Answer:
Thank you
(Inspiration for the day)
A surgery has a success rate of 75%. Suppose that the surgery is performed on 4 patients. What is the probability that the surgery is successful on exactly 3 patients?
0.21094 is the probability that the surgery is successful on exactly 3 patients.
What is probability?
It is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.
According to the given question,
Let Y = The number of patients who respond yes: \(Y - Bin (n,p)\)
Given , \(n = 4 , p = 0.75 , q = 1 - p = 0.25\)
\(P (Y = 3) = \left(\begin{array}{ccc}4\\3\\\end{array}\right) (0.75)^{2}(0.25)^{4-3} \\ = 0.21094\\\\\)
The probability that the surgery is successful on exactly 3 patients is 0.21094
Learn more about Probability here:
https://brainly.com/question/23345093
#SPJ1
-3[7+ 5)
What is the value of
Answer:
-36
Step-by-step explanation:
Step-by-step-explanation
The first thing you would do is multiply both numbers inside the parenthesis by -3.
You would get -21 + (-15) or you could just wrtie -21 - 15, whichever is easier for you.
Then you'd simply add both -21 and -15 together, and you get -36. :D
Graph the system of inequalities. Then use your graph to identify the point that
represents a solution to the system.
x + y2 3
x-3y< 2
(6, 1)
(8,-1)
(6,2)
O (6,-2)
The coordinates in the solution to the systems of inequalities graphically is (6, 2)
Solving the systems of inequalities graphicallyFrom the question, we have the following parameters that can be used in our computation:
x + y > 3
x - 3y < 2
Next, we plot the graph of the system of the inequalities
See attachment for the graph
From the graph, we have solution to the system to be the shaded region
The coordinates in the solution to the systems of inequalities graphically is (6, 2)
Read more about inequalities at
brainly.com/question/30977554
#SPJ1
It is known that the events A and B are mutually exclusive and that P(A)=0.59 and P(B)= 0.13. Find P(A and B)
Recall that Two events A and B are mutually exclusive if they cannot happen at the same time.
Hence, the probability that both of them will occur at the same time is zero. That is,
\(P(A\; \text{and}\; B)=0\)The required probabilty is 0.
About 13,800 adult Pacific newts made their annual migration between November 2020 and March 2021. Roughly 2/5 didn't survive the trip. About how many newts survived crossing the road?
If 13800 adult Pacific newts made their annual migration between November 2020 and March 2021, Roughly 2/5 didn't survive the trip, then the number of newts survived crossing the road is 8280 newts
The number of adult Pacific newts made their annual migration = 13800
Roughly 2/5 didn't survive the trip
Then the number of newts didn't survive = 13800×(2/5)
= 13800×0.4
= 5520 newts
To find the number of newts survived, we have to use subtraction
The number of newts survived crossing the road = 13800-5520
= 8280 newts
Hence, If 13800 adult Pacific newts made their annual migration between November 2020 and March 2021, Roughly 2/5 didn't survive the trip, then the number of newts survived crossing the road is 8280 newts
Learn more about subtraction here
brainly.com/question/2346316
#SPJ1
Cannot seem to figure this one out.
Answer:
cosB = 2√6 / 7
Step-by-step explanation:
use the pythagorean theorem to find the missing side
a² + b² = c²
a² + 5² = 7²
a² + 25 = 49
a² = 24
a = √24
a = 2√6
--------------------------
cosB = adj/hyp
cosB = 2√6 / 7
find all missing angles
Answer:
m<1 = 25°
180 - 104 = 76
76 + 79 = 155
180 - 155 = 25
I NEED ANSWERS ASAP WILL MARK BRAINLIEST
If you make $26,000 per year, what is your weekly rate?
O $50
O $500
O $5,000
O $50,000
Answer: $500
Explanation:
There are about 52 weeks in a year.
