Your teacher has told you that she will drop your "worst" test.
On Test 1 you scored 90 (mean=88, SD = 4)
On Test 2 you scored 88 (mean=79, SD=3)
Which test was "worse"?
Test one would be the worst one
n − 9.02 = 3.85
what is N?
Answer:
12.87
Step-by-step explanation:
Answer:
n = 12.87
Step-by-step explanation:
Find the simple interest. Round to the nearest
cent if necessary.
$1450, 32%, 3 months
Answer: $116
Step-by-step explanation:
Simple interest is calculated using the formula = PRT
where,
P = principal = $1450
R = rate = 32%
T = time = 3 months = 3/12 = 1/4 = 0.25
Interest = PRT
= 1450 × 32% × 0.25
= 1450 × 0.32 × 0.25
= $116
The simple interest is $116
PLEASEEEEEEEE HELLLP MEEE!!! GIVING 95 POINTS!!!
Answer:
1) markdown
2) percent error
3) principle
4) percent change
Step-by-step explanation:
markdown
percent error
principle
percent change
Hope I could help <3
A computer programmer worked for 5 hours and earned $25, which is a rate of $_ Per hour
Answer:
They earned 5 dollars per hour
Step-by-step explanation:
Take the amount earned and divide by the number of hours
25/5
5
They earned 5 dollars per hour
Someone please help me
Answer:
a=17 angles= each other = 64
Step-by-step explanation:
I need HELP ASAP! It’s due today
Answer:
28 cubs
Step-by-step explanation:
Since one and a half bear produces one and a half cub, then 6 bears will produce 6 cubs in one and a half days.
We need to find 7 days, though but we have the rate for six bears for 1.5 days which 6 bears one a half day.
What is the rate for a day?
6/1.5 =
6 bears produce 4 cubs a day.
Now just do 4 x 7
4 x 7 = 28
Therefore, 6 bears produce 28 cubs in 7 days.
Calculate the distance between Points A and B.
A.4.5
B.7.1
C.7.8
D.9.2
Answer:
7.8 units separate the points A and B.
Step-by-step explanation:
Going from B to A, x increases by 6 (this is the horizontal side of the triangle formed by vertices A and B), and y increases by 5. Applying the Pythagorean Theorem, we get
d = √(6² + 5²), or √(61, which is approximately 7.8, the desired distance.
I need help fast please and no fies
Answer:
x=-16
Step-by-step explanation:
from x=-3 to get to y=12 u need to multiply x=-3 by -4 to get to 12 so for y=64 u need to divide by -4 which equals x=-16
Answer:
x is (-16)
Hope it helps!!!
What are all of the steps to get 17=5y-3
Answer:4
Step-by-step explanation: 17 = 5y-3
Add 3 to both sides
17 turns into 20
3 is gone
20=5y
Divide by 5 on both sides
20 divided by 5 =4
5 crossed out
4=y
There are twenty classes at Northwestern Middle School and twenty classes at Southeastern Middle School. The number of students in each class at each school is shown in the dot plots below.
Number of Students in Each Class at Northeastern Middle School
A dot plot. A number line going from 20 to 29 labeled Number of Students. There are 3 dots above 20, 5 above 21, 7 above 22, 4 above 23, 1 above 24, and 0 above 25, 26, 27, 28, and 29.
Number of Students in Each Class at Southeastern Middle School
A dot plot. A number line going from 20 to 29 labeled Number of Students. There is 1 dot above 20, 2 above 21, 2 above 22, 4 above 23, 3 above 24, 2 above 25, 2 above 26, 2 above 27, 1 above 28, and 1 above 29.
Michela says that the modes of the two data are the same so the median and mean must also be the same. What is Michela’s error?
The modes are not the same.
The means and medians are not the same.
Only the modes and the medians are the same.
Only the modes and the means are the same.
Answer:
The means and medians are not the same. Or B
Step-by-step explanation:
Hope this helped :)
Answer:
B: The means and medians are not the same.
Step-by-step explanation:
If you calculate the ranges of median and mean you will find the differences.
The diameter of a circle is 18 cm. Find its area in terms of pi
Answer:
I love algebra anyways
the ans is in the picture with the steps
(hope it helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Find the number that is exactly half way between -4 and 10
Answer:
7 as a halfway of a line
3 if you were using points on a graph
Step-by-step explanation:
10--4/2=7
use midpoint formula for 3
The number that is exactly halfway between -4 and 10 is 3
The distance between two point is the amount of length between the two points.
