Answer:
Step-by-step explanation:
Two groups of subjects were divided in an experimental study. One group was given a drug to help speed up
their metabolism and result in weight loss. The other group was given a placebo (a pill that looks identical to the one given to the other group, but without the weight loss drug). After a month of the experiment, the weight loss of each individual in each of the two groups were measured. In general, people in the group who took the metabolism drug did lose more weight, although there were differences in the amount each lost. There are two main types of variability occurring in this study. Describe each type below in the context of this study.
Induced Variability-
Natural Variability-
------------------------------------------------------------------------
Induced Variability - It is the kind of variability that is introduced by the one conducting the experiment. The decision to give one group the drug and othe other group a placebo was deliberate to check the merit of the drug on its own and was introduced by the one conducting the study. Hence the, the observation that the group that took the drug lost more weight as compared to the group that took the placebo is an induced variability.
Natural Variability - It is classified as a natural fluctuation in the observations that is not influenced by the one conducting the study. Even though the group that took the drug lost more weight, the exact amount that each of them lost was not constant. Hence this was a variability that did not introduce itself through the one conducting the study, and rather was unexplained and natural. Hence it is a natural variability.
Which best explains whether a triangle with side lengths 5 cm, 13 cm, and 12 cm is a right triangle? The triangle is a right triangle because 52 + 122 = 132. The triangle is a right triangle because 5 + 13 > 12. The triangle is not a right triangle because 52 + 132 > 122. The triangle is not a right triangle because 5 + 12 > 13.
Answer:
The Triangle Is A Right Triangle Because 5^2 + 12^2 = 13^2.
Step-by-step explanation:
5^2 = 25. 12^2 = 144. With the Pythagorean theorem, (a^2 + b^2 = c^2), 5 is a, 12 is b, and 13 is c.
25 + 144 = 169.
13 ^ 2 = 169.
Since a^2 + b^2 = c^2 is true, the triangle is a right triangle.
Given:
Sides of triangle= 5cm, 13cm and 12cm
To find: Whether a triangle is a right angled triangle.
This can be solved by applying Pythagorean theorem:
According to the Pythagoras theorem, the square of the hypotenuse is equal to the sum of the squares of the other two sides of a triangle.
[tex]H^2=P^2+B^2[/tex]
where,
H= Hypotenuse
P= Perpendicular
B=Base
Applying given values in the formula:
[tex]H^2=P^2+B^2\\\\13^2=5^2+12^2\\\\169=25+144\\\\169=169[/tex]
Since, R.H.S= L.H.S
Thus, we can say that this triangle is a right angled triangle.
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PLSS I NEED U HELP IM BAD AT MATH
Answer:
B
Step-by-step explanation:
I think is b.....Hope this helps byeee.
Answer:
B
Step-by-step explanation:
Because u need to understand that if u do 45 -15 + 30 you can find the answer by knowing Jerry's age. Therefore it is B.
Oh and anyone reading this my roblox is Supertasticgg and follow me lol ;p
And sub to flamingo if you get it right to.
Can someone help me with this? I will mark brainliest
Answer:
C=diameter x pi
radius + radius = diameter
6+6=12
12 x 3.14 = 37.68
8 x 3.14 = 25.12
_____________
Radius x radius x pi = area
diameter / 2 = radius
8/2=4
4 x 4 = 16 x 3.14 = 50.24
6 x 6 = 36 x 3.14 = 113.04
_______________
6 km circle has circum of 37.68 and area of 113.04
8 km circle has circum of 25.12 and area of 50.24
Hope this helps
Step-by-step explanation:
Find the slope from the table.
Answer: D because as the numbers grow the right numbers grow too.
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
A cylinder has a height of 11 feet and a radius of 11 feet. What is its volume? Use ≈ 3.14 and round your answer to the nearest hundredth.
___cubic centimeters.
Answer: 4181.46 cu. feet
118405761 cu. cm
Step-by-step explanation:
Volume = pi r^2 h
Answer:
i think 14 sorry if its wrong
Step-by-step explanation:
Does anyone know what I am missing to get the final mark? Any ideas would be much appreciated :)
Answer: Isosceles
Step-by-step explanation:
Given: AB || DE , BC is a transversal
∠ABC ≅ ∠BCE by Alternate Interior Angles Theorem --> ∠BCE = 80°
∠DCA, ∠ACB, & ∠BCA are supplementary --> ∠ACB = 50°
By the Triangle Sum Theorem, ∠A+∠B+∠C = 180° --> ∠CAB = 50°
Triangle is isosceles because ∠A ≅ ∠C
A circle has a radius of square root 37 units and is centered at (1.3,-3.5)
Write the equation of this circle.
