Answer:
A chi-squared test, also written as χ² test, is a statistical hypothesis test that is valid to perform when the test statistic is chi-squared distributed under the null hypothesis, specifically Pearson's chi-squared test and variants thereof.
I hope it's helpful!
Need help asap !! A toy rocket is launched from the ground. The height h (in feet) of the rocket t seconds after it is launched can be found with the equation: h=-16t²+128t. a)Find when the rocket will reach 112 feet and b)when it will land back on the ground.
Answer:
when it will reach 122 feet's is 16*16+128=384
if 1/2x + 3 = 3/4 - x, what is the Value of x?
Answer:
x=-2/9
Step-by-step explanation:
In a certain Algebra 2 class of 28 students, 14 of them play basketball and 19 of them
play baseball. There are 5 students who play neither sport. What is the probability
that a student chosen randomly from the class plays basketball or baseball?
Answer:
13/28
Step-by-step explanation:
Total number of students = 28
Number of students that play basketball = 14
Number of students that play baseball = 19
Number that play neither sport = 5
Number of students playing sports = 28 – 5 = 23
Number of students playing both basketball and baseball = 14 + 19 – 23 = 10
Number of students that play only basketball = 14 – 10 = 4
Number of students that play only baseball = 19 – 10 = 9
Number of students playing basketball or baseball = 4 + 9 = 13
P(a student chosen at random plays basketball or baseball) = 13/28
Samuel is offering a pair of boots with an original price of $80.Store A is offering a 25% discount off the original price of all boots. StoreB is offering a $10 discount off the original price of all boots.
What is the sum of the polynomials
Answer:
it's B
4m-24n+3
Step-by-step explanation:
photo math
Find x plss:))))))))
Answer:
180 - 90 = 90
half of 90 = 45
40 and 50??
Step-by-step explanation:
What are the x-intercept and y-intercept for this line: 5x − 3y = 15
Answer:
5x + 3y = 15 are (3,0) and (0,5).
Step-by-step explanation:
To learn how to find the x intercept, we will change the y for 0 and solve for x.
all the expressions that are equal to 45,000 ÷ 90.
Name this angle pleasseeee!!
Answer:
linear pair, adjacent, supplementary is your answer ☺️☺️☺️
ther are 9 thirds in 3 ones a multiply and divide equashon
Answer:
That is a division equation.
Step-by-step explanation:
PLEASE ANSWER FAST.
I HAVE BEEN SO CONFUSED!? :(
A cone is placed inside A cylinder. The cone has half the radius of the cylinder, but the height of each figure is the same. The cone is tilted at an angle so it’s peak touches the edge of the cylinders base. What is the volume of the space remaining in the cylinder after the cone is placed inside it?
can anyone solve this equation? (pls I really need it now)
a(x-b)=X
Answer:49
Step-by-step explanation:
Answer:
Solving for x: x= - ab/(1-a)
Solving for a: a= x/(x-b)
Solving for b: b=-x(1/a-1)
Which scatterplot shows the correct division for using the Area Method to draw the trend line?
Answer:
A
Step-by-step explanation:
Got it right
The correct division for using the Area Method to draw the trend line is shown by Option A.
What is a Scatter Plot ?A scatter plot is the plot that consists of data that is randomly spread and doesn't have a fixed pattern , A trend has to be determined from the data to understand the pattern.
The given scatter plot shows an upstream and a downstream , The correct division will be from the point where it start following a fixed pattern , Which is in the Option A attached.
Therefore The correct division for using the Area Method to draw the trend line is shown by Option A.
The missing Options are attached with the answer
To know more about Scatter Plot
https://brainly.com/question/13984412
#SPJ2
How many times larger is 9 x 10^4 than 3 x 10^2?
Answer: [tex]300[/tex] [tex]times[/tex]
Step-by-step explanation:
2. Find the quotient.
(18x445x310x439x-35)
[dividing symbol] (2x-5)
Answer:
Quotient → (9x³ - 5x² + 7)
Step-by-step explanation:
2x - 5)18x⁴- 45x³ - 10x² + 39x - 35(9x³- 5x²+ 7
18x⁴- 45x³
-10x² + 39x
-10x³ + 25x
14x - 35
14x - 35
0
Therefore, quotient will be → (9x³ - 5x² + 7)
a man uses 1/8 of his salary after tax on house rent, and a 3/5 on transport, food and other household items.
He then reserves 5/8 of the remainder on leisure and incidentals while saving the rest. if he saves$37135 every month. How much is his salary after tax.( round to the nearest whole number)
Answer:
let x be his salary after tax
house rent=1/8x
transport, food,=3/5x
total expenses, =1/8x + 3/5x
=29/40x
remainder amount =(x - 29/40x) = (1 - 29/40)x
leisure and incidentals,=5/8(1 - 29/40)x
amount saved = $37135
hence, the equation for his salary after tax is;
x = (29/40x) + 5/8(1 - 29/40)x + 37135
x = (29/40x) + (5/8x) - (29/64x) + 37135
x = (287/320x) + 37135
x - 287/320x = 37135
33/320x = 37135
x = 360096.97
to the nearest whole number, his salary after tax is $360097
Step-by-step explanation:
first represent his salary after tax by a variable
add the two expenses to get the total amount spent
substract the total amount spent from the variable to get the remainder
now fine 5/8 0f the remainder to get the amount spent on leisure and incidentals.
note that there was am amount that he saved.
base on this, we can now express an equation in terms of "
x" to calculate for his salary after tax
Need answer ASAP please help!
9514 1404 393
Answer:
31 square inches
Step-by-step explanation:
You can divide the shape into pieces several ways. The total area will be the sum of the areas of the pieces.
If we draw a horizontal line across the figure 2 inches up from the bottom, the figure is divided into a triangle and two rectangles.
The triangle has a base of 8 -3-2 = 3 inches, and a height of 4 -2 = 2 inches. Its area is ...
A = (1/2)(3 in)(2 in) = 3 in²
The rectangle below the line has a base of 8 inches and a height of 2 inches. Its area is ...
A = bh = (8 in)(2 in) = 16 in²
The rectangle above the line has a base of 3 inches and a height of 4 inches. Its area is ...
A = bh = (3 in)(4 in) = 12 in²
Then the total area of the figure is ...
(3 + 16 + 12) in² = 31 in² . . . . the area of the figure
Choose True or False for each statement.
58.07 > 58.4
Choose...
29.6 = 29.600
Choose...
140.23 < 140.203
Choose...
108.505 > 108.5
Choose...
Answer:
58.07 > 58.4 is false.
29.6 = 29.600 is true.
140.23 < 140.203 is false.
108.505 > 108.5 is true.
what is the answer and how
Answer:
-4°
Step-by-step explanation:
4 + 8 = 12
12 - 16 = -4
The temperature was -4 at 9pm
Please help me with this question
Answer:
10 i think
Step-by-step explanation:
theres 10 x's
Answer:
10?
Step-by-step explanation:
i just counted the x's
Suppose you drop a tennis ball from a height of 15 feet.
After the ball hits the floor, it rebounds to 85% of its
previous height. How high will the ball rebound after its
third bounce? Round to the nearest tenth.
Find the area of the circle. Round your answer to the nearest hundredth.
Answer:
176.71^2 in
Step-by-step explanation:
yeh
a rectangular room has an area of 131.25 square feet. The length of the room is 12.5 feet. what is the width, in feet, of the room?
Answer:
10.5 i think
Step-by-step explanation:
Please help :) I'm confused on this question.
What is 5/8 divided by 1/4
001
001
00
100
001
00
001
IN
A
0 1
Answer:
Exact form: 5/2
Decimal form: 2.5
Mixed number form: 2 and 1/2
Step-by-step explanation:
when you divide a fraction you keep, change, flip
Equation: 5/8 ÷ 1/4
keep 5/8 the same
change the divide symbol into a multipulcation symbol
flip 1/4 the other way, so it's 4/1 (it's a whole number now)
then just multiply across
Equation now: 5/8 × 4/1
h - 53 = 25 and
c -72 = 34
please i need help
Answer:
h=78
c=106
Step-by-step explanation:
Answer:
h = 78
c = 106
Step-by-step explanation:
h - 53 = 25
h = 25 + 53
h = 78
c - 72 = 34
c = 34 + 72
c = 106
Help me with this question please!,! (3/3)
Answer:
The first one = add three matches to the right side(on horizontal, two that or on top and bottom vertically.)
Second: Start with 5, and keep adding 3 until 26. 5 + 3+3+3+3+3+3+3
Or (26-5)/3 = 21/3 = 7
7 additions are needed so 7+1 = 8
Third: I believe you can answer this with this info
Step-by-step explanation:
(−1)^3⋅(−1)^2
simplify
Answer:
Step-by-step explanation:
(-1)³·(-1)² = (-1)·(1) = -1
Alternatively,
(-1)³·(-1)² = (-1)³⁺² = (-1)⁵ = -1
Pete has an old playstation that he bought for $400.
The playstation depreciates by 30% each year
Answer:
1 year= $280
Step-by-step explanation:
30% of 400= 0.3 * 400= 120
400-120= 280
after one year the playstation cost 280
30% of 280= 0.3 * 280= 84
280-84= 196
after 2 years it cost $196
multiply the number by 0.3 to get 30% of the total
how do i find the yield percentage?
Answer:
First make sure the both weights have the same units.
Take your experimental yield and divide it by the theoretical yield.
Multiply this value by 100 to find the percent yield.