Answer:
D
Step-by-step explanation:
x 0,4,8,12
f(x)‒1,7,15,23
we can prove as the following
f(x)=2x‒1
‒1=2(0)‒1
‒1=0‒1
‒1=‒1
f(x)=2x‒1
7=2(4)‒1
7=8‒1
7=7
f(x)=2x‒1
15=2(8)‒1
15=16‒1
15=15
f(x)=2x‒1
23=2(12)‒1
23=24‒1
23=23
i wish it helps you
Find the sum or difference of the polynomials (x2−xy+y2) − (x2+xy+y2)
Select equivalent or not equivalent for each pair of expressions
Answer:
1: equivalent
2: equivalent
3: not equivalent
Step-by-step explanation:
for 1 & 2, you just switch the terms, but for 3, the 6z is not negative in the first expression, but it is in the second.
Which statement is true? Use the number line to help. A number line going from negative 2.5 to positive 2.5 in increments of 0.5. –2 is greater than Negative 2 and one-half. 1.5 is less than 1 1 is less than Negative one-half. Negative 1 and one-half is greater than Negative one-half.
Answer:
-2 is greater than Negative and one-half
Step-by-step explanation:
The number is further from zero towards the negative portion o the number line making it of lesser value.
60% of a firm's employees are men. Suppose four of the firm's employees are selected. a. What is the random variable we can consider here? b. What is probability of finding three men and one woman? c. What is the answer for part if 75% of employees were men?
Answer:
60% of the employees are men.
Then the 40% left must be women.
4 of them are selected.
a) What is the random variable we can consider here?
A random variable is a variable that can have different outcomes or values, in other words, it is a stochastic variable.
We have a selection of 4 employees at random, then we can define the variable X, that represents (for each employee) the possibility of being man or woman.
b) Probability of 3 men and 1 woman.
Suppose that the selection is in the order:
man-man-man-woman.
We have:
0.6 tree times.
0.4 one time.
P = 0.6^3*0.4
But this is for the case where the woman is in the last selection, it can be in the first, second and third, then we have 4 permutations, the actual probability is:
P = 4*( 0.6^3*0.4) = 0.3456.
c) If now we have tat 75% are men, then 25% are women.
Now we can do the same as before, but now the probability for a man is 0.75 and for a woman is 0.25, then the previous equation is now:
P = 4*(0.75^3*0.25) = 0.421875
(a) The random variable will be "Men percentage".
(b) The probability of finding 3 men and one woman be "0.3456".
(c) The probability be "0.4219".
Probability(a) A random variable represents a variable which might have several occurrences as well as quantities; it is indeed a stochastic quantity.
If we choose four workers at random, users may create the variable X, which reflects the potential of someone being a male or even a woman.
(b) The probability be:
→ P(3 men and women) = [tex]4C_3[/tex] (0.6)³ (1 - 0.6)¹
= 0.3456
(c) The probability be:
→ P(3 men and women) = [tex]4C_3[/tex] (0.75)³ (1 - 0.75)¹
= 0.4219
Thus the response above is correct.
Find out more information about probability here:
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Mrs.Reynolds is picking up 17 playground balls after recess and she wants to put the same number of balls into each ball bin . What are the different ways she could group the balls
help please! i don’t understand how to do this!
Answer:
x=c+b/a
Step-by-step explanation:
ax-b=c
+b +b
ax=c+b
__ ___
a=c+b/a
Answer:
D
Step-by-step explanation:
Given
ax - b = c ( add b to both sides )
ax = c + b ( isolate x by dividing both sides by a )
x = [tex]\frac{c+b}{a}[/tex] → D
show that the area of the rectangle ABCD is 3 route 5 cm
Answer:
Please see the attached picture for the full solution.
The table shows four swimmers who raced against each other at a swim meet.
Which list shows the swimmers in order by their completion times from slowest to fastest
Answer:
Since you didn't provide the answer choices, it should look like something like this:
(from slowest to fastest)
Addison
Michael
Bryce
Susan
Explanation:
When you convert all the fractions into decimals, you can see and compare times easier.
Susan > 25.09
Bryce > 25.50
Addison > 25.80
Michael > 25.33 (the 3's go on practically forever, thats why it is usally shortened.)
The distance, D, travelled by a particle is directly proportional to the square of the time, t, taken. When t = 40, D = 30. find a formula for D in terms of t. Calculate the value of D when t = 64
Answer:
The formula for D in terms of t is D=0.01875t²
The value of D is 76.8
Step-by-step explanation:
See above for an image
Hope I helped!
After calculating by definition of proportionality, the value of D is 76.8
What is Proportional?Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.
Given that;
The distance, D, travelled by a particle is directly proportional to the square of the time, t.
So, We can defined as;
⇒ D = k × t²
Where, 'k' is constant of proportion.
Here, When t = 40, D = 30,
⇒ D = k × t²
⇒ 30 = k × 40²
⇒ 30 = k × 1600
⇒ k = 30 / 1600
⇒ k = 3/160
So, When t = 64, the value of D is,
⇒ D = 3/160 × 64²
⇒ D = 76.8
Learn more about the proportion visit:
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4-x/2=6 solve for x.
jkjhjk
Which of the following is the closest approximation to V20 ?
A 2
B. 3
C. 4
D. 5
Answer:
B.3
Step-by-step explanation:
Why because like 3 my favorite number and i had this same problem and the answer was 3.