If you work the full year, without any time off, then your weekly pay is (26,000)/(52) = 500
HELP QUESTION IS IN THE PHOTO ILL GIVE YOU EXTRA POINTS
Someone please help (show work)
Answer:
See answers below :)
Step-by-step explanation:
-2(2 - 5) + 10 + (-5) =
-2(-3) + 10 - 5 =
6 + 10 - 5 =
11
8 - 2(9 - 5)^2 - 1 =
8 - 2(4)^2 - 1 =
8 - 2(16) - 1 =
8 - 32 - 1 =
-25
need help
Determine when a simple 2x2 system of linear equations has no solutions.
If m = -5 or m = 3, the system of linear equations has no solution.
To determine the values of m for which the system of linear equations has no solution, we need to check the determinant of the coefficient matrix, which is:
| 3 m |
| m+2 5 |
The determinant is
= (3 x 5) - (m x (m+2))
= 15 - m^2 - 2m
= -(m^2 + 2m - 15)
= -(m+5)(m-3)
So, for the system to have no solution, the determinant must be zero, so we have:
-(m+5)(m-3) = 0
This gives us two values of m: m = -5 and m = 3.
Thus, if m = -5 or m = 3, the system of linear equations has no solution.
Learn more about Matrix here:
https://brainly.com/question/29132693
#SPJ1
On a map, 1 inch equals 25 miles. Two cities are 3 inches apart on the map. What is the actual distance between the cities?
Answer:
75 Miles apart
Step-by-step explanation:
I = inches on a map
I=25
3I=75
75 miles apart
Determine the equation of the circle shown in the graph.
Answer:
B.
Step-by-step explanation:
The equation of a circle with center at (h, k) and radius r is
\( (x - h)^2 + (y - k)^2 = r^2 \)
We have center at (-5, 0). That makes h = -5, and k = 0.
The radius is 3, so r = 3.
\( (x - (-5))^2 + (y - 0)^2 = 3^2 \)
\( (x + 5)^2 + y^2 = 9 \)
Answer: B.
Answer:
B
Step-by-step explanation:
The equation of a circle has the form:
\((x-h)^2+(y-k)^2=r^2\)
Where (h, k) is the center of the circle and r is the radius.
From the graph, we can see that the center of the circle is at (-5, 0). So, (h, k) is (-5, 0), where h = -5 and k = 0.
And by counting, we can determine that the radius of the circle is three units. Hence, r = 3.
Substitute the information into the equation:
\((x-(-5))^2+(y-(0))^2=(3)^2\)
Simplify. Therefore, our equation is:
\((x+5)^2+y^2=9\)
Our answer is B.
HELP HELP HELP
Write the inequality in interval notation and graph.
The inequality in interval notation is [ -1, ∞ ) from the given equation x ≥ - 3
What is interval notation ?Continuous sets of real numbers can be represented using interval notation by the numbers that bound them. When written, intervals resemble ordered pairs in several ways. They do not, however, intend to indicate any particular location. Instead, they serve as a concise approach to express an inequality or a set of inequalities.A set of real numbers known as an interval in mathematics contains all real numbers falling inside any two of the set's numbers. For instance, the interval containing 0, 1, and all integers in between is the set of values x satisfying 0 x 1.a collection of all real numbers. The interval notation (,) can be used to denote a function's domain as only real values.Given data :
x ≥ - 3
x is greater than or equal to - 3, so - 3 is our smallest value of the interval so it goes on the left. Since there is no upper endpoint (it is ALL values greater than or equal to 3),
we put the infinity symbol on the right side. The boxed end on 3 indicates a closed interval.
In interval notation it is [ -1, ∞ )
Learn more about Interval notation refer to ;
https://brainly.com/question/26025356
#SPJ1
Last month Maria hiked a total of 90 miles on two trails: a 5-mile mountain trail and a 10-mile canal trail. Let x
represent the number of times Maria hiked the mountain trail, and let y represent the number of times Maria hiked
the canal trail.
Which equation can be used to find
the number of times Maria hiked each trail?
O x + y = 90
O 5x - 10y = 90
90 - 10y = 5x
90 + 10y = 5x
Answer:
Step-by-step explanation:
answer is;3.14159
solve v = 1/3 bh for b the base of the cone
Answer:
\(b = \frac{3v}{h} \)Step-by-step explanation:
\(v = \frac{1}{3} bh\)First of all multiply through by 3
That's
\(3v = \frac{1}{3} \times bh\)We have
\(3v = bh\)Divide both sides by h to make b stand alone
That's
\( \frac{bh}{h} = \frac{3v}{h} \)We have the final answer as
\(b = \frac{3v}{h} \)Hope this helps you
Which of the following sets of numbers could represent the three sides of a triangle?
{12,16,29}
{14,21,36}
{14,28,39}
{8,14,24}
Answer:
{14,28,39}
Step-by-step explanation:
By the Triangle Inequality Theorem, if given side lengths \(a\), \(b\), and \(c\), where \(c\) is the longest side of the triangle, then \(a+b\geq c\) holds true.
For the first set of numbers, \(12+16\ngeq29\), so it doesn't represent the three sides of a triangle
For the second set of numbers, \(14+21\ngeq36\), so it doesn't represent the three sides of a triangle
For the third set of numbers, \(14+28\geq39\), so it does represent the three sides of a triangle
For the fourth set of numbers, \(8+14\ngeq24\), so it doesn't represent the three sides of a triangle
Kim, Mary and Erin made a total of 24 dozen cookies. Mary made twice as many cookes as Erin and Kim made 2 more dozen cookies than Erin. How many cookies did Erin make
Answer:
Erin made 5.5 dozen cookies.
Step-by-step explanation:
Total cookies made by Kim, Mary and Erin = 24 dozen cookies
Let Erin make cookies = x dozens
Mary made cookies = 2x dozens
Kim made cookies = x+2 dozens
Now, we need to find how many cookies did Erin made.
We can write:
\(x+2x+x+2=24\)
Solving the equation we get:
\(x+2x+x+2=24\\4x+2=24\\4x=24-2\\4x=22\\x=22/4\\x=5.5\)
So, Erin made cookies = x = 5.5 dozens
Mary made cookies = 2x =2(5.5) = 11 dozens
Kim made cookies = x+2 =5.5+2 = 7 dozens
Therefore, Erin made 5.5 dozen cookies.
i need help please , i’ll give brainliest and 5 stars
Answer:
Arc DE = 70°
Arc RST = 206°
Step-by-step explanation:
arc DE + arc DC = 180° because EC is a diameter
7x + 7 + 11x + 11 = 180°
combine like terms:
18x + 18 = 180°
subtract 18 from both sides of the equation:
18x = 162°
divide both sides by 18:
x = 9
Arc DE = 7(9) + 7 = 70°
arc RST = 2(x + 103) = 2x + 206
arc RFT = 2(x + 77) = 2x + 154
arc RST + arc RFT = 360°
so:
2x + 206 + 2x + 154 = 360°
combine like terms:
4x + 360 = 360
4x = 0
x = 0
arc RST = 2x + 206 = 206°
When solving equation, Drew's first step is shown below. Which property justifies
Drew's first step?
The figure shows the dimensions of a rectangular storage room. Darnell
has boxes that are cubes with edges 1 1/2 ft long. What is the maximum
number of boxes that Darnell can fit in the storage room? Explain.
10 ft
6 ft
8 ft
16
Select the correct answer.
Which of the following graphs shows the solution set for the inequality below?
Ix+21+7>10
OA HH
OB. H
5
1 0 1 2 3
0 1
2 3 4
10
5 6
The solution set includes all real numbers less than -5, and all real numbers greater than 1, but does not include -5 or 1 themselves.
Option D is the correct answer.
We have,
We need to isolate the absolute value |x + 2| on one side of the inequality.
We subtract 7 from both sides.
|x + 2| > 3
Next, we can split this inequality into two separate inequalities, one for when the expression inside the absolute value is positive, and one for when it is negative:
x + 2 > 3
or
- (x + 2) > 3
Solving for x in the first inequality.
x > 1
Solving for x in the second inequality.
-x - 2 > 3
Adding 2 to both sides and multiplying by -1.
x < -5
So the solution set for the inequality |x + 2| + 7 > 10 is the set of all x-values that satisfy either x > 1 or x < -5.
Using interval notation.
(-∞, -5) U (1, ∞)
Thus,
The solution set includes all real numbers less than -5, and all real numbers greater than 1, but does not include -5 or 1 themselves.
Learn more about inequalities here:
https://brainly.com/question/20383699
#SPJ1
which of the following decimal numbers can be represented accurately with a finite number of binary bits in the binary system?
Among the given, only 0.5 can be exactly represented in binary notation with a finite number of bits
Hence, option (d) is the correct choice.
Binary is a base-2 number system in which a number is represented by two states: 0 and 1. We can also refer to it as a true and false condition. A binary number is constructed in the same manner as a decimal number.
Binary data is information expressed or displayed using the binary number system. Binary data is the only type of data that a computer can directly understand and execute. It is represented numerically as a series of zeros and ones.
The binary representation of 0.5 is 0.1_2, and it is the only terminating fraction among the available possibilities.
As a result, it is the only fraction that can be expressed precisely.
All of the other possibilities have a non-terminating fraction portion and hence cannot be expressed accurately with a limited amount of bits.
For more questions on Binary Notation
https://brainly.com/question/16612919
#SPJ4
The complete question may be:
Which of the following decimal numbers can be exactly represented in binary notation with a finite number of bits?
(a) 0.1
(b) 0.2
(c) 0.4
(d) 0.5
(e) All the above
4 Jake buys 12 bags with 144 beads each, Amina buys 16 bags with
85 beads each, and Toni buys 12 bags with 75 beads each. How
many beads do they have?
Answer:
Find the total beads each person has and add them all up to find the total beads altogether.
Jake:
1 bag = 144 beads
12 bags = 144×12
= 1728 beads
Amina:
1 bag = 85 beads
16 bags = 85×16
= 1360 beads
Toni:
1 bag = 75 beads
12 bags = 75×12
= 900 beads
Total beads = 1728 + 1360 + 900
= 3988
Solve for the unknown. q- 5/6=1 5/6
Answer:
q=8/3
Step-by-step explanation:
First, add 5/6 to both sides to get rid of -5/6 to get q=16/6 then simplify to q=8/3.
Answer:
\(q=2\frac{2}{3}\)
Step-by-step explanation:
The given equation consists of a fraction and a mixed number.
First, convert the mixed number into an improper fraction by multiplying the whole number by the denominator of the fraction, adding this to the numerator of the fraction, and placing the answer over the denominator:
\(q-\dfrac{5}{6}=1 \frac{5}{6}\)
\(q-\dfrac{5}{6}=\dfrac{1 \cdot 6+5}{6}\)
\(q-\dfrac{5}{6}=\dfrac{11}{6}\)
Now, add 5/6 to both sides of the equation to isolate q:
\(q-\dfrac{5}{6}+\dfrac{5}{6}=\dfrac{11}{6}+\dfrac{5}{6}\)
\(q=\dfrac{11}{6}+\dfrac{5}{6}\)
As the fractions have the same denominator, we can carry out the addition by simply adding the numerators:
\(q=\dfrac{11+5}{6}\)
\(q=\dfrac{16}{6}\)
Reduce the improper fraction to its simplest form by dividing the numerator and denominator by the greatest common factor (GCF).
The GCF of 16 and 6 is 2, therefore:
\(q=\dfrac{16\div 2}{6 \div 2}\)
\(q=\dfrac{8}{3}\)
Finally, convert the improper fraction into a mixed number by dividing the numerator by the denominator:
\(q=2 \; \textsf{remainder}\;2\)
The mixed number answer is the whole number and the remainder divided by the denominator:
\(q=2\frac{2}{3}\)
Calculate the surface area of a triangular prism 10.8cm long and having a triangle bar face of dimensions 8.8cm by 5.7cm by 6.8cm
Answer:
268.8
Step-by-step explanation:
Let the sides of the base triangle be:
a = 8.8 cm
b = 5.7 cm
c = 6.8 cm
Let h be the length
h = 10.8 cm
The surface area is given by:
\(SA = (a + b + c)*l + 2\sqrt{ s(s - a)(s - b)(s - c)}\)
Where
\(s = \frac{a + b + c}{2} \\\\= \frac{8.8 + 5.7 + 6.8}{2} \\\\=\frac{21.3}{2} \\\\= 10.65\)
\(SA = (a + b + c)*l + 2\sqrt{ s(s - a)(s - b)(s - c)}\\\\= (8.8 + 5.7 + 6.8)*10.8 + 2\sqrt{ 10.65(10.65 - 8.8)(10.65 - 5.7)(10.65 - 6.8)}\\\\= 21.3*10.8 +2\sqrt{ 10.65(10.65 - 8.8)(10.65 - 5.7)(10.65 - 6.8)}\\\\=230.04 + 2\sqrt{ 10.65(1.85)(4.95)(3.85)}\\\\=230.04 + 2\sqrt{ 375.48}\\\\= 230.04 + 2*19.38\\\\=230.04 +38.76\\\\=268.8\)
Two groups of people, the Yellow Group and the Orange Group, suddenly find themselves in a world where there are only two 'production opportunities': pumping water and picking berries.
After a little while the Yellow Group has learned that it seems to produce about 2 gallons per hour while pumping water and about 8 berries per hour while picking.
Meanwhile the Orange Group has learned that it seems to produce about 1 gallon per hour while pumping water and about 3 berries per hour while picking.
If we were able to make production decisions that were efficient from the perspective of both groups combined, what would we consider to be the opportunity cost of producing one gallon of water?
3 berries
4 berries
25 cents
33⅓ cents
Answer:
3 berries
Explanation:
Opportunity costs for the Orange group:
Opportunity cost of pumping 1 gallon of water = 3/1 = 3 berries
Opportunity cost of picking 1 berry = 1/3 = 0.333 gallons of water
Opportunity costs for the Yellow group:
Opportunity cost of pumping 1 gallon of water = 8/2 = 4 berries
Opportunity cost of picking 1 berry = 2/8 = 0.25 gallons of water
Opportunity cost for both groups combined:
Opportunity cost of pumping 1 gallon of water = 3 berries (Orange group should pump water since opportunity cost is lower)
Opportunity cost of picking 1 berry = 0.25 gallons of water (Yellow group should pick berries since opportunity cost is lower)
Opportunity costs are the extra costs or benefits lost resulting from choosing one investment or activity over another alternative. In this case, people can either pump water or pick berries, but they cannot do both at the same time. When they are pumping water, the opportunity cost is the amount of berries that they will not be able to collect, and vice versa.
please help!!! if i don’t get this test right then i fail and i really can’t ! i’ll mark brainlyist ! pleasee
anyone
Answer:
208 cubic units
Step-by-step explanation:
The composite figure in the picture is composed of a triangular prism and a rectangular prism, both which can be calculated by the base * height formula.
First, let’s calculate the volume of the triangular prism:
The base is the area of the triangle base, which is dc/2, or 4*3/2, which is 6. Next, multiply the area of the base by the height “b”: 6 * 8 = 48.
Now, let’s calculate the volume of the rectangular prism:
The base is the rectangular base’s area, which is a*c, or 5*4, which is 20. Next multiply the base by the height “b”: 20 * 8 = 160
Now, add up the volumes of the rectangular and triangular prisms:
160 + 48 = 208 cubic units
Please need help ASAP!!
Answer:
2x+30 = 90
Step-by-step explanation:
The two angles are complementary so they add to 90 degrees
2x+30 = 90
Answer:
2x+30 = 90° is the required equation.
Step-by-step explanation:
We see that, the angle formed in the image is 90°, so by adding in the angles inside it, we get 90
hope it helps :)
Blank hundreds is the same as 4 thousand