[tex]-4i(2-i)=-8i+4i^2=\boxed{-4-8i}[/tex]
Answer:
-8i+4i
Step-by-step explanation:
distibutive property
-4i x 2 = -8i
-4i x -i = 4i
-8i+4i
Arrange the following in numerical order lowest first:
-0.05
-0.13
-2.7
1.9
1.91
21.2
21.025
Answer:
-2.7, - 0.13, - 0.05, 1.9, 1.91, 21.025, 21.2
Answer:
-0.05,-0.13 ,-2.7 ,1.9 ,1.91, 21.025, 21.2
hope it helps you
please mark me as brainlist
PLEEEASSEEEEE HELP ME...THIS HAS TO BE TURNED IN 10 MINUTES...WILL GIVE BRAINLIEST..there are two pics plllease help me..THAKYOU!!!
Answer: I cant see the picture
Step-by-step explanation:
Answer:
lol
no
ask
it teacher of it school
For 50 consecutive days, a process engineer has measured the weight of a component after it has been coated with special paint. Each day, she takes a sample of 10 components. The average across all 500 components is 45.343019 grams. The average range across all parts is 0.0076382 grams. When constructing an X-bar chart, what would be the centerline, and what would be the upper and lower control limits
Answer:
UCL (X-bar) = X mean+ (A2 x R-bar)
LCL (X-bar) = X mean -(A2 x R-bar)
Center line = Mean
A2 for sample size of 10 = 0.308
X mean = 45.343019
R bar = Average of range = 0.0076382
UCL (X-bar) =45.343019+(0.308*0.0076382) = 45.3453715656 grams
LCL (X-bar) = 45.343019-(0.308*0.0076382) = 45.3406664344 grams
Center line = Mean = 45.343019
45 = w − 54 What is the android
Answer:
w = 99
Step-by-step explanation:
45 = w - 54
99 = w
good luck, i hope this helps :)
Answer:
W=99
99 minus 54 equals 45.
2/5× = ?
I don't understand how to answer this
Answer:
10
Step-by-step explanation:
2x5 is basically 1x5= 5x2=10
BRAINLIEST! What is the slope of the line ?
Answer:
[tex]\displaystyle m=\frac{-4}{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Reading a Cartesian planeCoordinates (x, y)Slope Formula: [tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point (-3, 1)
Point (2, -3)
Step 2: Find slope m
Simply plug in the 2 coordinates into the slope formula to find slope m
Substitute in points [Slope Formula]: [tex]\displaystyle m=\frac{-3-1}{2+3}[/tex][Slope] Subtract/Add: [tex]\displaystyle m=\frac{-4}{5}[/tex]In the first year of a 10,000 investment the interest rate was 6%. All earned interest remained invested for the second year, and the interest rate increased to 7%. What was the percent increase of the entire investment after two years?
Answer:
13.4%
Step-by-step explanation:
First year:
$10,000*6% = $600
New balance = $10,600
Second Year:
$10,600*7% = $742
$10,600+ $742 = $11,342
Total Return:
Final Balance - Initial balance
$11,342 - $10,000 = $1,342
$10,000*x ÷ $1,342
x = $1,342/$10,000
x = 0.1342
0.134 = 13.4%
Cab A charges $20 at the start and $5 every mile after . Cab B charges $30 no matter how far you go. What are their initial values and their rates of change? When will their fares be equal?
Answer:
Car A: Initial Charge = 20
Car B: Initial Charge = 30
Car A: Rate = 5
Car B: Rate = 0
At 2 miles, their charges will be the same
Step-by-step explanation:
Given
Car A
[tex]Base\ Charge = \$20[/tex]
[tex]Rate = \$5[/tex] per mile
Car B
[tex]Base\ Charge = \$30[/tex]
Solving (a): The initial charge
First, we get the linear equation that represents both car's charges.
Represent number of miles with m.
So, the charges is:
Car A
[tex]A = Base\ Charge + Rate * m[/tex]
[tex]A = 20 + 5 * m[/tex]
[tex]A = 20 + 5m[/tex]
Set m to 0 to get the initial charge:
[tex]A = 20 + 5*0[/tex]
[tex]A=20[/tex]
and
[tex]Rate = 5[/tex]
Car B:
[tex]B = Base\ Charge + 0 * m[/tex] i.e. Rate is 0
[tex]B = 30+ 0 * m[/tex]
[tex]B = 30[/tex]
So:
[tex]Initial = 30[/tex] and [tex]Rate = 0[/tex]
Solving (b): When their charge wil be equal.
To do this, we set:
[tex]A = B[/tex]
[tex]20 + 5m = 30[/tex]
[tex]5m = 30- 20[/tex]
[tex]5m = 10[/tex]
[tex]m = 2[/tex]
At 2 miles, their charges will be equal
Find last year's salary if, after a 4% pay raise, this year's salary is $41,080.
Answer:
$39500
Step-by-step explanation:
104%-41080
1%-395
last year's salary=395*100=39500
A box with a square base and no top is to be made from a square piece of carboard by cutting 4 in. squares from each corner and folding up the sides. The box is to hold 4096 in3. How big a piece of cardboard is needed?
Your answer is:
in. by
in.
Answer:
oh wait I'm bad - ignore this first answer lol - I didn't read the part that says cutting 4 in. squares off the corners
Here's my previous one if you wanna see it though:
Answer:
A = 1280 in²
Step-by-step explanation:
We know that the volume of a cube is A = a³, where a is the length of one of the edges.
So, to find a:
a³ = 4096
a = ∛4096
a = 16 in
Now, we need to find the surface area of the square on the cube, where:
A = 6a², because we are making a box (that is empty inside).
However, we need to change the formula to:
A = 5a², because the problem says that there is no top (so there are only 5 squares)
A = 5(16)²
A = 1280 in²
{{6- '6) '(+ '9) '(l '.) '(6 '9-) (7-'9-)}
don't know
Mark as brainlist mate
because making my answer as brainlist you would not lose anything।।।।।।।।।।
And about your answer do it Yourself because in paper we won't be helping you for your problem।।।।।।।।।so do it Yourself your knowledge will be gain।।।।।।।।।।HELP
WRITE AS EQUATION IR EXPRESSION
500 decreased by sum of a number and 2 is 300
[tex]500 - (2 + n) = 300[/tex]
Hope this helps.
(b) Melissa bought 18 pounds of flour for $10.
How many dollars did she pay per pound of flour?
dollars per pound
Answer:
$1.80 per pound.
Step-by-step explanation:
You take 18/10 =1.80.
Hope that helps!
factorise 6n-10
how do you do it?
Answer:
Step-by-step explanation:
given
6n - 10
Take 2 as common then
2 ( 3n - 5 )
hope it helps :)
Answer:
2(3n-5)
Step-by-step explanation:
You need to find the highest common factor (2 in this case).
When the word factorise is mentioned that means there has to be brackets in your answer.
After the highest common factor is found then divide the numbers by it. for example, 6÷2 and -10÷2.
Hope that helps!!
Whodunnit worksheet, It’s math there are 10 clues and you have to find the last know whereabout, the method and the players, this is just the first sheet
For the given triangle the statement that is true for length x is -
x < 9
What are triangles?
Triangles are a particular sort of polygon in geometry that have three sides and three vertices. Three straight sides make up the two-dimensional figure shown here. An example of a 3-sided polygon is a triangle. The total of a triangle's three angles equals 180 degrees. One plane completely encloses the triangle.
The length of 1 side is = 5 units
The length of second side is = 4 units
A key geometrical concept that connects the lengths of a triangle's sides is the triangle inequality theorem.
It stipulates that the length of the remaining side must be greater than the sum of the lengths of any two sides of a triangle.
The triangle inequality theorem can be written out as follows if a, b, and c are the lengths of a triangle's sides:
b + c > a
a + c > b
b + a > c
Since the sum for the given triangle is 5 + 4 = 9
So, the third side must be less than 9.
Therefore, the inequality is x < 9.
To learn more about triangles from the given link
https://brainly.com/question/25215131
#SPJ1
Select all the situations that describe a probability of 1/6 of drawing a red marble out the bag.
(A) 1 red, 6 yellow, 6 green, 6 blue, 6 white
(B) 3 red, 4 yellow, 4 green, 4 blue, 3 white
(C) 4 red, 5 yellow, 5 green, 4 blue, 6 white
(D) 6 red, 6 yellow, 6 green, 6 blue, 6 white
6 red, 4 yellow, 8 green, 6 blue, 12 white
please helppp with my geometry
Answer:
a (-3,6)
b (6,9)
c (9,3)
Step-by-step explanation:
there are 33 students for 3 classes how many are there per class
someone please help me solve this. i'll give brainliest!
Answer:
1) 7x+5y
2) -19m +14r
3) 2 •(11b+20c)
4) 5•(2x-5)
5) 7•(m+1)
Step-by-step explanation:
You're welcome
Need help on this please any one
Find angle picture below!
Answer:
Angle T = 62°; Angle U = 43°; Angle V = 75°
Step-by-step explanation:
First, find x. We know that the interior angles of a triangle will always add up to 180°.
180° = (5x +2)° + (6x + 3)° + (2x + 19)° –––Combine like terms
180° = 13x + 24 –––Subtract 24 from both sides
156° = 13x ––– Divide both sides by 13 to get x alone
12° = x
Now that we know what x is, we can substitute it in the expressions for the angles.
Angle T:
5x +2
5(12) + 2
60 +2
62°
Angle U:
2x + 19
2(12) + 19
24 + 19
43°
Angle V:
6x + 3
6(12) + 3
72 + 3
75°
Check:
They must equal 180° when added together:
75° + 62° + 43° = 180°
75° + 105° = 180°
180° = 180°
Len has 3 strips of construction paper. Each strip is the same size and a different color-red, yellow, and pink. He tapes the strips together to make a rectangle. Then Len divides the rectangle into sixths so that each sixth is one color. What fraction other than 1/3 names the part of the rectangle that is red?
Answer:
2/6
Step-by-step explanation:
Each of the rectangle strips are taped together to form a rectangle. Therefore 1 of the third of the rectangle would be red, this means that 1/3 of the rectangle would be red color. The rectangle is then divide into sixths, this can be achieved by dividing each of the taped strip into 2.
Therefore 2 of the sixths rectangle would be red in color, Hence the fraction of the rectangle that would be red is given as 2/6
Mira's six test scores are given. What is the
positive difference between the mean of the
scores and the median of the scores?
86, 72, 92, 62, 99, 93
Answer:
First, we need to find the mean and median of the scores.
Mean:
86+72+92+62+99+93=504
There are 6 test scores, so:
504 ÷ 6 = 84
Median:
62, 72, 86, 92, 93, 99
86 + 92 = 172
172 ÷ 2 = 86
The answer would be:
Mean: 84
Median: 86
tres carpinteros juan alberto y luis se encargaron de hacer 6 mesas iguales por lo que recibieron $600 pesos juan hizo una mesa alberro hizo 2 mesas y luis 3 mesas cuanto dinero corresponde a cada uno
Answer:
primero divides 600 entre 6 te da 100
entonces cada mesa vale 100 pesos así que
100x1:100 así que a juan le tocan 100 pesos
100x2:200 así que Alberto le tocan 200 pesos
100x3:300 así que a Luis le tocan 300 pesos
Me das coronita plisWhich of the following expressions is equivalent to: 4x-12 *
16x
O
-8x
4(x-3)
O
4 + X-12
O
4(x-12)
Answer:
4(x - 3)
Step-by-step explanation:
4x = 4 * x
12 = 4 * 3
GCF = 4
4x - 12 = 4*x - 4*3
= 4(x - 3)
the second one.
............................
PLEASE HELP 11 POINTS!!
find the composition of transformations that map ∆PQR to ∆P'Q'R. Rotate 90 counterclockwise about the origin and then reflect over the ___?
Answer:
x-axis
Step-by-step explanation:
10-4+9/3=9 true or false
Answer:
False
Step-by-step explanation:
Because 10 - 4 = -6
Not 3
Answer:
true
Step-by-step explanation:
first you do the division
10-4+9/3
10-4+3
then you do addition or subtraction in left-to-right order
6+3
9
so it's true
200 centimeters to 5 meters write ratio in simplest form
Answer:
5.2
have a nice day
Find a 15
–7, 2, 11, 20, ...
2radical3+3radical2
Rationalize the denominator (simplify)
(3-√2
Step-by-step explanation:
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