Answer:
x<3
Step-by-step explanation:
5x+12+3x<36
First subtract 12 from both sides.
5x+3x<24
Next combine like terms on the left side (5x and 3x)
8x<24
Next divide 8 from both sides
x<3
Find the reciprocal of the number 2/7
Answer:
7/2
Step-by-step explanation:
The reciprocal is basically just flipping the fraction upside down. Reciprocal is also called inverse.
Can someone help me find the value of N in the triangle and round the answer to two decimal places
Answer:
n ≈ 8.54
Step-by-step explanation:
Reference angle = 30°
Opposite side = n
Adjacent side = 14.8
Apply TOA, which is:
Tan 30 = opp/adj
Tan 30 = n/14.8
Multiply both sides by 14.8
14.8×tan 30 = n
8.54478398 = n
n ≈ 8.54 units (to 2 dp)
4. The costs of different sizes of bottled sport drink are shown. Which bottle costs the least per ounce?
Size
8 oz
16 oz
24 oz
32 oz
Price
$0.89
$1.09
$1.89
$2.39
A. The 8 oz bottle
B. The 16 oz bottle
C. The 24 oz bottle
D. The 32 oz bottle
You are given the task of building detention ponds to remove settleable solids from a small stream prior to discharge into a lake. The ponds must be 2 m deep, the flow in the stream is 20 cfs, the solids settle at a rate of 0.2 m/day, and you must achieve a steady-state removal of 65% of the solids.
a. Determine the size of a single CSTR to achieve the desired removal.
b. Determine the sizes of a pair of identical CSTRs in series needed to achieve the desired removal.
Answer:
a) 513775.5 m^3 ≈ 51.38 * 10^4 m^3
b) 256887.75 m^3 ≈ 25.69 * 10^4 m^3
Step-by-step explanation:
Given data :
Depth of pond = 2m
flow in the stream = 20 cfs = 4.8931 * 10^4 m^3/day
settling rate = 0.2 m/day
rate constant ( k )= 0.2 / 2 = 0.1 / day
steady-state removal of the solids required = 65%
A) determine size of a single CSTR to achieve 65%
First determine the time required to achieve this using the relation below
C = [tex]c_{o} e^{-kt}[/tex]
∴ t = [tex]\frac{-1}{k}* ln( 1 - 0.65 )[/tex]
= ( -1 / 0.1 ) * (- 1.05 ) = 10.5 day
The size of a single CSTR required = ( 4.8931*10^4 ) * (10.5 ) = 513775.5 m^3
B) determine the sizes of a pair of identical CSTRs in series needed to achieve the desired removal
sizes of a pair = 513775.5 / 2 = 256887.75 m^3
HELPPPPP PLSSSSSSSS!
Answer:
a8 12 16 b.5 65 3
Step-by-step explanation:
ere
47 = 77 - b; 20, 30, 40
PLEASE HELP DUE IN 30 MINUTES!!
Answer:
Its Pi (3rd option)
Step-by-step explanation:
Or known as: π
Answer:
thats incorrect, the correct answer i believe is the pi symbol (the third option)
Step-by-step explanation:
Most numbers used in everyday life can be categorized as rational numbers, which means they can be written as a simple fraction or decimal. Pi is an irrational number, a number that is non-repeating and non-terminating. ... In fact, its been proven that between every two rational numbers is an irrational one.
I hope this helps!
Hiro rolls a fair pair of six-sided dice. The sample space of all possible outcomes is shown below.
Let AAA be the event that the first die is one and BBB be the event that the sum of the dice is eight.
What is P(A\text{ or }B)P(A or B)P, left parenthesis, A, start text, space, o, r, space, end text, B, right parenthesis, the probability that the first die is one or the sum of the dice is eight?
\qquad
Answer: [tex]\dfrac{11}{36}[/tex]
Step-by-step explanation:
Total outcomes for rolling a pair of six-sided dice n(S)= 6 x 6 =36
Let A be the event that the first die is one and B be the event that the sum of the dice is eight.