Midpoint of -4 and 10 is 10 - (-4) gives 10 + 4
The distance between -4 and 10 is 14 units
Halfway of the length between -4 and 10 is 14 /2 (7)
The number that is exactly halfway between -4 and 10 = -4 + 7 or 10 - 7 = 3
The number that is exactly halfway between -4 and 10 is 3
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What steps to get the answer for -4x+7=11
Answer:
-4x=4
Step-by-step explanation:
-4x+7=11 subtract 7 add to the 11 answer-4x=4
Answer:
x=-1
Step-by-step explanation:
Move all terms not containing x to the right side of the equation.
Subtract 7 from both sides of the equation
-4x=11-7
Subtract 7 from 11
-4x=4
Divide each term and simplify
x=-1.
Hope this helps :)
Plz mark brainiest!
4x+5y=60. what is the x and y intercepts? show work pls!!
Answer: (4,5)
Because I don't know another way I can solve
Step-by-step explanation:
Answer:
x-intercept: (15, 0)
y-intercept: (0, 12)
Step-by-step explanation:
1.) convert the equation to y=mx+b format
4x + 5y= 60
5y = -4x + 60
y = -4/5x + 12
2.) Now we know that "b" in the equation is the y-intercept. 12 is b so the y-intercept is 12.
3.) To find x intercept we will plug in y=0.
0 = -4/5x + 12
-12 = -4/5x
15 = x
Volume for 8 x 2 x 4
The perimeter of a rectangle is the same as the
perimeter of a square. If the area of this rectangle
is x^2 + 4x – 21 and the side lengths are integers,
find:
a. the perimeter of the rectangle
b. the area of the square
Answer:
a. 20
b. 25
Step-by-step explanation:
Let find the side lengths of the rectangle,
We can complete the square.
[tex] {x}^{2} + 4x - 21[/tex]
[tex] {x}^{2} + 4x = 21[/tex]
[tex] {x}^{2} + 4x + 4 = 25[/tex]
[tex](x + 2) {}^{2} = 25[/tex]
[tex](x + 2) = 5[/tex]
[tex]x = - 7[/tex]
or
[tex](x + 7)[/tex]
[tex]x = 3[/tex]
or
[tex](x - 3)[/tex]
This means the perimeter of is
2 times -7 equal 14
2 times 3 equal 6
14+6=20.
The side lengths of the square is equal so each side length will measure 5.
[tex] {5}^{2} = 25[/tex]
a company makes $10 000 in 2017. The projection of profit increase is fixed 40% from the previous year. Predict the company profit in 2019.
Answer:
19600
Step-by-step explanation:
For every year the profit increases by 40% so to figure out the profit from 2017 to 2018 you do 10,000*1.4 to and get 14,000. To get 2019's profit you do the same process, but use 2018's profit of 14,000 instead of 2017's profit to get 19,600.
25% of the tickets sold at a school carnival were early-admission tickets. If the school sold 272 tickets in all, how
many early-admission tickets did it sell?
Answer:
HEY! it is me I am going to put my questions here
Step-by-step explanation:
Which is the area of the parallelogram
Answer:
96
Step-by-step explanation:
formula is simple
just base times height
so 12 × 8 which is 96
96m² is your Answer:
Solution given:
base[b]=12m
height[h]=8m
we have
Area of parallelogram=b×h=12×8=96m²
Carmen has 2.4% as much money as Anna. How much money does Anna have a Carmen has $846?
Answer:
$20.30
Step-by-step explanation:
Anna has 846 dollars
Carman has 2.4% the amount that Anna has.
2.4% = 2.4 / 100
2.4/100 * 846 = 20 dollars and 30 cents. You lose the 0.004
The formula for determining the pressure, p, exerted
on an object at a depth, h, below the surface of a
liquid is p = s + dgh, where s is the atmospheric
pressure, d is the density of the liquid, and g is the
acceleration due to gravity. Which formula
represents h in terms of p, s, d, and g?
Answer:
p = s + dgh
p - s = dgh
(p - s) / dg = h
Answer = h= p-s/dg
The formula that represents the height "h" in terms of p, s, d, and g is expressed as (p - s)/dg
Given the formula for determining the pressure, p, exerted on an object at a depth, h, below the surface of a liquid expressed as p = s + dgh where:
s is the atmospheric pressure,
d is the density of the liquid, and;
g is the acceleration due to gravity
We are to make h the subject of the formula;
p = s + dgh
Subtract s from both sides
p - s = dgh
dgh = p - s
Divide both sides by dg
dgh/dg = (p - s)/dg
h = (p - s)/dg
Hence the formula that represents the height "h" in terms of p, s, d, and g is expressed as (p - s)/dg
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A process is stationary if: a. any collection of random variables in a sequence is taken and shifted ahead by h time periods, the joint probability distribution remains unchanged. b. there is serial correlation between the error terms of successive time periods and the explanatory variables and the error terms have positive covariance. c. there is no serial correlation between the error terms of successive time periods and the explanatory variables and the error terms have positive covariance. d. any collection of random variables in a sequence is taken and shifted ahead by h time periods; the joint probability distribution changes.
