Step-by-step explanation:
A:x=5-7
x=-2
B:x=-16+2
x=-14
l have answered only A and B
Estimate the difference of the decimals below by rounding to the nearest whole number. 23.827
- 1 .218
Step-by-step explanation:
The key rule is: to round up the number one digit to the left has to be the number 5 or more, else it rounds down.
23.827 rounds up because the 8 is more than 5.
1.218 rounds down because 2 is less than 5.
24-1= 23
Beth wants to determine a 99 percent confidence interval for the true proportion pp of high school students in the area who attend their home basketball games. Out of nn randomly selected students she finds that that exactly half attend their home basketball games. About how large would nn have to be to get a margin of error less than 0.01 for pp
Answer: 16590
Step-by-step explanation:
Let p be the population proportion of high school students in the area who attend their home basketball games.
As per given,
prior p = 0.5
Margin of error E= 0.01
Criticfor z-value for 99% confidence = 2.576
Sample size will be computed as
[tex]n=p(1-p)(\frac{z^*}{E})^2\\\\ n= 0.5(1-0.5)(\frac{2.576}{0.01})^2\\\\=0.25(257.6)^2\\\\=0.25 (66357.76)\approx16590[/tex]
Hence, required sample size = 16590
Sale! 10% OFF
of the original price!
The original price of a ticket to an amusement park is $60. What is the sale price?
Find the height of the pyramid.
Answer:
7
Step-by-step explanation:
Let the height of pyramid be h
[tex]v = \frac{1}{3} lwh[/tex]
v= 224
w= 8
l= 12
224=1/3(12)(8)(h)
224=32h
h=224/32
h=7
A bag contains tickets numbered 1 through 5. Use the probability distribution to determine the probability of drawing an odd numbered ticket.
The probability of drawing an odd numbered ticket is __ %
Answer:
The probability of drawing an odd numbered ticket is 60%.
Step-by-step explanation:
Odd numbered tickets:
Probability of one is 1/5 plus half of 1/5.
[tex]P(X = 1) = \frac{1}{5} + \frac{1}{10} = \frac{3}{10}[/tex]
Probability of 3 is half of 1/5.
[tex]P(X = 3) = \frac{1}{10}[/tex]
Probability of 5 is 1/5. So
[tex]P(X = 5) = \frac{1}{5}[/tex]
Probability of drawing an odd numbered ticket:
[tex]p = P(X = 1) + P(X = 3) + P(X = 5) = \frac{3}{10} + \frac{1}{10} + \frac{1}{5} = \frac{4}{10} + \frac{2}{10} = \frac{6}{10} = 0.6[/tex]
0.6*100% = 60%
The probability of drawing an odd numbered ticket is 60%.
La aparición de la escritura mara el fin de la prehistoria y el inicio de la historia
verdadero o falso
Answer:
Verdadero
Step-by-step explanation:
le A right triangle has a hypotenuse of 10m and a leg of 5m. What is the length of the second leg? Round to the nearest tenth.
Answer:
Length of 2nd leg is 8.7m.
Step-by-step explanation:
a^2 + b^2 = c^2
Substitute.
5^2 + b^2 = 10^2
Solve.
25 + b^2 = 100
100 - 25 = 75
sqrt(75) = 8.66
Round.
8.66 ---> 8.7.
Need help with this question 20 points
Answer:
As x → ∞, f(x) → ∞
As x → -∞, f(x) → 3
Step-by-step explanation:
This question is asking for the end behavior of the graph. In this case, as x increases f(x) also increases; therefore, they both approach positive infinity at the same time. Additionally, the horizontal asymptote of the graph is 3. This means that as x approaches -∞, f(x) will approach the asymptote, 3.
QUICK FOR 10 POINTS
Jeremiah has 20 pencils. He has 4 more than 2
times the number of pencils that Jada has.
Exactly how many pencils does Jada have?
*no links please*
Answer:
8 pencils
Step-by-step explanation:
We can reverse everything that is happening in the problem like this!...
Jeremiah has 20 - 4 pencils = 16 than 2 reverse operation of multiplication which will be division then 16 ÷ 2 = 8
Check work? 8 more than 2 times equals 16 + 4 more that Jeremiah has equals 20 pencils
Tienes $20 para gastar en la tarifa del taxi. El viaje cuesta
$5 más $2.50 por kilómetro.
Escribe una desigualdad para determinar la distancia
en kilómetros, d, que podrías recorrer por $20.
¿Cuál es la distancia máxima, en kilómetros, que
puedes recorrer por $20?
kilómetros.
