Answer:
A. 28
Step-by-step explanation:
A. 28
step 1.
We know that the diameter of the circle inscribed within the triangle is 28 miles, and we know that E is the incenter of triangle ABC.
step 2.
Next, we learned that the perpendicular legs from the incenter to the sides of the triangle are congruent, and we know that the radius of a circle is 1/2 of the diameter of the circle.
step 3.
Since the diameter of the circle is 28, we know the distance of segment DE is 14. Next, we know the perpendicular legs are equal to segment DE. Thus, we can solve for the amount of additional miles of road by writing 14 + 14 = 28.
Please help me with this.
Answer:
-4 ≤ x ≤ 4
Step-by-step explanation:
The domain is essentially the range of values x can take. In the figure, the highest value is 4 and the lowest is -4.
HELP PLS A carnival charges $2.50 per ride after an entrance fee.You paid a total of $22.50 after 6 rides.Find the total cost for 15 rides.
A sample of n = 16 scores has a mean of M = 40 and a variance of s2 = 64. What is the estimated standard error for the sample mean?
Answer:
[tex]S.E = 2[/tex]
Step-by-step explanation:
Given
[tex]Mean = 40[/tex]
[tex]s^2 = 64[/tex] ----- variance
[tex]n = 16[/tex] ------------ sample
Required
Determine the S.E
The estimated standard error (S.E) for the sample mean is calculated using the following formula:
[tex]S.E = \frac{SD}{\sqrt n}[/tex]
Where
[tex]SD = Standard\ Deviation[/tex]
[tex]SD = \sqrt {s^2}[/tex]
[tex]SD = \sqrt {64}[/tex]
[tex]SD = 8[/tex]
So:
[tex]S.E = \frac{SD}{\sqrt n}[/tex]
[tex]S.E = \frac{8}{\sqrt{16}}[/tex]
[tex]S.E = \frac{8}{4}[/tex]
[tex]S.E = 2[/tex]
Hence: the estimated standard error for the sample mean is 2
Find the amount that results from investing $5000 at 3% compounded continuously for 5 years. Round your
answer to two decimal places.
Answer:
The amount that results from investing $5000 at 3% compounded continuously for 5 years is $5800
Step-by-step explanation:
We are given:
Principal Amount (P) = $5000
Years (t) = 5
Rate (r) = 3% or 0.03
We need to find New Amount (A)
The formula used is: [tex]A=P(1+\frac{r}{n})^{nt}[/tex]
Since amount is compounded continuously so n=1
Putting values and finding A
[tex]A=P(1+\frac{r}{n})^{nt}\\A=5000(1+\frac{0.03}{1})^{1*5}\\A=5000(1+0.03)^5\\A=5000(1.03)^5\\A=5000(1.16)\\A=5800[/tex]
So, New Amount (A) = $5800
The amount that results from investing $5000 at 3% compounded continuously for 5 years is $5800
A recent study reported that the prevalence of hyperlipidemia (defined as total cholesterol over 200) is 30% in children 2-6 years of age. If 12 children are analyzed.
Required:
a. What is the probability that at least 3 are hyperlipidemic?
b. What is the probability that exactly 3 are hyperlipidemic?
c. How many would be expected to meet the criteria for hyperlipidemia?
Answer:
(a) 0.7472
(b) 0.2397
(c) 3.6
Step-by-step explanation:
Let X denote the number of children who are hyperlipidemic.
The proportion of children who are hyperlipidemic is, p = 0.30.
A random sample of n = 12 children are analyzed.
Every child is independent of the others to be expected to meet the criteria for hyperlipidemia.
The random variable X follows a binomial distribution with parameters n = 12 and p = 0.30.
(a)
Compute the probability that at least 3 are hyperlipidemic as follows:
[tex]P(X\geq 3)=1-P(X<3)\\\\=1-\sum\limits^{2}_{0}{{12\choose x}(0.30)^{x}(0.70)^{12-x}}\\\\=1-0.25282\\\\=0.74718\\\\\approx 0.7472[/tex]
Thus, the probability that at least 3 are hyperlipidemic is 0.7472.
(b)
Compute the probability that exactly 3 are hyperlipidemic as follows:
[tex]P(X=3)={12\choose 3}(0.30)^{3}(0.70)^{12-3}\\\\=220\times 0.027\times 0.040353607\\\\=0.23970042558\\\\\approx 0.2397[/tex]
Thus, the probability that exactly 3 are hyperlipidemic is 0.2397.
(c)
Compute the expected number of children who would meet the criteria for hyperlipidemia as follows:
[tex]E(X)=np=12\times 0.30=3.6[/tex]
Thus, 3.6 children would be expected to meet the criteria for hyperlipidemia.
What is the base in the expression 4 superscript 5?
A)4 B)5 C)9 D)20
Answer:
A)4
Step-by-step explanation:
Expression 4 superscript pt 5=4^5
Answer:
A
Step-by-step explanation:
factor 5x^2 + 10x + 5
Turkey A: $10.35 for a 15lb
Turkey B: $11.80 for 20lb
Turkey C: $9.48 for 12lb
Determine which turkey would be best for you to buy. Find the unit price of each, then pick a turkey and explain why you choose that turkey.
light stand for knowledge in the poem
Answer:
light stand for knowledge in the poem
Step-by-step explanation:
Find all solutions to the system:
5x-3y=2,
15x+6y=6
Answer:
2/5 0
Step-by-step explanation:
Could you form a triangle either side lengths of 1 inch 2 inch and 3 inch
Answer:
no
Step-by-step explanation:
No, a triangle cannot be constructed with sides of 2 in., 3 in., and 6 in. For three line segments to be able to form any triangle you must be able to take any two sides, add their length and this sum be greater than the remaining side.
168 students enrolled in a freshman-level chemistry class. By the end of the semester, 5 times the number of students passed as failed. Find the number of students who passed.
Answer:
33.6
Step-by-step explanation:
can someone help me plsssss :( 20 ᴘᴏɪɴᴛs !
a.) m = -1
b.) m = 0
c.) m = undefined
d.) m = 1/2
Answer (bolded part is slope):
a.) y = -x + 2 (slope = -1)
b.) y = -2 (slope = 0)
c.) x = 3 (slope = undefined)
d.) y = [tex]\frac{2}{3}[/tex]x + [tex]\frac{3}{2}[/tex] (slope = 2/3)
What are 25 times by the same number then divide it by sixty
Michelle works in the mall and her hours increase during busy shopping times of the year. Michelle has a plan to
save $45 each week for 7 weeks, and then increase that amount by $30 for the next 8 weeks during the busy time,
then go back to $45 per week. If Michelle's plan is to save $1185, how many weeks total will she need to save?
Show your work
12
II
Answer:
The total number of weeks Michelle needs to save is 29.
Step-by-step explanation:
Michelle plans to save $1185 in a number of weeks to determine later.
In the first 7 weeks, she will save $45 each week for a total of
$45 * 7 = $315
In the next 8 weeks, she will save $30 each week for a total of:
$30 * 8 = $240
During these 15 weeks, she has saved
$315 + $240 = $555
She still has a remaining $1185 - $555 = $630 to save.
Those $630 will be saved in a number of weeks at $45 per week, thus the number of weeks is:
$630 / $45 = 14 weeks
Total weeks = 15 + 14 = 29
The total number of weeks Michelle needs to save is 29.
your company purchased a twelve-month insurance policy for $36,000 in January
whats the entry to record the monthly insurance expense in march
Answer:
Debit Insurance expense for $3,000
Credit Prepaid insurance for $3,000
Step-by-step explanation:
Before the recording entry, the monthly insurance expense has to be calculated first as follows:
Monthly insurance expense = Prepaid insurance / n ............. (1)
Where;
Prepaid insurance = Insurance policy amount = $36,000
n = number of months = 12
Substituting the values into equation (1), we have:
Monthly insurance expense = $36,000 / 12 = $3,000
Since the monthly insurance expense is $3,000, it implies that the insurance expense for March is $3,000.
the entry to record the monthly insurance expense in March will therefore look as follows:
Month Account Title DR ($) CR ($)
March Insurance expense 3,000
Prepaid insurance 3,000
(To record monthly insurance expense for March)
Ashley can run 12 miles in 2 hours. At this rate, how many minutes does it take Ashley to run 1 mile?
Answer:
10 minutes
Step-by-step explanation:
If you divide both sides by 2 you get 6 miles and 1 hour.
Divide it again by 2 and you get 3 miles and 30 minutes.
Divide that by 3 and you get 1 mile in 10 minutes.
Simplify (6x ^ 2 + 11x - 3) + (2x ^ 2 - 17x - 4) . (1 point)
1 ) 8x ^ 2 + 6x - 1
2) 8x ^ 2 - 6x - 7
3 ) 8x ^ 2 + 6x + 1
4 ) 8x ^ 2 - 6x + 7
Answer:
2) 8x^2 -6x-7 hope this helps
I neeed help plz 30 points
Quadrilateral NATS has coordinates N(-4, -3), A(1, 2), T(8, 1), and S(3, -4). Prove that quadrilateral NATS is a rhombus. Give your statement with the equal distances. Remember to identify the sides.
Answer:
Step-by-step explanation:
NA = √[(- 4 - 1 )² + (- 3 - 2)²] = 5√2
AT = √[(8 - 1 )² + (1 - 2)²] = 5√2
TS = √[(3 - 8 )² + (- 4 - 1)²] = 5√2
NS = √[(- 4 - 3 )² + (- 3 + 4)²] = 5√2
NA = AT = TS = NS = 5√2
[tex]m_{NA}[/tex] = (- 3 - 2) / (- 4 - 1) = 1 ........ (1)
[tex]m_{TS}[/tex] = (- 4 - 1) / (3 - 8 ) = 1 ......... (2)
From (1) and (2) ⇒ NA║TS
[tex]m_{AT}[/tex] = ( 1 - 2) / ( 8 - 1) = - 1 / 7 .......... (3)
[tex]m_{NS}[/tex] = ( - 4 + 3) / ( 3 + 4) = - 1 / 7 .... (4)
From (3) and (4) ⇒ AT║NS
Thus, NATS is rhombus.
Find the general solution of the given system. Use a computer system or graphing calculator to construct a direction field and typical solution curves for the system
Answer:
hello your question is incomplete attached below is the complete question and solution
answer : general solution ( X ) = [tex]C_{1} e^{3t} \left \{ {{1} \atop {-1}} \right. + C_{2} e^{3t} \left \{ {{1} \atop {-1}} \right.[/tex]
Step-by-step explanation:
attached below is the detailed solution to determine the general solution of the given system
general solution ( X ) = [tex]C_{1} e^{3t} \left \{ {{1} \atop {-1}} \right. + C_{2} e^{3t} \left \{ {{1} \atop {-1}} \right.[/tex]
1. A local pizzeria sold 70 pizzas yesterday.
(a) The owner offers the employees a bonus if the number of pizzas sold increases by 30% today. How many pizzas must the pizzeria sell for employees to receive the bonus?
2. A certain TV can be purchased from the manufacturer for $150. A certain online retailer has a standard markup of 30%, and a certain superstore has a standard markup of 40%.
(a) What is the price of the TV when purchased online?
(b) What is the price of the TV when purchased at the superstore?
3. You have saved $140 for a new pair of skis. They have a regular price of $189. They have been reduced by 30%. There is a 13% tax as well.
a. What is the discount?
b. What is the new price?
c. What is the tax?
d. What was the total price of the shoes, after the discount and tax?
e. Do you have enough money? Please explain in a complete sentence
Answer:
1. 91 = 70*1.30
2a. 195= 150*1.30
2b. 210 = 150*1.40
3a. 56.70 = 156* .30
3b. 132.30 = 156-56.70
3c. 17.20 = 132.30 *0.13
3d. 149.50 = 132.30+17.20
3e. You do not have enough money, because you need $9.50 more.
Step-by-step explanation:
good luck
Question 1:
70 x 1.30 is 91 - 70 is equal to 21 pizzas, they would have to sell 91 total pizzas, which is 21 more than what was sold the previous day
Question 2:
Both parts are solved below:
Step-by-step explanation:
Given:
Purchase price = 150
Part A
As the online trailer marks up 30% so the price would be:
= 150 + 30% of 150
=150 + 0.3(150)
= 150 + 45
Price online= $195
° ♡ ₒ ♡ °
Part B
As the superstore marks up the price by 40% so the price would be:
= 150 + 40% of 150
=150 + 0.4(150)
= 150 + 60
Price at superstore = $210
° ♡ ₒ ♡ °
Difference
Difference = price at superstore - price online
Difference = 210 - 195
Difference = $15
Difference in markup = 40% - 30% = 10%
So a 10% difference leads to the difference of $15 in price.
What is the value of the function at x=−2?
Answer:
y = 3
General Formulas and Concepts:
Reading a Cartesian PlaneReading and labeling coordinatesStep-by-step explanation:
The question is asking us what the y-value is when x = -2.
According to the graph, when x = -2, y = 3.
Therefore, y = 3.
Describe 3 types of maps
Answer:
population-amount of people per sq ft
climate- the average climate in that are
physical- elevation, landmarks,
Step-by-step explanation:
The price of one share of a stock fell 4 dollars each day for 8 days. How much value did one share of the stock lose after 8 days?
Answer:
After 8 days, the stock lost 32 dollars.
Step-by-step explanation:
If 4 dollars fell every day for 8 days, it would be 32 dollars because 4*8 is 32.
HELP PLEASE IM BEGGING YOU
Which equation is a point slope form equation for line AB?
Oy-3=2(x - 2)
Oy-6=2(x - 5)
Oy-5=2(x - 6)
Oy+2=2(x+3)
Answer:
y-6=2(x-5)
I hope this is good enough:
Anyone???
Mathematics
A farm lets you pick 3 pints of raspberries for $12.00.
a. What is the cost per pint?
b. How many pints do you get per dollar?
c. At this rate, how many pints can you afford for $20.00?
d. At this rate, how much will 8 pints of raspberries cost?
Answer:a.4 dollars per pint
b.4th a pint/ 1 cup per dolllar
c. 5 pints
d.32 dollars
Step-by-step explanation:
1. Solve 2x < 10. Explain how to find the solution set. I need help with this question.
whats 2+2 brainliest
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
Need HELP plz 45 points
Is there enough information to prove that the triangles are congruent?
If yes, provide the correct Triangle Congruence Postulate or Theorem and a congruence statement.
If no, justify your answer.
Answer:
They are equal and we can prove this using the AAS Congruence Postulate.
Step-by-step explanation:
HELP PLZZZ i need it plz