Answer:
-7
Step-by-step explanation:
Substituting x = 4,
f(4) = 4 - 11 = -7
Samir and Kai are learning how to roller skate at the skate city roller rink. Samir has skated y laps around the rink. Kai has skated 4 fewer laps than Samir. write an expression that shows how many laps Kai has skated around the rink.
Answer:
x=y-4
Step-by-step explanation:
If Samir has skated y laps around the rink, then Kai has skated y - 4 laps around the rink.
So the expression that shows how many laps Kai has skated around the rink is: x=y-4
Answer:
Step-by-step explanation: patience. wyd here.
but the answer is x=y-4
A circle has a circumference of 7{,}8507,8507, comma, 850 units. What is the radius of the circle?
Use 3. 14 for pi and enter your answer as a decimal
True or False: The following relation is a function.
{(2,4), (3, 1), (- 3,2), (0,0), (1, 0), (0,4)}
O A. True
B. False
Answer:
false
Step-by-step explanation:
A club puts its members into `5` groups for an activity. `7` students leave early, so there are only `3` students left to finish the activity.
whats the equation
Draw an angle of -45 degrees in standard position . Then find the reference angle
Answer:
45°
Step-by-step explanation:
-45° would be 360°-45°=315°
Since 315° is in Quadrant IV, then its reference angle is 360°-315°=45°
So really, -45° is just 45° clockwise which is also our reference angle.
andy is buying a car
he negotiated a 7% decrease on a £6 500 car
he will pay the full balance in 12 equally months
calculate the amount paid each month
Step 1: Find the Discounted Amount
First, let's figure out how much Andy saves with the 7% discount. To do this, we need to find 7% of £6,500.
7% is 7 out of 100, so it can also be written as 0.07 (7/100 = 0.07).
So, the amount of discount is 0.07 multiplied by £6,500.
Discount = 0.07 * 6,500 = £455.
Step 2: Find the Price After Discount
Now, we need to subtract the discount from the original price of the car to find out how much Andy needs to pay after the negotiation.
Price after discount = Original Price - Discount
= £6,500 - £455
= £6,045.
Step 3: Calculate the Monthly Payments
Andy is going to pay the amount in 12 equal monthly payments. So we have to divide the total amount he has to pay by 12.
Monthly payment = Total Amount / Number of months
= £6,045 / 12
≈ £503.75.
And there you go! Andy will have to pay approximately £503.75 each month for 12 months to buy the car after negotiating a 7% decrease on the original price.
Just imagine Andy slicing up the total cost into 12 equal little pieces, like a pie, and then paying for one slice each month!
$1,500 are deposited into an account with a 7% interest rate, compounded quarterly.
Find the accumulated amount after 5 years.
Hint: A=P(1+r/k)kt
Answer:
$2122.17
Step-by-step explanation:
Principal/Initial Value: P = $1500
Annual Interest Rate: r = 7% = 0.07
Compound Frequency: k = 4
Period of Time: t = 5
\(\displaystyle A=P\biggr(1+\frac{r}{k}\biggr)^{kt}\\\\A=1500\biggr(1+\frac{0.07}{4}\biggr)^{4(5)}\\\\A\approx\$2122.17\)
Answer:
Step-by-step explanation:
A quarterback throws an incomplete pass. the height of the football at time t is modeled by the equation h(t) = –16t2 40t 7. rounded to the nearest tenth, the solutions to the equation when h(t) = 0 feet are –0.2 s and 2.7 s. which solution can be eliminated and why? the solution –0.2 s can be eliminated because time cannot be a negative value. the solution –0.2 s can be eliminated because the pass was not thrown backward. the solution 2.7 s can be eliminated because the pass was thrown backward. the solution 2.7 s can be eliminated because a ball cannot be in the air for that long due to gravity.
The solution that can be eliminated is (a) the solution –0.2 s can be eliminated because time cannot be a negative value.
How to determine the solution that can be eliminated?The equation is given as:
h(t)) = -16t^2 + 40t + 7
From the question
When h(t) = 0, the values of t are
t = -0.2 and t = 2.7
The t in the function h(t) represents time
As a general rule, time cannot be negative.
This means that the solution t = -0.2 can be eliminated
Hence, the solution that can be eliminated is (a) the solution –0.2 s can be eliminated because time cannot be a negative value.
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What is the measure of angle L
Answer:
∠L=23°
Step-by-step explanation:
(6x-5)+(x+9)=(9x-24) (ext angle of triangle)
6x-5+x+9=9x-24
7x+4=9x-24
7x-9x=-24-4
-2x=-28
2x=28
x=28÷2
=14
Hence, ∠L = (x+9)°
= (14+9)°
= 23°
158962.5 rounded to nearest tenth
Answer:
158962.5
Step-by-step explanation:
it is already round to the tenth ,but if you are talking about rounding to the neartest whole number is it 158963
sorry if i am wrong :) have a nice day
An angle measures 18.8° less than the measure of its complementary angle. What is the measure of each angle?
The complementary angles will be 65.6° and 24.4°.
What exactly are complementary angles?
Supplementary and complementary angles are defined by the sum of two angles. If the total of two angles is 90 degrees, they are considered to be complimentary angles since they produce a right angle when combined. If the total of two angles is 180 degrees, they are considered to be supplementary angles since they produce a linear angle when combined.
Now,
Let x be a angle then its complementary angle will be 90°-x as sum of complementary angles is equal to 90°.
as given
90°-x-x=18.8°
9--2x=18.8
2x=71.2
x=65.6° and 90-x°=24.4°
hence,
The complementary angles will be 65.6° and 24.4°.
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Nancy bought an extra-large bag of 1,100 beads to make necklaces. When she got home, she found another bag with 700 beads in it. If she uses all of the beads and uses 50 beads per necklace, how many necklaces can she make? A. 22 B. 14 C. 36 D. 400
Answer: C
Step-by-step explanation:
Given
Nancy bought the bag with 1100 beads to make necklaces
She found another bag with 700 beads
So, the total number of beads is the sum of two i.e. 1800 beads
It takes 50 beads per necklace
The number of necklaces that can be formed is
\(\Rightarrow \dfrac{1800}{50}\\\\\Rightarrow 36\ \text{Necklaces}\)
Provide detailed answers including graphs for the following questions.
You invest $100,000 on January 1st in a lottery. The lottery provides you a 2% chance of winning $1 million on December 31st in each of the next 10 years. Are there any conditions under which would you make this investment?
A monopolist’s cost structure is such that its total costs are TC = 300 + 200Q + 3Q^2. The market demand is Q = 500 - P. What is the profit-maximizing price and quantity? Show this mathematically and graphically. What are the producer and consumer surpluses and firm profit?
The profit-maximizing price and quantity for the monopolist are $350 and 150 units, respectively ,The expected return is greater than the initial investment And the producer surplus is $33,750, consumer surplus is $31,875, and firm profit is $37,500.
Ignoring the time value of money and discounting, the expected value of the lottery winnings each year is 2% × $1 million = $20,000, and this goes on for 10 years.
Thus, the expected value of the investment is 10 × $20,000 = $200,000.
Hence, the expected return is greater than the initial investment, and there is a condition under which the investment can be made.
The monopolist’s total cost can be represented as:
TC = 300 + 200Q + 3Q².
The demand function for the monopolist is given as:
Q = 500 - P,
which can be rearranged to derive the price function as:
P = 500 - Q.
From the total cost function, we can obtain the marginal cost (MC) as the derivative of TC with respect to Q, and it can be represented as follows:
MC = dTC/dQ = 200 + 6Q.
From the marginal cost, we can set the marginal revenue (MR) equal to MC to get the profit-maximising quantity as follows:
MR = dTR/dQ = P + Q(500 - P) = 500 - Q + 500Q - Q² = 1000Q - Q² - 500 = MC = 200 + 6Q.
Substituting P = 500 - Q in the above expression and rearranging yields the following:
Q = 150, and hence, P = $350.
Therefore, the profit-maximising price is $350, and the quantity is 150. We can verify that the solution is a maximum by computing the second-order condition, which is negative.
To calculate the producer surplus, we first need to obtain the area above the marginal cost and below the price.
Thus, we have:
PS = ∫ MC to QdQ
= ∫ (200 + 6Q) dQ from 0 to 150
= [200Q + 3Q²] from 0 to 150
= $33,750.
Similarly, the consumer surplus can be computed as the difference between the market value of the product and what the consumers paid for it. The area below the price line and above the demand curve yields the consumer surplus.
Thus, we have:
CS = ∫ P to QdQ
= ∫ (500 - Q) dQ from 0 to 150
= [(500 × Q) - (Q²/2)] from 0 to 150
= $31,875.
Finally, the firm profit can be obtained by multiplying the profit-maximizing quantity by the profit-maximizing price and subtracting the total cost.
Thus, we have:
Profit = TR - TC = Q × P - TC = (150 × $350) - (300 + 200 × 150 + 3 × 150²) = $37,500.
Hence, the producer surplus, consumer surplus, and firm profit are $33,750, $31,875, and $37,500, respectively.
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answer is Incorrect. (b): Your answer Is Incorrect. Brian deposits $7000 into an account that pays simple interest at an annual rate of 2%. He does not make any more deposits. He makes no withdrawals until the end of 2 years when he withdraws all the money.
The amount withdrawn at the end of the 2 years is given as follows:
$7,280.
How to obtain the balance using simple interest?The equation that gives the balance of an account after t years, considering simple interest, is modeled as follows:
A(t) = P(1 + rt).
In which the parameters of the equation are listed and explained as follows:
A(t) is the final balance.P is the value of the initial deposit.r is the interest rate, as a decimal.t is the time in years.The parameter values for this problem are given as follows:
P = 7000, r = 0.02, t = 2.
Hence the balance of the account at the end of the two years, representing the amount withdrawn, is given as follows:
A(2) = 7000 x (1 + 0.02 x 2)
A(2) = $7,280.
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I am as equally likely to be able to grade each part of problem number one in the interval of 20 and 45 seconds. Answer the following questions that pertain to this story. a) Draw a picture of the uniform density function and label the vertical and horizontal axes correctly. Make sure that your function's vertical axis portrays the correct probability and that you show work to find it. (2 pt.) b) What is the probability that it will take me between 23 and 35 seconds to grade a part of problem one? Show your work based on the density function in a). Give your answer as both an unreduced fraction and a decimal correctly rounded to 3 significant decimals. Don't forget probability notation. (3 pt.) WARNING: Standard normal values use only 2 decimals. You don't find normal probabilities unless you have a standard normal value. Normal probabilities are rounded to 4 decimals. 4. Cholesterol levels of women are normally distributed with a mean of 213 mg/dL and a standard deviation of 5.4 mg/dL according to JAMA Internal Medicine. Use this story to answer the three questions that follow: a) Find the probability that a randomly chosen woman's cholesterol level will be less than 202 mg/dL. Show your work and use a standardization. Show probability notation and a diagram. Use a table to find the probability and show a sketch of how you used it. (3 pt.) b) What is the cholesterol level in a unhealthy woman that would be considered to represent the break-point for the lowest 4% of all observations? Show all your work including all work un- standardizing. Show probability notation and a diagram. Round final answer to one decimal. Use a table to find the probability and show a sketch of how you used it. (3 pt.) c) Find the probability that in samples of 35, the average cholesterol level is higher than 216 mg/dL. Show work and use your standardization. Show probability notation and a diagram. Use a table to find the probability and show a sketch of how you used it. (3 pt.)
a) According to the uniform density function, the range of the possible times during which a part of the problem is being graded is between 20 and 45 seconds. b) The decimal form is 0.036 rounded to three significant decimals. Therefore, the answer is P(23 ≤ x ≤ 35) = 0.036.
a) Picture of the uniform density function and labeled correctly: Assuming that 20 and 45 seconds is the interval during which the grading will take place, we can draw a uniform density function as follows:
the horizontal axis shows time in seconds, and the vertical axis shows probability: According to the uniform density function, the range of the possible times during which a part of the problem is being graded is between 20 and 45 seconds.
b) Probability that it will take me between 23 and 35 seconds to grade a part of problem one:
If we look at the picture we drew above, the probability of a part of problem one being graded between 23 and 35 seconds is represented by the area under the curve in the region between 23 and 35 seconds.