Answer:
B.any collection of random variables in a sequence is taken and shifted ahead by htime periods, the joint probability distribution remains unchanged
Step-by-step explanation:
In most of the time series techniques , there is usually a common assumption that data are stationary. A stationary process can be regarded as one that has properties such as variance mean, variance as well as autocorrelation structure not changed over time. The properties is independent as regards the time the series is observed.
✓ Time series that has trends or seasonality cannot be regarded as stationary, because the value of the time series which exist in different times will be affected by the trend and seasonality.
✓A white noise series can be regarded as stationary because the time you observe it does not matter, it will always look much the same at all point in time.
✓ It should be noted that process is stationary if any collection of random variables in a sequence is taken and shifted ahead by htime periods, the joint probability distribution remains unchanged
What two numbers have a product of 110 and a sum of -21?
Answer:
-11 and -10
Step-by-step explanation:
-11×-10=110
-11+-10=-21
Margo wants new carpet and a new wallpaper border for her bedroom. The room is 5.7 yards long and 6 7 8 yards wide. About how many square yards of carpet will she need? About how many yards of wallpaper border will she need?
Answer:
39.19 yards^2
25.15 yards
Step-by-step explanation:
To determine the squares square yards of carpet needed, we have to determine the area of the room
The room is shaped like a rectangle
area of a rectangle = length x breadth
5.7 x 6 7/8
To multiply, convert 6 7/8 to a decimal
to do this, divide 7 by 8. Add the value gotten to 6
5.7 x 6.875 =39.19 yards^2
To determine the yards needed for the border, calculate the perimeter of the room
Perimeter = 2 x (length + breadth)
2 x(5.7 + 6.875) = 25.15 yards
Ariana just started a running plan where she runs 7 miles the first week and then increases the number of miles she runs by 10% each week. If she keeps up this plan for 12 weeks, how many total miles would Ariana have run, to the nearest whole number?
Answer: sarah ran 150 miles in 12 weeks
Step-by-step explanation:
Russ plants seeds in 1/2 of his garden. If he planted sunflower seeds in 1/4 of that section, what part of the total garden should grow sunflowers?
Answer:
1/8
Step-by-step explanation:
part of the garden that is sunflowers=1/4 of 1/2=1/2*1/4=1/8 (in math of usually means multiplication ex. 50% of 100=0.50*100=50)
Answer:
1/8
Step-by-step explanation:
Ik im late but- Yeah its that
How many solutions can be found for the equation 12x + 8 = 10x + 18? (4 points)
a
No Solution
b
One
c
Two
d
Infinitely Many
Answer:
b
Step-by-step explanation:
Given
12x+ 8 = 10x + 18 ( subtract 10x from both sides )
2x + 8 = 18 ( subtract 8 from both sides )
2x = 10 ( divide both sides by 2 )
x = 5
The equation has one solution
Answer:
B
Step-by-step explanation:
verification
12 x 5 + 8 = 10 x 5 + 18
68= 68
since the answer is 68
it is the only one answer that you can get
Which of these nets can be folded to create a rectangular prism? Select all that work.
The figure in option (D), makes the rectangular prism when nets are folded.
What is rectangular prism?A three-dimensional solid form with six faces, including rectangular bases, is called a rectangular prism. A rectangular prism also a cuboid. A cuboid and a rectangular prism have the same cross-section.
In the given question, the nets are given,
When nets are folded, they create a rectangular prism.
From the given options,
In first three options, the base makes the rectangle, but the heights are not same, to make cuboid.
In option (D), the base makes the rectangle and the height of the all sides are equal, therefore, it creates a rectangular prism.
Hence, option (D) is correct option.
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Which expressions below are equivalent to
2(2x + 1)?
Select all that apply.
0 A. 4x + 2
O B. 2(1 + 2x)
C. 2(2x) + 1
0 D. 2x + 1 + 2x + 1
E. x + x + x + x + 1 + 1
Which expression is equivalent to the
Vesa
Answer:
A.4x+2
Step-by-step explanation:
distrubuve property,u multiply the numbers in the bracket by two.so,2x2=4 and 2x1=2 so 4x+2
