Answer:
21.920
Step-by-step explanation:
The χ2 value corresponding to a right-hand tail area of 0.025 with 11 degrees of freedom is approximately 21.92.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
A Chi-square distribution is a probability distribution that is used in statistical analysis.
It is typically used to determine whether there is a significant difference between two sets of data.
The degrees of freedom for a Chi-square distribution is the number of independent variables in the data.
The χ2 value is used to determine the likelihood of obtaining a particular result from a Chi-square test.
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I’m in 10th grade taking math for college readiness way behind on edge I’m paying 100 bucks on Apple Pay, PayPal ,or cash app to whoever can catch me up this week my email is kanemagdalene at g mail .com someone help please
Even if you catch me up to a c I’ll pay 50
Answer:
Just post your question here
Step-by-step explanation:
please help i will mark brainliest
Answer:
Step-by-step explanation:
1. x=45 y=90
2. x=40 y=40
3. x=12 because each angle would be 60, then you would divide that by 5 to get 12.
4. x= 40
5. 6x-9=2x+7
4x=16
x=4 - answer
6. 2x=3x-7
-x=-7
x=7 -answer
Pls answer!!!! Iwidjenwjidufn
Tyler painted 9/2 square yards of wall area with 3 gallons of paint. How many gallons of paint does it take to paint each square yard of wall? (Write a multiplication and division equation then draw a tape diagram to help you solve) PLEASE GUYS IM DESPERATE
Answer:
it takes 2/3 gallons to paint each square yard of wall.
You know that Tyler painted 9/2 square yards area with 3 gallons of paint and want to know many gallons of paint does it take to paint each square yard of wall.
Then 9/2 square yards - 3 gallons
1 square yards - x gallons,
mathematically this is proportion: (in the picture)
The gallons of paint required for one square yard, and its tape diagram is required.
The volume of paint required to paint 1 square yard of the wall is [tex]\dfrac{2}{3}\ \text{gallons of paint}[/tex]
The required tape diagram is attached.
[tex]\dfrac{9}{2}\ \text{square yards}=4.5\ \text{square yards}=3\ \text{gallons of paint}[/tex]
[tex]1\ \text{square yard}=\dfrac{3}{4.5}=\dfrac{2}{3}\ \text{gallons of paint}[/tex]
So, the volume of paint required to paint 1 square yard of the wall is [tex]\dfrac{2}{3}\ \text{gallons of paint}[/tex]
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What does n = in 10=6+n/2
Answer:
n = 8
Step-by-step explanation:
10=6+n/2
Switch sides
6 + n/2 = 10
Subtract 6 from both sides
6 + n/2 -6 = 10-6
Simplify
n/2 = 4
Multiply both sides by 2
2n/2 = 4 times 2
n = 8
Hope this helps!
What is the sum of (x ^ 2 - 3x + 2) and (5x ^ 2 - 3x - 8)
Answer:
6x^2-6x-6
Step-by-step explanation:
(x^2-3x+2)+(5x^2-3x-8)
x^2+5x^2-3x+(-3x)+2+(-8)
6x^2-3x-3x+2-8
6x^2-6x+2-8
6x^2-6x-6
Through: (3,5), Slope=1/3
Answer:
Y = 1/3x + 4
Step-by-step explanation:
y = mx + b
m = slope and b = y-intercept
Hope this helps. Pls give brainliest.
Answer:
y=1/3x+4
Step-by-step explanation:
The slope-intercept from is y=mx+b. the given information provides with the m/slope, but we are missing the b/y-intercept. to find the value we can plug in the x and y values with the given coordinates and solve.
5=1/3(3)+b
5=1+b
4=b
now that we have a y-intercept we can write this in slope-intercept form,
y=1/3x+4
Mr. Johnson's math class has twice as many students as Mrs. Jones' math class.
Mr. Smith's math class has 4 more students than Mr. Johnson's math class.
The total number of students in all of the classes is 54 students.
How many students are in Mr. Smith's class?
Hint: Make the number of students in Mrs. Jones class x
Answer: 4x54=216
Step-by-step explanation:
Well you don’t need to count in mr smiths math class because all the classes has 54 so um I did 4x54 hoped this helped :)
Answer:
Mr Smith: 24
Mr Johnson: 20
Mrs Jones: 10
24+20+10=54
Step-by-step explanation:
So I took a random number, and that number was 24.
I took 24 and put at as my testing in Smith's class.
If Mr. Smith had 24 students then, (x-4=Mr Johnson's class) Mr Johnson has 20 students, and half of that would be the amount of students in Mrs Jones class, so that equals 10.
J = Jones
Jo = Johnson
S = Smith
Finally S+Jo+J=54
expressions equal to 12n - 8 :)
Answer:
4(3n-2)
2(6n-4)
Step-by-step explanation:
4(3n-2)= 12n-8
2(6n-4)= 12n-8
Carson invested $3,900 in an account paying an interest rate of 2.1% compounded
monthly. Assuming no deposits or withdrawals are made, how much money, to the
nearest ten dollars, would be in the account after 14 years?
Answer:
5230
Step-by-step explanation:
The amount of money in Carson's account after 14 years would be $5231.6
What is compound interest?"Compound interest is the interest which is calculated from the original principal plus accumulated interest."
The formula to calculate the compound interest:[tex]A=P(1+\frac{r}{n} )^{nt}[/tex]
where,
A : Final amount
P : Initial amount (principal)
R : interest rate in percentage
r : interest rate (R/100)
n: number of times the interest is compounded
t : the overall tenure
For given question,
P = $3900, R = 2.1%, n = 12 (as compounded monthly), t = 14
for R = 2.1%,
[tex]r=\frac{2.1}{100} \\r=0.021[/tex]
Now, we need to find the value of A.
Using the formula of compound interest,
⇒ [tex]A=3900 \times (1+\frac{0.021}{12} )^{12\times 14}[/tex]
⇒ [tex]A=3900\times (1+0.00175)^{168}[/tex]
⇒ [tex]A=3900\times(1.00175)^{168}[/tex]
⇒ [tex]A=3900\times 1.3414[/tex]
⇒ [tex]A=5231.61[/tex]
⇒ [tex]A\approx \$ 5231.6[/tex]
Hence, there would be $5231.6 in the account after 14 years.
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Hi Help please asap!!!!!!!
Answer:
5.213
Step-by-step explanation:
bruh just search up right triangle calculator
What is the value of x in the equation 3x-y=18, when y= 27?
Complete each expression showing all steps, and simplify the final answer to lowest terms (improper fractions do not need to be changed to mixed numbers as in grade 9, we work with improper fractions instead).
Answer:
a. [tex]-\frac{576}{365}[/tex]
b. [tex]\frac{23}{16}[/tex]
Step-by-step explanation:
The image below shows step-by-step using Order of Operations (PEMDAS) to solve both of them.
Hope this helps my friend! :)
What second degree polynomial function f(x) has a leading coefficient of 3 and roots 4 and 1
Answer: f(x) = 3x² - 15x + 12
Step-by-step explanation:
Given f(x) has roots x = a and x = b, then
(x - a) and (x - b) are the factors
f(x) is then the product of the factors
f(x) = a(x - a)(x - b) ← where a is a multiplier
Given roots are x = 4 and x = 1, then
(x - 4) and (x - 1) are the factors
With a = 3, then
f(x) = 3(x - 4)(x - 1) ← expand factors using FOIL
= 3(x² - 5x + 4) ← distribute
= 3x² - 15x + 12
Maria made blueberry muffins for a bake sale. Each muffin cost her about $0.25 to make. She spent $8.75 to make all of the muffins. Maria sold each muffin for $0.50 more than it cost her to make.
What is the total amount of money that Maria received from selling her muffins?
Answer: $17.50.
Step-by-step explanation;
If each muffin cost her $0.25 to make and she spent $8.75 making all muffins, then you can divide this amount to find out how many muffins she made (8.75/0.25), this is 35 muffins. If she sold each muffin for $0.50, multiply the number of muffins (35) by their price ($0.50), this is $17.50. Therefore, Maria received $17.50 from selling her muffins.
please answer these questions it's very urgent please
Answer:
29) 10
Step-by-step explanation:
the other I can't do...
Answer:
29) x = 10
30) 1.275 × 10⁻⁵
Step-by-step explanation:
29) 2x / 5 = 4 ⇒ 2x = 20 ⇒ x = 10
please help i beg you
#10... Please help *with explanation please*
Answer:
2x+12=8x-18
Vertical angles are equal to each other
x=5
so 10+12 = 40-18
the answer is c 22
Step-by-step explanation:
glen is looking into buying a piece of land. he estimates that the land measures 700 yd by 50 yd. the land is actually 720 yd by 120 yd. what is the percent error in the estimated area of the land?
Answer:
0.595
Step-by-step explanation:
The computation of the percent error is as follows
Actual area is
= (720-yd × 120-yd)
= 86,400 square yards.
Estimated area is
= (700-yd × 50-yd)
= 35,000 square yards
Now
Error = (86,400 - 35,000)
= 51,400 square yards
Percent error is
= 51,400 ÷ 86,400
= 0.595
What can you add to your graph to better see your rotation?
The volume of a sphere is decreasing at a constant rate of 116 cubic centimeters per second. At the instant when the volume of the sphere is 77 cubic centimeters, what is the rate of change of the radius? The volume of a sphere can be found with the equation V=\frac{4}{3}\pi r^3.V=
3
4
πr
3
. Round your answer to three decimal places.
Answer:
[tex]\frac{dr}{dt} = -1.325 \ cm/s[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Calculus
Derivatives
Basic Power Rule:
f(x) = cxⁿ f’(x) = c·nxⁿ⁻¹Taking Derivatives with respect to time
Step-by-step explanation:
Step 1: Define
Given:
[tex]V = \frac{4}{3} \pi r^3[/tex]
[tex]\frac{dV}{dt} = -116 \ cm^3/s[/tex]
[tex]V = 77 \ cm^3[/tex]
Step 2: Solve for r
Substitute: [tex]77 = \frac{4}{3} \pi r^3[/tex]Isolate r term: [tex]\frac{77}{\frac{4}{3} \pi} = r^3[/tex]Isolate r: [tex]\sqrt[3]{\frac{77}{\frac{4}{3} \pi}} = r[/tex]Evaluate: [tex]2.63917 = r[/tex]Rewrite: [tex]r = 2.63917 \ cm[/tex]Step 3: Differentiate
Differentiate the Volume Formula with respect to time t.
Define: [tex]V = \frac{4}{3} \pi r^3[/tex]Differentiate [Basic Power Rule]: [tex]\frac{dV}{dt} = \frac{4}{3} \pi \cdot 3 \cdot r^{3-1} \cdot \frac{dr}{dt}[/tex]Simplify: [tex]\frac{dV}{dt} = 4 \pi r^2 \cdot \frac{dr}{dt}[/tex]Step 4: Find radius rate
Substitute in variables: [tex]-116 \ cm^3/sec = 4 \pi (2.63917 \ cm)^2 \cdot \frac{dr}{dt}[/tex]Isolate dr/dt rate: [tex]\frac{-116 \ cm^3/s}{4 \pi (2.63917 \ cm)^2} = \frac{dr}{dt}[/tex]Evaluate: [tex]-1.3253 \ cm/s = \frac{dr}{dt}[/tex]Rewrite: [tex]\frac{dr}{dt} = -1.3253 \ cm/s[/tex]Round: [tex]\frac{dr}{dt} = -1.325 \ cm/s[/tex]Our radius is decreasing at a rate of -1.325 cm per second.
Sergei runs a bakery
Answer:
i dont know you dident add the equation
Step-by-step explanation:
On a cold winter moming in Colorado, the outdoor temperature was 5 degrees Fahrenheit at sunrise For the next sex hours the temperature rose steadily by 3 degrees Fahrenheit every hour
T(h)=
Answer: 6
Step-by-step explanation:
because i said so
A ratio comparing two equivalent measurements is called a
A ratio comparing two equivalent measurements is called a proportion.
In which number line does the pointer show a number between -2 and -3?
A
B
C
D
Answer:
C
Step-by-step explanation:
Answer:
the answer is c
Step-by-step explanation:
How are the two functions f(x) = 0.7(6)x and g(x) = 0.7(6)–x related to each other?
g(x) is the reflection of f(x) over the x-axis.
g(x) is the reflection of f(x) over the y-axis.
g(x) is the reflection of f(x) over both axes.
g(x) and f(x) will appear to be the same function.
Answer:
It's B
Step-by-step explanation:
edge2021
We will see that g(x) is a reflection over the y-axis of f(x).
How does a reflection work?For a given function f(x), we can define:
A reflection over the x-axis as: g(x) = -f(x)A reflection over the y-axis as: g(x) = f(-x).In this case we have:
f(x) = 0.7*(6)^x
g(x) = 0.7*(6)^-x = f(-x)
So is ratter easy to notice that g(x) is a reflection over the y-axis of f(x), so the correct option is:
"g(x) is the reflection of f(x) over the y-axis."
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which is a function???
Answer:
The answer is ✰ C ✰
Step-by-step explanation:
:))
Answer:
A binary relation between two sets.
Input = x
Output = y
Step-by-step explanation:
In triangle ACE, P is the centroid, PF = 6 , and AD = 15 15. Find the measures of PC and AP. Enter your answers as numbers.
Answer:
PC = 12 units
AP = 10 units
Step-by-step explanation:
The centroid of a triangle is the intersection of the three medians of the triangle Each median connecting a vertex with the midpoint of the opposite sideThe centroid divides each median into two parts, which are always in the ratio 2: 1 from the vertexIn ΔACE
∵ P is the centroid of it
∴ P divides CF the ratio 2: 1 from C
∴ PC = 2 PF
∵ PF = 6 units
∴ PC = 2(6)
∴ PC = 12 units
∵ P divides AD at the ratio 2: 1 from A
→ That means AD = 2 + 1 = 3 parts, and AP = [tex]\frac{2}{3}[/tex] AD
∴ AP = [tex]\frac{2}{3}[/tex] AD
∵ AD = 15 units
∴ AP = AP = [tex]\frac{2}{3}[/tex] (15)
∴ AP = 10 units
Q: Three planes are flying parallel to one another. The distance between plane 1 and plane 2 is half the distance between plane 2 and plane 3. Plane 2 is flying along the path given by the equation 3x-4y=17. When plane 1 is at the point (4,5), how far (in metres) is plane 2 from plane 3?
*Ik the answer is 10 metres but how do you get the answer?*
(1+5 2 )−16( 2 1 ) 3 =
Answer:
The answer is -955.
Step-by-step explanation:
1+52−(16)(21)(3)
53−(16)(21)(3)
53−(336)(3)
53−1008
−955
