Answer:
i2 = -1Step-by-step explanation:
5i ⋅i⋅(−2i)= −
10 ⋅ i2 ⋅ i= − 10 ⋅ (−1) ⋅ i = 10i
What is the oposite of 42
Step-by-step explanation:
i think its 24
sorry, if its wrong
42 is an integer, for me i can assume you asking about the additive opposite.
so, the answer is -42
Help please
The answer choices are
A) x=3/x
B)x=9/x
C)0=3/x+x
D)0=9/x+x
Answer:
A
Step-by-step explanation:
Write the following series in sigma notation. 4 + 13 + 22 +31 + 40 + 49 + 58
Answer:
\sigma_{k = 0}^6 (4+9k)
Step-by-step explanation:
notice that the sequence is
a(k)=4+9k
for k=0,1,...,6
Help plsssssssssssssssaa
Answer:
The second option or B
Step-by-step explanation:
The approximate total mass= number of atoms * weight of an atom.
The approximate total mass=3.06 10²³ atoms. (1.67 10⁻²⁴ grams/1 atom)=
=0.51102 g ≈ 0.51 g
Answer: the approximate total mass is 0.51 grams.
help
a 2/3
b 1/6
c 2/9
d 1/3
Explanation:
There are 6 names in either circle A only, circle B only, or both circles (overlapped region)
The probability of getting someone in one of those circles, or both, is 6/9 = 2/3.
The function f left parenthesis x right parenthesis represents the monthly earnings of a sales executive, which consists of a base salary and a commission earned on each sale, where x is the number of sales. What does the value of f left parenthesis 0 right parenthesis represent?
base salary
number of sales
monthly earnings
commission earned
Answer:
base salary
Step-by-step explanation:
plz answer correctly will give 30 points.
Answer:
20
Step-by-step explanation:
trust me.
Answer:
20
Step-by-step explanation:
The base square itself is 4 x 4 which is 16, then there are 4 halfs which makes 2 more and the other 2 in that 2 triangles so 20
which equation has a value greater than -6 and less than 15?
Answer:
I belive it would be D
Step-by-step explanation:
4 less than a number n is -15
N= ?
m+1=4m-32 solve for m.
Aden records the height of a stack of building blocks as he adds blocks to the top of the stack. The graph shows the height, in
inches, based on the number of building blocks in the stack.
Height of Building Blocks Stack
20
18
16
14
12
Total Height (inches)
10
8
6
4
2
5 10 12 16 10 20 X
Building Blocks
Which statement best interprets the unit rate of the situation?
OA. For every 2 blocks added to the stack, the height increases by } of an inch.
Each building block added to the stack increases the height by or an inch.
Oc. Each building block added to the stack increases the height by 2 inches.
ОВ.
Save
Next
26)
Jeff's school is selling raffle tickets for $1 each. Of all the money collected from the sale of raffle tickets, 80% will go
to a scholarship fund, and 20% will go to the winner of the raffle. Jeff boughts of the 750 raffle tickets sold. What is
the expected payoff for Jeff when playing the raffle, and what does it mean?
A)
-$4, which means that Jeff can expect to lose $4
B)
- $1, which means that Jeff can expect to lose $1
C)
-$0.80, which means that Jeff can expect to lose $0.80
D)
-$4, which does not mean that Jeff can expect to lose $4 - only that he
could expect to lose $4 on average if the same scenario were repeated
many times
- $1, which does not mean that Jeff can expect to lose $1 - only that he
could expect to lose $1 on average if the same scenario were repeated
E)
many times
no
Answer:it’s D
Step-by-step explanation:
Yall i need this to be corret please explain giving brainliest please
Answer:
A) both expression involve addition
Please help me Asp with this
Answer:
13/24 more
Step-by-step explanation:
Dina = 5/6
Natasha = 11/8
Find the LCF
6| 6, 12, 18, 24
8| 8, 16, 24
Get each fraction to have a denominator of 24
5/6 = 20/24
11/8 = 33/24
Subtract 20/24 from 33/24
33/24 - 20/24 = 13/24
Which graph represents r = 2 + 2 cos(θ)?
Answer:Second Graph
Step-by-step explanation:
Did it on Edge
Answer:
second graph
Step-by-step explanation:
–5(–2) =
Please Show How You Did it :)5
Answer:
10
Step-by-step explanation:
well you are multiplying -5 and -2. When multiplying two negative numbers you get a positive. 5x2= 10.
Find the values of X
Answer:
x=8
Step-by-step explanation:
1. 91+12x-7=180 2. 68=7x+12
84+12x=180 56=7x
12x=96 8=x
x=8
Consecutive angles Alternate Interior Angles
Find the percent increase or decrease for each of the following values (Indicate whether each is an increase or a decrease).
1/2 q to 7/8 q
Answer: the decreases is 4% over 2% and the increase is thx for the points
Step-by-step explanation:
On a map, 2 cm represents 30 miles. Find the actual distance between two cities if they are 5 cm apart on the map.
1. 300 mi
2. 150 mi
3. 75 mi
4.65 mi
Answer: Multiply 5 x 30 and you get 150 miles
Step-by-step explanation:
The sum of two numbers is 68. The larger number is 22 larger than the smaller number. What are the two numbers
Answer:
x = 23 and y = 45
Step-by-step explanation:
x + y = 68
y = x + 22
substitute into your equation for x + y = 68
x + (x+22) = 68
combine like terms
2x + 22 = 68
2x = 46
x = 23
Now, use this to solve for y = x + 22
y = 23 + 22
y = 45
amy can run the 150 meter dash in 50 seconds. john can run 1200 meters in 400 seconds. who runs faster per second?
