Answer:
1. 3.6723912745
2. 0.4545678933
3. 4.1269591678
Step-by-step explanation:
A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of the following statements is true about the sample?
a It is not a valid sample because it is only a short study.
b It is a valid sample because money is offered to participants.
c It is a valid sample because the first 10 people were selected to participate.
d It is not a valid sample because it is not a random sample of the population.
Answer:
A. it's not valid sample because it is only a short story...................................Find the value of x.
Evaluate the expression for x = 29.
Can someone help me with this question
pls help me find the volume of the triangular prism
Let's find the area of the triangle first:
2 x 5 = 10, 10 divided by 2( x 1/2 ) = 5
5 x 4(width) = 20
Formula of area of a Triangle:
BH x 1/2
(base) x (height) x 1/2(basically just dividing by 2)
What is the probability of landing on A then a C?* First Spin Second Spir С C E A B A DC
Answer:
Probability of landing on A: 25% chance
Probability of landing on C: 37.5% chance
Step-by-step explanation:
A. There are 2 A’s out of 8 letters which gives us a fraction of 2/8.
2/8 = 1/4 = 0.25 = 25%
C. There are 3 C’s out of 8 letters which gives us a fraction of 3/8.
3/8 = 0.375 = 37.5%
Hopefully this helped, good luck!
help
p.s im sorry for the Carl Wheezer with a dumptruck i just felt y'all needed to see
OUR GOD
The legs of a right triangle are 15 feet and 18 feet long. What is the area of the triangle?
Answer:
135
Step-by-step explanation:
Well, this is easy!
We just have to remember the formula!
L*W*1/2
We get 270/2.
This equals 135!
210 students were asked whether they want to go to a water park or a roller skating rink for a class party. 50 students are girls who want to go to the water park. 45 students are girls who want to go skating. 60 students are boys who want to go to the water park. Answer the questions to analyze the data. 1. Use the given information to fill in the two-way table. ‘a Water park Skating Total Boys 60 55 115 Girls 50 45 95 Total 110 100 210 2. How many boys want to go skating? 55 3. To the nearest hundredth, what is the relative frequency of boys who want to go to the water park? 4. The probability that a student is in a category can be approximated by the relative frequency. To the nearest hundredth, what is the probability that a randomly selected student is a girl who wants to go skating? Show how you know. 5. Are there more boy students or girl students? Do you read this information from the joint frequencies or the marginal frequencies? Explain how you know. 6. Which destination is more popular, the skating rink or the water park? Explain how you know.
Could someone help me figure out how to do the problem anyway like not answer just how to do it cause that's what I really wanted? Someone to help me work out the problem or like an example problem so I know how to do the problem. The problem is from the previous question I added
Wait what was the previous problem? I need that and then I can try to help. ;D
Annika weighed boxes for shipping
books to customers. The first box
weighed 160 ounces, the second box
weighed 10 pounds, and the third box
weighed ton. Which box weighed
200
the most?
Answer:
The box which weights a ton.
Step-by-step explanation:
Ounces are smaller than pounds, and pounds are smaller than a ton.
Answer:
The third box weighed the most.
Step-by-step explanation:
Tons weigh a lot more than pounds and ounces.
I'm 13 with learning disabilities can someone um help me with this
You have been reflecting about your relationship with math. How can thinking about yourself as a learner help you become a better student?
HELP PLEASE I WILL GIVE BRAINLIEST!!
PERIMETER AND AREA
PLZ SHOW WORK
Answer:
perimeter= p1+p2 +p3+p4=add all sides.
area =l×b=
(10m×14m)= 140m
Answer:
Perimeter = 33.4248cm
Area = 29.42478cm²
Step-by-step explanation:
Perimeter = half circle + rectangle length + radius + 90degree section + rectangle length + radius
radius of the circles = (14 - 10)/2 = 2
Perimeter = 2π + 10 + 2 + π + 10 + 2
Perimeter = 3π + 24 = 33.4248cm
Area = half circle + rectangle + quarter circle
Area = π(2)²/2 + 10×2 + π(2)²/4
Area = 29.42478cm²
solve for x:
[tex]\frac{x}{12} - 6=-5[/tex]
Answer:
x = 12
Step-by-step explanation:
add 6 to each side first to get:
x/12 = 1
cross-multiply to get:
x = 12
Need help, Iĺl give brainliest <3
Step-by-step explanation:
djjddjd dndbbdbsjsbsbsnsns
F r e e points if you can answers these questions. Get 4 or the most question correct and ill mark brainliest.
Answer: I got this-...
Step-by-step explanation:
11. The fifty foot ladder was set up at almost horizontal angle, she could be halfway on her fall.
12. A secret
13. Envelope
14. Nowhere, because they are "survivors"
15. She sleeps at night
16. 20 hours
17. They were all married, that's why there was no one "single"
18. 6 apples
19. Add a 'g' to 'one' and its 'gone'
20. Light the match first
PLEASE HELP ME NEED IT ASAP
One day, a pet supply store selected every 20th person on a customer list and asked each how many dogs he or she had at home. Ten persons were asked in all.
Number of dogs at home: 2, 1, 3, 2, 2, 1, 4, 0, 1, 4
What is an estimate of the mean number of dogs in a customer’s home?
Enter your answer in the box.
# dogs
Answer: Hey, the answer is 2 dogs
Step-by-step explanation:
"Mean" means Average and these problems are easy to solve I promise there are ten numbers listed add all of them together 2+1+3+2+2+1+4+0+1+4 That will add up to 20 you divide 20 by ten because there are ten numbers. There are good videos about this on Khan academy for median, mode, and mean which I assume is the unit you're on. :)
What is the value of C ?
Rewarding brainly and if you dont look for a unanswered question i posted or lmk if you want me to post one (NOT THIS ONE)
Answer:
L
Step-by-step explanation:
Pls mark me brainliest.
Answer:
Point L
Step-by-step explanation:
Point L is located at x, the horizontal coordinate, -3, 3 to the left, and is 0 units up/down, on the y coordinate.
x coordinate ALWAYS comes first, unless you're doing slope
Janet can make 1/2 of a necklace in 20 minutes. At this rate, how many necklaces can Janet make in 2 hours?
Answer:
3 necklaces
Step-by-step explanation:
2 hours = 120 minutes
1 necklace in 40 minutes
120/40 = 3
3 necklaces
Answer:
3 necklaces
Step-by-step explanation:
2 hours needs to be in the same units as the 20 minutes
2 hours = 2 * 60 minute = 120 minutes
Now we can use ratios to solve
1/2 necklace x necklaces
-------------------- = ----------------
20 minutes 120 minutes
Using cross products
1/2 * 120 = 20x
60 = 20x
Divide by 20
60/20 = 20x/20
3= x
What part of 1hr and 40 min is 25 min as a fraction?
Step-by-step explanation:
1 hour = 60 minutes
40 minutes out of an hour can be written as: 40/60
Fraction = 40/60
= (2 × 30) / (3 × 20)
Canceling out common factors of numerator and denominator, we get 2/3
Therefore, 40 minutes is 2/3 of an hour.
I will appreciate a quick answer please.
Factorize all of the following
Answer:
(s+16)(s-16)
Step-by-step explanation:
s^2-256
s^2-(16)^2
a^2-b^2= (a+b)(a-b)
(s+16)(s-16)
Answer:
1. 5 ( − 6 ) 2
2. (−16)(+16)
3. ( 7q-3r) ^2
Step-by-step explanation:
5a^2 - 60a + 180 we factor 5 as multiple of a alone (outside of brackets)
Then we keep the common a with its number as 180 doesn't share a
Then we look solely for two numbers that add up to 60 and multiply to 180
We show in the first line what we found and then continue to factor the square of a in format of 5a^(2) and format of -6a-6a to find 5(a2−6a−6a+36) like below until its completed in factored form - 6 -6 would multiply to find +36 and -6-6 subtracts to find -12.
5a^2 - 60a + 180
5( ^ 2 − 1 2 + 3 6)
5 ( ^ 2 − 6 − 6 + 3 6 )
5(a^{2}-6a-6a+36)
5(a2−6a−6a+36)
5 ( ( − 6 ) − 6 ( − 6 ) )
5 ( − 6 ) ( − 6 )
5 ( − 6 ) 2
2.
s^2 - 256
2 + 1 6 − 1 6 − 2 5 6
(+16)−16(+16)
(−16)(+16)
3.
49q^2 + 42qr + 9r^2
(7q )^2 + (7 x 6 + qr) + 3r^2 like by like = 7q and 3r as 3+3 = 6 when squared is our factor outside of brackets and we notice that 6 is not squared in rule.
( 7q-3r) ^2
Can someone please help me
Hurry Need Help I Will Give Brainliest!!
Congruent is the answer
Vivian divides the total amount of money she has evenly between her three children. Each child receives $8.84. Let m be the total money that Vivian has. Write an equation involving m and solve it for the total amount of money that Vivian has (or had).
Answer:
m/3=8.84
3(m/3)=3(8.84)
m= $26.52
Step-by-step explanation:
(Middle school math) please help, just for letter a. Thank you.
Answer:
She can wear the blue pair with all three shirts and jackets
She can wear the black pair with all three shirts and jackets
She can wear the brown pair with all three shirts and jackets
Sorry if it is wrong
What is the total weight in ounces of the three heaviest boxes?
Please help me worth branliest chart and answer choices on picture tysm if u help
Answer:
D. 252 ounces
Step-by-step explanation:
The number line is cut in fourths. The 3 heaviest boxes are, 1 between 4 and 5 lbs, and 2 boxes between 5 and 6.
1st box: 4.75 lbs
2nd box: 5.5 lbs
3rd box: 5.5 lbs
Total lbs: 15.75 lbs
15.75 pounds= 252 ounces
What is the value of K ?
[tex] k + 60° = 180° [/tex] (linear pair)
⇒ [tex] k = 180° - 60° [/tex]
⇒ [tex] k = 120° [/tex].
Answer:
Step-by-step explanation:
k= 180-69
k= 120 degrees
please help!! giving brainlest if explained ??!