Which of the following would be the best method for investigating the correlation between the hibernation habits of bears and the temperature for 90 days prior to their hibernation?
A. Survey
B. Observational study
C. Randomized experiment
D. Experimental study
Answers
Answer: Observational study
Step-by-step explanation: I just took the test
Answer:
observational study
Related Questions
Consider the function below.
5y=18^x+9
Complete the statement below to describe the given function. They y-intercept of the function is (___). The graph of the function initially (___) and then (___).
First blank answers:
(2,0)
(0,2)
(-2,0)
(0,-2)
Second blank answers:
Increases rapidly
Increases slowly
Decreases rapidly
Decreases slowly
Third blank answers:
Increases slowly
Decreases rapidly
Decreases slowly
Increases rapidly
Answers
Answer:
(0,2), increases slowly, increases rapidly
Step-by-step explanation:
I just took the test
if a loan is taken out for $991 at 3% and cost 267.57 dollars how long was the loan for
Answers
Answer:
9 years.
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year,
then, solving our equation
t = 267.57 / ( 991 × 0.03 ) = 9
t = 9 years
The time required to
accumulate simple interest of $ 267.57
from a principal of $ 991.00
at an interest rate of 3% per year
is 9 years.
1.) Eric is twice as tall as Kevin. Kevin is also three feet shorter than Eric.
a. Use mathematical sentences to represent all of the information in this problem.
b. Find each boy's height. HINT: Can you represent both boys with ONE variable?
Answers
Which is greater 0.9 or 0.875 ?
Answers
This is for today can someone help me!!
Answers
Answer:
It's the third one!!
Step-by-step explanation:
grs
Hello, look at the picture I established at the bottom I will be giving you thanks, 5 stars, and brain least, Thank you. Have a nice afternoon!
Answers
Answer:
I think B 10 diamond and 12 circles
Step-by-step explanation:
Someone pleaseee help me on this :( what is the slope of the line that contains these points.
Answers
Answer:
6/1
Step-by-step explanation:
the reason is because the x is increasing by 1 which is the denominator, and the y is also increasing by 6 which is the numerator. if you were to imagine those lines on a graph you would get a straight line and use rise over run to see that the slop is in fact 6/1
According to exponent rules, when we multiply the expressions we __ the exponents
Answers
Answer:
Add
Step-by-step explanation:
Which of the following situations are equal to 90%? Select all that apply. A) 18 out of 24 B) 18 out of 20 C) 36 out of 40 D) 54 out of 60 E) 81 out of 90
Answers
C)36 out of 40
Bob. nmmnkgfdt
Answer:
Option b,c,d and e are right
Step-by-step explanation:
a ) 18 / 24 x 100 = 75 %
b) 18/ 20 x 100 = 90%
c) 36/ 40 x 100= 90%
d) 54/ 60 x 100 = 90%
e) 81/90 x 100 = 90%
I hope im right!!! ;)
A car dealership pays $8,550 for a car. They markup the price by 20.4% to get the retail price. What is the retail price of the car at this dealership?
Answers
Answer:
$10294.20
Step-by-step explanation:
8550 increase 20.4% =
8550 × (1 + 20.4%) = 8550 × (1 + 0.204) = 10294.2
please help asap!!!!
Answers
Answer:
3.14mm
Step-by-step explanation:
C = 2 pi r
Cindy bought 5 dresses for $20 each and 3 pairs of shoes for $20 each. She used this expression to calculate the total amount she spent.(5 × 20) + (3 × 20) What is another expression to calculate the total amount spent?
Answers
Answer:160 dollars
Step-by-step explanation: 5x20 is 100 plus 3x20 is 60 which makes 160
Two planes A and B start from the same place and move in different directions making an angle of 50° between them the speed of plane A is 200 mph and the speed of plane B is 300 mph the two planes are blank miles apart after one hour?
Answers
Answer:
The distance between them is 230.65 miles
Step-by-step explanation:
Here we use the Cosine formula
[tex]a^2 = b^2 + c^2 - 2bc\ cos\ A\\\\a^2 = 200^2 + 300^2 - 2\times 200\times 300cos50^{\circ}\\\\= 40,000 + 90,000 - 120,000cos50^{\circ}\\\\= 130,000 - 120,000 \times 0.64\\\\= 130,000 - 76,800\\\\a^2= 53,200\\\\a = \sqrt{53,200} \\\\= 230.65\ miles\ per\ hour[/tex]
Now the distance for one hour is
= 230.65 ÷ 1
= 230.65 miles
HELP FAST! WILL GIVE BRANLIEST
Answers
Answer:
70 degrees
Step-by-step explanation:
uvt = 60 degrees bc 180-120 =60
60+ 50 = 110
180-110 degrees = 70
To Be Honest I Dont Know
I'm just here for the points :P
heheheehe
35
53"
X
Find the value of x. Round your answer to the nearest tenth.
Answers
Answer:
x = 26.4
Step-by-step explanation:
Here, we want to get the value of x
To get this, we are to use the appropriate trigonometric ratio
From the question, we have the opposite and the adjacent
The trigonometric ratio to use in this case is the tangent
Mathematically;
Tan 53 = 35/x
x = 35/tan 53
x = 26.37
which is 26.4
6 of 12
© Dale is following this recipe to make shortbread fingers.
Dale uses 150 g of butter.
How many shortbread fingers does he make?
Recipe: Makes 20 fingers
125 g butter
55 g sugar
180 g flour
Answers
An athletic director pays $60 for 12 sun visors for the softball time. How much more will the athletic director pay to buy 15 sun visors? The athletic director will pay $
to buy 15 more visors. fill in the blank
Answers
Answer:
he pays 75 dollars for 15 visors
Step-by-step explanation:
Solve for x. -3/4 (x+2) =6
Enter your answer in the box.
Answers
Answer:
x= -10
Step-by-step explanation:
-3/4 (x+2) =6
multiply by -4/3
(x+2) = -8
Subtract 2
x= -10
Hope that helps!
Answer: x=30
Step-by-step explanation:
Which of the following regular polygons circumscribed about a circle provides the best estimate for the area of that circle?
Dodecagon
decagon
nonagon
octagon
Answers
I will mark you as the brainiest if you get this correct Thx so much xxx
Answers
Answer:
the answer is 50/9
other forms
5 5/9
Answer:
5 5/9
Step-by-step explanation:
8+7*6
----------
3*3
8+42
-----------
9
50
----------
9
5
5 -
9
What is the distance between the points (2, 3) and (5, -4)?
10 units
3.7 units
6.3 units
7.6 units
Answers
Answer:
3.7
Step-by-step explanation:
2-5=3 and 3- -4=7
Helpppp.....................................................
Answers
Answer:
6 and 8 are yes
Step-by-step explanation:
-4 and -6 are no
Answer:
sorry for this answer
Step-by-step explanation:
Do you have PC ?
Please help with this one i will glady appreciate it ASAP :)
Answers
Answer:
d. both b and c are not functions, and a is just a chart, not a function.
Which does NOT represent the interior angle measures of a triangle?
O A. 5°, 75°. 100°
B. 10°,80°, 90°
OC. 20°, 60°, 100
O D. 45°, 45°, 45.
ос
E 50°, 509,80"
Answers
Answer:A
Step-by-step explanation:
Interior angles of a triangle ALWAYS have to be equal to 180
The sum of A is 180, however, those angles wont work because they have to be more close to eachother for it to be possible
The Triangle Inequality Theorem states the longest side must be shorter than the sum of the other 2 sides
£16.80 in the ratio 2:1
Answers
Answer:
1u--> 5.60
2u--> 11.20
Step-by-step explanation:
3u--> 16.80
1u--> 5.60
2u--> 11.20
£16.80 in the ratio 2 : 1
add both sides of the ratio together to get 3
now divide £16.80 by 3 to get £5.60
now put that £5.60 into
2 : 1 £5.60 x 2 : £5.60 x 1 £11.20 : £5.60How many quarts are in 10 cups
Answers
Answer:
There's 2.5
Step-by-step explanation:
4 cups is equal to 1 quart
So that means 8 cups is equal to 2 quarts
If we add 2 more cups then we would add 0.5 more quarts.
This means that 10 cups is 2.5 quarts.
Answer:
2.5 quarts
Step-by-step explanation:
since there are 0.25 quarts in one cup. you have to multiply 2.5 by 10. hope this helps*
Please help! 58 points for both questions and explain how to get the answer!
Answers
Answer:
number 2 is c
number 1 is d?
Step-by-step explanation:
because if it a has been 1 minute(m=1) the 35(1)=w --> w=35 for for one minute there is 35 words 35m=w
for 1 i cannot see, but if d says 3/4 and x=3/4 then d is the answer
Answer:
(For your second question.):
35w=m
Step-by-step explanation:
Why?
It states in the problem itself that miles types 35 words per minute.
"w" stands for words
'm' stands for minutes.
The constant rate relies on the clearest data after all. The equation itself is enough!
Remember: 1 min = 60 seconds.
Emilia pays $24 to rent a boat at the lake for up to 6 hours. She constructs the inequality and number line below to represent the number of hours, x , she can use the boat.
Are emilias inequality’s and number line correct? Explain your reasoning by completing the statements. Click the arrow to choose an answer from each menu
Answers
Answer:The Answer is 4
Step-by-step explanation:
24/4=4
Emilia pays $4 dollars per hour
A construction crew is building a two story house, but they have not built the staircase between the floor yet. The height of the staircase is 12 feet, the base of the stairs will be 6 feet from the wall. How long does the temporary ramp need to be to the nearest tenth of a foot?
Answers
Answer:
13.4feet
Step-by-step explanation:
The set up forms a right triangle.
Given
Height of the staircase h = 12 feet
Base of the stairs b = 6feet
Required
Length of the ramp l
Using the pythagoras theorem
l² = h² + b²
l² = 12²+6²
l² = 144 + 36
l² = 180
l = √180
l = 13.42 feet
Hence the length of the ramp to the nearest tenth is 13.4feet
Use the GCF (Greatest common factor) to factor the expression 2x + 8
Answers
Answer:
2(x+4)
Step-by-step explanation:
to factor an expression, you need to take out the gcf.
the answer would be
2(x+4)