Answer:6
Step-by-step explanation: I do not have an explanation for you but its 6
1. Which of these statements describes a key distinction between an observational study and an experimental study?
A: Experimental studies are more representative of the larger population than observational studies.
B: Data is collected in experimental studies, but not in observational studies.
c: Observational studies try to answer a question, but experimental studies do not.
D: Experimental studies directly influence something to see its effect, but observational studies do not directly influence the subjects.
Answer: Experimental studies directly influence something to see its effect, but observational studies do not directly influence the subjects.
Step-by-step explanation:
The correct option is D.
In an experimental study, you perform an experiment. In an experiment are made with the objective of validating, refute, or support a given hypothesis, where you observe "what happens" when you modify a given set of parameters. Always in an experiment, we can define the independent and dependent variables, where the independent are the ones that we can modify at will, and the dependent ones are the ones that we observe to see how they react to the changes in the independent variables.
In observational studies, the idea is not changing anything in the object of study, so the scientist in this case are only observers or spectators.
Eastern Ice Company sells 10 pound blocks of ice in the shape shown. The volume of the block of ice is 375 Inches cubed. What is the height of the block of ice?
A block of ice has a length of 10 inches and a width of 7.5 inches.
Use the formula Height = StartFraction Volume Over length times width EndFraction, where l is the length of the prism, w is the width, V is the volume, and h is the height.
2.5 inches
4 inches
5 inches
7.5 inches
Answer:
2.5
Step-by-step explanation:
A block of ice has a length of 10 inches and a width of 7.5 inches. Therefore, the height of the ice is 5 inches.
How to find the volume of the cuboid?Let the three dimensions(height, length, width) be x, y,z units respectively.
Then the volume of the cuboid is given as
[tex]V = x \times y \times z \: \rm unit^3[/tex]
Eastern Ice Company sells 10-pound blocks of ice in the shape shown. The volume of the block of ice is 375 inches cubed.
A block of ice has a length of 10 inches and a width of 7.5 inches.
Let z be the height of the ice.
Then the volume of the is given as
[tex]V = x \times y \times z \: \rm unit^3[/tex]
[tex]375 = 10 \times 7.5 \times z \: \rm unit^3\\\\z = 5[/tex]
Therefore, the height of the ice is 5 inches.
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Denise is 4 years younger than Alma. Misty
is three times as old as Alma. All together,
they have an age of 41. How old is Misty?
Answer:
Misty is 27
Step-by-step explanation:
27÷3=9
Alma is 9
9-4=5
Denise is 5
27+9+5=41
Write the equation of the graph in its final position.
The graph of y = ex is translated 7 units to the right and then 5 units upward.
what did you guys get?
The new function after the transformation becomes as y = eˣ⁻⁷ + 5. The correct option is (d).
How to transform a graph of the function?The graph of a function can be transformed by either shifting it in the right, left, up or down.
When the transformation is rightwards, the function becomes as f(x - a).
For left shifting it is f(x + a).
And, for up and down shift it is a + f(x) and a - f(x) respectively.
Given that,
The graph of y = eˣ is translated 7 units to the right and 5 units upward.
According to the rule of transformation for a graph, when a function is shifted righwards, it becomes as f(x - a) and when it is shifted upwards it becomes a + f(x).
Apply the above mentioned rule for the given function to obtain,
y = eˣ⁻⁷ + 5
Hence, the function resulting after being shifted 7 units rightwards and 5 units upwards is y = eˣ⁻⁷ + 5.
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Laurel earns 1.8% interest each year on a special savings bond. If the bond is $750 hiw much interest will she earn by the end of the year?
Answer:
$13.5
Step-by-step explanation:
Answer: 750 x 1.8% = 13.5
Laurel will earn $13.5 of interest in one year.
A well-mixed cookie dough will produce cookies with a mean of 8 chocolate chips apiece. What is the probability of getting a cookie with no more than 3 chips
Answer:
The probability of getting a cookie with no more than 3 chips is 0.0424.
Step-by-step explanation:
Let X number of chocolate chips apiece of cookie.
The mean number of chocolate chips apiece is λ = 8.
The random variable X follows a Poisson distribution with parameter λ = 8.
Compute the probability of getting a cookie with no more than 3 chips as follows:
[tex]P(X\leq 3)=\sum\limits^{3}_{x=0}{\frac{e^{-8}(8)^{x}}{x!}}[/tex]
[tex]=0.00034+0.00268+0.01073+0.02863\\=0.04238\\\approx 0.0424[/tex]
Thus, the probability of getting a cookie with no more than 3 chips is 0.0424.
I need some help please and thank you
Answer:
its A
Step-by-step explanation:
Which figure is missing the pattern
I need 6 answers, please help thank you!
Answer: 2x^3 - x^2 - 29x + 28
Solve the equation for the variable y in terms of the variable x. 4x + y = 6
Answer:
y = -4x + 6
Step-by-step explanation:
To solve for y in terms of x, isolate y.
To get y by itself, subtract 4x from both sides:
4x + y = 6
y = -4x + 6
So, y in terms of x is y = -4x + 6
Answer:
y = − 6 + 4 x
Step-by-step explanation:
A garden hose is leaking water. The graph shows how much water leaks over time.
What is the rate, in ounces per minute, that water is leaking from the garden hose?
A.36
B.6
C.4
D.12
Answer:
the answer is B
Step-by-step explanation:
because 12 divided by 2 equals 6
I'll try to give you brainliest if you get this right.
Answer:
I literally just finished that- It should be >
Step-by-step explanation:
I hope this helps. Plus look at the what its asking then look at 26.1 and i think you should see it.
x:y=5 :3 and x+y=56 work out x-y
Answer:
The value of x - y is 14
Step-by-step explanation:
∵ x : y = 5 : 3
→ Write it in the form of the fraction
∴ [tex]\frac{x}{y}=\frac{5}{3}[/tex]
→ Multiply both sides by y
∴ [tex]\frac{x}{y}[/tex] × y = [tex]\frac{5}{3}[/tex] × y
∴ x = [tex]\frac{5}{3}[/tex] y ⇒ (1)
∵ x + y = 56 ⇒ (2)
→ Substitute x in (2) by (1)
∴ [tex]\frac{5}{3}[/tex] y + y = 56
→ Add the like terms
∵ [tex]\frac{8}{3}[/tex] y = 56
→ Divide both sides by [tex]\frac{8}{3}[/tex]
∴ y = 21
→ Substitute the value of y in (1) to find x
∵ x = [tex]\frac{5}{3}[/tex] (21)
∴ x = 35
→ Now find the value of x - y
∵ x - y = 35 - 21
∴ x - y = 14
∴ The value of x - y is 14
a dirt bike requires 15 L of gas to be mixed with 4 L of oil. If you use 20 L, How much oil will you need?
Answer:5.3 liters of oil
Step-by-step explanation:
PLEASE HELP ASAP WILL GIVE BRAINLEIST!!!
You have been asked to build a scale model of your school out of toothpicks. Your school is 30 feet tall. The scale you are using is 1 ft : 1.26 cm. If a toothpick is 6.3 cm tall, how many toothpicks tall will your model be?
if I'm I think it is 37.8
Answer:
31.6
Step-by-step explanation:
2 × 10-6 times what number is equal to 6 × 10-4
Answer:
-6
Step-by-step explanation:
Underline the digit in the tenths place: 637.739
Answer:
637.(7)39
Step-by-step explanation:
hope this helped
The digit in the tenths place is 7.
What is the place value?Place value can be defined as the value represented by a digit in a number on the basis of its position in the number.
The given decimal number is 637.739
Here, from left to right
6 is there in hundreds place
3 is there in tens place
7 is there in unit place
7 is there in tenths place
3 is there in hundredths place
9 is there in thousandths place
Therefore, the digit in the tenths place is 7.
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Find the product of -4(-5)
Answer:
20
Step-by-step explanation:
and negitive times a negative makes a positive
Produce means answer to multiplication
Answer:
20
Step-by-step explanation:
Find the greatest value of :
-2x²+14x-10
Answer:
300x
Step-by-step explanation:
2-2-2-2-2-2-2-2-2
Answer:
300x !
Step-by-step explanation:
3. A bowling alley charges $1.50 for bowing shoes and $3.75 for each game. Paul and
Brandon each have $15 to spend at the bowling alley.
a Paul brings his own bowling shoes. How many games can he bowi?
b. Brandon needs to pay for bowling shoes. How many games can he bowl? Round
your answer down to the nearest whole number.
c. Both Paul and Brandon decide to bowl the number of games that Brandon can
afford to bowl. Does Paul have enough money to buy a slice of pizza and a soda
that cost a total of $3.25? Explain your reasoning.
