EASY PEASY i got u bro
f(-2) = -(-2) + 5(-2) - 12
= 2 -10 -12
= -20
F(-2) = -20
Just plug in -2 for x
Select all statements that are true for density curves.
The curve is on or above the horizontal axis.
The total area under the curve is 1
The curve is symmetric and single peaked
The proportion of data values between two numbers and is the area under the curve between a and b.
The curve satisfies the 68.95.99.7% rule.
Answer:
The curve is on or above the horizontal axis ⇒ 1st
The total area under the curve is 1 ⇒ 2nd
The proportion of data values between two numbers and is the area
under the curve between a and b ⇒ 4th
Step-by-step explanation:
* Lets explain the meaning of density curve
- Density curve is a mathematical model for a distribution of a variable
- It is another type of graph that represents a quantitative variables
- It describes the overall pattern of a distribution
- Its area is always on or above the horizontal axis
- Its area under the curve is exactly 1
- It can come in many shapes - symmetric, right-skewed, left-skewed
- The area under the curve and above any range of values on the
horizontal axis is the proportion of all observations that fall in
that range
- Ex: density curve describes the probability distribution of a
continuous random variable
The probability of any event is the area under the curve and above
the values that make up the event.
* Now lets chose the true statements
# The curve is on or above the horizontal axis
# The total area under the curve is 1
# The proportion of data values between two numbers and is the area
under the curve between a and b
While most of the provided characteristics apply to all density curves, namely their position on or above the horizontal axis, their unit area, and the proportion interpretation of the area, they are not necessarily single peaked or symmetric and do not always follow the 68-95-99.7% rule.
Explanation:The given statements about density curves are true:
The curve is on or above the horizontal axis: This indicates that the values of density (frequency per unit measure) are always non-negative. The total area under the curve is 1: This reflects the fact that the total probability of all potential outcomes (as represented by the area of the curve) is 1. The proportion of data values between two numbers a and b is the area under the curve between a and b: This is because the area under the density curve gives the probability, which interprets as the proportion in this context.
However, two of the provided statements have elements that do not apply universally:
The curve is symmetric and single peaked: This is not always the case. A density curve can be skewed or can have multiple peaks. The curve satisfies the 68-95-99.7% rule: This rule applies only to normal (bell-shaped) distributions, not all density curves.Learn more about Density Curves here:https://brainly.com/question/18345488
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which of the following is the solution to the equation 16 equals 4x - 4
There is 6/8 of a cake leftover after a birthday party how many 1/4 pieces can be made from the leftover cake
Answer:
3
Step-by-step explanation:
6/8 ÷ 1/4
=
6 × 4
8 × 1
=
24/8
=
24 ÷ 8
= 3
Answer:
I believe it is 2
Step-by-step explanation:
What Is 5/6 + (-1 1/6)?
The sum of 5/6 and -1 1/6, when understood as fractions, results in the simplified answer of -1/3.
Explanation:To calculate the sum of 5/6 and (-1 1/6), we must first understand the concept of fractions and negative numbers.
5/6 is simply a fraction. The number -1 1/6, however, is a negative mixed number, which consists of an integer (-1) and a fraction (1/6).
We convert this negative mixed number to a simple fraction to make the calculation easier. -1 1/6 becomes -6/6 - 1/6 which equals -7/6.
Now we add the two fractions: 5/6 and -7/6. These two fractions have the same denominator, so we simply add the numerators: 5 + (-7) = -2.
Therefore, 5/6 + (-1 1/6) is equal to -2/6, which simplifies to -1/3.
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Solve the following equation. Then place the correct number in the box provided.
3x=12
3x = 12
x = 12/3
x = 4
Answer explained step by step:We have to 3x = 12
What we will do is clear the variable or unknown "x"
- What is multiplying "3 × x" we will divide:
x = 12/3
- We simplify...
x = 4
What part of 3 1/2 is 1/2?
this is for RSM h.w so please help!
Answer:
The fraction.
Step-by-step explanation:
3 [tex]\frac{1}{2}[/tex] is a mixed number, so the 1 over 2 is the fraction of the whole number.
Answer:
1/2 is 1/7 of 3 1/2.
Step-by-step explanation:
That would be 1 / 3 1/2 / 1/2
= 1 / (7/2 / 1/2)
= 1 / (7/2 * 2)
= 1/7.
| x | - 8 = -5
It’s talking about absolute value, but I don’t know what to do .-.
Answer:
3
Step-by-step explanation:
3-8=-5
1x -1y =100 x. what is the answer
Answer:
y=-99x
Step-by-step explanation:
it's imposible to answer y in terms of a number, but it is possible to do it in terms of x.
x-y=100x
x=100x+y
-99x=y
y=-99x
how did you slove the problem and what's the answer
Answer: b) 2x² - 5x - 3
Step-by-step explanation:
Distribute each term in the first parenthesis into the second term and then add like terms.
(2x + 1)(x - 3)
= 2x(x - 3) + 1(x - 3)
= 2x² - 6x + x - 3
= 2x² - 5x - 3
Select the words that best describe the given
equation Y = x²-1
The x-value squared is 1 less than the y-value.
The x-value minus l is the square of the y-value.
e
The y-value is 1 less than the square of the x-value,
The y-value is 1 minus the square of the x-value.
Answer:
The y-value is 1 less than the square of the x-value,
Step-by-step explanation:
if we follow the letters and convert them into numbers we will get:
y-value=y
1 less than=-1
square of x value=x^2
so
we put the number in order according to the words:
y value=1 less than the square of x
so
y=x^2-1
hope this helps!
The y-value is 1 less than the square of the x-value. The correct option is D.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
The given expression is Y = x²-1, then follow the letters and convert them into numbers we will get:
y-value=y
1 less than=-1
square of x value=x^2
Put the number in order according to the words:
Y = x²-1 ↔ y value is 1 less than the square of x
Therefore, the y-value is 1 less than the square of the x-value. The correct option is D.
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3 is to 15 as 4 is to
Answer:
20
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
Which is the best estimate of the correlation coefficient for the scatter plot?
Answer:
The best estimate for this correlation would be B) 0.9.
We can see that the number is constantly going up, which would throw out the D answer.
We can also see that for every time the x goes up 1, the y goes up a little less than one. We can see that in the ordered pairs that exist on the graph such as (3, 2), (8, 6) and (2.1, 1.9).
Since the y values are just lower than the x, the correlation would be just under one. Therefore, 0.9 is an accurate estimation.
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Step-by-step explanation:
Answer:
0.9
Step-by-step explanation:
The best way to estimate the value of correlation coefficient from scatter plot is draw a straight line such that the distance between the straight line and scatter point is minimum.
If the direction of straight line is towards top right then value of correlation coefficient is positive otherwise if direction of straight line is towards bottom right then value of correlation coefficient is negative.
And, if straight line is nearly horizontal then value of correlation coefficient is nearly 0.5 or -0.5.
Thus, we have only two possible values of correlation coefficient which is 1 or 0.9
Also, here we see that as the value of x is increasing the value of y is also increasing but it is comparatively less than the increase of x.(See the scatter points (3, 2), (8, 6) and (2.1, 1.9)). If both rate of change is constant then value of correlation coefficient is 1.
Hence, value of correlation coefficient is 0.9
how many zeros in the property 50 * 6000
Answer: 5 zeros
Step-by-step explanation: just multiply
Answer: 5 zeros
Step-by-step explanation:
50 * 6000 = 300,000
to make a cup of potato soup
Answer:
you make potato soup and put it into a cup
Step-by-step explanation:
Answer:
How to make potato cup soup.
1. get potato
2.get cup
3.get water
4. add potato to water
5. mix
6. add salt.
7.mix all of the stuff
8. get the cup
9. add the potato soup to cup
10. eat.
Step-by-step explanation:
Lisa is making activity baskets to donate to charity. She has 12 coloring books, 28
markers, and 36 crayons. What is the greatest number of baskets she can make if each
type of toy is equally distributed among the baskets? How many of each supply will go
into the baskets?
