Answer:
y=2x^2-4x+1
Step-by-step explanation:
i hope that’s right :)
What is 8% of 200?
4
16
25
Done
Answer:
16
Step-by-step explanation:
8% of 200 is 16
Answer: 16
Explanation: That's an i-Ready Diagnostic!! Heh...
What is the answer for -6d < 24
9514 1404 393
Answer:
d > -4
Step-by-step explanation:
Divide both sides of the inequality by -6. That requires the sense of the comparison to be reversed.
(-6d)/(-6) > (24)/(-6)
d > -4
Brenden spent 24 minutes playing a computer game. He stopped playing at 3:55 P.M. and went outside to ride his bike. What time did he start playing the computer game?
Answer:
3:31
Step-by-step explanation:
3 hours 55 minutes - 24 minutes = 3 hours 31 minutes
Answer:
3:31 PM
Step-by-step explanation:
55 - 24 = 31
So,
3:31 is the answer :)
Help me wit this ASAP!!!!!!!!!!!!!!
Answer:
Hi, there your answer will be 176pi ft^2
Step-by-step explanation:
pi(8)(14)+pi(8)^2
112pi+64pi
176pift^2
Hope this helps if you still don't understand just ask me and I can help you
A newspaper article indicated that 43 percent of cars with black seats are white, 46 percent of cars with black seats are blue, 7 percent of cars with black seats are red, and 4 percent of cars with black seats are black. A test was conducted to investigate whether the color of cars with black seats was consistent with the newspaper article. A random sample of cars of these colors was selected, and the value of the chi-square test statistic was
Complete question :
A newspaper article indicated that 43 percent of cars with black seats are white, 46 percent of cars with black seats are blue, 7 percent of cars with black seats are red, and 4 percent of cars with black seats are black. A test was conducted to investigate whether the color of cars with black seats was consistent with the newspaper article. A random sample of cars of these colors was selected, and the value of the chi-square test statistic was x = 8.2. Which of the following represents the p-value for the test?
A) P(x2 ≥ 8.2) = 0.08
B) P(x2 ≥ 8.2) = 0.04
C) P(x2 ≤ 8.2) = 0.96
D) P (x2 = 8.2) = 0.00
E) The p-value cannot be calculated because the sample size is not given.
Answer:
P(χ² ≥ 8.2) = 0.04
Step-by-step explanation:
We need to obtain the degree of freedom ;
Number of levels, k - 1
k = (white, blue, red, black) = 4
df = k - 1= 4 - 1 = 3
The test statistic, χ² = 8.2
The Pvalue is the probability of a Chisquare statistic with 3 degree of freedom is equal to or more extreme than the statistic value, 8.2
Using the Pvalue for calculator from Chisquare statistic, at 3 degree of freedom
Pvalue(8.2, 3) = 0.042
Hence,
P(χ² ≥ 8.2) = 0.04
If B=3x^{2}-x+3 and A=x-6, find an expression that equals 2B+3A in standard form.
9514 1404 393
Answer:
6x^2 +x -12
Step-by-step explanation:
Substitute for A and B and collect terms.
2B +3A
= 2(3x^2 -x +3) +3(x -6) . . . . substitute for A and B
= 6x^2 -2x +6 +3x -18 . . . . . eliminate parentheses
= 6x^2 +x -12 . . . . . . . . . . . . collect terms
7/12 3/7 in simplest form
Answer:
Both fractions are in their simplest forms.
What are the roots of the quadratic equation below?
2x2 - 5x-1 = 0
Find the domain of the rational function.
C(x) = x+9/X^2 -16
Answer:
Domain = {x : x ≠ 4 , -4} or (-∞ , -4) ∪ (-4 , 4) ∪ (4 , ∞)
Step-by-step explanation:
TO FIND :-
Domain of [tex]C(x) = \frac{x + 9}{x^2 - 16}[/tex]SOLUTION :-
Domain of a function is a value for which the function is valid.
The function [tex]C(x) = \frac{x + 9}{x^2 - 16}[/tex] is valid until the denominator is 0.
So make sure that the denominator must not be 0.
[tex]=> x^2 - 16 > 0[/tex]
Find the values of x for which the denominator becomes 0. To find it , you'll have to solve the above inequality.
Add 16 to both the sides[tex]=>x^2 - 16 + 16 > 0 + 16[/tex]
[tex]=> x^2 > 16[/tex]
[tex]=> x > \sqrt{16}[/tex]
[tex]=> \boxed{x > 4} \: or \:\boxed{x > -4}[/tex]
We can say that 4 & -4 can't be domains because these values will make the function undefined.
Now try putting values of x such that -4 < x < 4. You'll observe that the function will be valid for all those values of x between -4 & 4.
CONCLUSION :-
The function will be valid for any value of 'x' except 4 & -4. So in :-
Interval notation , it can be written as → (-∞ , -4) ∪ (-4 , 4) ∪ (4 , ∞)
Set builder notation , it can be written as → {x : x ≠ 4 , -4}
The length of each base of a trapezoid is shrunk to one-third its original length and the height of the trapezoid is tripled. Lisa claims that the area of the new trapezoid is one-third the area of the original trapezoid. Which expression best uses the dimensions of the new trapezoid to compare its area to the area of the original trapezoid in order to determine if Lisa's claim is accurate? Hide All А) 1 1 (by+b)3h B В 1 (B + b 2) /h (by+b)3h © by + b h
Answer:
A is the answer brainliest?
Step-by-step explanation:
A circle has a diameter of 10 centimeters.
What is the best approximation of its area?
Use 3.14 to approximate for π.
15.7 cm²
31.4 cm²
78.5 cm²
314 cm²
Answer:
78.5 (please put brainliest)
Step-by-step explanation:
r = diameter / 2 = 5
area = π * r^2 = 25 * 3.14 = 78.5
Answer:
78.5 m^2
Step-by-step explanation:
Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.
True
O False
Answer:
Surface area of a solid figure can be found by multiplying the area of the base by the height of the figure.
it's false
Step-by-step explanation:
Answer:
False
Step-by-step explanation:
Plz help ASAP plz help
Answer:
no solution for the answer
Evaluate the limit 12n^3 - 2n^2 + 9 / 4n^3
Answer:
3
Step-by-step explanation:
Evaluate the limit n - > ∞ 12n^3 - 2n^2 + 9 / 4n^3
Divide the expression by the highest power of n to have
limit n - > ∞ 12n³/n³ - 2n²/n³ + 9/n³ / 4n³/n³
= limit n - > ∞12 - 2/n + 9/n³ / 4
Substitute the value of n
= 12 - 2/∞ + 9/∞³ / 4
Since a/∞ = 0
The expression becomes;
= 12 - 0+ 0/4
= 12/4
= 3
Hence the required limit is 3
I NEED THE ANSWER AS SOON AS POSSIBLE PLS
Solve the system of equations {4x + 6y = 24
pair for its solution.
2x + y = 8 which has exactly one (x,y)
i only need number 4
Answer:
(3,2)
You can solve this in many ways. You can solve by graphing it, addition/elimination, or by substitution
A recipe uses 1 ¼ cups of milk to make 10 servings. If the same amount of milk is used for each serving, how many servings can be made using 2 gallons of milk?
Answer:
128 is your answer
Step-by-step explanation:
1 gallon of milk will make 128 servings.
100% Correct hope this helps ツ
Answer:
25
Step-by-step explanation:
16 cups = 1 gallon
1 1/4 * 12 = 15 (12 cups)
15 * 2 = 30 (24 cups)
30 + 1 1/4 = 31 1/4 (25 cups)
Brainliest please UwU
Help plz:)))I’ll mark u Brainliest
Answer:
5.9
Step-by-step explanation:
sin 18° = [tex]\frac{x}{19}[/tex]
[tex]\frac{31}{100} = \frac{x}{19}[/tex]
100x = 589
x = 5.89
Can someone please help?
Answer:
it's the top right box
Step-by-step explanation:
start from the first box and count how many units was added
PLEASE PLEASE HELP
what is the slope of the line
A. 0
B. 1
C. -2
D. no slope
Answer:
a.0
Step-by-step explanation:
The slope of any horizontal line is 0
Answer:
A, 0
Step-by-step explanation:
The slope of a line is Change in Y / Change in X. This line is parallel to X-axis, meaning the Y will always be the same. This means that the change in y is 0, meaning the slope is 0 / Change in X, which is 0.
Find the volume of a cube with a side length of 2 in, to the nearest tenth of a cubic
inch (if necessary).
Answer:
8
Step-by-step explanation:
volume of cube = side lenght ^3
= 2^3
= 8cubic inch.
3 (a - 1) + 31 - 11a = 4 ( 2a + 3)
Answer:
-⅖
Step-by-step explanation:
We need to simplify the given equation and find out the value of a , as ,
=> 3(a-1)+31-11a = 4(2a+3)
=> 3a -3+31-11a = 8a + 12
=> -8a -28 = 8a + 12
=> 16a = -28-12
=> 16a = -40
=> a = -2/5
• Hence the value of a is -⅖ .3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )
____________________Solution :-Given Information :-Equation ➢ 3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )To Find :-The value of 'a'Calculation :-⇒ 3 ( a - 1 ) + 31 - 11a = 4 ( 2a + 3 )
Opening the brackets and multiplying the terms, We get,
⇒ 3a - 3 + 31 - 11a = 8a + 12
⇒ -8a + 28 = 8a + 12
⇒ 8a + 8a = - 28 - 12
⇒ 16a = 40
Transposing 16 to Right Hand Side, We get,
⇒ a = [tex] \sf \frac{40}{16} [/tex]
⇒ a = [tex] \sf \frac{-2}{5} [/tex]
____________________Final Answer :-The value of 'a' is [tex] \bf \frac{-2}{5} [/tex]____________________Volume answer rn djdjd
Answer:
133.7π cm^3 or approximately 418.77430072 cm^3.
Step-by-step explanation:
For the cylinder half, use the formula: π*r^2*h, or pi times radius squared times height.
Since the diameter is 8, which means the radius is 4, and the height is 6, the volume of the cylinder would be 96π or 301.59289474...
For the cone on top, use the formula 1/3 (π*r^2*h), or one third pi times radius squared times height. Don't forget to calcuate the part in parentheses before dividing it by three.
Because the overall height was 13, you can subtract the 6 from the cylinder to get the cone's height. It has a height of 7 and a radius of 4 just like the cylinder. The volume of the cone is 112π/3 or 37.3π.
Now add both volumes together to get 133.7π cm^3 or approximately 418.77430072 cm^3.
If g(x)= -(3/(4x)) , find g(g(x)) please show work.
Answer:
[tex] g(g(x)) = x [/tex]
Step-by-step explanation:
[tex] g(x) = -\dfrac{3}{4x} [/tex]
[tex] g(g(x)) = -\dfrac{3}{4g(x)} [/tex]
[tex] g(g(x)) = -\dfrac{3}{4(-\frac{3}{4x})} [/tex]
[tex] g(g(x)) = -\dfrac{3}{4} \div (-\frac{3}{4x}) [/tex]
[tex] g(g(x)) = -\dfrac{3}{4} \times (-\frac{4x}{3}) [/tex]
[tex] g(g(x)) = \dfrac{3 \times 4x}{4 \times 3} [/tex]
[tex] g(g(x)) = x [/tex]
Solve for y
y/3=5
confused
Answer: y = 15
Step-by-step explanation: 5*3 = 15 All you have to do is reverse the equation. 15/3 = 5.
Answer:
y = 15
Step-by-step explanation:
y/3 = 5
Multiply both sides by 3
y = 15
what is the measure of KL
Answer:
killiliters
Step-by-step explanation: r u asking wah kl stads for
Sara has 3 1/2 feet of ribbon.
She needs 2/3 foot to make one bow.
How many bows can she make?
Answer:
5 bows
Step-by-step explanation:
Total feets of ribbon = 3 1/2
Fraction required to make a bow = 2/3
Number of bows that can be made = (total ribbon / Fraction required to make a bow)
3 1/2 ÷ 2/3
7/2 ÷ 2/3
7/2 * 3/2
= 21 / 4
= 5.25
The set of life spans of an appliance is normally distributed with a mean y = 48 months and a standard deviation or
8 months. What is the z-score of an appliance that stopped working at 64 months?
Answer:
The set of life spans of an appliance is normally distributed with a mean µ= 48 months and a standard deviation σ= 8 months. ... Thanh finds that his grade on the test has a z-score of -2.5. ... are normally distributed, and the probability that the city gets more than 43.2 inches of rain in a year is given by P(z≥1.5)=0.0668.
Step-by-step explanation:
=============================================================
Explanation:
The raw score is x = 64, and we want to find its corresponding z score.
The mean and standard deviation are mu = 48 and sigma = 8 respectively.
The z score is...
z = (x-mu)/sigma
z = (64-48)/8
z = 16/8
z = 2
A z score of 2 means we're 2 standard deviations above the mean.
As the formula above implies, we find the difference from the raw score (x) to the mean (mu). Then we divide over sigma to find out how many sigma steps we have to take to go from mu to x.
A negative z score would indicate the raw score is below the mean.
find the product of the complex numbers.express your answer in trigonometric form
z1=7(cos15°+isin15°) z2=2(cos110°+isin110°)
The product of the complex number z₁ = 7(cos15° + isin15°) and z₂ = 2(cos110°+isin110°) is z₁z₂ = 14(cos(125) + isin(125)]
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Given the equation:
z₁ = 7(cos15° + isin15°) and z₂ = 2(cos110°+isin110°)
z₁z₂ = (7 * 2)[cos(15 + 110) + isin(15 + 110)]
z₁z₂ = 14(cos(125) + isin(125)]
The product of the complex number z₁ = 7(cos15° + isin15°) and z₂ = 2(cos110°+isin110°) is z₁z₂ = 14(cos(125) + isin(125)]
Find out more on equation at: https://brainly.com/question/2972832
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What is the absolute value of a number?
Answer:
It is the distance from the zero on a number line. Also, it is never negative.
Step-by-step explanation:
Does anybody know the answer please.
Answer:
The sign of each y-coordinate changed.
Step-by-step explanation:
This was a reflection over the x-axis.
If you look at point F, it is (-5, -1) the corresponding point F' is (-5,1). Notice the numerical values of x and y are the same, but the sign of y flipped from negative to positive. The other four points all follow the same pattern.