Answer:
A. Paul can bowl 4 games.
B. Brandon can bowl 3 games.
C. Yes, Paul can have a pizza and a soda. Paul, with his bowling shoes, can afford exactly four games. When playing three games, Paul has a remained of $3.75
The owner of a city parking garage uses a rate table so that he can look up the parking charges quickly
Answer:
i think its b
Step-by-step explanation:
One evening, a restaurant served a total of 1/2 of a loaf of wheat bread and 7/8 of a loaf of white bread. How many loaves were served in all?
Answer:
[tex]\dfrac{11}{8}[/tex]
Step-by-step explanation:
A restaurant served a total of 1/2 of a loaf of wheat bread and 7/8 of a loaf of white bread.
We need to find how many loaves were served in all. It is equal to the sum of the fraction of 1/2 and 7/8.
Sum of these two fractions :
[tex]\dfrac{1}{2}+\dfrac{7}{8}\\\\=\dfrac{4+7}{8}\\\\=\dfrac{11}{8}[/tex]
So, a total of 11/8 were served in all.
simplify into a good fraction
4-3/8
Answer:
27/28 this is your answer
Answer:
3 5/8. It is 3 whole number 5 out of 8.
Step-by-step explanation:
4 - 3/8 LCM = 8
(8×4 - 1×3)/8
(32 - 3)/8 = 29/8 = 3 5/8
1
Plot the image of point B under a dilation about point P with a scale factor of
1/2
Answer:
can you put the picture of the pre-image bc without it i cant answer
Step-by-step explanation:
Answer:
Where is the picture put a picture
Step-by-step explanation:
My son not understanding any of this. Can anyways help
Answer:
The answer here could possibly be D. (8×1/2)1/3
Step-by-step explanation:
Overall, what the associative property is is moving the parenthesis elsewhere. You just group two different numbers of the equation.
The equation that makes the original equation much easier to evaluate is D. (8×1/2)1/3, since 8×1/2 is 4 and now you just multiply 4 with 1/3.
Suppose that you have already been waiting for 1 hour for a taxi. What is the probability that one arrives within the next 10 minutes g
Answer:
1/6Step-by-step explanation:
Given that the total number of time that you have been waiting is 1 hour
which is equivalent to 60minutes which is the sample space
and the sample size which is 10 minutes.
then the probability of a taxi arriving in 10minutes seeing that you have been waiting for over 60minutes is
Pr(taxi arrives in 10 min)= 10/60= 1/6
thus the probability is 1/6
kindly let me know if you need further clarifications to this
Regards.
Multiply show your work
Answer:
multiply what
Step-by-step explanation:
y= -3x what is the slope and what is the y intercept
Answer:
The slope indicates the rate of change in y per unit change in x. The y-intercept indicates the y-value when the x-value is 0.
Step-by-step explanation:
A shipment of 8 parrots from Brazil includes 2 parrots with a potentially fatal disease. As usual, the U. S. Customs Office at the shipment's point of entry randomly samples 4 parrots and tests them for disease. What is the probability that the first three parrots selected are healthy
Answer:
5 / 14
Step-by-step explanation:
Given that:
Number of parrots shipped = 8
Number of defective parrots = 2
Number of Random samples tested = 4
Number of healthy parrots = 8 - 2 = 6
Probability that first 3 parrots are healthy:
P(1st parrot) * p(2nd parrot) + p(3rd parrot)
P = (number of required outcomes / number of total possible)
USing sampling without replacement :
P(1st parrot healthy ) = 6/ 8 = 3/4
P(2nd parrot healthy) = 5 / 7
P(3rd parrot healthy) = 4 / 6 = 2/3
P(first 3 parrots being healthy) :
(3/4) * (5/7) * (2/3) = 30/84 = 5 / 14
HEEELPPPP 20 POINTS + BRAINLIEST EASY MATH HELP
Given the functions f(x) = 4x2 - 1, g(x) = x2 - 8x + 5, and h(x) = -3x2 - 12x + 1, rank them from least to greatest based on their axis of symmetry.
g(x), h(x), f(x)
f(x), h(x), g(x)
g(x), f(x), h(x)
h(x), f(x), g(x)
Answer:
whats the question??
Step-by-step explanation:
Answer:
h(x), f(x), g(x)