help me ;-;(with image)
Answer:
12
Step-by-step explanation:
A : B
1 : 3
Since we know that B is 3 times of A and A is 4...
1 unit = 4
3 units = 4 x 3 = 12
a) The mean is _____. *
b) The standard deviation is _____. *
c) Approximately _____ % of the data values fall between 223 and 237. *
This is a required question
d) Approximately _____ % of the data values fall between 216 and 244.
e) Approximately _____ % of the data values fall between 209 and 251.
Answer:
If all of the observed values in a sample are close to the sample mean, the standard deviation will be small (i.e., close to zero), and if the observed values vary widely around the sample mean, the standard deviation will be large. If all of the values in the sample are identical, the sample standard deviation will be zero.
Step-by-step explanation:
Suppose a geometric sequence has a common ratio of 5. What is the next term after 9?
Answer:
45Step-by-step explanation:
[tex]a_{n+1}=a_n\cdot r[/tex]
So, if the common ratio is 5 the next term is always 5 times the previous term.
9·5 = 45The radius of a circle is 7 miles. What is the circle's area?
Use 3.14 for .
Answer:
A≈153.94mi²
Step-by-step explanation:
A = πr2 = π · 72 ≈ 153.93804mi²
Can you maybe put up the explanation too and not just the answer? Thank you
Hope it helps you! .........
54) The two-way table below shows the number of hours students studied and whether they studied
Independently or with a study group. What is the relative frequency of students that studied
Independently for more than 2 hours to the total number of students that studied independently?
Answer:
6
Step-by-step explanation: not 6
A bag of apples weighs 7 4/10 pounds.a crate of bananas is 5 times as heavy as the apples. What is the total weight of the fruit
Answer:
44.4
Step-by-step explanation:
7 4/10x5=37
37+7 4/10=44.4
5
What is the area of the figure?
25 mi
12 mi
20 mi
18 mi
8 mi
43 mi
square miles.
Answer:
when a car speed is 24 km/hr a journey takes 80 minutes what must the speed be for the same journey to take 60 minutes?
Answer:
32 km/ hr
Step-by-step explanation:
Given that :
Speed of car = 24km/ hr
Time taken =. 80 minutes = 80 / 60 = 1.33333 hours
The distance traveled :
Speed * time
24 km/hr * 1.333333 = 32 km
Speed required to complete 32 km. Journey in 60 minutes = 1 hour
Speed = distance / time
Speed = 32 km / 1 hour
Speed = 32 km/ hr
Which set of data points could be modeled by a line of best fit that is a decreasing linear function?
A. {(0, 0), (1, 8), (2, 15), (3, 22), (4, 30)}
B. {(0, 5), (1, 6), (2, 10), (3, 16), (4, 28)}
C. {(0, 50), (1, 42), (2, 33), (3, 25), (4, 16)}
D. {(0, 64), (1, 60), (2, 52), (3, 39), (4, 22)}
Answer:
c I do believe
Step-by-step explanation:
can you help me with this question is the correct answer b
Pablo grew a plant for school and recorded the growth of the plant
each week. He wrote ordered pairs to organize his data: (1, 5), (2, 8),
(3, 8), (4, 11), (5, 15).
Is this relation a function? Explain.
Answer:
Yes. the relation is a function
Step-by-step explanation:
Here, we want to check if the relation is a function
if a relation is a function, then every x-values (input values) will have one y-value
No two output values (y values) will have a single x value
Looking at the pairs;
It is a function
Although two x values have same y value; 2 and 3 to 8; no two y values have same x value
Hence, the ordered pairs is a function
please help me !!!!!!!!!!!!
Answer:
The answer is D
Step-by-step explanation:
A 180 rotation on 1,1 which is the center will rotate it onto itself.
If you answer this you're HOT!!!!!
For the following question, determine whether the two are similar. If so, give the scale factor of the figure to the larger figure
Answer:
Yes, 1:3.
Step-by-step explanation:
Each of the numbers on figure 2 are 3 times the number on figure 1.
Which of these expressions is equivalent to −2(x−5) ?
Multiple choice question.
A)
−2x−5
B)
−2x+5
C)
−2x+10
D)
−2x−10
Plzs Help I give someone a brainliest
Answer:
C.
Step-by-step explanation:
-2(x - 5)
= -2*x - 2*-5
= -2x + 10.
You deposit $30,000 into a savings account with an interest rate of 2.5% compounding quarterly for 10 years.
Part A- how much interest do you earn in 10 years?
Part B- how much money will be your account at the end of 10 years.
Answer:
30,000 divided by 1.23/100 then multiply 30,000 by 0.0123 the answer is 369, hope this helps
Step-by-step explanation:
Write the equation of the line that is parallel to the line -3x+2y=10 and goes through the point (4,7).
Answer:
y=-3/2x+13
Step-by-step explanation:
Convert to slope-intercept form (y=mx+b):
-3x+2y=10
-3x-10+2y=0
-3x-10=-2y
-3/2x-5=y
y=-3/2x-5
Parallel lines have the same slope, so the slope of the equation will be m₁=m₂ where -3/2=-3/2
Solving for b, the y-intercept, we get:
y=-3/2x+b (Equation so far)
7=-3/2(4)+b [Plugging in (4,7)]
7=-12/2+b
7=-6+b
13=b
Therefore, the equation of the line that is parallel to the line -3x+2y=10 and goes through the point (4,7) is y=-3/2x+13
Which number makes the number sentence true?
0.64 < ____
A. 0.6
B. 0.7
C. 0.63
D. 0.07
Answer:
The correct answer is letter B, 0.7
Step-by-step explanation:
Hope this help
Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
Answer:
1. b & d
2. d
Step-by-step explanation:
no fractions, decimals can be in a standard form equation
find the value of x
−8(x−6)=32
Answer:
x = 2
Step-by-step explanation:
-8(x-6) = 32 (distribute)
-8x+48 = 32 (subtract 48 from both sides)
-8x = -16 (divide)
x = 2
Answer:
x = 2
Step-by-step explanation:
Divide both sides :
−8(x−6)=32
Divide both sides of the eqaution by -8 :
x - 6 = -4
Move the constant to the right :
x - 6 = -4
Move the constant to the right - hand side and change its sign :
x = -4 + 6
Calculate :
x = -4 + 6
Calculate the sum :
x = 2
Therefore, the answer is x = 2
Miranna teaches gymnastics lessons at summer
camp. She is paid $12.50 per hour.
If Miranna were offered a raise of 100% of her hourly
rate, how much would she be paid?
chelsey needs 18 3/4 grams of chemical x for a science project she found 5 1/2 grams in one container and 11 1/4 grams in another container how much more does she need
Answer: C=2
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
5 1/2 + 11 1/4 = 16 3/4
18 3/4 - 16 3/4 = 2
Mark pays $4.68 for 0.72 of a pound of almonds. How much is one pound of almonds?
Answer:
$6.50/lb
Step-by-step explanation:
4.68/0.72 = $6.50/lb
The table shows the bowling scores for Bill and Tonya in a given game set.
Who is a better bowler based on the median scores, and why?
Pls no links
Find the nth term of this quadratic sequence 3,8,15,24,35...
Answer:
n^2 + 2n.
Step-by-step explanation:
n = 1 2 3 4 5
term t = 3 8 15 24 35
Diffs = 5 7 9 11
2 2 2 - so the nth term contains n^2.
n^2 = 1 4 9 16 25
t - n^2 = 2 4 6 8 10
This is an arithmetic sequence with nth term = 2 + (n-1)2 = 2n
So the nth term of the quadratic sequence = n^2 + 2n.
Write two solution points for the equation y=3x-1 when x us 1 and x is 2
Answer:
x=1. (1, 2)
x=2. (2, 5)
Step-by-step explanation:
i hope this helps :)
Hurry 40 minutes left
Kendra is determining the distance between the points (6, 8) and (2, –3). Her work is shown below.
Step 1: d = StartRoot (6 minus 2) squared + (8 minus 3) squared EndRoot
Step 2: d = StartRoot (4) squared + (5) squared EndRoot
Step 3: d = StartRoot 16 + 25 EndRoot
Step 4: d = StartRoot 41 EndRoot
Which best describes the accuracy of Kendra’s solution?
Her solution is correct.
Her solution is incorrect. She subtracted before squaring.
Her solution is incorrect. She made an error when substituting the x-values into the equation.
Her solution is incorrect. She made an error when substituting the y-values into the equation.
Answer:
Her solution is correct
(6-2)^2 + (8-3)^2
=(4)^2 + (5)^2
=16 + 25
=41
An uber charges a flat rate of $6 plus $1.25 per mile. Kayla can spend no more than $27.50. If she wants to tip her driver $4, what is the greatest number of miles she can uber?
Answer:
14
Step-by-step explanation:
to determine the answer
Subtract the amount she wants to tip from the total amount of money she wants to spend
$27.50 - $4 = $23.50
Let m = total miles
the total miles she intends to drive can be determined using this equation
$23.50 = $6 + $1.25m
Collect like terms
$23.50 - $6 = $1.25m
$17.50 = £1.25m
Solve for m
17.50 / 1.25 = 14
I need help! Answer this please! I will give brainliest!! ASAP
Answer:
it's 9 or 21
Step-by-step explanation:
Select the TWO numbers that are solutions to the equation x2 = 49.
A. 49
B. 7
C. -49
D. 2
E. -7
Answer:
x = ±7
x=7, -7
Step-by-step explanation:
x^2 = 49
Take the square root of each side
sqrt(x^2) = sqrt(49(
x = ±7
CAN SOMEONE PLEASE HELP ME
Answer:
60 degrees
Step-by-step explanation:
This is an equilateral triangle. Each angle has the same measure. There are three angles. So: 180 ÷ 3 = 60.
Answer:
60
Step-by-step explanation:
The figure shown is a triangle
To be more specific an equilateral triangle.
We know that this is an equilateral triangle because all of the side lengths are congruent ( indicated by the little mark on each side ) and if each side length is congruent then each angle is congruent.
Because the sum of the angles in a triangle adds up to equal 180 we can simply find the measure of each angle by dividing 180 by 3
180/3=60
so every angle = 60 degrees
Therefore your answer is 60