Using the area formula for the rectangle gives us:
Area = height × width
= 1/(45 - 20) × (35 - 23)
= 12/325.
The probability of a part of problem one being graded between 23 and 35 seconds is 12/325.
The above answer is in unreduced fraction.
The decimal form is 0.036 rounded to three significant decimals.
Therefore, the answer is P(23 ≤ x ≤ 35) = 0.036.
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HELP RIGHT NOW!!!!!!!!!
Answer:
C) ASA
Step-by-step explanation:
The triangles are congruent by ASA.
Each triangle has two angles congruent to two corresponding angle of the other triangle. Also the common side is congruent to itself and is the side included by the angles. By ASA, the triangles are congruent.
(L8) Apply the 45º-45º-90º Triangle Theorem to find the length of a leg of a right triangle if the length of the hypotenuse is 102.
The 45º-45º-90º Triangle Theorem states that in a right triangle where the two acute angles are both 45º, the length of the hypotenuse is √2 times the length of each leg.
Therefore, if the length of the hypotenuse is 102, then the length of each leg is 102/√2 or approximately 72.14.
To apply the 45º-45º-90º Triangle Theorem to find the length of a leg of a right triangle with a hypotenuse of 102, you need to use the ratio 1:1:√2 for the leg, leg, and hypotenuse respectively. Since the hypotenuse is 102, you can set up the following equation:
Leg : Leg : Hypotenuse = 1 : 1 : √2
Let "x" represent the length of each leg. Then, the relationship becomes:
x : x : 102 = 1 : 1 : √2
To solve for x, divide the hypotenuse by √2:
x = 102 / √2
To rationalize the denominator, multiply the numerator and denominator by √2:
x = (102 * √2) / (2)
x = 51√2
So, the length of each leg of the 45º-45º-90º right triangle is 51√2 units.
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The door to your bathroom has never closed well. In fact, every time you try to use the bathroom, the cats bust open the door because it simply won’t latch. You look at the door and it appears that the door frame is slightly tilted. The person who built your house claims that can’t be true because he measured your door frame and found it be an exact right angle. He claims what you’re seeing is an optical illusion. If you knew the door frame measurements were as pictured to the right, did the builder install your door frame correctly at a right angle?
Answer:
If the door was at the right angle then that means it is not an optical illusion, but if the door is straight then that means the door is not at a right angle so it's an optical illusion.
Step-by-step explanation:
Maybe if the door was straight, but you saw it at a right angle then maybe you were laying down, you were sick, seeing things or you drank a lot of alcohol that day. If it was a right angle on that day then it was not an optical illusion.
No explanation needed.
BRAINLY GET RID OF BOTS
HELP ASAP IF U A REAL ONE.
A
E
300
x
709
C
O
B
D
mZD = [?]
Enter the number that belongs in
the green box
Enter
Answer:
80°
Step-by-step explanation:
Because the triangle are congruent, the 3rd angle of both triangle needs to bring the sum of the triangle to 180°, so the last angle must be 80
The amount of rust on an old car doubles every three years. If there are 12 g of rust initially how long will it take for 96 g of rust to be formed?
Answer:
9 years
Step-by-step explanation:
12g = initial
+3 years = 24g
+3 years = 48g
+3 years = 96g
Triniti had $500 in a savings account at the
beginning of the summer. She wants to
have at least $200 in the account by the
end of the summer. She withdraws $25
each week for food, clothes, and movie
tickets. How many weeks can Triniti
withdraw money? Write an inequality you
could use to represent this problem.
please hurry
Answer: 12
Step-by-step explanation: by the end of 12 weeks shell have 200 dollars left
what is a simpler form of the radical expression 4 sqrt 1296 x^16y^12
So, the simpler form of the radical expression 4 sqrt 1296 x^16y^12 is 144x^14y^14 sqrt (x) sqrt (y).
To simplify the radical expression 4 sqrt 1296 x^16y^12, we need to first factor the number inside the radical. 1296 can be factored into 36 x 36, which simplifies to 6^4. So, the expression becomes 4 sqrt (6^4 x^16y^12).
Next, we can simplify the expression further by using the property of exponents that says a^m x a^n = a^(m+n). This means that we can combine the exponents of x and y, which gives us 4 sqrt (6^4 x^(16+12) y^(12+16)). Simplifying this, we get 4 sqrt (6^4 x^28 y^28).
Now, we can simplify the radical expression even further by using the property that says sqrt (a x b) = sqrt (a) x sqrt (b). Applying this to our expression, we get 4 x 6^2 x sqrt (x^28) x sqrt (y^28). Simplifying this further, we get 144x^14y^14 sqrt (x) sqrt (y).
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When a number is added to n plus StartFraction 1 Over 5 EndFraction n equals 24. Of itself, the result is 24. The equation that models this problem is n + n plus StartFraction 1 Over 5 EndFraction n equals 24.N = 24. What is the value n? n = 18 n = 20 n = 21n equals 23 and StartFraction Over 5 EndFraction 5 n = 23n equals 23 and StartFraction Over 5 EndFraction 5
Answer: n = 20
Step-by-step explanation:
Given that the problem goes thus:
When a number, n is added to 1/5 n of itself, the outcome obtained is 24.
Mathematically,
n + 1/5 of n = 24
n + (1/5n) = 24
1n + 1/5n = 24
(5n + 1n) / 5 = 24
6n / 5 = 24
6n = 24 × 5
6n = 120
n = 120 / 6
n = 20
Answer:
B on edg, n=20
Step-by-step explanation:
Please help me
-
-
-
Thanks by the way!!
Answer:
m=3
Step-by-step explanation:
subtract the e from both sides so you now have 15=5m divide each by 5 and you get 3=m
Answer:
m = 3
Step-by-step explanation:
-5m + 18 = 3
-5m = 3 - 18
-5m / -15 = 3
Answer: m = 3
Hope this helped
Brainliest is aprreciated.
A home has a rectangular kitchen. If listed as ordered pairs, the corners of the kitchen are (8, 4), (−3, 4), (8, −8), and (−3, −8). What is the area of the kitchen in square feet?
20 ft2
46 ft2
132 ft2
144 ft2
If the corners of the kitchen are (8, 4), (−3, 4), (8, −8), and (−3, −8), the area of the kitchen is 132 square feet. So, the correct option is C.
To find the area of the rectangular kitchen, we need to use the formula for the area of a rectangle, which is A = L x W, where A is the area, L is the length, and W is the width.
From the given ordered pairs, we can determine the length and width of the rectangle. The length is the distance between the points (8,4) and (-3,4), which is 8 - (-3) = 11 feet. The width is the distance between the points (8,4) and (8,-8), which is 4 - (-8) = 12 feet.
Now that we know the length and width, we can find the area by multiplying them together:
A = L x W = 11 x 12 = 132 square feet
Therefore, the correct answer is C.
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Answer C. 132 fT2
Step-by-step explanation:
yoyoyo pls help with math
Answer:
C
Step-by-step explanation:
Calculate the ratio of corresponding sides, image to preimage, that is
scale factor = \(\frac{DE}{AB}\) = \(\frac{14}{35}\) = \(\frac{2}{5}\) → C
if you were to give a horse 1 ml per 250 lb of body weight of an anthelmintic, how many milliliters would you give to a horse that weighs 1250 lb?
Answer:
5 ml
Step-by-step explanation:
1250 lb * ( 1 ml / 250 lb ) = 5 ml
I only got two so far...
Answer:NML iscocilese triangle
Step-by-step explanation:
Answer:
right angle, obtuse angle and straight angle
Step-by-step explanation:
i hope this is what you mean sry if it didn't help
the perimeter of a rectangle is 26 cm. the length is 3 cm longer than the width. if w represents the width, which equation represents the situation?