The solid substance that settles down is called sediment. This entire process is known as sedimentation. The clear water (supernatant liquid) is then poured out carefully into another beaker, leaving the sediments undisturbed. This process is known as decantation.
find the perimeter of a figure with the following side lengths: 3x , 5x and 7x ? i need help.
Answer:
15x
Step-by-step explanation:
perimeter is the sum of all sides
3x + 5x + 7x = 15x
Which equation represents the graphed function?
y = 4x – 2
y = –4x – 2
y = StartFraction one-fourth EndFraction.x – 2
y = – negative StartFraction one-fourth EndFraction.x – 2
Answer:
[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{:}\ [/tex]
The graph of the function is the set of all points (x,y) in the plane that satisfies the equation y=f(x) .
The y value of a point where a vertical line intersects a graph represents an output for that input x value.
now,
equation which represents the graphed function is:y =
StartFraction one-fourth EndFraction.x – 2
Answer:
c
Step-by-step explanation:
how much tax will i pay on a $54.99 video game? (6% tax rate)
Answer:
3.299 or 3.3
Step-by-step explanation:
54.99(.06)=3.2994
Evaluate the expression for v = 1.
3v =
Answer:
3
Explanation:
If v = 1, then 3v really means 3(1), or 3 · 1
Can someone please help me with math.
Answer:
C 300
Step-by-step explanation:
For this one all you have to do is find where the lines intersect
They intersect at (300,55) (remember x = # of minutes and y = cost)
At 300 minutes both plans cost $55 therefore the answer is C
Help ASAP!!!!
Select all expressions that are perfect squares.
Group of answer choices
2x^2+20x+100
9x^2+24x+16
(7−3x)^2
(5x+4)(5x−4)
(1−2x)(−2x+1)
4^2+6+9/4
Answer:
2x^2+20x+100, 9x^2+24x+16, (1−2x)(−2x+1), (5x+4)(5x−4), (7−3x)^2
The expressions that are perfect squares are:
2x² + 20x + 100
9x² + 24x + 16
(7 - 3x)²
To determine which expressions are perfect squares, we need to check if they can be written in the form of (a + b)², where a and b are real numbers.
Let's go through each expression:
2x² + 20x + 100:
This expression can be factored as (x + 10)², so it is a perfect square.
9x² + 24x + 16:
This expression can be factored as (3x + 4)², so it is a perfect square.
(7 - 3x)²:
This expression is already in the form (a - b)², so it is a perfect square.
(5x + 4)(5x - 4):
This is the difference of squares, not a perfect square itself.
(1 - 2x)(-2x + 1):
This is the difference of squares, not a perfect square itself.
4² + 6 + 9/4:
Simplifying, we get 16 + 6 + 9/4 = 22 + 9/4.
This expression is not a perfect square.
To learn more on Expressions click:
https://brainly.com/question/14083225
#SPJ2
In 2000, U.S. trade with Saudi Arabia totaled $20.6 billion. Of this total,
$6.2 billion were U.S. exports to Saudi Arabia. What percent of its total
trade with Saudi Arabia were U.S. exports?
Answer:
30.1%
Step-by-step explanation:
Find the percent that was US exports by dividing 6.2 by 20.6, then multiplying it by 100
(6.2/20.6) x 100
= approximately 30.1
So, approximately 30.1% of the trade was US exports
Find the area of the figure.
Hurry please.
Please answer the problem above
Answer:
Step-by-step explanation:
Length of rectangle = 12 cm
Width of the rectangle = 6 cm
Area of the rectangle = 12 × 6
= 72 cm²
Area of two semicircles = [tex]2(\frac{1}{2}\pi r^2 )[/tex]
= πr²
Here, r = radius of the semicircle
From the picture given,
Radius = [tex]\frac{6}{2}[/tex]
= 3 cm
Area of two semicircles = π(3)²
= 9π
= 28.27 cm²
Area of the entire composite figure = Area of the rectangle + Area of two semicircles
= 72 + 28.27
= 100.27 cm²
the area of a triangular
Answer:
1/2
Step-by-step explanation:
Hope it helps!:)
Help me pleaseeeeeeee!!!
Answer:
105 cm^2
Step-by-step explanation:
perimeter of the pentagon = 3 x 5 = 15 cm
lateral area of the prism = perimeter x height = 15 x 6 = 90 cm^2
lateral area of the pyramid = (slant height x perimeter)/2 = (2x15)/2 = 15 cm^2
total lateral area = 90 + 15 = 105 cm^2
Simplify the expression 4(−3b)(+a) +
8ab ÷ 2a × 4a.
please ans briefly
Answer:
4ab
Step-by-step explanation:
4(-3b)(+a)+8ab÷2a×4a
4(-3ab)+8ab÷2a×4a
-12ab+8ab÷2a×4a
-12ab+4b×4a
-12ab+16ab
16ab-12ab = 4ab
Make y the subject of the formula
w = x - 2yz
Answer:
w = x - 2yz
w + 2yz = x
2yz = x - w
y = (x - w)/2z
A rectangular boat dock has an area of 432 square feet and a length of 18 feet. Which is the perimeter of the boat dock?
mind if someone does this? its based on angles<3
Answer:
1) 110 *Degrees
2)52 * Degrees
Step-by-step explanation:
1) 180 - 40 -30 = 110
2) 90 - 38 = 52
The scores on an exam were normally distributed with a mean of 84 and a standard deviation of 5. What is the probability that a randomly selected class member scored above 79? Answer as a percentage.
