The relation between multiplying and dividing two negative fractions is needed.
When multiplying and dividing two negative fractions the answer will be always positive.
Let [tex]-\dfrac{a}{b}[/tex] be one fraction
and [tex]-\dfrac{c}{d}[/tex] be another fraction
Let us multiply them
[tex]-\dfrac{a}{b}\times -\dfrac{c}{d}=+\dfrac{ac}{bd}[/tex]
Let us divide them
[tex]\dfrac{-\dfrac{a}{b}}{-\dfrac{c}{d}}[/tex]
This can also be written as
[tex]-\dfrac{a}{b}\times -\dfrac{d}{c}=+\dfrac{ad}{bc}[/tex]
Since, multiplication and division are the inverse of each other the negative signs cancel each other and the sign is positive.
Hence, when multiplying and dividing two negative fractions the answer will be always positive.
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Please help :) (4-3i)(-3+6i)-(2-i)
Answer:
4+34i
Hope this helps!!!!!!
2x - 5 = 9
Step 1: 2x - 5 = 9
+5 +5
_____________
2x = 14, - 5x and 5x will canceled out because it is equal to 0
Step 2: 2x = 14, Multiply both sides by 2
2x (2) = 12 (2)
x = 24
Step 3: Final Answer: x = 24
Answer:
pls report for spam
Step-by-step explanation:
Evaluate Z=2X+5 solve for z
Answer:
z=2x+5
Step-by-step explanation:
help please i really need help
Answer:
I think the next one 400
What is m m − 9 = −13
Answer:
m=-4
Step-by-step explanation:
hope that helps:)
Answer:
-4
Step-by-step explanation:
m= - 13 + 9
calculate
__________
solution
m=-4
If 500x =500 then x equals?
Answer:
x=1
Step-by-step explanation:
Roxy is multiplying 18 by 43.
Use the drop-down menu to complete the statement.
1
4
1
The product × will be
.
8
3
8
Answer:
774,
Step-by-step explanation:
figure B is not a correct rotation of figure A
Not an answer. There should be a question here? I didn’t see one
Renee used the values in the table to calculate simple interest.
Principal $750
Interest rate ?
Time 11 years
Interest $412.50
Which interest rate is missing from Renee’s table?
Question:
Which interest rate is missing from Renee’s table?
Answer:
Principal- $750
Interest Rate- $00.5
Time- 11 yrs. (Years)
Interest- $412.50
Explanation:
To calculate your interest rate, you need to know the interest formula I/Pt = r to get your rate. ...
I = Interest amount paid in a specific time period (month, year etc.)
P = Principle amount (the money before interest)
t = Time period involved.
r = Interest rate in decimal.
Therefore we get an answer of $00.5
Answer:
c
Step-by-step explanation:
A flat screen tv at Best Buy costs $699 . The sales tax in Virginia is 5.3%. How much tax will you pay on the TV?
Answer:
736.05
Step-by-step explanation:699.00 x 5.3%=37.047
699.00 + 37.05 = 736.05
Answer:
$37.05
Step-by-step explanation:
$699 × 5.3%
We must convert 5.3% into just a decimal (not a percentage)
To do so, move the decimal to the left two places.
This would be 0.053
699 × 0.053 = 37.047
Although the exact number is 37.047, money is only paid within two decimals places, so let's round up to the nearest hundredth place
37.047 rounds up to 37.05
$37.05 is how much tax will be paid on the TV
can someone answer these two for me?? thank you so much
Answer:
for first pic it's CD and for second pic that's option 1
Answer:
1=1
2=2
Step-by-step explanation:
hope this helps if they are wrong let me know i will fix it for you
What steps would you do to solve 3x-52 -12?
1. Add-12, then divide by 3
2. Divide by 3, then add 5
3. Multiply by 3, then subtract 5
4. Add 5, then divide by 3
Answer:
But you just gave us the steps-
Answer:
Step-by-step explanation:
Well for this you wouldn't necessarily solve you you simplify, to simplify you would do 56- 12 which would get you 3x - 44.
It takes 4 people 10 hours to plaster a section of a building. How long will it take 8 people to
do the same job working at the same rate?
Answer:
5 hours
Step-by-step explanation:
Answer:
5 hours because you have double the people which means it would take half the time :)
Hope this Helps! :)
Have any questions? Ask below in the comments and I will try my best to answer.
-SGO
Review the incomplete derivation of the cosine sum identity.
