can someone help with this simple question? giving out brainliest!
A researcher asked five of his doctor friends if they thought the new Brand X medicine that he
developed was effective. Four responded "yes." The researcher used the results to write a TV
advertisement claiming that "4 out of 5 doctors prefer Brand X medicine." Is this a valid inference?
Explain.
Use pencil and paper. Explain all of the factors that are necessary for an inference to be valid.
Is the inference valid? Explain. Choose the correct answer below.
OA. No, because the doctors asked are not a representative sample of the population of doctors.
OB. No, because 4 doctors said yes out of 9 who were asked.
OC. Yes, because 4 doctors said yes out of 5 who were asked.
OD. Yes, because the doctors asked are a representative sample of the population of doctors.
Answer:
OA
Step-by-step explanation:
First of all, this is not math its common sense
4/5 is just an ifference. in order to prove this, the general term would be asking a factor of the doctors such as 10, and then ask.
To prove this , use algebra.
4x/5x
Shorten to 1
0.8x/1x
So you would theoretically be getting infinite amounts of doctors. but still 4/5 of them will say yes.
This is false because N0 is a cardinal number system where is omega is a ordinal.
asking five people is indefinitely not enough to determine a representatoive sample of every doctor in the world.
I need this done it’s due today
Answer: easyy for me tho, im good at math, but legit nothing else :/
Step-by-step explanation:
its 250 inches squared
Do you know the answer to my question?
Answer: 250in^2
Step-by-step explanation:you would times them all by each other
A prism has a length of 5 meters, height of 6 meters, and width of 1 meter.
The length of the prism is
m.
The width of the prism is
m.
The height of the prism is
m.
unit cubes fill the prism.
The volume of the prism is
m3.
Answer: 30 m3 (meters cubed)
Step-by-step explanation:
To get the volume of a rectangular prism, multiply the width times the length times the height.
1 x 5 x 6 = 30
Add the unit label
BRAINLIEST IF CORRECT
Step-by-step explanation:
They have equal ratio of yellow
Answer:
spinner b
Step-by-step explanation:
If the perimeter of a triangle is 31 ft and two of the side lengths are 15 ft and 10 ft, what is the length of the third side?
A. 56 ft
B.25 ft
C.16 ft
D.6 ft
Answer:
D would be the answer
Step-by-step explanation:
31 - 15 = 16
16 - 10 = 6
what angles are vertical to 8 ? Select all that apply.
Answer:
The answer is 6
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
angle 6
Step-by-step explanation:
vertically opposite to angle 8 is angle 6.
Vertical Angles are the angles opposite each other when two lines cross. "Vertical" in this case means they share the same Vertex (corner point), not the usual meaning of up-down.
The length of the minute hand of a clock is 11cm. What is the distance covered by the minute hand in 1 hour ?
69.1cm
or
34.54 cm
Step-by-step explanation:
[tex]\huge\mathfrak\pink{Answer✓✓.. ***°°°} \\ \\ \huge\mathfrak\green{69.1 \: cm} \\ \\ \huge\mathcal\purple{hope \: it \: helps \: ***}[/tex]
Help will give brainlest.
can someone help with these two questions? dont worry if its wrong!
________________________________
1. If one batch of cookies requires two and half cups of flour. Then we'll have to multiply it into three and a half.
Solution:2 and half cups of flour = one batch of cookies
8 cups of flour = three batches of cookies
2. If eight kids get to go to the water park for $60. Do the same as i did on the first one. Just multiply them.
Solution:$60 = eight kids
So every kids has to pay $7.5 to go to water park.
$7.5 × 8 = $60
$195 = 26 kids
$7.5 × 26 = $195
________________________________
Triangle JKL is rotated 180 about the origin, resulting in triangle J’K’L. What are the coordinates of the vertices of J’K’L? Move the coordinates into the tae to indicate vertices of triangle J’K’L’.
HELP ME PLZ
The verticies of J’K’L would be, J'(-a, -b), K'(-c, -d), and L'(-e, -f).
What are transformations?Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
Dilation: The preimage is scaled up or down to create the image.
Reflection: The picture is a preimage that has been reversed.
Rotation: Around a given point, the preimage is rotated to create the final image.
Translation: The image is translated and moved a fixed amount from the preimage.
Given, Triangle JKL is rotated 180 about the origin, resulting in triangle J’K’L.
Assuming the coordinates of J(a, b), K(c, d) and L(e, f).
We know a rotation of 180° to (x , y) ⇒ (- x, - y).
Therefore, The vertices of J’K’L would be, J'(-a, -b), K'(-c, -d), and L'(-e, -f).
learn more about the transformation of graphs here :
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factor the polynomial function over the complex numbers. f(x) = x^4 + 3x^2 - 4? WILL GIVE BRAINLIEST AND 50 POINTS (ALGEBRA 2) NEED ANSWER ASAP
Answer:
(x+1)(x−1)(x+2i)(x−2i)
Step-by-step explanation:
I saw this on my assignment, study guide, and test. It was correct and checked by my teacher.
Answer:
(x+1)(x−1)(x+2i)(x−2i)
Step-by-step explanation:
Simplify the following expressions.
8x + 6y + 5x + 4y
Answer:
68y
Step-by-step explanation:
Alexander’s parents are saving for his college fund. They put $8,000 into an interest-bearing account with an annual compound interest rate of 4.5%.
Alexander’s parents want to determine what the balance of his college fund account will be after 12 years.
Which formula would be used for this situation?
A = (8,000 + 0.045)12
A = 8,000(1 + 0.045)12
A = 8,000(1 + 0.12)4.5
A = 8,000 · 0.045 · 12
Answer:
a=8,000(1+0.12)4.5
Step-by-step explanation:
Answer:
Step-by-step explanation:
A = 8000(1+0.045)^2
(note: the last number in the given answer choices should be in superscript, or preceded by ^ to indicate exponent.)
Katherine randomly those one candy from a jar and put it back in the jar. She repeated this process many times. The table shows the number of
times she chose each color of candy.
Color of Candy Number of Times
Red :12
Green :11
Yellow :12
Purple :8
Blue: 7
Based on the data in the table, what is the probability that the next piece of candy Katherine pulls out of the jar will be blue?
please help me with the questions below
Answer:
2) 3/4 of the girls did not have 1 piece bathing suits
3) 4/6 were at the kiddie pool
4) 1/3 was boys
sorry if this was wrong
I really extreme help
help pleasee!!!!!!!!
Answer:
14.2 ounce bottle
Step-by-step explanation:
the 14.2 ounce bottle Is 2 cents cheaper per ounce
PLEASE I NEED THIS ASAP MY TEST HAS AN ANSWERR PLEASEEE
What is the value of x?
-3x + 8 = 38
Answer:
-10
hope it helps
If 30.s g of milk contains 18 C, how many
Calories will you consume by drinking a glass
of milk (244 g)?
Answer:
the answer would be (244/30.5) x 18, so the answer should be 144!
Step-by-step explanation:
Put me the brainest. thanks
Pls name a set of vertical angles in the image below:
Answer:
1 and 3 ; 2 and 4
Step-by-step explanation:
Vertical angles are two angles that have the same vertex. They are congruent
Answer:
1 and 3 are vertical angles
2 and 4 are vertical angles
Step-by-step explanation:
Vertical angles are angles formed by the same lines but are opposite each other
1 and 3 are vertical angles
2 and 4 are vertical angles
A team of runners is needed to run a 1/4 -mile relay race. If each runner must run
1/16 mile, how many runners will be needed?
Answer:
4 runners
Step-by-step explanation:
I divided 1/4 by 1/16 and got 4 as an answer.
Hope this helps :)
(Correct me if i am wrong)
Write an equation that represents the line. Use exact numbers.
y = 6/5x -5
6/5 is your slope. Slope is always rise over run or y over x. -5 is the y- intercept. What is y when x is zero.
Luciana is starting a two-week social media campaign to attract new subscribers to BlastOn, a music website for teens. She has the following data from her last campaign to help plan her strategy.
Based on this data, what should be Luciana’s strategy for the new campaign?
If your answer is incomplete or confusing PLEASE DO NOT write the answer down. Or YOU will be REPORTED!!!!
Answer:
Luciana should post 5 social media posts per day.
Step-by-step explanation:
When Luciana posts 5 posts in a day, she gains more subscribers than any other amount of posts.
hope this was useful
How many lines of symmetry are in a regular polygon?
seven
twice as many as the number of sides
half as many as the number of sides
the same number as the number of sides
Answer:
the same number as the number of sides
lines of symmetry are in a regular polygon is the same number as the number of sides.
the correct option is (D)
What is Line of symmetry?A line of symmetry is a line that cuts a shape exactly in half. This means that if you were to fold the shape along the line, both halves would match exactly.
The number of lines of symmetry in a regular polygon is equal to the number of sides.
For example,
It has four lines of symmetry and four sides. A regular pentagon has 5 sides and 5 lines of symmetry.
Hence, lines of symmetry in a regular polygon is equal to the number of sides.
Learn more about line of symmetry here:
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Name a set of vertical angles in the image below:
A. 2 and 3
B. 1 & 3
C. 1 & 4
D. 4 & 3
Explanation:
Vertical angles form when we have an X shape like this. They are opposite one another and always congruent. Angles 2 and 4 is the other set of vertical angles.
Answer:
B. 1 & 3
Step-by-step explanation:
The vertical angles are pairs of opposite angles made by 2 intersecting lines. Here, 1 and 3 are the same length, and are on opposite sides.
Round 72,934 to the nearest hundreds place and enter the value below.
Answer:
72,900
Step-by-step explanation:
9 is in the hundreds place so therefore you should look to the left which us 3 and 3 is less than 5 so the answer is 72,900
Match these items.
1. a number to be multiplied
GCF
2. 5
factor
3. 6
prime number
4. greatest common factor
LCM
5. least common multiple
composite number
Answer:
gcf gose with 4 lcm gose with 5 5 is a prime number wich leaves 5 to go to 1
ASAP! MATH WIZZES PLEASE HELP!! ALGEBRA 1
Factor the following trinomials:
1) x^2 + 10x + 16
2) x^2 + 21x + 20
3) x^2 - 6x + 8
Step-by-step explanation:
1) (x+2)(x+8)
2) (x+1)(x+20)
3) (x-2)(x-4)
Answer:
1) (x+2)(x+8)
2) (x+1)(x+20)
3) (x-2)(x-4)
Step-by-step explanation:
Need help with math earn 10 points
Answer:
Step-by-step explanation:
60