Answer:
[tex]\frac{5}{8}[/tex] and 62.5%
Step-by-step explanation:
5/8=0.625
when converting a decimal to a percentage you just move the decimal point over to the right twice so it would be 62.5%
help plzzzzzz!!!!!!!
Which of these is an example of a random sample?
A.
Customers buying a new cell phone are surveyed about cell phone plans.
B.
A phone plan company surveys people on the beach to see how well they are receiving service, and uses this information in future advertising.
C.
Every twentieth caller to an independent radio station receives tickets to a concert.
D.
A phone survey is conducted using twenty names randomly taken from the phone book.
Helpppppppppppppppp
Answer:
tjrjrkrkrkrkurjrjrjrjrnr s jkalsmrnrnd
How to add fraction 3/7+ 3/9=
[tex] \large \sf \pink{Answer: }[/tex]
[tex] \large \purple{ \boxed{ \frac{16}{21}}}[/tex]
[tex] \large \sf \pink{Explanation:}[/tex]
[tex] \sf \large{ \frac{3}{7} + \frac{3}{9}}[/tex]
[tex] \sf \large{ \frac{3}{7} + \frac{1 \times 3}{3 \times 3}}[/tex]
[tex] \sf \large{ \frac{3}{7} + \frac{1}{3}} [/tex]
[tex] \sf \large\frac{3 \times 3}{21} + \frac{1 \times 7}{21}[/tex]
[tex] \sf \large{ \frac{9}{21} + \frac{7}{21}}[/tex]
[tex] \sf \large{ \frac{(9 + 7)}{21}}[/tex]
[tex] \sf \large \purple{ = \frac{16}{21}}[/tex]
besties if your looking for 50+ points and brainliest plz answer this correctly thanks
A television news program asks its viewers to call in to give their opinions on an upcoming ballot question. What type of sampling method does this represent?
Answer:
This is an example of self selecting sampling
Step-by-step explanation:
This is an example of self selecting sampling because the news program is asking viewed to give their opinions. The viewers themselves have a choice of participating in the sample therefore is self selecting.
The black line is a graph of y=x. Which of these equations could represent the blue line
Answer:
third option
Step-by-step explanation:
y = 1/2 x
Can I get help with this???
Answer:
168
[tex]3 \times 4 \times 10 + 3 \times 4 \times 4[/tex]
Brenda’s school is selling tickets to a spring musical. On the first day of ticket sales the school sold 6 adult tickets and 9 child tickets for a total of $108. The school took in $111 on the second day by selling 9 adult tickets and 5 child tickets. What is the price of each type of ticket?
Answer:
42 dollars
Step-by-step explanation:
Points D and E are midpoints of the sides of triangle
ABC. The perimeter of the triangle is 48 units.
What is the value of t?
2
3
6
8
*ANSWER IS 2 just took the test*
Answer:
A. 2
Step-by-step explanation:
From the diagram, it is indicated;
AD = DB = 3t,
AC = 7t + 6
CE = EB = 4t
Perimeter = 48 units
Perimeter = AD + DB + AC + CE + EB
Plug in the values
48 = 3t + 3t + 7t + 6 + 4t + 4t
Add like terms
48 = 21x + 6
48 - 6 = 21x + 6 - 6
42 = 21x
42/21 = 21x/21
2 = x
x = 2
How many terms are in this expression ? 9k + 4m
Answer:
2 terms
Step-by-step explanation:
Eli built a 3-D model of a building, as shown below. Eli wrote the following calculation to find the volume.
Which is a correct description of the error Eli made while calculating the amount of sand needed to fill the model?
A. He did not include the volume of the horizontal prism.
B. He did not include the volume of the vertical prism.
C. He included the volume of where the prisms overlap twice.
D. He included the volume of the entire horizontal prism twice.
Answer:
The answer is C!
Step-by-step explanation:
C).Answer:
Have a greattt day;)
Step-by-step explanation:
2.
It took you 30 minutes (min) to walk
from home to school with the
distance of 500 meters. What is the
average speed?
Answer:
0.27778m/s woulb be my average speed
A pharmaceutical company is developing a new oral medication for the treatment of psoriasis, a skin disease marked by red, itchy, scaly, patches. Describe how you could design a controlled experiment to test the effect of the medication. How could you keep participants from knowing whether or not they were in the treatment group?
Let's say we had a sample of 100 people. We'll split them into two equal groups of 50 each. The two groups will be the treatment and control groups. The treatment group, aka experimental group, is where the actual drug is given. The control group is where the fake drug is given. People in the control group must not know the pill is fake. For more info, check out the placebo effect. In short, this is when a person takes a fake pill and thinks they get better, and that positive mentality helps them actually get better.
If both the treatment and control groups improve (on average) together, then that means the fake pill is just as good as the real thing. Consequently, it means the real pill isn't effective at all. If on the other hand the experimental group does better overall compared to the control group, then we can see that the real pill is doing what it's intended to do. Of course, there are a lot of complicated factors involved, as there is with anything dealing with medicine. I haven't mentioned anything about side effects or things of that nature. In this simplified viewpoint of the world, we're only considering the one factor of whether or not the drug clears up the psoriasis on the skin.
To make things fair, it's best to randomly generate numbers so that you randomly assign people into each group. That way you have representative samples. Also, when drawing the sample of 100 people, make sure that's as random as possible to help represent the population as best as possible. The fact that the people in the control group not knowing that they are taking the fake pill means we have a single blind experiment. A double blind experiment is when even the researchers are not sure who is taking the real pill vs the fake pill. Double blind experiments are encouraged to prevent the researcher's bias from affecting the results.
To keep participants from knowing whether or not they are in the control group, the common solution is to provide a sugar pill. The pill will not cause any side effects and will not cause any improvements to health. It's simply sugar. To the participant, it seems like the real thing since they can't taste the difference or detect anything seems different.
Answer:
Randomly select a sample of people with psoriasis. Randomly assign them to one of two groups. Give one group the treatment, and withhold it from the other group. Give both groups similar looking pills, so neither knows which group they are in.
Math 143 flooring lab
Answer:
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Step-by-step explanation:
What is the area of this figure?
Enter your answer in the box.
Answer:
24
Step-by-step explanation:
Area of the 1st upright rectangle: 3x4=12
Area of 2nd rectangle: rectangle: 6x1=6
area of triangle: ((1st leg)x(2nd leg))/2=(4x3)/2=6
1st leg=4
2nd leg=6-3=3
12+6+6
24=area
Hope this helps :)
6x = 2y - 7 what is the terms
Answer:
y = 3x+7/2, and x = (2y-7)/6
Step-by-step explanation:
The sum of 1 2 and 1 5 is between 1 2 and 1. YES OR NO?
Answer:
No
Step-by-step explanation:
because the sum 12+15= 27
and 27 not come between 12 & 1
Write the equation of the line in either point-slope form or slope-intercept form.
Write the equation of a line that has a slope of -3 and passes through the point (1.25, -4).
Use the drop-down menus to select the appropriate values in the equation.
y = _ x + _
Answer:
here you go hope this helps
Step-by-step explanation:
y= -3x + -4
Answer:
answer in picture
Step-by-step explanation:
HELP ASAP. What is the area of this trapezoid and the formula. Please explain your reason.
Answer:
base 1 + base 2 times height times half (basically dividing by 2) is the formula of a trapezoid. 25 + 35 = 60 x 21 = 1260 divided by 2 is 630
Help Please! SOS! ASAP!
Answer:
45
Step-by-step explanation:
If you write it out it will look like this, 2x+45+x=180
3x+45=180
3x+45=180
-45 -45
3x=135
/3 /3
x=45
Answer:
x=45
Step-by-step explanation:
Straight angles/lines are equal to 180 degrees. If you add the equations together to get 180 and simplify you'll find the answer. So, start out with the equation 2x+45+x=180.
1. Add like terms. 3x+45=180
2. Subtract 45 from both sides. 3x=135
3. Divide by 3 on both sides to get x by itself. x=45
4. Just to make sure, plug in 45 for x. 2(45)+45+45=180. Sure enough, it works!
Find there area of the composite figure below
Plz help it’s due in 5 min...
Which table represents a direct proportion between the number of tickets sold and the total cost?
Answer:
The answer is D
Step-by-step explanation:
y=kx
9=k
Plug it in they are all true.
The table represents a direct proportion between the number of tickets sold and the total cost will be D.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The slope of the line is given as,
m = (y₂ - y₁) / (x₂ - x₁)
For the linear relationship, the slope will remain constant.
Let's check all the options, then we have
A. The slope is given as,
m = (2 - 0) / (1 - 0) = (4 - 2) / (3 - 1)
m = 2 ≠ 1
B. The slope is given as,
m = (4 - 0) / (2 - 0) = (6 - 4) / (4 - 2)
m = 2 ≠ 1
C. The slope is given as,
m = (7 - 5) / (2 - 1) = (9 - 7) / (3 - 2) = (11 - 9) / (4 - 3)
m = 2 = 2 = 2
The y-intercept is 3.
D. The slope is given as,
m = (18 - 9) / (2 - 1) = (27 - 18) / (3 - 2) = (36 - 27) / (4 - 3)
m = 9 = 9 = 9
The y-intercept is zero.
The table addresses an immediate extent between the number of tickets sold and the all-out cost will be D.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ2
Gina is wrapping gifts for her daughter's birthday how many square inches of wrapping paper does Gina use to wrap a box 3 inches 8 inches tall 14 inches
Answer:
336 inches
Step-by-step explanation:
Solve each equation.
11. A number x divided by nine is two.
Answer:
18 is the correct answer to this
Step-by-step explanation:
18/9=2
Sorry about asking this question again
Answer:
1. 6 2. 5 3. 4 4. 3 5. 2
Step-by-step explanation:
-2(3+m)=
Solve the question
HELP ASAP PLS ANSWER THE QUESTION IN THE PIC I GIV BRAINLEST AND LOTS OF POINTS TO CORRECT ANSWER
an angle measures 66° less than the measure of its complementary angle. what is the measure of each angle
Answer:
12 and 78
Step-by-step explanation:
The sum of complementary angles is 90 degrees
X+(x-66) = 90
2x = 156 x = 78
78-66 = 12
How can I find what the question is looking for?
Answer:
m<N = 130°
m<K = 50°
x = 28
Step-by-step explanation:
angle N and angle K are supplementary so the sum of their measures is 180°
4x + 18 + 2x - 6 = 180 add like terms
6x + 12 = 180 subtract 12 from both sides
6x = 168 divide both sides by 6
x = 28 to calculate the measurements of angle N and K replace x with 28
N = 4x + 28 so 4 × 28 + 18 = 130°
N = 2x - 6 and 2×28 - 6 = 50°