Answer:
addition
Step-by-step explanation:
Answer:
Addition
Step-by-step explanation:
PEMDAS: Parentheses, Exponent, Multiply, Divide, Add, Subtract. (The multiply and divide can be swapped, as well as the add and subtract :3) Hope this helps! :D
simplify: 1/5(10x - 20)
How many grams of aluminum hydroxide are produced when 8 moles of aluminum sulfite react in excess sodium hydroxide ?
Answer:
Number of moles Aluminium sulfide
1 mole of sulfide contains 150 g
Therefore; 16.2/150
= 0.108 moles
The mole ratio of Al2S3 : Al(OH)3 is 1:2
Therefore; moles of Aluminium hydroxide will be;
= (0.108 × 2)
= 0.216 moles
But, 1 mole of Al(OH)3 contains 77 g
Therefore, the mass of aluminium hydroxide is
0.216 moles × 77
= 16.632 g
Step-by-step explanation:
Which ordered pairs are solution(s) of y > 4x - 9? Select all that apply A (-1,3) B. (0, -9) C. (1.0) D. (2, 1)
Answer:
A.
C.
D.
Step-by-step explanation:
Use the x-coordinate in place of x and compare the solution to the y-coordinate. All of the answers to these options are true.
Hope it helps!
Which point of concurrency always lies on the interior of a triangle? Check all that apply.
A circumcenter
B. orthocenter
C. incenter
D. centroid
Answer:
incenter hope it helps
Step-by-step explanation:
The point of concurrency that always lies on the interior of a triangle is to be considered as the incenter.
What is incenter?Here the incenter refer to the concurrency point of the angle bisectors with respect to all of the interior angle.
Here, the point where three angle bisectors of the angles of the triangle should be met out is called as the incenter.
Also, the incenter should always be lies within the triangle.
Therefore, the option c is correct.
Learn more about triangle here: https://brainly.com/question/22176005
PLEASE HELP!!!!!
provide the value of the polynomial P(x)=8x2-9x+12 at x=-3.
Answer:
111
Step-by-step explanation:
Answer:
x3−8x2+19x−12 = (x−1)(x−3)(x−4)
Step-by-step explanation:
Welcome =D
Determine if the following triangles are similar. If yes, choose the correct postulate; if no,
choose no conclusion.
AA-
SSS-
SAS-
no conclusion
Answer:
WHAT THE MATH IS THIS!!!
Step-by-step explanation:
Answer:
SSS
Step-by-step explanation:
Because it shows all the lengths of each side.
what are scale drawings
Answer:
A drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount (called the scale). The scale is shown as the length in the drawing, then a colon (":"), then the matching length on the real thing.
Step-by-step explanation:
Answer:
Answer down below!
Step-by-step explanation:
A scale drawing is a drawing that is downsized. They are usually used to see how small to make a particular thing.
3(1.5x+9)= tell me NOW
Answer:
x = -6
Step-by-step explanation:
Simplifying
3(1.5x + 9) = 0
Reorder the terms:
3(9 + 1.5x) = 0
(9 * 3 + 1.5x * 3) = 0
(27 + 4.5x) = 0
Solving
27 + 4.5x = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-27' to each side of the equation.
27 + -27 + 4.5x = 0 + -27
Combine like terms: 27 + -27 = 0
0 + 4.5x = 0 + -27
4.5x = 0 + -27
Combine like terms: 0 + -27 = -27
4.5x = -27
Divide each side by '4.5'.
x = -6
Simplifying
x = -6
I need help what is 6 diveded by 386 =
A. 384
B. 330
C. 386
D. 396
Michael drove from home to work at an average speed of 50 mph. His return trip home took 30 minutes longer because he could only drive at 40 mph. Find the distance from his home to his work. A. [3 pts) Define variables to represent the unknowns and setup the necessary equations to answer the question. B. [4 pts) Algebraically solve the equation you created and express your final answer using a complete sentence and appropriate units. (You will not receive full credit if a trial and error method is used in place of an algebraic method.)
Answer:
100 miles
Step-by-step explanation:
Given :
To work :
speed = 50mph
Let time taken = x
From work :
speed = 40mph
30 minutes = 30/60 = 0.5
Time taken = x + 0.5
Distance from home to work :
Distance = speed * time
To work distance = from work distance
This can be algebraically expressed as :
50 * x = 40(x + 0.5)
50x = 40x + 20
50x - 40x = 20
10x = 20
x = 20/10
x = 2
Hence,
Distance = 50 * 2 = 100
The the distance from home to work = 100 miles
The distance from Michael home to work is 100 miles
SpeedSpeed is the ratio of the total distance travelled to the total time taken. It is given by:
Speed = distance / time
Let d represent the distance from Michael home to work. Hence:
50 = d/tt = d / 50He took 30 minutes (0.5 hours) longer when driving at 40 mph, hence:
40 = d/(t + 0.5)t = (d - 20)/40d/50 = (d - 20) / 40
40d = 50d - 1000
10d = 1000
d = 100 miles
The distance from Michael home to work is 100 miles
Find out more on speed at: https://brainly.com/question/4931057
What is the mean of 210,160,and 200
Answer:
190
Step-by-step explanation:
mean = sum of all the numbers/# of numbers
210 + 160 +200 = 570
570/3 = 190
Answer:
190
Step-by-step explanation:
you divide 570 by 3, which is 190.
Решите уравнение
a)-6(x-2) = 4r-17
B) 10x +307 - 20) = 13-20
6) (18-19) -(4-720) = -73
г)-3(4-5y)+2(3-6y)=-39
Answer:
a)-6(x-2) = 4r-17
B) 10x +307 - 20) = 13-20
6) (18-19) -(4-720) = -73
г)-3(4-5y)+2(3-6y)=-39
your uncle is offering to
Answer:
tgerggeergegrergeger
Step-by-step explanation:
Answer:
give me money
Step-by-step explanation:
Find the area of the trapezoid.