Answer:IDK but I think you have to find wht 1.3_____3.5 and that will give you your answer
Step-by-step explanation:
The following data points represent the number of emails that the CEO of Rock Town Apparel sent each day since he started using a new email client. 6,59,55,106,84,86,96. use the data to create a histogram
Answer:
Frequency density is found when we divide the class width being the days of the week = 7 So that when we see 6 emails its divided by 7 = 6/7 0.857142857 as density 59/7 = 8.42857143 and 55/7 =7.85714286 and 106/7 = 15.1428571 and 84/7 = 12 and 86/7 = 12.285714 and 96/7 =13.7142857 this shows us we need to draw 16 bars up and 7 bars across - The bars across (x line) can be days of the week and the bars going up (y line) an be number of emails if 16 is ore than 106/7 then 16 squares > 106/7 then 15 < 106/7 So we ensure its a proportion of 15.143 and not more than that- and not less than 15.142 for day 4 = 106 emails
In the diagram, what is the measure of ZWRS?
Z
5°
(5x)"
R
075
(25x + 30)
0 25°
w
0 37.59
s
Answer:
WRS=25 degree
Step-by-step explanation:
Angle VRT + angle TRS = 180 degree (supplementary angles)
5x+25x+30=180
5x+25x=180-30
30x=150
x=150/30=5
Substituting x=5 into angle VRT
5(5)=25
VRT= 25 degree
Looking at the diagram, angle VRT and angle WRS are vertically opposite angle and are therefore equal.
Now, angle WRS= 25 degree
The measure of the angle of intersecting lines ∠WRS = 25°
What are the angles formed by 2 intersecting lines?Two straight lines that intersect at the same location are said to be intersecting lines. The junction point is the place where two intersecting lines meet. Four angles are created when two lines cross. The four angles added together always equal 360 degrees.
Perpendicular lines are two straight lines that intersect and form right angles. When two perpendicular lines intersect, they form four right angles.
When lines intersect, two angle relationships are formed:
Opposite angles are congruent
Adjacent angles are supplementary
Given data ,
Let the two intersecting lines be a and b
where the measure of ∠SRT = ( 25x + 30 )°
The measure of angle ∠VRT = ( 5x )°
And , the measure of ∠VRT = measure of ∠WRS ( Opposite angles are congruent )
And , the measure of ∠VRT + measure of ∠SRT = 180° ( angles in straight line )
So , 5x + 25x + 30 = 180
30x = 150°
Divide by 30 on both sides , we get
x = 5
Now , the measure of ∠WRS = [ 5 ( 5 ) ] °
Hence , the measure of angle ∠WRS = 25°
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In a box of eight donuts, two have pink sprinkles. Express the percent of the donuts in the box that have pink sprinkles
Answer:
25%
Step-by-step explanation:
2 donuts are 1/4 of all of the donuts so that is 25%
Which system of inequalities is shown?
The system of inequalities is y<x and y<4.
What is an inequality?In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to each other.
To solve the inequality, you may multiply or divide each side by the same positive number, add the same amount to each side, take the same amount away from each side, and more. You must flip the inequality sign if you multiply or divide either side by a negative number.
Given, the region is shaded y < 4.
And the region is not exceeding the x.
So, y<x.
Therefore, the system of inequalities is y<x and y<4.
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I need help on these two questions!
Answer:
1) 5
2) 25
Step-by-step explanation:
Since a square has equal sides, we have 4x=2x+10
2x=10
x=5
The area of a square is 5 squared, which is 25.
What is the volume of the right rectangular prism with a length of 18 inches, a width of 4 inches, and a height of 10 inches?
32 in
64 in.
720 in
1,440 in
Answer:
720 inches cubed
hope this helps <3
last month maria purchased a new cell phone for $500. the store manager told her that her cell phone would depreciate by 70% every 6 months. maria thinks she will want to replace her phone after a while. what will be the value (V) of her phone if she tries to trade it in after 2 years? select ALL that apply.
A: V=500(0.70)⁴
B: V=500(0.30)⁴
C: V=500(0.30)²
D: V=500(1 - 0.70)⁴
E: V=0.70(500)⁴
F: V=0.30(500)²
We have been given that last month Maria purchased a new cell phone for $500. The store manager told her that her cell phone would depreciate by 70% every 6 months.
We know that an exponential function is in form [tex]y=a\cdot (1-r)^x[/tex], where,
y = Final value,
a = Initial value,
r = Decay rate in decimal form,
x = Time in years.
Let us convert [tex]70\%[/tex] into decimal form.
[tex]70\%=\frac{70}{100}=0.70[/tex]
Initial value of car is 500, so [tex]a=500[/tex].
Since value of phone depreciates every months, so value of phone will depreciate twice in a year.
Upon substituting our given values in exponential decay function, we will get:
[tex]V=500(1-0.70)^{2x}[/tex]
To find the value of phone after 2 years, we will substitute [tex]x=2[/tex] in our equation.
[tex]V=500(1-0.70)^{2(\cdot 2)}[/tex]
[tex]V=500(1-0.70)^{4}[/tex]
Therefore, option D is the correct choice.
Let us simplify our equation.
[tex]V=500(0.30)^{4}[/tex]
Therefore, option B is correct as well.
What is the length of a?
Step-by-step explanation:
under root 75 yards square - 45 yards square
so the length of a is 60 yd.
Look at the attached picture
Hope it will help you
Good luck on your assignment..
Explain the concept of regression to the mean between
generations.
Answer:
Regression to the mean occurs when the next generation regresses to the overall mean of the population.
Step-by-step explanation:
Regression to the mean occurs when the next generation regresses to the overall mean of the population. Extreme traits trend back to the average and are not increased or decreased in terms of measure. Measurable traits or characteristics that are extreme move back toward the average value. The next generation traits move back, or regress, to the average of that trait
Answer:
Regression to the mean is a statistical phenomenon that occurs whenever you have a nonrandom sample from a population and two measures that are imperfectly correlated.
Step-by-step explanation:
Rosa has 16 pieces of ribbon that she is using for a project.if each ribbon is 5/8 yard long how many yards of ribbon does rosa have?
Answer:
Step-by-step explanation:
Length of each ribbon = 5/8 yards
Length of 16 pieces of ribbon = 16* (5/8)
[tex]=16*\frac{5}{8}\\\\=2 * 5 \\\\=10[/tex]
= 10 yards
The radius of a circle is 7 m. Find its area to the nearest tenth
Answer:
153.9
Step-by-step explanation:
Formula for area
A = r^2 * π
A = 7^2 * π
A = 153.93804
A ≈ 153.9
What is the area of a circle with a radius of 6 in.? Use 3.14 for the value of
pi,
Answer:
113.04
Hope this helps!
Answer:
113.04
Step-by-step explanation:
So in order to get area you gotta do R times R times Pie
So then,
You do 6 times 6,
and get 36,
Then you times 36 by 3.14 estimated,
Which gets you 113.04
Gregory applies honey to one side of his toast. He wants to estimate the likelihood that the toast will land with the honey side facing up when dropped. He drops the toast 40 times and finds that it lands with the honey side facing up 8 times. From this data, it is ________ that the toast will land with the honey side facing down.
A. unlikely
B. Likely
C. neither Likely or unlikely
Answer:
C. neither Likely or unlikely
Step-by-step explanation:
Its neither because its a 50/50 chance it will land on either side.
can you 31 35 42 55 70 75 80 78 71 59 48 46 in order
Answer:
31 < 35 < 42 < 46 < 48 < 55 < 59 < 70 < 71 < 75 < 78 < 80
Step-by-step explanation:
Order from Least to Greatest
Answer: 31 < 35 < 42 < 46 < 48 < 55 < 59 < 70 < 71 < 75 < 78 < 80
Hope this helps.
Answer:
31, 35, 42, 46, 48, 55, 59, 70, 71, 75, 80
Step-by-step explanation:
Help a girl out please and thank you.
Answer:
Step-by-step explanation:
As all are similar polygons , corresponding sides will be in proportion.
[tex]1)\frac{9}{12} =\frac{3}{4}\\\\[/tex]
Scale factor = 3 : 4
[tex]2)\frac{12}{15}=\frac{4}{5}\\\\[/tex]
Scale factor = 4 : 5
[tex]3) \frac{10}{25}=\frac{2}{5}\\[/tex]
Scale factor = 2:5
4)
[tex]\frac{8}{16}=\frac{1}{2}[/tex]
Scale factor = 1 : 2
A local kids play sold 8 adult tickets and 9 child tickets for a total of $205. On day two they sold only 4 adult tickets and 3 child tickets for a total of $83. What was the price of each kind of ticket?
Answer:
Adult tickets cost $11 and child tickets cost $13
Step-by-step explanation:
Multiply the second equation by -2, then add the equations together.
(8a+9c=205)
−2(4a+3c=83)
Becomes:
8a+9c=205
−8a−6c=−166
Add these equations to eliminate a:
3c = 39
Then solve3c=39for c:
3c=39
[tex]\frac{3c}{3}[/tex] = [tex]\frac{39}{3}[/tex]
(Divide both sides by 3)
c = 13
Now that we've found c let's plug it back in to solve for a.
Write down an original equation:
8a+9c=205
Substitute 13 for c in 8a+9c=205:
8a+(9)(13)=205
8a+117=205 (Simplify both sides of the equation)
8a+117+−117=205+−117 (Add -117 to both sides)
8a=88
[tex]\frac{8a}{8}[/tex] = [tex]\frac{88}{8}[/tex]
(Divide both sides by 8)
a = 11
Do toy have a triangle with a 3 angles:60 degrees, 60 degrees, 63 degrees
Answer:
no.
Step-by-step explanation:
a triangle can only have 180° in total but
60+60+63
=183°
Therefore a triangle can not have these three angles together.
A store has 11.2 kg of potatoes. Maria buys 572 g of potatoes from the store and Colin buys 1.42 kg of potatoes from the store.
After these two purchases, how many grams of potatoes does the store have left?
Answer:
2.84
Step-by-step explanation:
Find the third, fifth,and eleventh terms of the sequence described by the rule.
A(n)=6+(n-7)(7)
A(3)= ?
Answer:
aₙ = 6 + (n - 1)*7
a₃ = 6 + (3 - 1)*7 = 20
a₅ = 6 + (5 - 1)*7 = 34
a₁₁ = 6 + (11 - 1)*7 = 76
Use the parabola tool to graph the quadratic function
f(x) = -(x - 2)(x + 4)
Graph the parabola by first plotting its vertex and then plotting a second point on the parabola.
Your parabola should look like this image. The vertex is at (-1, 9), and you can use any of the x-intercepts (-4, 0) & (2, 0) or the y-intercept (0, 8) as a second point.
Answer:
(-1, 9) & (8, 0)
Step-by-step explanation:
Just finished the test, this is the correct answer. Hope this helps!!
Drag the dot to plot (6,0), and then select its location on the coordinate plane.
Answer
I think it is (5,0)
What is the insurance premium for a 42-year old nonsmoking female ($6.75) who wants $125,000 in coverage?
a. $33.75
b. $41.50
c. $58.25
d. $60.00
Answer:
The question is missing the sample life insurance premium illustration as found in the attached.
The correct option based on the below calculation is A,$33.75
Step-by-step explanation:
A female non-smoker who wanted a coverage of $25,000 as found in attached the sample life insurance premium illustration would pay $6.75 in premium.
Based on the above, a female non-smoker who wanted a coverage of $125,000 has it premium computed thus:
premium=$125,000/$25,000*$6.75
premium=5*$6.75=$33.75
The correct option is A,$33.75
Answer:
The insurance premium for a 42-year old nonsmoking female who wants $125,000 in coverage is $33.75. The right answer is a.
Step-by-step explanation:
In order to calculate the insurance premium for a 42-year old nonsmoking female who wants $125,000 in coverage we would have to use the following formula:
insurance premium= (coverage amount/monthly premiun amount)*$6.75
Therefore, insurance premium= ($125,000/$25,000)×$6.75
insurance premium= $33.75
The insurance premium for a 42-year old nonsmoking female who wants $125,000 in coverage is $33.75
How to find the volume of a composite solid
Answer:To find the volume of a composite solid, u identify the different parts it is made of, work out the volume of each part independently, and sum up the volumes of its parts. For composite prisms, where the bases are a composite shape, the area of the bases is the sum of the areas of the parts it is made of.