Answer:
Amy
Step-by-step explanation:
amy completed a longer distance in a shorter amount of time
rather than john completed a shorter distance in a longer time
Which describes the measure of a person's financial worth, determined by
adding everything that a person owns, and subtracting everything that the
person owes?
A. Owner's equity
B. Net worth
C. Liability capital
Answer:
Net Worth
Step-by-step explanation:
3. Which of these numbers is classified as both real and rational? (1 point
O/17
O9
2
O
Type here to search
Í
Answer:
2 and 09 but if it's just one option, pick 2
Step-by-step explanation:
the others aren't rational i think
The graph shown can be used to solve which of these systems of equations?
A)
y = -7x and y = x - 78
B)
y = -7x and y = x2 - 78
C)
y = 7x and y = x - 78
D)
y = 7x and y = x2 - 78
Answer: It is B
Step-by-step explanation:
Just took the test
10x-5 9x+2 is my equation and I don’t know how to solve it I really need help,someone please help me solve it.
9514 1404 393
Answer:
x = 7
Step-by-step explanation:
You solve a linear equation by putting the variable on one side of the equal sign and a constant on the other side. Here, variables and constants are on both sides of the equal sign, so you need to separate them.
The basic idea is that you add the opposite of any term you don't want. Whenever you perform any operation (like "add"), you must do it to both sides of the equation.
We observe that x-terms have coefficients of 10 and 9. We choose to add the opposite of 9x to both sides:
10 -9x -5 = 9x -9x +2
x -5 = 2 . . . . simplify
Now, we still have -5 on the left, where we don't want it. So, we add its opposite (+5) to both sides:
x -5 +5 = 2 +5
x = 7 . . . . simplify
The solution is x = 7.
_____
Additional comment
If we were to end up with an x-coefficient other than 1, we would divide both sides of the equation by that coefficient. This will leave the x-term with a coefficient of 1.
whats 9999999999+××888899182764urydujdh7w73747
Answer:
.0589582125/*6.059852 cuhhhhh
Step-by-step explanation:
Let x be the particular solution
Answer:
[tex]f(x)=\sqrt{\frac{1}{4x^2-3}}[/tex] for [tex](-\infty, -\sqrt {\frac 3 4 })[/tex] and [tex](\infty, \sqrt {\frac 3 4 })[/tex] .
Step-by-step explanation:
The given differential equation is [tex]\frac{dy}{dx}=-4xy^3[/tex]
Rearranging it as
[tex]y^{-3}dy=-4xdx \\\\\frac{y^{-3+1}}{-3+1}=-4\frac{x^2}{2}+C \\\\\frac{y^{-2}}{2}=4\frac{x^2}{2}+C \\\\y^{-2}=4x^2+C\cdots(i)[/tex]
where C is constant.
The initial condition is f(-1)=-1, i.e for x=-1, y=-1.
So, by using the initial condition to get the value of constant:
[tex](-1)^{-2}=4(-1)^2+C \\\\1=4+C \\\\C=1-4=-3[/tex]
From equation (i), we have
[tex]y^{-2}=4x^2+(-3) \\\\y^2=\frac{1}{4x^2-3} \\\\y=\sqrt{\frac{1}{4x^2-3}} \\\\[/tex]
As y=f(x), so the required particular solution
[tex]f(x)=\sqrt{\frac{1}{4x^2-3}}[/tex]
Now, determining the domain of the function
As for a real value output, the term under square root must be positive.
So,
[tex]\frac{1}{4x^2-3} >0 \\\\\Rightarrow 4x^2-3 >0 \\\\\Rightarrow x^2 > \frac 3 4 \\\\\Rightarrow |x|>\sqrt {\frac 3 4 } \\\\\Rightarrow x> \sqrt {\frac 3 4 } \; and \; x< -\sqrt {\frac 3 4 }[/tex]
Therefore, the domain of the function is
[tex](-\infty, -\sqrt {\frac 3 4 }) \;and\; (\infty, \sqrt {\frac 3 4 })[/tex]
Hence, [tex]f(x)=\sqrt{\frac{1}{4x^2-3}}[/tex] for [tex](-\infty, -\sqrt {\frac 3 4 })[/tex] and [tex](\infty, \sqrt {\frac 3 4 })[/tex] .
-1/5 = cos1.2k . find k
Answer:
cos.1.1k
Step-by-step explanation:
here is a list of numbers
3 6 9 7 4 6 7 0 7
find the median mode range
The age in United States has a normal distribution with a mean 46 years and standard deviation 13 years. The children are classified as those younger than 18 years and the middle age citizens are those in the age group 18-55. If a citizen is randomly chosen, what is the probability that he/she is middle age
Answer:
0.74
Step-by-step explanation:
The middle age citizens are those in the age group of 18-55.
We solve this question using z score formula
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
Mean 46 years
Standard deviation 13 years
For x = 18 years
z = 18 - 46/13
z = -2.15385
Probability value from Z-Table:
P(x = 18) = 0.015626
For x = 55 years
z = 55 - 46/13
= 0.69231
Probability value from Z-Table:
P(x = 55) = 0.75563
The probability that he/she is middle age is
P(x = 55) - P( x = 18)
= 0.75563 - 0.015626
= 0.740004
Approximately = 0.74