A 2-column table with 5 rows. Column 1 has entries step 1, step 2, step 3, step 4, step 5. Column 2 has entries cosine (x + y), sine (StartFraction pi Over 2 EndFraction minus (x + y) ), blank, sine (StartFraction pi Over 2 EndFraction minus x) cosine (negative y) + cosine (StartFraction pi Over 2 EndFraction minus x) sine (negative y), blank.
Which expressions for Step 3 and Step 5 complete the derivation?
Step 3: Sine ( (StartFraction pi over 2 EndFraction minus x) + y )
Step 5: cos(x)cos(y) + sin(x)sin(y)
Step 3: Sine ( (StartFraction pi over 2 EndFraction minus x) + y )
Step 5: cos(x)cos(y) – sin(x)sin(y)
Step 3: Sine ( (StartFraction pi over 2 EndFraction minus x) minus y )
Step 5: cos(x)cos(y) + sin(x)sin(y)
Step 3: Sine ( (StartFraction pi over 2 EndFraction minus x) minus y )
Step 5: cos(x)cos(y) – sin(x)sin(y)
Answer:
Option (4)
Step-by-step explanation:
STEP - 1
cos(x + y)
STEP - 2
[tex]\text{sin}[\frac{\pi}{2}-(x+y)][/tex]
STEP - 3
[tex]\text{sin}[(\frac{\pi}{2}-x)-y][/tex]
STEP - 4
[tex]\text{sin}(\frac{\pi}{2}-x)\text{cos}(-y)+\text{cos}(\frac{\pi}{2}-x)\text{sin}(-y)[/tex]
STEP - 5
cos(x)cos(y) - sin(x)sin(y)
[Since, [tex]\text{sin}(\frac{\pi}{2}-x)=cos(x)[/tex] and [tex]\text{cos}(\frac{\pi}{2}-x)=\text{sin}(x)[/tex]]
[Since, cos(-x) = cos(x) and sin(-x) = -sin(x)]
Therefore, Option (4) will be the correct option.
Answer:
D
Step-by-step explanation:
Top Answer was right, don't know why it was rated poorly
On a coordinate plane, a curved line with a minimum value of (5.1, negative 7) and a maximum value of (0, 25), crosses the x-axis at (negative 3.4, 0), (3.9, 0), and (6, 0), and crosses the y-axis at (0, 25).
Which statement is true about the local minimum of the graphed function?
Over the interval [–4, –2], the local minimum is 0.
Over the interval [–2, –1], the local minimum is 25.
Over the interval [–1, 4], the local minimum is 0.
Over the interval [4, 7], the local minimum is -7.
Answer:
D
Step-by-step explanation:
The rest of the question is the attached figure and the statement options.
A. Over the interval [–4, –2], the local minimum is 0.
B. Over the interval [–2, –1], the local minimum is 25.
C. Over the interval [–1, 4], the local minimum is 0.
D. Over the interval [4, 7], the local minimum is -7.
============================================================
According to the graph, we will check the options:
A. Over the interval [–4, –2], the local minimum is 0. (Wrong)
Because the minimum is -12
B. Over the interval [–2, –1], the local minimum is 25. (Wrong)
Because the minimum is 18
C. Over the interval [–1, 4], the local minimum is 0. (Wrong)
Because the minimum is at x = 4 less than zero
D. Over the interval [4, 7], the local minimum is -7. (True)
Answer:
The answer would be D
Step-by-step explanation:
Which equation is written in slope-intercept form?
O y = 3x-2
OX=
x-3y+8
O 2x+ 5y = 12
O 3y = 8x-5
Help
Answer:
[tex]y = 3x-2[/tex]
Step-by-step explanation:
[tex]general \: form of \: slope\: intercept \: is : \\ y = m(x) + c[/tex]
>
Of the points shown below, which point
represents the number with the greatest
absolute value?
A B C D
+
-4 -3 -2 -1 0 1 2 3 4
Answer:
A
Step-by-step explanation:
As it is technically the highest number as the greatest absolute value is never negative.
Which is the smallest?
A) 1.2 x 10^-8
B) 1.2 x 10^-9
C) 2.1 x 10^-9
D) 5.6 x 10^-6
E) 1.2 x 10^-3
Answer:
I think the answer is B my friend
Help please with #9 & 10!!!
Answer:
9) x=3
10)x=8.5
Step-by-step explanation:
Because M is a midpoint, for both questions, the equations on M's either sides are equal.
