Answer:
-43K+17
Step-by-step explanation:
(–9k3 + 12k2 + 9) – (10k3 + 3k2 + 4k – 8)
-9.3=-27 10.3=30
12.2=24 3.2=6
=(-27k+24k+9) - (30k+6k+4k-8)
COLLECT LIKE TERMS
=(-3k+9) - (40K-8)
= -3k+9-40k+8
= -43k+17
Answer:
-19k³ + 9k² + 17
Step-by-step explanation:
Given expression;
(-9k³ + 12k² + 9) - (10k³ + 3k² + 4k - 8)
To simplify, expand the brackets.
In the second bracket, the negative sign multiplies through;
= (-9k³ + 12k² + 9) - 10k³ - 3k² - 4k + 8
= -9k³ + 12k² + 9 - 10k³ - 3k² - 4k + 8
= -9k³ - 10k³ + 12k² - 3k²+ 9+ 8
= -19k³ + 9k² + 17
x-y-8x-9y can you solve this with also explain
Answer:
- 7x - 10y
Step-by-step explanation:
You add the “like” terms.
x - y - 8x - 9y
x - 8x And - y - 9y
-7x - 10y
Answer:
-7x-10y
Step-by-step explanation:
1. Combine like terms
= x+−y+−8x+−9y
= (x+−8x)+(−y+−9y)
= −7x+−10y
If the system given has parallel lines, what is the answer?
We need to see the "given system".
Answer:
Since parallel lines never cross, then there can be no intersection; that is, for a system of equations that graphs as parallel lines, there can be no solution. This is called an "inconsistent" system of equations, and it has no solution.
Step-by-step explanation:
28 in 21 in., 20 in.
Is this a right triangle?
Answer:
No, it is not a right triangle.
Step-by-step explanation:
The simplest way to determine is testing out the numbers with Pythagorian theorem.
If it complies with the theorem, it is a right triangle.
let's assume c = 28, b = 21, and a = 20
the longest side is the hypotenuse so side c (28 in) will be the hypotenuse.
According to the Pythagorian theorem, the square of the length of hypotenuse must equal to the sum of squares of other two sides.
check:
c^2 = 28^2 = 784
a^2 + b^2 = 21^2 + 20^2 = 841
because c^2 is not equal to a^2 + b^2, the triangle is not a right triangle.
In Naomi's grade, there are 60 students. Currently, 30% of them are enrolled in health. How many students are enrolled in health?
Answer:
42
Step-by-step explanation:
60-30%=42
1. Hector surveyed 500 people and asked them
how far they drive to work and what the last
digit of their phone number is. He used the
results to make a scatter plot.
Please answer this problem:( ill mark you brainliest
Answer:
8.3
Step-by-step explanation:
3.9 + (9.1 - 4.7)
3.9 + 4.4
8.3
Hope this helps!
Answer: 8.3
Step-by-step explanation:
1/2 ÷ ______ = 2
Please help
Answer:
1/2 ÷ 0.25 = 2
Step-by-step explanation:
Answer:
4 i hope i helped
Step-by-step explanation:
Happy Hound Pet Store sells dog food in 25-pound bags for $15.80. Pampered Pet Store sells dog food in 18-pound bags for $11.59. Which store has the cheaper price per pound?
A) Pampered Pet Store, because it is 4.21 lower in price per bag
B) Happy Hound Pet Store, because you get a bigger bag
C) Pampered Pet Store, because it is a smaller bag for a lower price
D) Happy Hound Pet Store, because the price per pound is about $.01 per pound less than Pampered Pets
Answer: c
Step-by-step explanation:it is lower price and its only 7 pounds of so the smaller bag will last you a long time about a few months
can someone please help with this and show me in steps will give brainliest?
48/56 equivalent fractions divided
Answer:
6/7
Step-by-step explanation:
NEED HELP !
A number line is shown
what fractions are shown on the number line
Answer:
2/6
Step-by-step explanation:
Explain what the vertical intercept represents in this situation.
Answer:
In the equation y = mx + c the value of m is called the slope, (or gradient), of the line. It can be positive, negative or zero. The value of c is called the vertical intercept of the line. It is the value of y when x = 0. When drawing a line, c gives the position where the line cuts the vertical axis.
Step-by-step explanation:
hope that helps!!!!!!
PLZ HURRY I NEED HELP
Which pair of events are independent of each other?
A.
selecting an ace from a deck of cards, and then drawing another ace without replacing the first
B.
drawing a red paperclip from a bag of paperclips, and then drawing another red paperclip without replacing the first
C.
drawing a ball from a bag, and then drawing another ball without replacing the first
D.
getting an even number on the first and second roll of the die
PLZ EXPLAIN
Answer:
D
Step-by-step explanation:
Rolling a die and getting a certain number will not change the chances of you getting the same number a second time. A normal die will always have a 1/2 chance of rolling an even number. However, the other answer choices will make the likelihood of getting the same type of event again slimmer as you remove one of the objects from being chosen again. An example for the first option would be drawing an ace from a deck of 52 cards where you only have 4 aces, so the chance on the first draw would have been 4/52 or a 7.7% chance while the next draw will be a 3/51 or 5.9% chance.
Select 2 ratios that are equivalent to 4:18
Thanks so much for helping!!
Answer: what are the choices?
Step-by-step explanation:
2:9 18:4
because the answer is to short im gonna put a few letters ddjduirehfeihfehijfjrejkfe
A running back on the high school football team was tackled for a 10-yard loss. On the very next play, the running back gains 10 yards. How many yards does the running back have after these two plays? Please hellpppp
Answer:
He has 0 yards
Step-by-step explanation:
Initially he lost 10 yards
This means that he is 10 yards away from the starting point which we shall call origin
Afterwards, he gained 10 yards
what this mean is that he is back at the original point before the loss
Since he gained what he lost, then he is back at the origin and then we can say that no yards was lost or gain so we have him gaining 0 yards only
What is the approximate area of the circle shown below? (The radius is 21cm)
A. 1385 cm2
B. 66 cm2
C. 5540 cm2
D. 132 cm
Answer:
The answer is A. 1385 cm2
Step-by-step explanation:
Use the formula A = pi times radius squared
Answer:
A. 1385 cm²
Step-by-step explanation:
Area of a circle is πr²
We know what the radius is, so all we have to do is plug it in.
π(21)²
π(21)²= 1385.44
Since it's approximate, it would just be 1385 cm²
Qué porcentaje es 74 de 85
Answer:
87%
Step-by-step explanation:
Am i right??
if not pls helppp
Answer:
Your answer, many solutions is correct!
Step-by-step explanation:
The answer one solution is incorrect because there is more than one solution to this equation.
The answer no solution is incorrect because there is a solution to this equation so clearly, this one is incorrect.
The answer many solutions is correct because there are two solutions to this equation, [tex]y=-3,\:x=\frac{9}{2}[/tex].
hope this helps!!!
(Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.)
Answer:
yeah correct
Step-by-step explanation:
Divide.
Write your answer in simplest form.
6/5 divided by 5/8
6/5x8/5
6x8 5x5
48/5x5
48/25
Decimal (1.92)
Answer:
The simplest form would be 1 23/28.
Step-by-step explanation:
Khan academy : >
Find the slope of the line y= -5x -1
Answer:
-5
Step-by-step explanation:
y=mx+b is the slope intercept formula.
m is the slope.
Answer:
slope = - 5
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 5x - 1 ← is in slope- intercept form
with slope m = - 5
HELP ASAP!!!!!! I WILL GIVW BRAINLIST FOR WHOEVER HELPS MEEE
Answer:
1. x= -6
2. x= -4
3. x= -7
4. x= 33
Step-by-step explanation:
please help, Brainliest, thanks and five star
Answer:
I think the answer is the fourth one
Step-by-step explanation:
Does anyone know or can tell me where I can find the answer of the book of math Sommet secondary two?
This is not a very good thing to be doing, but I use Slader. On Slader, people answer the questions on textbooks. I guess it's kind of like Brainly, but the questions are already there. I used to use Slader for Big Ideas. Make sure to read the explanations so you get the topic though.
What is 51% of 200 in steps?
Answer:
51% of 200 =
102
Step-by-step explanation:
51 x 200 = 10200
100 1 = 100 10200/100 = 102
percentages is out of 100
Another way:
51/100 is .51 so just multiply it by 200!
.51 x 200 = 102
Hope this helps you out! :)
Answer:
102 StepsStep-by-step explanation:
How you get 51% of 200 is by multiplying 51 by 200 then dividing the value of 51 times 200 by 100.
51 ⋅ 200 = 10200 ÷ 100 = 102 Steps
So, 51% of 200 equals 102 Steps
Hope this helps! <3
what is the slope of the line in this graph?
answers:
a. 5/9
b. 5/7
c. 7:5
d. 9/7
Answer:
b: 5/7
Step-by-step explanation:
Answer:
5/9
Step-by-step explanation:
You got to find 2 points that you want and use the formula y1-y2 and x1=x2 and you find your slope.
Two sisters have decided to watch all the episodes of a popular TV show on DVD. Annie has already watched 4 episodes and will continue to watch the show at a rate of 1 episode per day. Abby, who hasn't yet seen the show, will start watching 3 episodes per day. Once the two sisters get to the point where they have watched the same number of episodes, they plan to finish the series together. How long will that take?
Answer:
2 days
Step-by-step explanation:
Assume that Annie and Abby watched the same number of episodes in [tex]t[/tex] days.
Number of episodes watched by Annie [tex]=4+1(t)=4+t[/tex]
Number of episodes watched by Abby [tex]=3t[/tex]
[tex]4+t=3t\\4=3t-t\\4=2t\\t=2[/tex]
So,
Annie and Abby watched the same number of episodes in [tex]2[/tex] days
2,490,1001 Which of the following numbers does the 5 have a greater value?
Answer:
0,0,0,1,1, 2, 4
Step-by-step explanation:
plz Mark me brainliest
Simon bought 3.5 pounds of Beef on sale for $1.25 per pound at HEB. If Simon gave the cashier $10.00, how much change would he receive from this purchase?
Answer:
$5.625
Step-by-step explanation:
Cost per pound of beef = $1.25 per pound
Number of pounds purchased = 3.5 pounds
Amount given to cashier = $10.00
Amount of change to receive from cashier =?
Amount issued to cashier - total cost of beef
Total cost of beef = (number of pounds * cost per pound)
Total cost of beef = (3.5 * 1.25) = $4.375
$10 - $4.375 = $5.625
I need to graph this on a graph and I don’t understand how
Answer:
this should be correct, im sorry im wrong.
Step-by-step explanation:
Answer:
Look at explanation
Step-by-step explanation:
y = mx + b
m is the slope, and b is the y-intercept
So basically on the y-axis, which is the vertical line, u will make a point on 4, and that point is where your line will go through. And then 3 is the slope ur line will be going in, meaning that the line will go up 3 square units, or number, while only going one square unit to the right. It's going up and right because it's a positive number. So it should look like this:
please any help? anybody
Answer:
-13
Division
Step-by-step explanation:
divide both sides by -17 in order to find the value of x