Answers
Answer:
4.243
step by step explanation:
Related Questions
A recent survey shows that the probability of a college student drinking alcohol is 0.6. Further, given that the student is over 21 years old, the probability of drinking alcohol is 0.8. It is also known that 30% of the college students are over 21 years old. Of the students who are not over 21, what is the probability they drink alcohol? Group of answer choices
Answers
Answer: 0.5143
Step-by-step explanation:
Probability of students who are over 21 years old = 30% = 0.3
Probability of students who are under 21 years old = 100% - 30% = 70% = 0.7
Probability of drinking alcohol for over 21 = 80% = 0.8
Probability of not drinking alcohol for over 21 = 100%- 80% = 20% = 0.2
Let the probability of the students who are not over 21, that drink alcohol be p.
Total probability of a college student drinking alcohol = (0.3 × 0.8) + (0.7 × p)
0.6 = (0.3 × 0.8) + (0.7 × p)
0.6 = 0.24 + 0.7p
0.7p = 0.6 - 0.24
0.7p = 0.36
p = 0.36/0.7
p = 0.5143
The probability of the students who are not over 21, that drink alcohol is 0.5143.
Find the distance between the points E(3,7)and(6,5).find the exact distance between the two points ?
Answers
Step-by-step explanation:
Let the distance points E(3,7) and F(6,5)
Distance between EF = √[(x2-x1)²+(y2-y1)²]→Formula
Here, x1 = 3, y1 = 7
x2 = 6 , y2 = 5
Now,
Put all the values in distance formulae:
AB = √[(6-3)²+(5-7)²]
= √[(4)²+(2)²]
= √[(4*4)+(2*2)]
= √[16+4]
= √[20] = 2√5 Units.
Answer:- Hence, the distance between two points E(3,7) and F(6,5) is 2√5 Units.
Help me ASAP plssssssssss
Answers
Answer:
Community Parks
Step-by-step explanation:
Answer:
D
Step-by-step explanation: Because they are trying to reserve the parks and the animal life and plant life in it. Hope this helps :)
You dont have to do all of them, but if you do you will get brainliest and five star.
1. what are the corrospoding parts of these two traingles? Write the corresponding angles and corresponding sides. 2. Assuming these triangles are simular, use the labels to write the ratios of corresponding sides that are proportional 3. Assuming these triangles are simular, write three statements relating the angle that are congruent
Answers
Answer:
See below.
Step-by-step explanation:
1. Look at the marks on the angles of both triangles.
Angles C and F have a single mark (that looks like an arc). They are congruent.
Angles A and D have a double mark (that look like arcs). They are congruent.
Angles B and E have a triple mark (that look like arcs). They are congruent.
Each pair of congruent angles is a pair of corresponding angles.
Corresponding angles:
<C and <F
<A and <D
<B and <E
For corresponding sides, we do this.
First, we write a statement of similarity.
Triangle ABC is similar to triangle DEF.
The statement of similarity must have the corresponding angles in the same order.
The order ABC and the order DEF matches corresponding angles.
The corresponding sides have the vertices of corresponding angles as their endpoints.
Corresponding sides:
AB and DE
BC and EF
AC and DF
2. For similar triangles, the ratios of the lengths of corresponding sides are equal.
The ratios of the lengths of corresponding sides are equal:
AB/DE = BC/EF = AC/DF
3.
<A is congruent to <D
<B is congruent to <E
<C is congruent to <F
Quadrilateral EFGH is a scaled copy of quadrilateral ABCD. Select ALL of the true statements.
A. Segment EF is twice as long as segment AB, True or False
B. Segment CD is twice as long as segment FG. True or False
C. The measure of angle HEF is twice the measure of angle DAB. True or False
D. The length of segment EH is 16 units. True or False
E. The measure of angle BCD is the same as the measure of angle GFE. True or False
Answers
Answer: b,e
Step-by-step explanation:
what is 9 times 12 Answer divided by 12 times 8 answer thats it
Answers
Answer:
1.125
Step-by-step explanation:
Multiply first
(9*12)/(12*8)
108/96
then divide
1.125
Answer:
72
Step-by-step explanation:
9 × 12 = 108
108 ÷ 12 × 8 = 72
A university has 1,000 computers available for students to use. Each computer has a 250-gigabyte hard drive. The university wants to estimate the space occupied on the hard drives. A random sample of 100 computers showed a mean of 115 gigabytes used with a standard deviation of 20 gigabytes. What is the probability that a sample mean is between 111 and 119 gigabytes
Answers
Answer:
0.9545
Step-by-step explanation:
The formula for calculating a z-score is is z = (x-μ)/standard error,
where x is the raw score
μ is the population mean
Standard error = σ/√n
n = random number of samples
σ is the population standard deviation.