4 cm
12 cm
3
cm
Answer: 30
Step-by-step explanation:
A=a+b
2h=12+3
2·4=30
Answer: 24
Step-by-step explanation:
Use the pythagorean Theorem to prove the three sides of the triangle are the three sides of a right triangle. Show all of your work. 2,4,2,√3
Answer:
[tex]2^{2}[/tex] + [tex](2\sqrt{3}) ^{2}[/tex] = 4 + 4 * 3 = 16 = [tex]4^{2}[/tex]
Step-by-step explanation:
The Pythagorean Theorem states that the two shorter sides of a right triangle squared and added together will equal the longest side (hypotenuse) of the right triangle squared. The longest side of this right triangle is 4, 4 squared is 16. The two shorter sides of the right triangle are 2 and [tex]2\sqrt{3}[/tex], squared individually would be 4 and 12, and added together they also equal 16. These sides are a valid input for the Pythagorean Theorem, so these three sides are the sides of a right triangle. 2 and [tex]2\sqrt{3}[/tex] being the legs of the right triangle, and 4 being the hypotenuse.
Two angles are supplementary. One angle measures (4x+13) degrees and the other measures (5x-4) degrees. What is the measure of the smaller angle
Answer: 89
Step-by-step explanation:
Guys help! I need a right answer for this.
Answer:
68
Step-by-step explanation:
96 (DE) divided by 32 (AB)
which gives you 2
34 times 2 is 68
Which inequality is represented by this graph? 0 - 345> x O 0 -34.5 0 -355 cx
Answer:
Step-by-step explanation:
If x is the white dot on the graph:
From what it looks like, x is right between -35 and -34 x (which is -35.5).
If that is the case then none of the answers are correct since -35.5 is equal or less than x. (the sign looks like this: "[tex]\leq[/tex]" )
But if you have to choose one of the answers then number 4 (-35.5 < x) would be closest.
You are going to Wal-Mart to buy DVD's. The DVD'sare packaged in a box. There are thirty five DVDs in the box. You only want five. The box cost forty-five dollars. How much did you pay? How much change do you get back if you pay with fifty dollars? Explain the order of operations that was used.
Answer:
DVD sales have been on the decline for over a decade, but a slew of new streaming services and a shift in how consumers are watching movies and TV shows could be the final death knell for the technology.
The same can be said for Blu-Ray discs.
At its peak, DVD sales reached $16.3 billion and were 64% of the U.S. home video market. That was 2005. These days, DVD sales account for less than 10% of the total market, with total sales hitting $2.2 billion in 2018.
Blu-Ray discs, which have always been slightly more expensive than DVDs, launched in 2006. At most, Blu-Ray sales reached $2.37 billion in 2013, before falling to $1.8 billion in 2018. It’s likely that Blu-Ray sales fractionally impacted the decline of DVD sales, but the fact that DVD sales still outpace Blu-Ray sales shows it’s not the real culprit.
Instead, a combination of the Great Recession, a rise in customers buying on-demand and digital copies of films and the launch of streaming services is what has caused DVD sales to decline more than 86% in the last 13 years.
Step-by-step explanation:
How many solutions does this equation have? 6x - 8 = -4x - 12*
No Solution
Infinitely Many Solutions
1 Solution
Answer:
1 solution
Step-by-step explanation:
NEED HELP HURRY!!!!!
Is it similar or not similar ?
Answer:
not similar because the lengths aren't the same.
is 1/2 = 20/40 an equivalent fraction?
What central tendency means to find the number that occurs most often?
Median
Mean
Mode
Range
Answer:The mean is the most frequently used measure of central tendency because it uses all values in the data set to give you an average. For data from skewed distributions, the median is better than the mean because it isn't influenced by extremely large values.
Step-by-step explanation:
What does - |15/-3| equal ?
Answer:
Step-by-step explanation:
It equals 60 because 15-3 is 12 and 12 of 6 is 60 and minus 2
A penguin starts at 15 meters above sea level and ends at 7 meters below sea level. What is the change in elevation?
Answer:
22 meters
Step-by-step explanation:
If the penguin goes from 15 meters above sea level to sea level (0 meters), they traveled 15 meters in elevation.
Then they traveled another 7 meters when going 7 meters below sea level.
15 + 7 = 22
Hope this helps :)
(-2+6y+3x)(-3) distributive property to remove the parentheses
Answer:
6-18y-9x
Step-by-step explanation:
turn 15/6 into a mixed number
Answer:
2 3/6
Step-by-step explanation:
divide 15 by 6 to get 2, and left with a remainder of 3.
A white-tailed deer is running from a black bear at 20 miles per hour. It is 1/3 miles in front of the bear. The bear is running at 30 miles per hour. How many minutes will it take the bear to catch the deer? Assume both continue running at a constant pace.
Answer:
Step-by-step explanation:
d=20t+1/3, b=30t
20t+1/3=30t
10t=1/3
t=1/30 hr
t=(1/30)60=2 min
ANSWER QUICK PLS ANSWER QUICK PLS
Pls answer all questions
Answer:
this is the closest i can get to the answer
1. 0.33/1 = 0.33
2. how much it costs per ounce
3. it represents the facts that it costs 0.33 per ounce
4. y=0.33x+0.33
sorry if it's wrong
Each term of the first polynomial is ____________ to each term in the second polynomial
Combine any _______ ___ to simplify
9514 1404 393
Answer:
multipliedlike termsStep-by-step explanation:
To multiply two polynomials, each term of the first polynomial is multiplied to each term in the second polynomial. Combine any like terms to simplify.