
Step-by-step explanation:
helpp please thanksss
Answer:
The function show the value of the machinery after "t" years.
So After "4" years... Input "t" as 4 to get its value
f(t) = 12,500 - 1,600(4)
=$6,100
OPTION C IS LEGIT!!!
find the equation of the straight line which has a gradient of 3 and passes through the point (-1, 3)
Answer:
y=3x+6
Step-by-step explanation: 3=3(-1)+b
3=-3+b
+3 +3
6=b
Pls help I’ll brainlest
▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Law of Exponents ⸔
→ aᵐ × aⁿ = aᵐ＋ⁿ
→ aᵐ ÷ aⁿ = aᵐ－ⁿ
→ (aᵐ)ⁿ = aᵐⁿ
→ aᵐ × bᵐ = (ab)ᵐ
→ a⁰= a¹
→ aᵐ/bᵐ = (a/b)ᵐ
Question's solution ⸔
→ 5⁰
→ 1 [a⁰ = 1]
▬▬▬▬▬▬▬▬▬▬▬▬▬▬
What is the volume of the rectangular prism?
Type the answer in the boxes below.
Answer:
15 cm^3
Step-by-step explanation:
I think it's 15 because if you count, there are 30 boxes. Each box has a volume of 1/2, so you are supposed to multiply, which means 1/2x30.
1/2x30=15
I hope it's right!
Volume is a three-dimensional scalar quantity. The volume of the rectangular prism is 3.75 cm³.
What is volume?A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.
The dimension of the rectangular prism in terms of small cubes is,
Length = 5 cubesWidth = 2 cubesHeight = 3 cubesTherefore, the number of cubes that made rectangular prism are,
Number of cubes = 5 × 2 × 3 = 30 cubes.
As the length of a side of the cube is 0.5 cm, therefore, the volume of a single cube is,
Volume of a single cube = a³ = (0.5cm)³ = 0.125cm³
Since the volume of each cube is 0.125cm³, therefore, the volume of the rectangular prism will be,
Volume of prism = 30 × 0.125 = 3.75 cm³
Hence, the volume of the rectangular prism is 3.75 cm³.
Learn more about Volume:
https://brainly.com/question/13338592
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The problem solving is on the image, 6th grade
An airplane ascended at a rate of
2,000 feet per minute. What is the
altitude of the plane after 15 minutes
Answer:
the altitude of the plane is 30,000 after 15 minutes
Step-by-step explanation:
since the plane goes up 2,000 ft per minute I multiplied 2,000 by 15(the minutes) and got 30,000
Can anyone help ?
Kim rolls a dice and flips a coin.
a) Calculate the probability that she
gets a 2 and a head.
b) Work out the probability that she
gets an even number and a tail.
What would b be
Answer:
a) 1 / 12
b) 1 / 4
Step-by-step explanation:
The events are independent since they do not affect each other. The total probability of two independent events is the product of the probabilities of the two events.
a) When rolling a die, there are 6 outcomes, the numbers 1 - 6. There is only 1 outcome where you can get a 2. Therefore, the probability of rolling a two is 1/6.
When flipping a coin, there are two ways it can land: heads or tails. And there is one outcome with heads. The probability of getting head would be 1 / 2.
To find the the total, you multiply the probabilities of the two events: 1 / 6 * 1 / 2 = 1 / 12
b) As stated before, when rolling a die, there are 6 outcomes, the numbers 1 - 6. There are 3 outcomes where she can roll an even number: the numbers 2, 4, or 6. So, the probability of rolling an even number is 3 / 6 or 1 / 2.
When flipping a coin, there are two ways it can land: heads or tails. And there is one outcome with tails. The probability of getting tails would be 1 / 2.
Now, you multiply the two probabilities to get the total probability: 1 / 2 * 1 / 2 = 1 / 4
Kim got a "40" in a class and I make a 70 on a test. How much does the grade goes up?
Answer:
30%
Step-by-step explanation:
Where do the parabola defined by y=-x^2+4x+1 and the line defined by y=-x+5 intersect?
The perimeter of a rectangular field is 332 yards. If the length of the field is 92 yd what is the width?
Answer:
The width of the rectangular field is equal to 74 yards.
General Formulas and Concepts:
Algebra I
Equality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityTerms/Coefficients
Geometry
Perimeter Formula [Rectangle]:
[tex]\displaystyle P = 2l + 2w[/tex]
Step-by-step explanation:
Step 1: Define
Identify given variables.
P = 332 yds
l = 92 yds
Step 2: Find Width
[Perimeter Formula - Rectangle] Substitute in variables:∴ the width of the field is equal to 74 yards.
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Learn more about Geometry: https://brainly.com/question/27795993
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Topic: Geometry