Answer:
6 kilometers serian15 mas 5
What’s the answer and how do you figure these out?
Answer:
140
Step-by-step explanation:
20x+60=30x+20
40=10x
x=4
and
20x+60
20*4+60
=140
HELLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP
Five friends take a maths test
Adam, Brandon, Chen together scored 200 marks
Brandon, Chen and Damion together scored 215
Chen, Damion, Erica together scored 224
Damion and Erica scored more than Chen
The five of them together scored 350 marks
What are their individual scores?
Answer:
Adam scored 60, Brandon scored 66, Chen scored 74, Damion scored 75, and Erica scored 75.
Step-by-step explanation:
Since five friends took the maths test, and Adam, Brandon, and Chen together together scored 200 marks; Brandon, Chen and Damion together scored 215; Chen, Damion and Erica together scored 224; and Damion and Erica scored more than Chen; While the five of them together scored 350 marks, to determine what are their individual scores the following calculations must be done:
Adam + Brandon + Chen = 200
Damion + Erica = 150
Brandon + Chen + Damion = 215
Adam + Erica = 135
Chen + Damion + Erica = 224
Adam + Brandon = 126
Adam + Brandon = 126 + Chen = 200
Chen = 200 - 126
Chen = 74
Damion and Erica scored more than Chen
Chen + Damion + Erica = 224
74 + Damion + Erica = 224
Damion + Erica = 150
Damion = 75
Erica = 75
Brandon + Chen + Damion = 215
Brandon + 74 + 75 = 215
Brandon = 215 - 74 - 75
Brandon = 66
Adam = 350 - 75 - 75 - 74 - 66
Adam = 60
Therefore, Adam scored 60, Brandon scored 66, Chen scored 74, Damion scored 75, and Erica scored 75.
HELP ASAP!! 50 POINTS!!!(picture included) What are the solutions to the system of equations?
Sy = 2:2 - 4x + 8
y=-22 +11
(-1,3) and (5, 13)
0 (-1, 13) and (3,5)
0 (-1, 1) and (-5, -13)
O (1,5) and (3, 13)
Answer:
B. (-1, 13) and (3, 5)Step-by-step explanation:
Solve by elimination:
x² - 4x + 8 = -2x + 11x² - 2x = 3x² - 2x + 1 = 4(x - 1)² = 2²x - 1 = 2 ⇒ x = 3x - 1 = -2 ⇒ x = -1Find values of y:
y = -2(3) + 11 = 5y = -2(-1) + 11 = 13The pairs are:
(3, 5) and (-1, 13)Correct choice is B
Helpppppppppppppppppp
Answer: tbh i think 20
Step-by-step explanation:
The original cost of a laptop computer was x dollars. The expression 0.36 represents the value of the laptop today. Choose two expressions that also represent the value of the laptop today.
A. 1-0.64
B x-0.36
C. X-0.64
D. X(1 - 0.36)
E. X(1- 0.64)
Answer:
b and e
Step-by-step explanation:
b is easy: its the cost of the laptop times 0.36
e is a bit more complicated- its 1 minus 0.64 giving you 0.36 and then its just the same problem as b from there
The tallest man alive today is 8 feet 3 inches. How tall is he in inches?
Answer:
99 inches
It should be correct, you can try and double check with goo gle though.
Answer:
99
Step-by-step explanation:
1 foot = 12 inches
12 × 8 = 96
96 + 3 = 99
99
A jacket that normally sells for $160 is on sale for 25% off. What is the sale price of the jacket?
○ $40
○ $120
○ $135
I need the answer pls HELP
Answer:
14.526
Step-by-step explanation:
10.348+4.178=14.526
Answer:
The width of both boxes combined should be
10.348 + 4.178 = 14.526in
Tessellations
Determine whether the following regular polygon tessellates the plane.
Square
a. yes; measure of interior angle = 90
b. no; measure of interior angle = 90
c. yes; measure of interior angle = 45
d. no; measure of interior angle = 45
Please select the best answer from the choices provided
Answer:
A. Yes; measure of interior angle = 90
Step-by-step explanation:
I calculated it logically
What’s -7 and 2/3 plus -5 and 1/2
Answer:
[tex]-13\frac{1}{6}[/tex]
Step-by-step explanation:
[tex]-7\frac{2}{3} +(-5\frac{1}{2})[/tex]
[tex]-7\frac{2}{3} -5\frac{1}{2}[/tex]
[tex]-\frac{23}{3} -\frac{11}{2}[/tex]
Prime factorization of the numbers:
3 = 3 × 1
2 = 2 × 1
LCM of (3, 2) = 6
2 × 3
= 6
[tex]-\frac{79}{6}[/tex]
[tex]-13\frac{1}{6}[/tex]
Solve for X
8 + x = 15
a letter to PTA chairman about school problems
Answer:
Dear Chairman/or MR.?….
Re: Concerns regarding insanitary conditions/health of children
I would be grateful if you could let me have the latest Minutes of PTA Meetings particularly if they relate to the health of young people as it relates to the lack of proper cleaning and the general insanitary conditions in the toilets and areas where food is consumed by children
Whilst l am aware that schools are always short of cash for what may be regarded as non-essentials, l would like the opportunity to discuss with you my ideas on dealing with this very important aspect of basic hygiene, cleanliness and education if it is found to be that the insanitary conditions are such which young people themselves may be partly responsible. If funds are needed for the purchase of specific items l have suggestions as to the raising of funds for these.
I look forward to hearing from you as a matter of urgency.
Yours sincerely,
, if addressed by name/ faithfully, if not by name,
Step-by-step explanation:
29x-7y=-17 solve for x
Answer:
[tex]x= -\frac{17}{29} +\frac{7y}{29}[/tex]
Step-by-step explanation:
[tex]29x-7y=-17[/tex]
[tex]x= -7y/29 + -17/29[/tex] Divide every number by x except
Three stores have the same mp3 player
for sale. The regular price of the player is
$50. Store A is offering the player on sale
at 15% off the regular price. Store B is
offering a $10 coupon to be deducted
from the regular price. Store C is offering
a rebate of $7.50 to purchasers. Which
store is offering the mp3 player at the
lowest cost?
A Store A
B Store B
C Store C
Store A and Store C
Answer: Store C
Step-by-step explanation:
Store A is giving 15% off. 15% of 50 is 7.5.
50 - 7.5 = 42.5
Store B $10 dollar coupon.
50 - 10 = 40
Store C is offering $7.50 back.
50 - 7.50 = 42.5
Answer is store c
Store c is giving you $10 off where the other two stores are just give you $7.50.
Hope this helps.
Solve the proportion: 144/a = 9/4
a=?
Step-by-step explanation:
eieueskhdbdjsikskskskjswhwjw
It is random outfit day. You have 3 tops: green, white, and yellow. You have 2 pairs of pants: blue and black. You have 2 pairs of shoes: boots and sandals. What is the probability that you will wear a green shirt with blue pants and boots
Answer:
1/12
Step-by-step explanation:
Probability is the ratio of the number of possible outcome to the number of total outcome.
Given that you have 3 tops: green, white, and yellow, the probability of you wearing a green shirt p(g)
= 1/3
since you have 2 pairs of pants: blue and black, the probability of you wearing a blue pant p(b)
= 1/2
And you have 2 pairs of shoes: boots and sandals, the probability of you wearing a pair of boots p(bo)
= 1/2
Hence the probability that you will wear a green shirt with blue pants and boots
= 1/3 * 1/2 * 1/2
= 1/12
All of the following are examples of essay types that colleges typically aska student to write except O A. essays about you. B. essays about a specific topic, C. essays about work experience, D. essays about your college choice.
Answer: C. essays about work experience
Step-by-step explanation: I would chose C because when you apply for a job you are asked to write and an essay on your work experience. But in college, you are no applying for a job.
A jar contains 6 red marbles numbered 1 to 6 and 4 blue marbles numbered 1 through 4. A marble is drawn at random from the jar. Find the probability of the given event as a simplified fraction.
A. The marble is red
b. The marble is odd-numbered
c. The marble is red and odd-numbered
GWF maintains a portfolio of 1000 shares of firm A worth $15/share and 3000 shares of firm B worth $10/share. You expect a return of 4% for stock A and a return of 9% for stock B. Calculate the Portfolio value.
Answer:
zwkwzdhkjzjjhhdkjhzkhjhjhdhkjzhkjhkzj
Step-by-step explanation:
For a is 1000 ×15= 15000. Then 15000 ×4%+15000=15600
For b 10 ×3000 = 30000 the. 30000×9%+30000=32700. 2700 +600= 3300 return total value
RIGHT ANSWER WILL RECEIVE BRANLIEST, FIVE STARS, AND A THANKS
What effects do outliers have in the measures of central tendencies? Which measure would be the best to use?
Answer:
See below.
Step-by-step explanation:
An outlier can affect the mean by a lot. For example, if my neighbor moves out and Bill Gates moves in (he would be a super outlier!), the mean annual income would increase enormously.
The median, on the other hand, would not change at all. The income in the middle is still the income in the middle; Gates' income would not budge the median.