For the function, f(x) = −x2, find f(-3)
Need the answer pls and thank you
Answer:
y=1.75x
Step-by-step explanation:
4,362,784 rounded to the greatest place value is?
Answer: 4,000,000
Step-by-step explanation:
4 is the greatest in place values. 3 is lower than 5 so 4 stays the same.
Answer:
The answer is 4,000,000.
Step-by-step explanation:
The greatest place value is the digit closest to the left. 4,362,784 rounded to the closest million is 4,000,000.
-(1+7x)-6(-7-x)=36 what is x equal to
Answer:
x = 5
Step-by-step explanation:
Step 1: Write equation
-(1 + 7x) - 6(-7 - x) = 36
Step 2: Solve for x
Distribute: -1 - 7x + 42 + 6x = 36Combine like terms: -x + 41 = 36Subtract 41 on both sides: -x = -5Divide both sides: x = 5Step 3: Check
Plug in x to verify it's a solution.
-(1 + 7(5)) - 6(-7 - 5) = 36
-(1 + 35) - 6(-12) = 36
-(36) + 72 = 36
-36 + 72 = 36
36 = 36
Help please!! I’ll give brainlies
Answer:
90= 1st
59=2nd
48= 3rd
-56=4th
-80=5th
-84=6th
Step-by-step explanation:
Answer:
1 (6th) 90, 2(2nd) -80 3 (3rd) -56 4th(1st) -84 5 (5th) 59 6th (4th) 48
Step-by-step explanation:
my friend needs help someone answer asap
Answer:
acute and obtuse angles .
missing variable -3 x + 9 = -18
Answer:
x=9
Step-by-step explanation:
Plug it in. -3(9)+9=-18
Hope this helps. Plz give brainliest.
Answer:
1. Subtract 9 from both sides
-3x = -27
2. Divide by -3 on both sides
x = 9
FINAL ANSWER x = 9
2.
What is the volume of a cone with a radius of 3 feet and a height of 6 feet? Use 3.14 for pi. Round your answer to the nearest hundredth. (4 points)
Answer:
56.55
Step-by-step explanation:
What is the equation of this line?
Answer:
A
Step-by-step explanation:
Rise over run up one unit over 2 and the y int is at -3
One angle in a triangle has a measure that is three times as large as the smallest angle. The measure of the
third angle is 50 degrees more than that of the smallest angle. Find the measure of the LARGEST angle.
Step-by-step explanation:
no need.,..................
....
A small scoop hold 75% as much as a large scoop. If the small scoop holds
36 units, how much does the large scoop hold?
Please help! This is 38 points for a simple question :(
Answer:
Large scoop holds 48 units.
Step-by-step explanation:
Large: x
Small: .75x = 36
x = 48 units
k(n)=3n+2; Find k(0)
Answer:
2
Step-by-step explanation:
substitute 0 for n:
3(0)+2
=2
Answer:
2
Step-by-step explanation:
Find the missing angle in the triangle
Answer:
61.
...juodkybog itt g8txogit I.
Answer:
C- 61 degrees
Step-by-step explanation:
56+63+x= 180 (angle sum of triangle)
119+x=180
x=180-119
x= 61
Therefore ans= C
Write the equation of the line that is parallel to y=3x+1 that passes through (2,3)
Answer:
Y=3X+3
Step-by-step explanation:
Y=mx+b
m=3
when x=2 and y=3 b=3
Please help quickly
Answer:
m∠PQR = 133
Step-by-step explanation:
∠PQR and ∠RQS are supplementary angles, meaning they have a sum of 180°.
3x - 5 + x + 1 = 180
4x - 4 = 180
4x = 184
x = 46
Now we simply substitute 46 in for x:
3(46) - 5 = 133
What is the solution to this equation:
X+7=-8
Answer:
[tex]\boxed {x = -15}[/tex]
Step-by-step explanation:
Solve for the value of [tex]x[/tex]:
[tex]x + 7 = -8[/tex]
-Subtract both sides by [tex]7[/tex]:
[tex]x + 7 - 7 = -8 - 7[/tex]
[tex]\boxed {x = -15}[/tex]
So, the value of [tex]x[/tex] is [tex]-15[/tex].
Line m passes through points (2,-5) and (4,-3). Line n passes through points (-4,-8) and (-6,-6). Are lined m and n perpendicular? Explain?
A. Yes, the lines are perpendicular because the product of their slopes does not equal -1.
B. Yes, the lines are perpendicular because the product of their slips equals -1.
C. No the lines are not perpendicular because the product of there slopes equals -1.
D. No the lines are not perpendicular because the product of their slopes does not equal -1
A right triangle with angle measures of 45, 45, 90 degrees undergoes a reflection, rotation, and translation. Determine whether the angle measure of the image of the triangle are 45, 45 and 90 degrees after each transformation. Choose yes or no.
Answer:
Reflection - Yes
Rotation - Yes
Translation - Yes
Step-by-step explanation:
After all 3 different transformations, the angle measures of the triangle will stay the same, at 45, 45, and 90 degrees.
This is because these 3 transformations do not change the shape of the triangle. They only change the orientation and placement of the triangle.
So, the angle measures will still be 45, 45, and 90 degrees after each transformation.
Answer:
Yes, the correct answer to this question is Yes.
what is 2 1/2 divided 2 2/3?
Answer:
0.9375
Step-by-step explanation:
Answer:
0.9375
Step-by-step explanation: