Answer:
y=3/4x
it passes through (-4,-3) on its own
Evaluate the expression when x=5 and y= -5
5x-4y=
Answer:
45
Step-by-step explanation:
5x-4y=
Let x=5 and y = -5
5*5 - 4 * (-5)
25 + 20
45
Male children. While it is often assumed that the probabilities of having a boy or a girl are the same, the actual probability of having a boy is slightly higher at 0.51. Suppose a couple plans to have 3 kids. A) Use the binomial model to calculate the probability that two of them will be boys. B) Write out all possible orderings of 3 children, 2 of whom are boys. Use these scenarios to calculate the same probability from part (a) but using the addition rule for disjoint outcomes. Confirm that your answers from parts (a) and (b) match. C) If we wanted to calculate the probability that a couple who plans to have 8 kids will have 3 boys, briefly describe why the approach from part (b) would be more tedious than the approach from part (a). 1) (32)0.512 ∗ 0.49 = 0.3822) BBG,BGB,GBB,GGB,GBG,BGG,GGG,BBBP(2boy) = BBG + GBB + BGBBBG + BGB + GBB + GGB + GBG + BGG + GGG + BBB = 3/8 = 0.375So since boy and girl has slight different probablity, two answer will be different but they are close3) Because using approach, you will have to list all 56 combinations
Answer:
Step-by-step explanation:
Since the actual probability of having a boy child is 0.51, the probability of having a girl child will be (1 - 0.51) = 0.49
A couple plans to have 3 kids; 2 of whom are boys
(A) Using the binomial model, the probability that 2 of the 3 children will be boys is (2/3) × 0.51 = 0.34
(B) The possible orderings of the 3 children are given below:
B1 B2 G / B1 G B2
B2 B1 G / B2 G B1
G B1 B2 / G B2 B1
Where B1 is one male child and B2 is the other male child
(C) If we wanted to calculate the probability that a couple who plans to have 8 kids will have 3 boys, briefly describe why the approach from part (b) would be more tedious than the approach from part (a)
If the probability of 2/3 is 0.34 then the probability of 3/8 will be 0.1912 when you cross multiply
The function h is defined as h (x) = 5x² – 3.
Find h(x+1).
Answer:
h(x + 1) = 5x² + 10x + 2
Step-by-step explanation:
Step 1: Write out function
h(x) = 5x² - 3
Step 2: Plug in x + 1 for x
h(x + 1) = 5(x + 1)² - 3
Step 3: Expand
h(x + 1) = 5(x² + 2x + 1) - 3
Step 4: Distribute
h(x + 1) = 5x² + 10x + 5 - 3
Step 5: Combine like terms
h(x + 1) = 5x² + 10x + 2
plsss help asap!!!!1
You roll two fair dice, one green and one red. (a) Are the outcomes on the dice independent? Yes No (b) Find P(1 on green die and 5 on red die). (Enter your answer as a fraction.) (c) Find P(5 on green die and 1 on red die). (Enter your answer as a fraction.) (d) Find P((1 on green die and 5 on red die) or (5 on green die and 1 on red die)). (Enter your answer as a fraction.)
Answer:
a
Yes
b
[tex]P(1 \& 5) = \frac{1}{36}[/tex]
c
[tex]P(5 \& 1) = \frac{1}{36}[/tex]
d
[tex]P(5 \& 1 | 1\& 5 ) = \frac{1}{18}[/tex]
Step-by-step explanation:
From the question we are told that
Two fair dice, one green and one red were rolled
Generally the outcomes on the dice independent because the outcome on the first dice is not affected by the second die
Generally the probability of getting a 1 on a dice rolled is [tex]P(1) = \frac{1}{6}[/tex]
the probability of getting a 5 on a dice rolled is [tex]P(5) = \frac{1}{6}[/tex]
Generally the probability of P(1 on green die and 5 on red die) is mathematically represented as
[tex]P(1 \& 5) = \frac{1}{6} *\frac{1}{6}[/tex]
[tex]P(1 \& 5) = \frac{1}{36}[/tex]
Generally the probability of P(5 on green die and 1 on red die) is mathematically represented as
[tex]P(5 \& 1) = \frac{1}{6} *\frac{1}{6}[/tex]
[tex]P(5 \& 1) = \frac{1}{36}[/tex]
Generally the probability of P((1 on green die and 5 on red die) or (5 on green die and 1 on red die)) is mathematically represented as
[tex]P(5 \& 1 | 1\& 5 ) = \frac{1}{36} + \frac{1}{36}[/tex]
[tex]P(5 \& 1 | 1\& 5 ) = \frac{1}{18}[/tex]
What is the solution to the equation
below?
-5/4 x+ 2/5= -13/30
Answer:
x = [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Given
- [tex]\frac{5}{4}[/tex] x + [tex]\frac{2}{5}[/tex] = - [tex]\frac{13}{30}[/tex]
Multiply through by 60 ( the lcm of 4, 5 and 30) to clear the fractions
- 75x + 24 = - 26 ( subtract 24 from both sides )
- 75x = - 50 ( divide both sides by - 75 )
x = [tex]\frac{-50}{-75}[/tex] = [tex]\frac{2}{3}[/tex]
Answer:
is it a times before the +?
Step-by-step explanation:
Which of the numbers below is greater than zero? Select all that apply.
A)0.8
B)4.5
C)1/4
D)-2.25
E)-0.5
Answer:
The answers are letters A,B,and C
The area of a rectangular wall of a barn is 260 square feet. Its length is 6 feet longer than twice its width. Find the length and width of the wall of the barn.
Answer:
l = 26, w = 10
Step-by-step explanation:
These types of word problems always want you to use variables to find the answer. Variables are always going to represent the numbers you don't know.
This question wants you to find the length and width of the wall of the barn, so let's just use l for length (let l = length of barn wall) and w for width (let w = width of barn wall); this is called defining your variables, so that you--or anyone who looks at your work--know what the letter variable represents.
Now we use the other information we have to find what values the variables actually equal.
We know that the length is 6 feet longer than twice the width. To express this in terms of numbers and variables: l = 6 + 2w. This makes sense, right?
length = 6 + (2 * width)
If the total area of the wall is 260 square feet and we need to find the length and width, we can use the A = lw formula, which you can use for any rectangle. Since 260 is the area (A), we can put that into the formula so that we have 260 = lw.
Next, use the expression we came up with earlier (l = 6 + 2w) to help find the answer.
We have two equations now (l = 6 + 2w and 260 = lw) and we just need to put them together.
This part is the same as solving any other linear equation.
The approach I'll use is substitution:
l = 6 + 2w
260 = lw
Substitute 6 + 2w in for l:
260 = (6 + 2w) w
Distribute:
260 = 6w + 2w²
Solve:
w² + 3w - 130 = 0
w = -13, w = 10
(The width of a rectangle cannot be negative, so it has to be 10 ft.)
We're almost there. The last thing to do is to find the length. Just plug in 10 for w in the l = 6 + 2w formula:
l = 6 + 2(10) = 6 + 20 = 26
To check your work, we can double the width and add 6 to get 26, and 26 * 10 is 260.
So, the length of the wall of the barn is 26 and the width of the wall of the barn is 10.
Ryan is remodeling his kitchen floor, which is 110 square feet. He used
31.5 tiles in his kitchen. If Ryan wants to remodel his bathroom, which is 28
square feet, approximately how many tiles would he need?
Answer:
He will need 9 tiles
Step-by-step explanation:
Step one:
let us highlight the given parameters
Given data
the size of the kitchen floor is 110 ft^2
the size of the bathroom is 28 ft^2
he used 32.5 tiles for the kitchen
and used x tiles for the bathroom
Step two:
if he used 32 tiles for 110 ft^2 kitchen
he will use x tiles for 28 ft^2 bathroom
cross multiplying we have
x= (32*28)/110
x= 896/110
x= 8.145
Approximately he will need 9 tiles
Which list shows all the factors of 18?
1, 2, 3, 4, 6, 9, 18
1, 2, 3, 6, 9, 18
2, 3, 4, 6,9
2, 3, 6, 9
[tex]:\implies\sf\:18=1\times 18[/tex]
[tex]:\implies\sf\:18=2\times 9[/tex]
[tex]:\implies\sf\:18=3\times 6[/tex]
Hence, All the factors of 18 are
[tex]\boxed{\bf{\orange{(1,2,3,6,9,18)}}}[/tex]
Answer:
1, 2, 3, 6, 9, 18 is the answer
Step-by-step explanation:
Which of the following shows as a mixed number and as an improper fraction?
There's no following. You need to post a picture or complete the question.
Solve A=1/2bh for h.
Answer:
h = 2A/b
Step-by-step explanation:
Step 1: Write out triangle formula
A = 1/2bh
Step 2: Multiply 2 on both sides to get rid of fraction
2A = bh
Step 3: Divide both sides by b to isolate h
2A/b = h
Step 4: Rearrange
h = 2A/b
Whitch of the following shows the correct order of the numbers
Answer:
The answer is B
Step-by-step explanation:
The World Malaria Report (2008) has information on the number of reported malaria cases from 2005 and 2006 for the 10 countries listed in West Africa. The data are presented in
Answer:
The question is incomeplete, below is the completed question
The World Malaria Report (2008) has information on the number of reported malaria cases from 2005–2006 for the ten countries listed in West Africa. The data are presented in the table below:
1. The mean reported West African malaria cases in 2005 is a. less than 116,698. b. greater than 1,600,000. c. 100,000. d. greater than 200,000.
2. The median reported malaria cases in 2006 is a. around 1,000,000. b. less than 200,000. c. 100,000. d. 3,000,000.
3. If the number of reported malaria cases in Sierra Leone were mistyped and reported as 1,160,666, what would happen to the mean and median? a. Both would remain unchanged. b. The mean would change, but the median would stay the same. c. The mean and median would change. d. You cannot tell without doing the actual calculation.
Answer:
The correct answers are:
1. greater than 200,000. (d)
2. around 1,000,000 (a)
3. The mean and median would change (c)
Step-by-step explanation:
using the data in the attachment to this answer:
1.)The mean is a measure of ecntral tendency, calculated by summing the total of the values and dividing the result by the number of terms. From the data in the 2005 column, only one value is 116,698 and that value is (116,681), the rest of the 9 other values are greater than 116,698 hence option a (less than 116,698) is wrong.
b)Same reason holds for option b (greater than 1,600,000), only one value falls in this category, hence the mean cannot be more than 1,600,000.
c) since the lowest data in the dataset is 116,698, the mean cannot be 100,000, which is less than the lowest data in the dataset
d) The mean is greater than 200,000 because 8 out of 10 (80%) of the values are more than 200,000, hence this is the correct answer.
2) for the median of the 2006 data, let us arrange the values in ascending order:
160,000 266,188 566,450 861,847 1,022,592 1,105,272 1,253,408 1,555,310 2,060,867 3,511,452
For distribution with an even number of terms, the median = (sum of the two middle terms) ÷ 2
Two middle terms are 1,022,592, 1,105,272
Median = (1,022,592 + 1,105,272) ÷ 2
Median = 2127864 ÷ 2
Median = 1, 063, 932
Therefore median is around 1, 000, 000 (a)
3) mistyping the value for Sierra Leone as 1,160,666 instead of 160,666 for 2006, will increase the value by 1,000,000. Both the mean and the median will change, because the value 1,000,000 is a large number compared to the others on the list to cause a change.
Math To Do, -Ready
Home Jefferson County School X
+
/student/dashboard/home
Which unit would you most likely use to measure the capacity of a mug?
Answer:
fluid ounces
hope it helps;)
The most likely unit to measure the capacity of a mug is fluid ounces (fl oz).
What is capacity?The maximum amount that something can contain or hold is referred to as its capacity. It is useful for determining the volume of a container, such as a mug or a bucket. Capacity measurement units vary, but common ones include millilitres, litres, fluid ounces, and gallons.
Capacity is a measurement of how much fluid or material a container can hold, and it is usually expressed in ounces, millilitres, litres, or gallons.
Because a mug is a container that holds liquids, the appropriate unit of measurement to use when determining how much liquid a mug can hold is capacity.
Thus, the answer is fluid ounces.
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5x−6=3x+10 PLSPLS HELP
Answer:
x = 8
Step-by-step explanation:
Let's solve your equation step-by-step.
5x−6=3x+10
Step 1: Subtract 3x from both sides.
5x−6−3x=3x+10−3x
2x−6=10
Step 2: Add 6 to both sides.
2x−6+6=10+6
2x=16
Step 3: Divide both sides by 2.
2x /2 = 16/ 2
x=8
Answer:
So x=8 is the answer.
Step-by-step explanation:
5x-6=3x+10
Adding 6 on both sides to find out the value of x
5x-6+6=3x+10+6
5x=3x+16
Subtracting 3x on both sides to find out the value of x
5x-3x=3x-3x+16
2x=16
Dividing 2on both sides
2x/2=16/2
x=8
I hope this will help you :)
Mrs. Robertson is taking a picture of three students-Zach, John, and
Reginald. How many different ways can these three students stand in a line
to have their pictures taken?
2. Which of these values is the GREATEST?
63/7
450%
8.99
-22
Let A = {Dirk, Johan, Frans, Sarie}, B = {Frans, Sarie, Tina, Klaas, Henrika}, C = {Hans, Frans}. Find the number indicated. n(A) + n(B)
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \bold{9}}}}}[/tex]
Step-by-step explanation:
Given,
A = { Dirk , Johan , Frans , Sarie }
B = { Frans , Sarie , Tina , Klass , Henrika }
To find : n ( A ) + n ( A )
Now, count the number of member of a set A
n ( A ) = 4
Also, Count the number of members of a set B
n ( B ) = 5
Finding n( A ) + n ( B )
= 4 + 5
= 9
Hope I helped!
Best regards! :D
I need help again, please.
I hope this helps you...