9) 5x+9=24
Subtract 9 from both sides
5x=15
Divide by 5 on both sides
x=3
10) 3x-7=x+10
Add 7 to both sides and subtract x from both sides
2x=17
Divide by 2
x=8.5
Question 3
dilation of 2
K(-1,0), (1, 2), uſo,-2)
Which of the following sets of ordered pairs correctly identify
K', C' and U'?
OK(-1/2.0), C (1/2, 1). U (0.-1)
K(-2.0): C 12.4). U (2-4)
OK[-2.0): C 12,2). U (0,-4)
OK[-2.0): C (2.4). U (0-4
Answer:
The correct answer is K(-2,0) C(2,4) U ( 0,-4)
Step-by-step explanation:
Andre ran 2 kilometers in 15 minutes, and Jada ran 3 kilometers in 20 minutes. Both ran at a constant speed. Did they run at the same speed?
Answer:
speed of Jada = 6km per hour which is not equal to
speed of Andre = 8km per hour
They did not run at same speed
Step-by-step explanation:
formula of speed = distance covered/ time taken
For Andre
Distance = 2 KM
time = 15 mins
60 mins = 1 hour
15 mins = 1/60 * 15 hour = 0.25 hours
thus,
speed = 2km/0.25 hour = 8 km per hour
Similarly for Jada
Distance = 3 KM
time = 20 mins
60 mins = 1 hour
20 mins = 1/60 * 20 hour = 1/3 hours
thus,
speed = 2km/(1/3)hour = 6 km per hour
Now we have
speed of Jada = 6km per hour which is not equal to
speed of Andre = 8km per hour
If g(n) = n +2, find g(1)
Answer:
3
Step-by-step explanation:
because n=1 and you plug it in you get 3
The variance of a distribution is 195. What is the standard deviation, rounded to the nearest thousandth? fill in the blank 1
Answer:√29.5= 5.43139
Step-by-step explanation:
help, please. will give brainliest.
Answer:
x =11
Step-by-step explanation:
XWY + YXZ = XWZ
5x+5 + 2x+8 = 90
Combine like terms
7x+ 13 = 90
Subtract 13 from each side
7x= 90-13
7x = 77
Divide by 7
7x/7 = 77/7
x = 11
A surveyor is surveying a street. The surveyor is standing at point B looking down the street at a No Parking sign at point C and a Stop sign at point A. Given BC = 4x-5 meters, BA = 20 meters, CA = 6 meters, and point C is between B and A, what is x in meters?
Answer:
i think x is bc=4x-5 meters
Step-by-step explanation:
The average depth of Lake Michigan is 85 meters below the surface. The deepest point in Lake Michigan is 196 meters lower than this.
Answer:
If you need to find how deep Lake Michigan is, it is 280 meters below the surface
Step-by-step explanation:
NEED HELP ASAP
The figure is reflected across line m and then reflected across line n. What is the resulting transformation?
reflection
glide reflection
rotation
translation
Answer:
A.)
Step-by-step explanation:
Answer:
i think translation
Step-by-step explanation:
or matbe reflection
Jenny works in a picture framing shop. She has a function f(x) equals X +2 that find the size of a square frame, given a picture of side length X in inches. She has a function p(x) equals 3X that gives the price in dollars for the frame. What is the single function that Jenny can use to give a customer a price for a picture with an edge length of X
Given:
The function for size of a square frame is
[tex]f(x)=x+2[/tex]
where, x is the side length of the picture.
The function for the price in dollars for the frame is
[tex]p(x)=3x[/tex]
To find:
The single function for the price of a picture with an edge length of x.
Solution:
We know that, for a picture with an edge length of x.
Size of a square frame = f(x)
Price in dollars for the frame = p(x)
Single function for the price of a picture with an edge length of x is
[tex](p\circ f)(x)=p(f(x))[/tex]
[tex](p\circ f)(x)=p(x+2)[/tex] [tex][\because f(x)=x+2][/tex]
[tex](p\circ f)(x)=3(x+2)[/tex] [tex][\because p(x)=3x][/tex]
Let the name of this function is c(x). So,
[tex]c(x)=3(x+2)[/tex]
Therefore, the required function is [tex]c(x)=3(x+2)[/tex].
Which list contains only rational numbers?
Answer: B
Step-by-step explanation:
Fractions, decimals, whole numbers, zero, and negatives. DOES NOT INCLUDE REPEATING DECIMALS.
solve for c a(b-c)=d
Answer; c= -d/a + b
Step-by-step explanation: