Hi there!
»»————- ★ ————-««
I believe your answer is:
4 students.
»»————- ★ ————-««
Here’s why:
Out of the 30 students, 1/3 of them play any type of sport.⸻⸻⸻⸻
[tex]30 * \frac{1}{3} =10[/tex]
⸻⸻⸻⸻
10 out of 30 students play sports. We need to find (2/5) of that for the people that play soccer.⸻⸻⸻⸻
[tex]10 * (2/5) = 4[/tex]
⸻⸻⸻⸻
Four students play soccer.»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
Definition: Another unit of measurement for angles. This one can be measured on the x-y coordinate
plane. The number of these in an angle equals the number of radii it takes to measure a circular arc
described by that angle.
Answer:
radians
Step-by-step explanation:
Another unit of measure for angles others then degrees are radians.
Answer:
radians
Step-by-step explanation:
A = {5, 6, 7, 8, 9, 10} and B = {2, 3, 4, 5, 11, 12, 13}. What is A∪B? What is A∩B?
Step-by-step explanation:
A U B= {2,3,4,5,6,7,8,9,10,11,12,13}
A n B= {5}
Help me (pre algebra by the way)
Answer:
A, D, & F
Step-by-step explanation:
When you distribute, you get 6a + 5a + 5 - 3a + 21.
After combining like terms, you get 8a + 26.
Lastly, all you have to do is figure out which expressions are equivalent to
8a + 26.
A) 8a + 26 = 8a + 26
D) 6a + 5a + 5 - 3a + 21 (combine like terms) = 8a + 26
F) 2(4a + 13) - Simple distribution
2 x 4a = 8a
2 x 13 = 26
2(4a + 13) = 8a + 26
If A/B and C/D are rational expressions, then A/B ÷ C/D = (AC)/(B/D)
true or false
9514 1404 393
Answer:
False
Step-by-step explanation:
(A/B) ÷ (C/D) = (A/B) × (D/C) = AD/(BC) ≠ AC/(B/D)
If you know how to solve this, Please answer it. Thank You
Please show your work and the steps.
The first one to answer the question right, will get Brainlist!
I PROMISE!!!!!
Answer:
Step-by-step explanation:
Work done by Kayla in 1 hour = 1/15
Work done by Jennifer in 1 hour = 1/16
Work done by both Kayla and Jennifer = [tex]\frac{1}{15}+\frac{1}{16}[/tex]
[tex]= \frac{1*16}{15*16}+\frac{1*15}{16*15}\\\\=\frac{16}{240}+\frac{15}{240}\\\\=\frac{31}{240}\\[/tex]
Hours taken by both = 240/31 = 7 23/31 hours
The mean salary at a local industrial plant is $26,500 with a standard deviation of $5000. The median salary is $27,200 and the 57th percentile is $30,400. Based on the given information, determine if the following statements are true or false.
a. Approximately 7% of the salaries are between $26,500 and $30,400.
b. The percentile rank of $25,400 is 50.
Answer:
a. False.
b. False.
Step-by-step explanation:
Statement a:
The median salary is $27,200 and the 57th percentile is $30,400.
Thus, 57-50 = 7% of the salaries are between $27,200 and $30,400, that is, not between $26,500 and $30,400, and thus, statement a is false.
b. The percentile rank of $25,400 is 50.
The median salary is $27,200, and thus, the percentile rank of $27,200 is 50, and the percentile rank of $25,400 is less than 50, and this statement is false.
Open with Angles p and q are complementary, p is four times the size of q. What is the size of q ?
Answer:
p = 72
q = 18
Step-by-step explanation:
Complementary means they add to 90o
p + q = 90
p = 4*q
Substitute 4q for p
4q + q = 90 Combine
5q = 90 Divide by 5
5q/5 =90/5
q = 18
p = 4q
p = 4*18
p = 72
Factor 21a–27.
........................................
Answer:
3(7a - 9)
Step-by-step explanation:
21a–27
3*7*a - 3*9
Factor out 3
3(7a - 9)
Answer:
3(7a-9)
Step-by-step explanation:
The greatest common factor between 21a and 27 is 3. Hope this helps!
help if you can! no links please :)
Answer:5/12
Step-by-step explanation:
Find the distance between the two points. Round to the nearest tenth if necessary. (0, 7), (–12, –2)
Answer:
Distance = 15 units
Step-by-step explanation:
[tex]Let \ (x_1 , y_ 1 ) = ( 0 , 7 ) \ , \ (x _ 2 , y _ 2 ) \ = ( -12 , -2 ) \\\\Dsitance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1 )^2} \\\\[/tex]
[tex]= \sqrt{(-12 - 0)^2 + ( -2 - 7)^2} \\\\=\sqrt{12^2 + 9^2 }\\\\=\sqrt{144 + 8 1} \\\\= \sqrt {225 } \\\\= 15[/tex]
Answer:
( 12 , - 10 )
Step-by-step explanation:
Difference between the x points : 0 - ( - 12 ) = 12
Difference between the y points : - 12 - ( - 2 ) = -10
There fore the difference ( 12 , - 10 )
Hopefully this is what you mean
Have a nice day !
Question 4 of 25 There are 6 brooms and 4 mops in a janitor's closet. What is the ratio of the number of brooms to the number of mops? 3/5
Answer:the ratio of brooms to mops is 3:2
Step-by-step explanation:
6:4 can be simplified to 3:2
Answer:
6:4
Step-by-step explanation:
also can be simplified 3:2
help me pleaseeeeeee
Answer:
C
Step-by-step explanation:
18 x 5.85 = 105.3
105.3 is closest to the estimate of $120
The measure of angle NOP is 140
Which of the equations could be used to find the measure of angle NOQ?
Answer:
a) 23 + x = 140
Step-by-step explanation:
140 - 23 = 117
the angle x = 117°
The number of road construction projects that take place at any one time in a certain city follows a Poisson distribution with a mean of 6. Find the probability that less than 3 road construction projects are currently taking place in this city.a) 0.050409b) 0.089235c) 0.301168d) 0.014936
Answer:
The probability that less than 3 road construction projects are currently taking place in this city is 0.06197
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
In which
x is the number of sucesses
e = 2.71828 is the Euler number
[tex]\mu[/tex] is the mean in the given interval.
Poisson distribution with a mean of 6.
This means that [tex]\mu = 6[/tex]
Find the probability that less than 3 road construction projects are currently taking place in this city.
This is:
[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2)[/tex]
So
[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]
[tex]P(X = 0) = \frac{e^{-6}*6^{0}}{(0)!} = 0.00248[/tex]
[tex]P(X = 1) = \frac{e^{-6}*6^{1}}{(1)!} = 0.01487[/tex]
[tex]P(X = 2) = \frac{e^{-6}*6^{2}}{(2)!} = 0.04462[/tex]
[tex]P(X < 3) = P(X = 0) + P(X = 1) + P(X = 2) = 0.00248 + 0.01487 + 0.04462 = 0.06197[/tex]
The probability that less than 3 road construction projects are currently taking place in this city is 0.06197
lim (x->0) ((x^3 - 2x) ln(1+sinx))/ ln(cos 3x)
Answer:
qijejejsllaoajvrjaoaq
help please ............
Answer:
A is the Far Left
B is the Base
C is the Hypotenuse
Step-by-step explanation:
Interpretation
In a class of 35 students 1/5
of total students like to play cricket, 2/5 of students like to play football, remaining students like to play volleyball
i) How many students like to play cricket
ii) How many students like to play football?
iii) How many students like to play volleyball?
if you answer correctly you wil get brainliest plus 10 points
if you give wrong answer your wrong answer will be reported
only people who know maths well can give correct answer.
Good luck
Answer:
7 play cricket
14 play football
21 play volleyball
Step-by-step explanation:
Solve each of the following equations by the trial and error method : A) X- 7= -3 help some one now
Answer:
X - 7 = - 3
X = - 3 + 7
X = 4
the 7 turns positive because it was moved to the other side of the symbol "=" so we reverse the sign
- becomes +
and
+ becomes -
HELP DUE RIGHT NOW
will mark brainliest!
10 points
if I choose two cards, one of the time, from a standard deck of cards, what’s my probability that I choose A red card, then without putting it back to a black card
Answer:
P(Red) = 26/52, P(Black) = 26/51
Step-by-step explanation:
There are 26 red cards and 26 black cards in a standard deck of 52 cards.
This means the probability of picking a red card from the deck is 26/52.
Now, since we are taking out the red card after drawing from the deck, we only have 51 cards. Therefore, the probability of picking a black card from the deck is 26/51.
Write the equation of the line that has a slope of 2 and passes through the point (-5, 1).
y = 2x - 5
y = 2x + 11
y = 2x + 1
y = 2x + 9
Step-by-step explanation:
= 2x +b
Use the given point (2, 5)
5 = 2(2) +b
b = 5 -4 = 1
The equation of the line is
y = 2x +1
Note general form of the slope-intercept form of a line is y = mx +b, where m is the slope and b is the y-axis intercept
Plsssss ans plssss plssss
Answer:
a 3² +4² = 25 the factors are 5²
b 8²+6²= 100 the factors are 5²and 2²
c 12²+5²= 169 the factors are 13²
d 8²+15²= 289 the factors are 17²
Classify each triangle as right triangle or not right triangle
Answer:
Step-by-step explanation:
pythagoras theorem
a^2+b^2=c^2
21^2+20^2=29^2
441+400=841
841=841
since the sum of square of two smaller sides is equal to the square of longest side .The given triangle can form right angle.
13 Calculate the area of a circle with radius 14 cm.
Answer:
[tex]{ \tt{formular : {area = \pi {r}^{2} }}} \\ area = 3.14 \times {14}^{2} \\ \\ { \bf{answer : { \tt{area = 615.75 \: {cm}^{2} }}}} \\ \\ { \underline{ \blue{ \tt{⚜becker \: jnr}}}}[/tex]
Answer:
A≈ 615.75 [tex]cm^{2}[/tex]
Step-by-step explanation:
A= [tex]\pi[/tex][tex]r^{2}[/tex]
A= [tex]\pi[/tex]·[tex]14^{2}[/tex]
A≈ 615.75216 [tex]cm^{2}[/tex]
Pls write answer as soon as possible
Answer:
Step-by-step explanation:
11.-3(2x-8)=-12
-6x+24=-12
-6x=-12-24
x=-36/-6
x=6
12.4(6+2x)=0
24+8x=0
8x=0-24
x=-24/8
x=-3
13.3x+2x+6=-15
5x+6=-15
5x=-15-6
x=-21/5
14.4=-2(x+3)
4=-2x-6
4+6=-2x
10/-2=x
-5=x
15.27=46+2x-x
27=46+x
27-46=x
-19=x
Answer:
11. -6
12. -3
13. 4.2
14. -5
15. -19
Step-by-step explanation:
Check the pictures. Would take too long for me to type it all out.
Please help! Image attached!
Number 1 is 5y = 50
Number 2 is h = 7
Number 3 is multiplication
Number 4 is addition
The distance a cargo ship travels is proportional to time. In 2 hours, the ship travels 53 miles. The relationship between distance and time can be represented as y = kx, where x is the time, in hours, and y is the distance, in miles. What is the value of k for this ship?
Answer:26
Step-by-step explanation:
The reason i got 26:
-we substitute the letters(variables) and have 52=(k)2
but what is k? k is y divided by x (just like y is k times x)
you can play one game for free. Which game has a higher expected value:
a. a 0% chance of winning $1,000
b. a 10% chance of winning $50
c. a 100% chance of winning $1
d. a 25% chance of winning $100
i will give brainliest please i need help its a middle school question
9514 1404 393
Answer:
33 pounds per weekW = 33t + 42Step-by-step explanation:
The pumpkin gained 372 -141 = 231 pounds in 7 weeks, or an average of ...
(231 lb)/(7 wk) = 33 lb/wk
The pumpkin gained 33 pounds per week.
__
In the 3 weeks after the pumpkin plant was chosen, it would have gained 3×33 = 99 pounds. It weighed 141 pounds at that point, so must have had an initial weight of 141 -99 = 42 pounds at t=0. The weight of the pumpkin can be modeled as ...
W = 33t +42
Malaria is a leading cause of infectious disease and death worldwide. It is also a popular example of a vector-borne disease that could be greatly affected by the influence of climate change. The scatterplot shows total precipitation (in mm) in select cities in West Africa on the x axis and the percent of people who tested positive for malaria in the select cities on the y axis in 2013. Precipitation is the __________ variable
Answer:
independent and explanatory
Step-by-step explanation:
In a study, an independent variable may be defined as the variable that does not affect the other variables in the study when it is changed. Thus a variable is said to be independent when it is not affected by the any other variable in the study.
Whereas, an explanatory variable can be manipulated or changed by the experimenter. It is the variable that is not independent for certain variables.
Thus in the context, the scatterplot showing the total precipitation and the percent of the people who tested positive for the malaria test. The precipitation from the graph is the independent as well as the explanatory variable.