Answer:
12 and 12
Step-by-step explanation:
PLEASE HELP AND SHOW WORK THANKYOU IN ADVANCE BY A MILLION:))))))
Answer:
C (12+1/2) hours
Step-by-step explanation:
The picture represents the number of hours she spend watching tv for 2 weeks.
One day she watched for 0 hours.
One day she watched for 1/4 hours.
One day she watched for 1/2 hours.
Three days she watched for 3/4 hours.
Three days she watched for 1 hours.
Four days she watched for (1+1/4) hours.
One day she watched for (1+1/2) hours.
-----------------------------------------------------------
So for those two weeks (those 14 days) she watched
0+1/4+1/2+3(3/4)+3(1)+4(1+1/4)+1(1+1/2)
1/4+1/2+9/4+3+[4+1]+[1+1/2]
(1/2+1/2)+(3+4+1+1)+(1/4+9/4)
(1)+(9)+(10/4)
(1+9)+(5/2)
(10)+(5/2)
(20/2)+(5/2)
25/2
(12+1/2)
Find the coordinates of the midpoint, S of RT given: R( - 9, - 11) and T( -9, -1).
Answer:
Step-by-step explanation:
the midpoint, S of RT is : ((-9)+(-9) /2 ; ((-11)+(-1))/2)
(-9 ; -6)
7 1/2 of what number is 12
To find what number 7 and 1/2 of is equal to 12, we can set up an equation and solve for the unknown number.
Explanation:To find out what number 7 and 1/2 of is equal to 12, we can set up an equation.
We can represent the unknown number as x.
So, the equation becomes: 7 and 1/2 * x = 12
Next, we need to convert the mixed number 7 and 1/2 to an improper fraction. 7 and 1/2 is equal to 15/2. So the equation now becomes: (15/2) * x = 12
To solve for x, we can multiply both sides of the equation by the reciprocal of 15/2, which is 2/15.
This cancels out the fractions on the left side of the equation, giving us: x = (12 * 2)/15
By multiplying 12 and 2, we get 24. And by dividing 24 by 15, we get the final answer: x = 24/15, which can be simplified to x = 8/5 or x = 1.6.
please help me 20 points
Answer:
I NEED THE UNDERSTANDING OF WHAT DG MEAN
Step-by-step explanation:
will get branliest!!!!!!!
Answer:
It has the same domain as the function [tex]f(x)=-\sqrt{-x}[/tex]
Step-by-step explanation:
we have
[tex]f(x)=\sqrt{-x}[/tex]
we know that
The radicand cannot be a negative number
so
[tex]-x\geq 0[/tex]
Solve for x
Multiply by -1 both sides
[tex]x\leq 0[/tex]
The domain of the given function is the interval ----> (-∞,0]
All real numbers less than or equal to 0
The range of the given function is the interval ----> [0,∞)
All real numbers greater than or equal to zero
Verify each statement
Part 1) It has the same domain as the function [tex]f(x)=-\sqrt{-x}[/tex]
The statement is true
The domain of the function [tex]f(x)=-\sqrt{-x}[/tex] is
the interval ---> (-∞,0]
Part 2) It has the same range as the function [tex]f(x)=-\sqrt{-x}[/tex]
The statement is false
The range of the function [tex]f(x)=-\sqrt{-x}[/tex] is
the interval ---> (-∞,0]
Part 3) It has the same domain as the function [tex]f(x)=-\sqrt{x}[/tex]
The statement is false
The domain of the function [tex]f(x)=-\sqrt{x}[/tex] is
the interval ---> [0,∞)
Part 4) It has the same range as the function [tex]f(x)=-\sqrt{x}[/tex]
The statement is false
The range of the function [tex]f(x)=-\sqrt{x}[/tex] is
the interval ---> (-∞,0]
3(2x - 2) - r + 3x = 2(7x + 1) – 5x - 9
Answer:
r=1
Step-by-step explanation:
3(2x−2)−r+3x=2(7x+1)−5x−9
Step 1: Add -9x to both sides.
−r+9x−6+−9x=9x−7+−9x
−r−6=−7
Step 2: Add 6 to both sides.
−r−6+6=−7+6
−r=−1
Step 3: Divide both sides by -1.
−r
−1
=
−1
−1
The question is asking to solve for 'r' in the given equation. After simplifying to 9x - 6 - r = 9x -7 and solving for 'r', we find r = 1.
Explanation:The given equation is 3(2x - 2) - r + 3x = 2(7x + 1) – 5x - 9. To solve for 'r', we first simplify both sides of the equation. Distributing on the left side, we obtain 6x - 6 - r + 3x. On the right side we have 14x + 2 - 5x - 9. After simplifying, we obtain 9x - 6 - r = 9x -7. Subtracting 9x from both sides, we have -6 - r = - 7. Finally, solving for 'r', we add 6 to both side to get r = 1
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irrotional
number I need a example
Irrational numbers are numbers that can not be written as a simple fraction. An example of one would be [tex]\pi[/tex]. Pi is about 3.14, but it goes on forever. You can not write pi as a simple fraction.
solve 3x^2=-12-6x by completing the square
Answer:
x = - 1 ± i [tex]\sqrt{3}[/tex]
Step-by-step explanation:
Given
3x² = - 12 - 6x ( add 6x to both sides )
3x² + 6x = - 12 ( divide through by 3 )
x² + 2x = - 4
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(1)x + 1 = - 4 + 1
(x + 1)² = - 3 ( take the square root of both sides )
x + 1 = ± [tex]\sqrt{-3}[/tex] = ± i [tex]\sqrt{3}[/tex] ( subtract 1 from both sides )
x = - 1 ± i [tex]\sqrt{3}[/tex]
write the equation of a line that is parallel to y = - 3/2 x -1 and that passes through the point (4,6)
Answer:
Step-by-step explanation:Given Equation of line has slope m=-3/2
So the line passing through (4,6) has the same slope because both are parallel
From slope intercept form we have
y-y1=m(x-x1)
y-6=-3/2(x-4)
y-6=-3/2x +3/2(4)
y=-3/2x+12
2y=-3x+24
What’s is .665 as a fraction
Answer:665/1000
Step-by-step explanation:
Writing from 0.665 (decimal) to a fraction, the answer will be 665/1000, but you can simplify this fraction into 133/200 simplified.
Hope this helped!
Nate
Given that DJ║KE, ∠DBF = 37°, and ∠angle ABC = 46°, find the measure of ∠GCE in degrees.
Check the picture below.
Final answer:
To find the measure of ∠GCE, apply the properties of parallel lines and angles in triangles, leading to a solution of 83°.
Explanation:
Given that DJ║KE, ∠DBF = 37°, and ∠ABC = 46°, we can determine the measure of ∠GCE as follows:
Since DJ║KE, we have alternate interior angles, meaning ∠GCE = ∠DBF = 37°.
Now, ∠ACB is the exterior angle to the triangle ∆FCE, and by the Exterior Angle Theorem, ∠GCE + ∠ACB = ∠FCE = 180°.
Substitute the known values to find ∠GCE: 37° + 46° = 83°. Therefore, ∠GCE is 83°.
find the number described.
The number 44.4 is what percent of 74?
Answer:
60%
Step-by-step explanation:
[tex]percentage = \frac{44.4}{74} \times 100\% = 60\%[/tex]
Answer:
60%
Step-by-step explanation:
In questions like these, we take 74 to be the whole. As such, we express the whole as 100%. Then, we take 44.4 as just a portion of the whole. We therefore ask ourselves, what portion of the whole is 44.4.
We take 44.4 as the numerator and the whole, 74, as the denominator. We then express 44.4 as a fraction of the denominator. That is,
44.4/74
To express this as a percent, we multiply the above results by 100.
Thus, (44.4/74) x 100
= 60%
(4,-2) and (-2,-2) write the equation.
the equation is Y=-2/3x+2/3
2. Find the equation of a line that is parallel to the line y=-- x - 3 and goes through the point (-4,3).
What’s the answer?
Use the point-slope formula.
y - y_1 = m(x - x_1)
y - 3 = 1(x + 4)
y = x + 4 + 3
y = x + 7
Done.
A= 4a-9b Solve for a
Answer:
a=(A+9b)/4
Step-by-step explanation:
A=4a-9b
4a=A+9b
a=(A+9b)/4