Answer:
We know that Trinity has a total of 20 quarters and nickels, so:
x + y = 20
We also know that the value of x quarters is 25x cents, and the value of y nickels is 5y cents. The total value of the coins is $2.00, which is 200 cents:
25x + 5y = 200
We now have two equations with two variables. We can solve for one variable in terms of the other in one of the equations and substitute that expression into the other equation.
Let's solve for y in terms of x in the first equation:
y = 20 - x
Substitute this expression for y into the second equation:
25x + 5(20 - x) = 200
Simplify and solve for x:
25x + 100 - 5x = 200
20x + 100 = 200
20x = 100
x = 5
Now that we know x = 5, we can use the first equation to find y:
x + y = 20
5 + y = 20
y = 15
Therefore, Trinity has 5 quarters and 15 nickels.
Step-by-step explanation:
The sum of the square of a number and 15 is the same as eight times the number. What are the numbers?
Let us represent the unknown number by x.
From the problem statement, it is given that the sum of the square of the number (x²) and 15 is the same as eight times the number (8x).
Thus, the equation becomes:
x² + 15 = 8x
To find the solution, we need to first bring all the terms to one side of the equation:
x^2-8x+15=0
Next, we need to factorize the quadratic expression:
x^2-3x-5x+15=0
x(x-3)-5(x-3)=0
(x-3)(x-5)=0
From the above equation, x = 3 or x = 5.
Therefore, the two numbers are 3 and 5 respectively.
The numbers are 3 and 5.
https://brainly.com/question/33645093
#SPJ11
one hundred twenty-five billion, three hundred nine million, eight hundred sixty-two thousand, seven hundred forty
Answer:
135,309,862,740 is your answer.
A money market account pays 5.3% interest
compounded quarterly. What will be the balance
in the account after 5 years if $12,000 is invested?
A. $18,360.00
B. $15,613.98
C. $15,180.00
D. $14,544.00
\(~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$12000\\ r=rate\to 5.3\%\to \frac{5.3}{100}\dotfill &0.053\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{quarterly, thus four} \end{array}\dotfill &4\\ t=years\dotfill &5 \end{cases} \\\\\\ A=12000\left(1+\frac{0.053}{4}\right)^{4\cdot 5}\implies A=12000(1.01325)^{20}\implies A\approx 15613.98\)
Suppose A is invertible. Explain why ATA is also invertible. Then show that A-1 = (ATA)-1AT.
A-1 = (ATA)-1AT, and therefore ATA is also invertible.
If A is invertible, it means that there exists a matrix B such that AB = BA = I, where I is the identity matrix. This means that A has an inverse, denoted by A-1.
Now, let's consider the matrix ATA. To show that it is also invertible, we need to find a matrix C such that (ATA)C = C(ATA) = I. We can do this by substituting B = A-1 into the equation and multiplying both sides by A:ATAA-1 = AIA-1 = AA-1 = I
This means that C = A-1 is the inverse of ATA, so (ATA)-1 = A-1. Now, let's substitute this back into the equation to find A-1:A-1 = (ATA)-1AT = A-1ATA-1AT = A-1IT = A-1
Thus, we have shown that A-1 = (ATA)-1AT, and therefore ATA is also invertible.
To know more about invertible click here:
https://brainly.com/question/30453255
#SPJ11
4) a patient who just underwent a scheduled surgery and is in pacu. what should the nurse run the pump if they want to infuse a 1000ml bag of lactated ringers over 9 hours? ____ ml/hr
The nurse should run the pump at 111.1 ml/hr.
To infuse a 1000ml bag of lactated ringers over 9 hours, the nurse must determine the hourly rate at which the fluid should be infused. This can be done by dividing the total volume of the fluid (1000 ml) by the number of hours it will take to infuse it (9 hours).
So, the hourly rate would be:
1000 ml ÷ 9 hours = 111.1 ml/hr.
Therefore, the nurse should run the pump at 111.1 ml/hr in order to infuse the 1000ml bag of lactated ringers over 9 hours.
To learn more about ml/hr, visit:
https://brainly.com/question/12723210#
#SPJ11
a balloon is rising ata speed of 4 ft/s. a boy is cycling along a straight road at a speed of 16 ft/s. when the boy passes under the balloon, it is 40 ft above him. how fast is the distance between the boy and the balloon increasing 5 seconds later?
By using Pythagorean theorem and derivatives, we find the distance between the boy and the balloon is increasing at a rate of 16 ft/s, 5 seconds after the boy passes under the balloon.
We can use the Pythagorean theorem to relate the distance between the boy and the balloon, the height of the balloon, and the distance the boy has traveled:
distance^2 = height^2 + (distance traveled by the boy)^2
Taking the derivative with respect to time, we have:
2(distance)(rate of change of distance) = 2(height)(rate of change of height) + 2(distance traveled by the boy)(rate of change of distance traveled by the boy)
Simplifying and solving for the rate of change of distance, we get:
rate of change of distance = [(height)(rate of change of height) + (distance)(rate of change of distance traveled by the boy)] / distance
At the moment the boy passes under the balloon, we have:
distance = 40 ft
height = 40 ft
rate of change of height = 4 ft/s (since the balloon is rising at a speed of 4 ft/s)
distance traveled by the boy = 16 ft/s x 5 s = 80 ft
rate of change of distance traveled by the boy = 16 ft/s (since the boy is cycling at a constant speed of 16 ft/s)
Substituting these values into the equation above, we get:
rate of change of distance = [(40 ft)(4 ft/s) + (40 ft)(16 ft/s)] / 40 ft = 16 ft/s
Therefore, the distance between the boy and the balloon is increasing at a rate of 16 ft/s, 5 seconds after the boy passes under the balloon.
To know more about distance:
https://brainly.com/question/12833512
#SPJ4
how to solve (3^0x8^2)^-2
PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction. The solution to the Expression (3^0 * 8^2)^-2 is 1/4096.
The expression (3^0 * 8^2)^-2, the order of operations, which is typically referred to as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, Addition and Subtraction from left to right).
Step 1: Simplify the exponent expressions within the parentheses:
(3^0 * 8^2) = (1 * 64) = 64
Step 2: Rewrite the expression with the simplified value:
(64)^-2
Step 3: Apply the exponent rule for a negative exponent:
(64)^-2 = 1 / (64)^2
Step 4: Evaluate the expression within the parentheses:
(64)^2 = 64 * 64 = 4096
Step 5: Rewrite the expression with the simplified value:
1 / 4096
Therefore, the solution to the expression (3^0 * 8^2)^-2 is 1/4096.
To know more about Exponents.
https://brainly.com/question/13669161
#SPJ11
What’s the awnser is need it now
Answer:
A
Step-by-step explanation:
The only side that you dont have to use the Pythagorean theorem is LQ and that measure is 2. So A is the correct answer.
find side length x.
answer choices
30
25
15
40
Consider the line y=-3x+6.
Find the equation of the line that is perpendicular to this line and passes through the point (-8, 4).
Find the equation of the line that is parallel to this line and passes through the point (-8, 4).
Note that the ALEKS graphing calculator may be helpful in checking your answer.
Equation of perpendicular line: y = []
Equation of parallel line:
2 0-0
X
S
The equation of the line that is parallel to y = -3x + 6 is: y = -3x - 20.
The equation of the line that is perpendicular to y = -3x + 6 is: y = 1/3x + 20/3.
How to Find the Equations of Parallel and Perpendicular Lines?Recall the following facts:
Two lines with the same slope value are parallel lines.Two lines are perpendicular lines if they have slopes that are negative reciprocals to each other.Given the equation of a line as y = -3x + 6, the slope of the line is m = -3. This implies that, the line that is parallel to y = -3x + 6 will have the same slope of m = -3, and the slope of the line that is perpendicular to y = -3x + 6 will be m = 1/3.
To write the equation of the perpendicular line, substitute m = 1/3 and (a, b) = (-8, 4) into y - b = m(x - a):
y - 4 = 1/3(x - (-8))
y - 4 = 1/3x + 8/3
y = 1/3x + 8/3 + 4
y = 1/3x + 20/3
To write the equation of the parallel line, substitute m = -3 and (a, b) = (-8, 4) into y - b = m(x - a):
y - 4 = -3(x - (-8))
y - 4 = -3x - 24
y = -3x - 24 + 4
y = -3x - 20
Learn more about the equation of parallel and perpendicular lines on:
https://brainly.com/question/14005330
#SPJ1
Simplify the expression 82 + 9 (12: 3 x 2) – 7.
Explain each of your steps.
Answer:
129
Step-by-step explanation:
8^2 + 9 (12/3 x 2) -7 Parentheses first 12 : 3 is the same as 12/3
8^2 + 9 (4x2)-7 Parentheses:
8^2 + 9 (8) - 7 Exponent 8 x 8:
64 + 9(8) - 7 Multiply:
64 + 72- 7 Add :
136 - 7 Subtract:
129
The answer is 129.
Hope this helps :)
Use the least common denominator to write an equivalent fraction for each fractoin a .5/6 2/9 b. 1/12 3/8 c. 5/9 2/15
what is the simplified expression for 74 x 76/ 78
Answer:
2812/39
Step-by-step explanation:
74 • (76/78)
76/78 = 38/39
74 • 38/39 = 2812/39
What is the function for the red line?
It has to be one that matches up against the stars!!
red line is crimson because itit tha national colour of nepal
What is the volume of the right triangular prism in cubic meters?
Answer:
8×3×2=48
Step-by-step explanation:
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.
Answer:
48 cubic meters
Step-by-step explanation:
What is the probability that either event will occur?
5
25
A
5
B
15
P(A or B)=P(A) + P(B) - P(A and B)
P(A or B) = [?]
Enter as a decimal rounded to the nearest hundredth.
Answer:
0.90
Step-by-step explanation:
You want the probability of A or B given the counts in the Venn diagram shown.
ProbabilityThe probability of A or B will be the total number of counts in the circles divided by the total number of counts shown on the chart.
P(A or B) = (25 +5 +15)/(25 +5 +15 +5) = 45/50 = 90/100
P(A or B) = 0.90
<95141404393>
In this case, the probability of either event A or B occurring is 0.53 or 53%, assuming that events A and B cannot occur simultaneously.
Explanation:The probability of either event A or B happening can be found using the formula P(A or B) = P(A) + P(B) - P(A and B). In this case, the probability of event A occurring is 5/25, and the probability of event B occurring is 5/15. Since we do not know if events A and B can occur simultaneously, we will assume they can't (i.e., they're mutually exclusive), making P(A and B) = 0. So, P(A or B) = 5/25 + 5/15 - 0 = 0.2 + 0.33 = 0.53, or 53% when rounded to the nearest hundredth as a decimal.
Learn more about Probability here:https://brainly.com/question/22962752
#SPJ2
Mike has only 2 red apples and 3 green apples in abowl. Without looking he chooses an apple and doesnot replace it. Then he chooses another apple. What isthe probability that both apples chosen will be red?
First pick: Random apple
2 out of the 5 apples are red. Therefore, the probability of choosing a red apple is:
\(\frac{2}{5}\)Second pick: Red apple removed
We're left with 4 apples, one of which is red.
Therefore, the probability of choosing the red apple from this bowl is:
\(\frac{1}{4}\)To get the probability of the two events happening right next to each other, we mulitply both probabilities:
\(\frac{2}{5}\cdot\frac{1}{4}=\frac{1}{10}\)Meaning that the probability that both apples chosen will be red is 1/10, or 10%
What is the length of ? Round to the nearest tenth. 11. 8 cm 12. 9 cm 14. 9 cm 15. 3 cm.
The question is an illustration of Pythagoras theorem
The length of the hypotenuse is 11.8 cm
How to determine the length of the hypotenuseThe legs of the right triangle have the following measures
Leg 1 = 7 cm
Leg 2 = 9.5 cm
So, the length of the hypotenuse (h) is calculated using the following Pythagoras theorem.
\(h = \sqrt{Leg\ 1^2 + Leg\ 2^2}\)
This gives
\(h = \sqrt{7^2 + 9.5^2}\)
Evaluate the squares
\(h = \sqrt{139.25}\)
Evaluate the exponent
\(h = 11.8\)
Hence, the length of the hypotenuse is 11.8 cm
Read more about right triangles at:
https://brainly.com/question/2437195
Answer:11.8
Step-by-step explanation:
Y E S
A circular sector has an 8.26-inch radius and a 12.84-inch arc length. There is another sector that has the same area and the same perimeter. What are its measurements
The dimensions of a different sector with the same area and perimeter are An alternative sector's radius is 6.42 inches. An alternative sector has an arc length of 16.52 inches.
What does an arc's length signify?The distance between two places along a segment of a curve is known as the arc length.
Sector radius, r = 8.26 inches
Sector arc length = 12.84 inches
Sector perimeter = 2r + length of the arc
The specified sector's perimeter is equal to 2 x 8.26 x 12.84 x 29.36 inches.
The circle's circumference is 2 + 8.26 + 16.52.
The specified circle's area is A = 8.262 * 68.2276.
Sector area, A = 53.0292 inch2
Consequently, we have;
2R plus A equals 29.36 inches
A·R = 53.0292 × 2
that provides;
R² + 53.0292 = 14.68·R
R² - 14.68·R + 53.0292 = 0
using a graphing calculator to factor yields;
(R - 6.42)·(R - 8.26) = 0
R = 6.42 or R = 8.26
R = 8.26 is the measurement for the first sector.
Due to the distinctions between the sectors, we have;
R = 6.42 inches is the radius of the other sector.
The length of the arc, A = 29.36 - 2R
∴ A = 29.36 - 2 × 6.42 = 16.52
To know more about arc length visit:-
brainly.com/question/16403495
#SPJ4
let an n>0 be a sequence defined by an = n^2 -3n +2 for n>=0. a) find the first three elements of the sequence. b) show that the sequence satisfies the recurrence relation an =2an-2 -an-2 +2 for ever n >=2
a) To find the first three elements of the sequence defined by an = n^2 - 3n + 2, we simply substitute n = 0, 1, 2 into the expression for an and simplify: a0 = 2, a1 = 0, a2 = 0.
b) To show that the sequence satisfies the recurrence relation an = 2an-2 - an-2 + 2 for every n >= 2, we can use mathematical induction. Assume the relation holds for some arbitrary k >= 2. Then we can show that it also holds for k+1 by substituting k+1 into the expression and using the fact that an = (k+1)^2 - 3(k+1) + 2 = k^2 - k + 2 + 2k. After simplification, we arrive at the expression for ak+1 in terms of ak and ak-2, showing that the relation holds for k+1.
a) To find the first three elements of the sequence, we simply substitute n = 0, 1, 2 into the expression for an and simplify:
a0 = (0)^2 - 3(0) + 2 = 2
a1 = (1)^2 - 3(1) + 2 = 0
a2 = (2)^2 - 3(2) + 2 = 0
Therefore, the first three elements of the sequence are 2, 0, 0.
b) To show that the sequence satisfies the recurrence relation an = 2an-2 - an-2 + 2 for every n >= 2, we need to show that the expression for an can be written in terms of the previous two terms of the sequence, a(n-2) and a(n-1), using the given recurrence relation.
We can write:
an = n^2 - 3n + 2
= (n-2)^2 - 3(n-2) + 2 + 2(n-2)
= (n-2)^2 - 3(n-2) + 2n
Next, we can substitute n-2 for n in the expression for a(n-2) to get:
a(n-2) = (n-2)^2 - 3(n-2) + 2
Finally, we can substitute n-1 for n in the expression for a(n-1) to get:
a(n-1) = (n-1)^2 - 3(n-1) + 2
Now, we can use these expressions to write an in terms of a(n-2) and a(n-1) as follows:
an = (n-2)^2 - 3(n-2) + 2n
= a(n-2) + 2(n-1) - (n-1)^2 + 3(n-1)
= 2a(n-2) - a(n-1) + 2
Therefore, we have shown that the sequence satisfies the recurrence relation an = 2an-2 - an-2 + 2 for every n >= 2.
Learn more about recurrence relation:
https://brainly.com/question/31384990
#SPJ11
given circle o, what are the values of x and y?
Answer:
x = 38°
y = 90°
Step-by-step explanation:
x is an inscribed angle, so, 78/2=39
y is an inscribed angle of which connects two endpoints of the diameter, so y = 90°
Answered by GAUTHMATH
I need help. Plz Help Me, PLZZZZZZZZ
Answer:
10
Step-by-step explanation:
\( {14}^{2} = ( {9}^{2} + {x}^{2} )\)
\(196 = 81 + {x}^{2} \)
\(196 - 81 = {x}^{2} \)
\(115 = {x}^{2} \)
\(x = \sqrt{115} \)
X = 10.7
Determine whether the geometric series converges. If it converges, find its sum. 1 1 -1+ Select the correct choice below and fill in any answer boxes within your choice. OA. If the series is convergent, the sum of the series is (Type an exact answer.) OB. The series diverges.
The correct choice is OB. The series diverges.
The given series is: 1, 1, -1, ...
To determine whether the geometric series converges, we need to check if the absolute value of the common ratio between consecutive terms is less than 1.
The common ratio between consecutive terms is -1/1 = -1.
The absolute value of the common ratio is |-1| = 1.