For x = 111
z = (x-μ)/standard error
= 111 - 115/20/√100
= -4 /20/10
= -4/2
= -2
Probalility value from Z-Table:
P(x≤ 111) = P(x = 111) = 0.02275
For x = 119
z = (x-μ)/standard error
= 119 - 115/20/√100
= 4 /20/10
= 4/2
= 2
Probability value from Z-Table:
P(x≤ 119) = P(x = 119) = 0.97725
The probability that a sample mean is between 111 and 119 gigabytes
P(-Z<x<Z)
= P(-2< x < 2)
= P(x = 119) - P(x = 111)
= 0.97725 - 0.02275
= 0.9545
Find the slope intercept form of the equation of the line through the points(2,-4) parallel to the line 8x+2y+2=0
Answers
Answer:
y = -4x + 4
Step-by-step explanation:
8x+2y+2=0
turn that into slope intercept form:
y = -4x - 1
a parallel line has the same slope, but different y-intercept
y = -4x + b
put (2,-4) into the equation
-4 = -4(2) + b
you get b=4
final product:
y = -4x + 4
helpppppppppp!!!!!!
1) If a recipe that uses 12 cups of flour to make 8 cakes needs to be scaled down to make 6 cakes, how much flour will the new yield require?
○6 cups
○9 cups
○10 cups
○11 cups
2) What is the benefit of formulas?
○They require less time to cook.
○They produce the same results every time.
○Most home cooks will become familiar with formulas.
○Formulas require fewer ingredients than most recipes.
3) If a restaurant needs 10 pounds of ground beef to make 50 servings of chili, how many pounds of ground beef are required to make 65 servings?
○13 pounds
○15 pounds
○18 pounds
○20 pounds
4) How much dough can a commercial freestanding mixer make at once?
○Up to 100 pounds
○Up to 175 pounds
○Up to 350 pounds
○Up to 500 pounds
5) A blender would be the best choice when making which of the following?
○A fruit pie
○A fish entrée
○Cookie dough
○A mustard sauce
6) If a batch of cake batter is cooked in one large pan instead of two round pans, how will this change the cooking time?
○There is no change in the cooking time.
○The larger pan will take longer to cook.
○The two smaller pans will take longer to cook.
○It won’t since the amount of batter is the same.
Answers
Answer:
1)9 cups
2) they produce the same results
3)13 pounds
4)100 pounds
5) a mustard sauce
6) the larger pan would take a longer to cook
please help with this as soon as possible
Answers
Answer:
98,000
Step-by-step explanation:
[tex]5^{4} *7^{5}* 2^{8}/16*125*7^{3}[/tex]
[tex]=5^{4} * 7^{5}* 2^{8} /2^{4} *5^{3} *7^{3}[/tex]
[tex]=5^{4-1} *7^{5-3} *2^{8-4}[/tex]
=[tex]5^{3} *7^{2} *2^{4}[/tex]
=[tex]125*49*16[/tex]
[tex]=98000[/tex]
Answer:
Step-by-step explanation:
Factorize all the numbers in numerator and denominator
16 = 2*2*2*2
125 = 5 *5 *5
[tex]\frac{a^{m}}{a^{n}}=a^{m-n}[/tex], where m >n
[tex]\frac{5^{4}*7^{5}*2^{8}}{16*125*7^{3}}=\frac{5^{4}*7^{5}*2^{8}}{2^{4}*5^{3}*7^{3}}\\\\\\=5^{(4-3)}*7^{(5-3)}*2^{(8-4)}\\\\\\=5^1*7^2*2^{4}[/tex]
need a answer for all of them
Answers
1. -20, -5, 10
2. -16, 0, 16, 32
3. -8, -6, -3
4. 0, 6, 18, 24
5. -12, 0, 16
Evaluate this function f(x)= -x2+6x+19 Find f(5)
Answers
Answer:
f(5) = -10+30+19 = 39
Step-by-step explanation:
f(5) = (-5)2+6(5)+19
-10+30+19
=39
Please help!!!!!!!!!!!
Answers
Answer:
with what?
Step-by-step explanation:
Answer:
Step-by-step explanation:
Vertical angles are always congruent or equal
first when vertical angles are both 90 degrees , then vertical angles are supplementary and vertical
What is the lcm of 12 and 3
Answers
Answer:
LCM of 12 and 3 is 12
Step-by-step explanation:
hope it helps you vhprince
1*12+3
12+3
15
Given f(x) = |X - 9|.The vertex of the function moves from (0,0) nine units where?
left
right
up
down
Answers
Answer:
RightStep-by-step explanation:
Given function
f(x) = |x - 9|Let's try point x = 0
f(0) = | 0 - 9 | = | -9 | = 9So the vertex moves right
See attached
I need the answer to the image
Answers
Answer:
∠B = 156°
Step-by-step explanation:
A line intersects two parallel lines this means that their opposite angles are transversals specifically the angles, A and B. And transversal angles are congruent so I can make this claim below:
[tex]∠A = ∠B \\ 8x +78 = 2x +144[/tex]
Solving for x:
[tex]8x +78 = 2x +144 \\ 8x -2x +78 = 2x -2x +144 \\ 6x +78 -78 = 144 -78 \\ 6x = 66 \\ \frac{6x}{6} = \frac{66}{6} \\ x = 11[/tex]
Solving Angle B if x = 11.
[tex]∠B = 2x +144 \\ ∠B = 2(11) +144 \\ ∠B = 22 +144 \\ ∠B = 166[/tex]
Someone plzzzzz help meee
Answers
Answer:
3 by 2 triangle
Step-by-step explanation:
9 x 1/3 = 3
6 x 1/3 = 2
then you connect the last line ;-;
Plz answer me will mark as brainliest and will be reported if wrong answer
Answers
Answer:
1,2,3,6,and 9
Step-by-step explanation:
18=1×18
=2×9
=3×6
=1,2,3,6and9
ezekiel has $250 in his bank account
Answers
4.25 + (-3/8) + 2 1/4 To being 2 wholes
Answers
Answer:
6.125
Step-by-step explanation:
4.25 + (-3/8) + 2 1/4 = 6.125
Help...giving 20 points
Answers
Answer:
A.) Cuberoot of 2
B.) (m-3)^ 1/2
C.) Cuberoot of 2² or simple Cuberoot of 4
D.) m^1/2 - 3
E.) Squaroot of 2
Step-by-step explanation:
An unbiased sample is one in which every member of the group has an equal chance of being chosen.
True
False
Answers
Place exactly three common mathematical operations between 1 2 3 4 5 6 7 8 9 to = 100. You can use the same operation up to three times, but are not allowed to re arrange the order of the digits
Answers
Answer:
- after 3 - after 5 and + after 7
Step-by-step explanation:
A student rolls a fair die 10 times and obtained an even number 10 times. The student believes that the next roll will
be an odd number because "odds are due."
Is this correct?
Yes, if the die is fair, then an odd number is due because the probability will approach 50%.
No, an even number is due based on past experience.
Yes, it is certain that an odd number will be rolled next because it is impossible to roll an even number 11 times in
a row.
No, an even or odd outcome is equally likely for each roll, regardless of what has happened in the past.
Answers
Answer:
N0, an even or odd outcome is equally likely for each roll regardless of what happened in the past
Step-by-step explanation:
Answer:
D. No, an even or odd outcome is equally likely for each roll, regardless of what has happened in the past.
Ms.rider travels 468 miles in 6 hours . how many miles per hour is she driving
Answers
Answer:
78
Step-by-step explanation:
She is driving 78 miles per hour because if you take the miles she drove, and the amount of time she drove, and divide them, you get 78 :)
1+1? i dont now what the answer is.
Answers
Answer:
its 2
Step-by-step explanation:
1. In part (b) of the example, why isn't AB a correct answer? 2. In part (c) of the example, would KJL be an appropriate answer?
Answers
Answer:
Step-by-step explanation:
1. AB isn't a correct answer because it only refers to the part of the line between point A and point B. This is incorrect because it doesn't represent the whole line which goes on infinity past point A (as seen by the arrow).
2. KJL would not be an appropriate answer because the points must be listed in the same order that they appear in direction of the line. The angle shown is angle K so K should be the middle letter as it is the middle point with the angle. KJL would not be appropriate because it would refer to the angle J if there was another line between J and L.
Hope this helped!
Identify the property being illustrated.
6x + 7 = 7 + 6x
Answers
Answer:
Commutative property of addition
Match the base to the corresponding height.
Answers
Answer: I need more information :)
Step-by-step explanation:
What is the area of the figure below
Answers
Answer:
22cm
Step-by-step explanation:
7+3=10
10+8=18
18+4=22