Rena decides to go to a technical college for 18 months to get a degree in computer networking. There are 6 school quarters in the program with a tuition of $600 each. Books for the entire program cost $2,800. How much will it cost Rena to get his degree?
Answer:
Total Cost 6400
Step-by-step explanation:
Each quarter is 600 dollars
There are 6 quarters. 6 * 600 = 3600
Books 2800
Total 6400
Answer:
6400
Step-by-step explanation:
600*6=3600
3600+2800=6400
Which expression is equivalent to-10w - 15.5? A. -5(2w-15.5) B. -5(2w+3.1) C. -5(5w-15.5) D. -5(5w+10.5).
Answer:
D
Step-by-step explanation:
The required expression that is equivalent to the given expression is -5(w+3.1) . Option D is correct.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
The given expression,
= -10w - 15.5
taking 5 commons from both the terms,
= -5(2w + 3.1)
Thus, the required expression that is equivalent to the given expression is -5(w+3.1) . Option D is correct.
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find the length of the hypotenuse !!
Answer:
17
Step-by-step explanation:
To find the hypotenuse, you would use the Pythagorean theorem.
[tex]A^{2} +B^{2} =C^{2}[/tex]
We can plug 8 and 15 into A and B\
[tex]8^{2} +15^{2} =C^{2}[/tex]
We can simplify this to
64+225=[tex]C^{2}[/tex]
289 = [tex]C^{2}[/tex]
To get C by itself not squared, we can do the square root of both sides.
[tex]\sqrt{289} =\sqrt{C^{2} }[/tex]
If we simplify, we get
17 = C or C = 17
Therefore the length of the hypotenuse is 17.
FIND A NUMBER WITH SIX FACTORS, ALL OF WHICH ARE ODD NUMBER
Answer: 99
Step-by-step explanation:
factor of 99: 1, 3, 9, 11, 33, 99
This is 6 factors, and they are all odd number
Hope this helps!! :)
Please let me know if you have any question
what's the steps used to solve modeling problems in the correct order
Answer:
see below
Step-by-step explanation:
The first step is to read the problem
Then you need to make a plan
Implement the plan
Then evaluate the answer to see if it makes sense
Solve the inequality for x. –2x + 3 < –13
Answer:
x > 8
Step-by-step explanation:
When you divide or multiply both sides of an inequality by a negative number, the equality is switched.
-2x + 3 < -13
(-2x + 3) - 3 < -13 - 3
-2x < -16
-2x/-2 < -16/-2
x > 8
Answer:
x > 8
Step-by-step explanation:
In order to solve the inequality for x, we must get x by itself on one side of the equation.
-2x + 3 < -13
3 is being added to -2x. The inverse of addition is subtraction. Subtract 3 from both sides of the equation.
-2x + (3-3) < (-13-3)
-2x < -13 -3
-2x < -16
x is being multiplied by -2. The inverse of multiplication is division. Divide both sides of the equation by -2.
-2x/-2 < -16/-2
When dividing or multiplying by a negative number, remember to flip the inequality sign.
-2x/-2 > -16/-2
x > -16/-2
x > 8
The solution to the inequality is x>8
25x + 11(2+2) when X = 6 a.234 b.83 c.194 d.150
Answer:
194
Step-by-step explanation:
A 20 pound mixture of salt water is 5% salt. How many pounds of water must be added to make it 3% salt?
Answer:
5 pounds
Step-by-step explanation:
(.15(20))/(20+w)=.12
3/(20+w)=.12
20+w=25
w=5
So 5 pounds of water must be added to the solution.
Order the numbers in each list from least to greatest.
0,|-14|, 13, -12, |-16|,17
Answer:
-12, 0, 13, [-14], [-16], 17
Step-by-step explanation:
Steve spent $40 at the grocery store. He bought bottled water, soda, and sandwiches. A bottle of water costs $1.50, a bottle of soda costs $2, and a sandwich costs $3. If he bought 10 bottles of water and 5 bottles of soda, how many sandwiches did he buy?
Answer:
5 sandwiches.
Step-by-step explanation:
$15 for the water, $10 for the soda. So if you add 15 and 10 that's 20. 40-25 = 15 on sandwiches. If each sandwich is $3, then that's 5 sandwiches.
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The number of sandwiches bought is 3.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Cost of a bottle = $1.50
Cost of a soda = $2
Cost of a sandwich = $3
Number of bottles bought = 10
Number of sodas bought = 5
Number of sandwiches bought = S
Total amount spend = $40
Now,
10 x 1.50 + 5 x 2 + 3S = 40
Simplify.
15 + 10 + 3S = 40
25 + 3S = 40
Subtract 25 on both sides.
3S = 40 - 25
3S = 15
Divide both sides by 3.
S = 15/3
S = 3
Thus,
The number of sandwiches bought is 3.
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