Answer:
0.841 (equivalent to 84.1%
Step-by-step explanation:
Chances are that your calculator has several different probability distribution functions built in. Here we need the function normal(
Typing that into a calculator, as follows, returns a decimal fraction which also represents the percentage of the time that a randomly selected class member scored above 79:
normalcdf(79, 1000, 84, 5) = 0.841 (equivalent to 84.1%)
Can someone pleaseeee help and if you’re correct i’ll give brainliest
Answer:
2826
Step-by-step explanation:
Rosalina wants to replace her TV stand and found one for $300. If she continues to deposit $40 a week, how many weeks must she wait until she has enough money to buy the TV stand?
PLEASE INCLUDE AN EXPRESSION AND AN ANSWER THAT ANSWERS THE QUESTION
Answer:
8 weeks
Step-by-step explanation:
The equation to find how much money she would have after each week is 40x where x is the amount of weeks. When she goes 8 weeks she will finally cross $300 by having $320.
pls help will mark brainliest
Answer:
$3720
Step-by-step explanation:
If he makes $40 an hour for 60 hours, he makes $2400 there on the spot.
He worked 11 hours overtime, but it is double time, so 22 hours, and also, one and a half overtime pay, So, 22 hours × 40 × 1.5 = 22×60=1320. So, he made $1320 for working overtime.
In total, he made a total of 1320+2400=3720.
He made $3720.
Please Answer This, the question is on the picture.
will mark brainllest if its right
Answer:
15/17
Step-by-step explanation:
Cosine is equal to adjacent/hypotenuse. Since we don't have the hypotenuse in this case, we need to solve for it.
15^2+8^2=c^2
c=17
We get 17 for the hypotonuse.
Plug it into the equation adjacent/hypotenuse and you get 15/17
Find the GCF for the post
-21x^3 , 6x^4
The greatest common factor is
Answer:
3x^3
Step-by-step explanation:
The graph shows how the height of a balloon is changing over time.
BALLOON HEIGHT
Height
Time
Which quantity is given by the slope of the line on the graph?
A
the time the balloon stays in the air
B
the rate at which the balloon is rising
С
the final height of the balloon
D
the starting height of the balloon
Answer:
B. The rate at which the balloon is rising.
Step-by-step explanation:
Mathematically speaking, the slope of the line represents the change in dependent variable (Height) divided by the change in independent variable (Time). According to the graph, a postive change in time leads to a positive change in height, meaning that slope is positive. Physically speaking, the slope represents the rate of change at which the height of the ballon is rising.
Hence, correct answer is B.
A train is moving at an average speed of 424/4 hm/h. How much distance will it cover in 16/5 hours?
Answer:
339.2hm
Step-by-step explanation:
The measure of one side of a square is (s+3) inches long. which pair of expressions both represent the perimeter of this square?
Answer:
D. 4(s + 3) & (s + 3) + (s + 3) + (s + 3) + (s + 3)
Step-by-step explanation:
We know this is a square (which is a polygon, which requires at least 3 sides), so A & B are out. C is also out because of the first expression. All 4 sides are s + 3; what the first expression on C is saying is we're adding a 5th side of 3 to 4 sides with length s. That leaves D as our answer. Bonus: Another expression that could work for this is 4s + 12 (which is both of D's expressions simplified.).
I’m confused. lol. Pls help
Answer:
(-3,1) dhdjdjdjdjejdhdjehehdhdjddjdjddh
(-3,1)
Suppose a city with population 800,000 has been growing at a rate of 7% per year. If this rate continues, find the population of this city in 17 years.
Answer:
1,752,000
Step-by-step explanation:
1. First you have to take the 7% and multiply that by the years whish is 17 so that way you know your total percentage of growth which is 119%
2. Second you then need to find how much 1% is to find out our total growth in population so you take 800,000 and divide that by 100 since there's only 100% and you get 8,000.
3. Now you take the 8,000 and multiply that by the percentage of the growth that you have which is 8,000*119 and you get 952,000
4. Lastly all you have to do is add the growth of the population to the population you already have so 800,000+952,000=1,752,000
The nth term of a sequence is given by 12 - 5n.
Write down the first 3 terms of the sequence.
Answer:
[tex]\bold{a_1=7\,,\quad a_2=2\,,\quad a_3=-3}[/tex]
Step-by-step explanation:
[tex]a_n=12-5n\\\\\\a_1=12-5\cdot1=12-5=7\\\\a_2=12-5\cdot2=12-10=2\\\\a_3=12-5\cdot3=12-15=-3[/tex]
Need help with this please
Answer:
blurr...
Step-by-step explanation:
Please help if you want brianleist (no links please!) Ty!
Answer:
The answer is 40 can I please get brainleist
The results of a study exhibit response bias. Select the statement that best describes the bias in the study.
There were not enough subjects who chose to respond to a survey that was sent as part of the study.
The interviewer for the study was the boss of the subjects.
The interviewer for the study did not record the responses of the subjects accurately.
* There was a significant amount of people who declined to participate in the study.
Answer:
"The interviewer for the study did not record the responses of the subjects accurately." I believe this is most pertinent. B, or the boss of the subjects, could have been an answer, but if all members associated in the study exhibit the similar level of response bias based upon superior employers, then the study remains somewhat accurate, but C, or inaccurate record of responses, would remain biased entirely.
Step-by-step explanation:
Answer:
It's C on edge.
Step-by-step explanation:
Did assignment.