Since the absolute value of the common ratio is equal to 1, which is not less than 1, the geometric series diverges (choice OB).
Therefore, the correct choice is OB. The series diverges.
To know more about geometric series, visit:
https://brainly.com/question/32532373
#SPJ11
7. The ratio of basketball players to baseball players at Cypress High School is 4 to 3. If Coach Nelson has 20 basketball players, how many players does he have for basketball and baseball combined?
A. 15
A. 15
B. 140
B. , 140,
C. 35
C. 35
D. none of these
D. none of these
\( \huge{ \blue{ \frac{4}{3} = \frac{20}{n} }}\)
\( \bold{ = \frac{3 \times 20}{4n} }\)
\( = \frac{60}{4} \)
\( \huge{ \bold{ \gray{ \boxed{ = \boxed{15}}}}}\)
Step 2: Add the number of basketball players and the number of baseball players\( \huge{ \orange{20 + 15}}\)
\( \huge{ \bold{ \red{ \boxed{ = \boxed{35}}}}}\)
Answer:\( \huge{ \bold{ \green{ \boxed{ \boxed{ \underline{c. \: 35}}}}}}\)
#CARRYONLEARNING
For any given event, the probability of that event and the probability of the _______ of the event must sum to one.
For any given event, the probability of that event and the probability of the non-occurrence of the event must sum to one.
A probability is a number that reflects the chance or likelihood that a particular event will occur. Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%.
The probability of occurrence formula, also known to some as the “probability of occurrence formula PMP” is a tool for determining the chance that a given risk will occur. The formula requires two data points: number of favourable events possible and the total number of events possible.
Non occurrence patterns identifies the absence of events when detecting a pattern.
To know more about probability
https://brainly.com/question/30034780
#SPJ4
Type the correct answer in the box.
The product of (3 - 4) and (blank)
is 25.
Answer:
-25
Step-by-step explanation:
Since product mean multiply, we multiply (3-4) and (blank), which we'll call "n".
(3-4)n = 25
subtract in parentheses
(-1)n = 25
remove parentheses
-1n = 25
swap signs
n = -25
Acil cevap lütfen hemen atarsanız sevinirim (✿^‿^)♥️♥️♥️
Answer:
hai :D
Step-by-step explanation:
Also try D
Angles please help! Will give brainly .
six distinct integers are picked at random from . what is the probability that, among those selected, the second smallest is ?
The probability that the second smallest integer from a set of six distinct integers is picked at random is the same as the probability that the first smallest is 1.
This can be expressed mathematically as:
P(second smallest) = P(first smallest).
The probability of the first smallest integer is the number of combinations that result in the first smallest number divided by the total number of possible combinations of six distinct integers.
For example, if we have six distinct integers in a set, A, B, C, D, E, and F, the probability of A being the first smallest is the number of combinations that result in A being the smallest divided by the total number of combinations.
The combinations that result in A being the smallest are {A, B, C, D, E, F}, {B, A, C, D, E, F}, {C, A, B, D, E, F}, and so on. That’s a total of 6 combinations out of the total possible number of combinations, which is 6 x 5 x 4 x 3 x 2 x 1 = 720.
Therefore, P(first smallest) = 6/720 = 1/120. Similarly, the probability of the second smallest number being the same is also 1/120.
To know more about probability refer here:
https://brainly.com/question/30034780
#SPJ11
Please answer correctly !!!!! Will mark brainliest !!!!!!!!!!!
Answer:
9 degrees Celsius
Step-by-step explanation:
I graphed the function on the graph below to find the maximum of the parabola. The maximum is at (9,200), which means at 9 degrees Celsius, there are 200,000 fish.
The temperature at which there will be maximum number of fishes is given by the point (9, 200), is it is 9 degrees.
Given data:
To find the temperature that will result in the maximum number of fish, determine the x-value (temperature) at the vertex of the quadratic function.
The given function is P(x) = -2(x - 9)² + 200, where P(x) represents the fish population in thousands and x represents the water's temperature.
The general form of a quadratic function is y = a(x - h)² + k, where (h, k) represents the vertex of the parabola.
The vertex form of the function is P(x) = -2(x - 9)² + 200.
Comparing this to the general form, the vertex of the parabola is at the point (9, 200).
Hence, the temperature that will result in the maximum number of fish is 9 degrees (the x-value of the vertex).
To learn more about parabola click :
https://brainly.com/question/24042022
#SPJ2