The diameters of trees at a nursery are Normally
distributed with a mean of 2.5 inches and a standard
deviation of 0.5 inches.
X-
Calculate the Z-score for a tree that has a diameter of
1.83 inches. Round the Z-score to the nearest
hundredth, if necessary.
The Z-score for a tree that has a diameter of 1.83 inches
is about...?
Answer:
-1.34
Step-by-step explanation:
If x=2, what is the value of y in the equation y=3x−1
A. y=3
B. y=-5
C. y=-3
D. y=5
please help fast please
Answer:
D.
Step-by-step explanation:
If y=3(2)-1, then y=6-1, therefore y=5
I need help on this please
Answer:
No
Step-by-step explanation:
1+2(7) <_ 10
15<_10
nope
Jada grew 12 plants with 6 seed packets.How many seed packets does Jada need to have a total of 14 plants in her backyard.Assume the relationship is directly proportional
Answer:
7 seed packets
Step-by-step explanation:
Think about it like this:
If 12 ÷ 6 = 2, then 14 ÷ 2 = 7.
Write the equation of a line in slope-intercept form.
2y = 3х + 2
what are the coordinates of point B?
Answer:
3,3
Step-by-step explanation:
the coordinates of point B are (3,3)
Ivan and Polina have each drawn a conclusion about multiplying negative fractions. Ivan: The product of an even number of negative fractions is always positive. Polina: The product of an odd number of negative fractions is always negative. Whose conclusion is correct? Ivan only Polina only both Ivan and Polina neither Ivan or Polina
Answer:
Both are correct
Step-by-step explanation:
To check the validity of their statements, we shall be using direct examples
For Ivan , we can have an example of his assertion as follows;
-1/2 * -1/3 = 1/6
For Polina, we can have
-1/2 * -1/3 * -1/4 = -1/24
We can see from the above that both of them got their opinions correctly as there are no exceptions to the above
Answer:
both Ivan and Polina
Step-by-step explanation:
9 x 10^2 is how many times as much as 3 x 10^-2?
Answer:3*10^4
Step-by-step explanation:
3 multiply 10 to the 4 power (positive)
please help thank you
Answer:
k=12
Step-by-step explanation:
hope this helps :))
Miss Mason decided to give a test with 90 points and 25 questions multiple-choice questions are worth three points and we’re problems are worth four points how many word problems were on the test
Answer:
3.75
Step-by-step explanation:
90 points total
25 multiple choice worth 3 points is 75 points for multiple choice
90-75=15
15/4=3.75 word problems
The endpoints of PQ are P(-3, 1) and Q(4, 25) Find the midpoint of PQ
Answer:
(-1, 14.5)
Step-by-step explanation:
Well there is a mid-point formula that looks like this:
m = ((x1+x2)/2) , ((y1+y2)/2)
So if we input our two points into the formula we get this:
m=((-3+1)/2) , ((4+25)/2)
Which can be simplified to get:
m=(-1, 14.5)
So these are your coordinates
2,3,5,7,11,13 conjecture
Answer:
The primes up to 50 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43 and 47. The sequence of gaps—the differences between each prime and the next—is 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 6, 4, 2 and 4. The number 1 appears only once because all primes except for 2 are odd. The rest of the gaps are even numbers.
The conjecture which could be inferred from the sequence is that it is a list of prime numbers.
From the sequence given : 2, 3, 5, 7, 11, 13
All values in the sequence are prime numbers.
Prime numbers are numbers which have only two divisors which are 1 and the number itself.
Divisors of :
2 = 1 and 2
3 = 1 and 3
5 = 1 and 5
7 = 1 and 7
11 = 1 and 11
13 = 1 and 13
Hence, the conjecture which could be inferred from the sequence is that, the numbers are prime numbers.
Learn more : https://brainly.com/question/9315685
What is 9x-7=-7 ?????
Answer:
when we stop 9x then
7 will go another side so,.9x=7
and when X is stoppedbit will be=7/9
Answer:
[tex] \sf \: x = 0[/tex]
Step-by-step explanation:
Now we have to,
→ Find the required value of x.
The equation is,
→ 9x - 7 = -7
Then the value of x will be,
→ 9x - 7 = -7
→ 9x = -7 + 7
→ 9x = 0
→ x = 0 ÷ 9
→ [ x = 0 ]
Hence, the value of x is 0.
PLEASE HELP! 40 POINTS AND WILL MARK BRAINLIEST.
A hot air balloon is 750 meters above the ground and begins to descend at a
constant rate of 25 meters per minute. The function f(x) = 750 - 25x represents the
height of the hot air balloon after x minutes.
a) Find and interpret the x- and y-intercepts for this situation
b) Graph the situation
Answer:
I know this is not really answering your question but I found this PDF and it had a similar question to yours
What is the sample mean of the data set? Round to the
nearest hundredth
1
33
What is the sample standard deviation of the sample?
Round to the nearest hundredth
2
34
3
42
4
36
5
39
6
36
7
39
8
40
9
44
Answer:
38.11 and 3.66
Step-by-step explanation:
The sample mean and standard deviation for the given data are 38.11 and 3.66 respectively.
What is the mean absolute deviation?The average distance between an observation's mean and its variance is shown by the mean absolute deviation, a measure of variability. mean makes understanding simpler by using the data's original units. A wider deviation from the average is reflected by larger values. The mean absolute deviation is sometimes referred to as the average absolute deviation and the mean deviation.
The mean is the average of the data set and given by
Mean = sum of all the data sets/number of data set
Mean = (33 + 34 + 42 + 36 + 39 + 36 + 39 + 40 + 44)/9
Mean = 38.11
Now standard deviation is given by
[tex]s = \sqrt{\frac{1}{N-1} \sum_{i=1}^N (x_i - \overline{x})^2}[/tex]
Where N is the number of data while the x bar is the mean.
So by using the formula,
Standard deviation = 3.66.
Hence "The sample mean and standard deviation for the given data are 38.11 and 3.66 respectively".
For more information about mean absolute deviation,
brainly.com/question/10528201
#SPJ2
what is 6(x+-2) simplify to
Answer:
6 −12
Step-by-step explanation:
6(−2)
6−12
6x−12
Input 1 2 3 4 output -10 14 18 function or not
Answer:
function
Step-by-step explanation:
no multiplying numbers
i need help 10 points plz help
Answer:
$15.10 per hour
Step-by-step explanation:
105.70÷7= $15.10 per hour
15. A football team gains an average of 6 yards per play. How many yards have they gained after 4 plays? Write a number sentence to show your answer.
Answer:
24 yards
Step-by-step explanation:
HELP HAVING A BAD DAY
Graph the line given by the equation.
2y=-3x
Answer:
u should never have a bad day just keep grinding you going to be who u want to be 1 day u should never feel down and the answer is -3/2 is your slope
Step-by-step explanation:
Completa la siguiente sucesión y encuentra su regla general. -10, -5, ___, ___, 10,... Regla general: Por favor es urgente, no le entiendo muy bien
Answer:
0,5
Step-by-step explanation:
add 5 each time
What expression is equivalent to
14
−
17
?
answer:
32
Step-by-step explanation:
A skydiver falls 60 feet in five seconds. How far does the skydiver fall per
Second
Answer:
12 feet
Step-by-step explanation:
60/6 = 12
Answer:
8 feet per 1 second
(without drag or windcurrents)
Step-by-step explanation:
60÷5=8
What are the Factors of 32 and 72?
Answer:
The factors of 32 are 32, 16, 8, 4, 2, 1. The factors of 72 are 72, 36, 24, 18, 12, 9, 8, 6, 4, 3, 2, 1. The common factors of 32 and 72 are 8, 4, 2, 1, intersecting the two sets above.
plz mark brainliest :DD
Answer:
The gcf of 32 and 72 can be obtained like this: The factors of 32 are 32, 16, 8, 4, 2, 1. The factors of 72 are 72, 36, 24, 18, 12, 9, 8, 6, 4, 3, 2, 1. The common factors of 32 and 72 are 8, 4, 2, 1,
Step-by-step explanation:
-4x-3(x+8) what’s the answer
Answer:-7x-24
Step-by-step explanation:
Answer:
-7x-24
Step-by-step explanation:
not sure if youre looking for what x equals or just distribution of -3
-4x-3(x+8)
distribute -3 to x and 8 (multiply)
-4x-3x-24
add like terms
-7x-24
A pizza with a 10-inch diameter costs $6.99 and is cut into 6 slices, what is the cost per slice?
Answer:
$1.165
Step-by-step explanation:
$6.99/6 slices = 1.165
solution
n/8+1/2 = -3 1/2
Answer:
n= -32
Step-by-step explanation:
A bakery sells 15 cupcakes for $18. Calvin wants to buy 1 cupcake. Which proportion can Calvin use to find the cost?
Answer:
the distributive properties
Step-by-step explanation:
PLEASE HELP! Will give brainliest also please show your work
Answer:
-2, 8, 6
Step-by-step explanation:
x-3y+3z=-8
3x+2y-z=4
7x+y+2z=6
3x+2y-z=4
10x+3y=4
13x+5y=14
y=8
x=-2
3(-2)+2 x 8 - z = 4
z=6
Finn is 4 years older than Jake. Five years ago, the sum of their ages was 48.
Answer jake is 29
Step-by-step explanation:
Answer:
Step-by-step explanation:
let the age of Jake be=x
let the age of Finn be=x+4
Five years ago:
age of Jake +age of Finn=48
x+x+4-5=48
2x-1=48
2x=48=1
2x=49
x=49/2
x=24.5
therefore, age of Jake=x=24.5
therefore, age of Finn=x+4=24.5+4=28.5
hope it helps