A = {(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)}
P(A)= [tex]=\dfrac{n(A)}{n(S)}=\dfrac{6}{36}[/tex]
B= {(2,6), (6,2), (3,5), (5, 3), (4,4)}
P(B)= [tex]=\dfrac{n(B)}{n(S)}=\dfrac{5}{36}[/tex]
A ∩ B = Ф
P(A ∩ B)=0
P(A or B)= P(A)+P(B)+P(A∩ B)
[tex]=\dfrac{6}{36}+\dfrac{5}{36}+0\\=\dfrac{11}{36}[/tex]
Hence, P(A or B) = [tex]\dfrac{11}{36}[/tex]
If m 2 n, which inequalities must be true? Check all that apply.
Om + 2.1 > n + 2.1
m - (-4) 2 n-(-4)
m + 3 n-3
16.5 + m > 16.5 + n
1
U
m 2 n +
U
9 + m > 6+n
Answer:
[tex](a)\ m+ 2.1 > n + 2.1[/tex]
[tex](b).\ m - (-4) > n - (-4)[/tex]
[tex](c)\ 9 +m> 6 + n[/tex]
Step-by-step explanation:
Given
[tex]m > n[/tex]
Required
Select true inequalities
[tex](a)\ m+ 2.1 > n + 2.1[/tex]
Subtract 2.1 from both sides
[tex]m > n[/tex]
This is true
[tex](b).\ m - (-4) > n - (-4)[/tex]
Open brackets
[tex]m + 4 > n + 4[/tex]
Subtract 4 from both sides
[tex]m > n[/tex]
[tex](c)\ 9 +m> 6 + n[/tex]
[tex]m> -9+6 + n[/tex]
[tex]m> n-3[/tex]
This is also true
Answer:
A,B,D
Step-by-step explanation:
Given m ||n, find the value of x.
+
(x+18)
(5x-6)°
Answer:
x = 28
Step-by-step explanation:
(x + 18)° + (5x - 6)° = 180° (supplementary angles)
Solve for x
x + 18 + 5x - 6 = 180
Add like terms
6x + 12 = 180
6x = 180 - 12 (subtraction property of equality)
6x = 168
x = 168/6 (division property of equality)
x = 28
I quite literally have no idea , please help
Answer:
The trapezoid is D
Step-by-step explanation:
I learned this in 3rd grade
— 3х – 6+(-1)
do anybody know this answer
Step-by-step explanation:
its -3x-6+(-1)? if yes please let me know. thanks
Answer:
x = -10
Step-by-step explanation:
First combine like terms; -6 + -1 = -7, since + a negative is just minus.
(So -6 - 1.) Rewrite the equation as -3x - 7. Divide x from both sides, so
-3 - 7 = x. Simplify into x = -10.
I'm so sorry if I'm wrong, I hope this helps though!
The high temperature is 35 degrees and the low is -2 degrees. What is the difference between the high temp and low temp?
Answer:
33
Step-by-step explanation:
Answer:
It should be 37
Step-by-step explanation:
sorry if its wrong
can someone please help?!
Answer:
F
Step-by-step explanation:
Answer:
I believe the answer is f.
A new vending machine costs $4,500.00 and it is on sale for 10%. What is the price of the vending machine after the discount is applied?
Answer: Probably $4,050
Step-by-step explanation:
The way you worded this is weird but I’m assuming you meant 10% off. Find 10% of 4500 (which is 450) and subtract that from the total, giving you 4050.
pllzzzzzzzz hdlp me i give u alot of points help me out its English not mAth
1) No, I have not been in a situation thankfully. But if I was in that situation, where someone was texting while driving, what I would do is turn the person’s phone to silent so that the person won’t get distracted. In addition, I would grab the person’s phone and keep it with me so that the phone is out of reach from the person driving and so that they won’t get distracted or curious and what notifications the are getting.
2) Spending time reading the received or to send a text just for 5 seconds, can increase your chance of crashing. It might seem that’s it not possible to crash just for looking on your phone for only 5 seconds, but it can happen.
3) I personally do think that it’s worth monetary and punitive price if you are caught texting and driving because you are risking the chance of not only getting yourself in danger, but everyone and everything around you. Paying the price will be a helpful reminder to not text and drive at the same time because it will teach you that there are consequences from texting and driving. In addition, if you did hit someone or something, that can not be undone and will effect you and other people. Paying a price can be done but potentially killing something or someone can not be done.
4) A few things that can help you not drive and text at the same time is the following:
- Simply just put your phone in silent. This will help the noises and vibrations from your phone notifications be silent and will help you not be distracted. This is a definitely number 1 rule to keep your eyes on the road instead of your phone.
- If you are with someone else, let the other person text for you so that you don’t have to look and take your hands off the wheel. Simply just say what you want to text to the other person so that they do your job for you.
- Put your phone somewhere you can’t reach it. For example, put it in the backseat so it’s not easy for you to reach it. This will help you not get tempted to grab your phone.
5) To a teenager, the advice I would give is the same things I put for question 3. I think that these steps applies not just for teenagers but for everyone who can drive, no matter the age. Now, to the individuals who think that it’s necessary to drive and text at the same time, what I would say to them is “threaten them” not in a bad way, but what I would say is “There has been a lot of cops around here, you should put your phone away or else you can get a ticket”. It will scare them because who wants to pay a ticket? No one right? If the person is stubborn because sometimes people think they are right and refuse to be in the wrong, just don’t ride with them. Why put yourself at risk? If they get hurt or get something hurt, it’s their fault. Just remember to never go on your phone while driving. Not only are you putting yourself at risk being hurt or even killed but putting everyone and everything else at risk by getting hurt or killed.
I hope this helped! :D
what is the answer to this question
1/2 x -7=1/3(x-12)
Answer:
= 1 8 hope this helps!!! :)
Step-by-step explanation:
1 2 ⋅ −7 = 1 3 ( − 1 2 )
1 2 − 7 = 1 3 −1 2 )
1 2 − 7 = 1 3 − 1 2 )
Multiply by 1
Combine multiplied terms into a single fraction
Multiply by 1
Add to both sides of the equation
Answer:
x = 3/2 = 1 1/2 = 1.5
Step-by-step explanation:
1/2 x -7=1/3(x-12)
Multiply 1/2 and -7 to get -7/2
-7/2 = 1/3(x-12)
Fraction -7/2 can be rewritten as -7/2 by extracting the negative sign.
- 7/2 = 1/3(x-12)
Use the distributive property to multiply 1/3 by x−12.
-7/2 = 1/3x + 1/3(-12)
Multiply 1/3 and −12 to get -12/3
-7/2 = 1/3x + -12/3
Divide −12 by 3 to get −4.
-7/2 = 1/3x + 4
Swap sides so that all variable terms are on the left hand side.
1/3x -4 = -7/2
Add 4 to both sides.
1/3x = -7/2 + 4
Convert 4 to fraction 8/2
1/3x = -7/2+8/2
Since -7/2 and 8/2 have the same denominator, add them by adding their numerators.
1/3x = -7+8/2
Add −7 and 8 to get 1.
1/3x = 1/2
Multiply both sides by 3, the reciprocal of 1/3
x = 1/2 x 3
Multiply 1/2 and 3 to get 3/2
x = 3/2
A teacher wants to split 5 erasers between 2 students equally.
How many erasers will each student get?
Answer:
2.5
Step-by-step explanation
2 divided by five is 2.5
There are 1,600 students at a university. 24% of students are sophomores, 20% are juniors, and 28% are seniors. How many students at the university are freshmen?
Answer:
There are 448 freshmen
Step-by-step explanation:
Solve the equation 2(x-3) = 14
Simplify the ratio 100:120
50 points! Mhanifa please answer I will mark brainliest
Answer:
C. OBTUSE
Step-by-step explanation:
2. Paris was the son of the king and queen of Troy. When he was born, his mother dreamed that she was giving birth to a flaming torch. Fearful that this was a bad omen, King Priam ordered that the child be left on a hillside to die.
the answer is a. There is 1 as a right angle.
hurry I'm timed I need the answer asap [tex]2000x9000[/tex]
Answer:
18000000
Step-by-step explanation:
2000 x 9000 = 18000000
9 x 2 = 18
there are 3 0's on the 2 and 3 0's on the 9 so we are going to add them together.
000 + 000 = 000000
put the two answer together and they equal...
18000000
Step-by-step explanation:
2000x9000=18000000is. your answer
SOMEONE PLEASE HELP ME ASAP THIS IS ALMOST DUE ILL MARK BRAINLIEST!!!!
Yesterday, there were 80 problems assigned for homework. Harry did 20% of them correctly. How many problems did Harry get right?
Answer:
16 i think
Step-by-step explanation:
PLS HURRY
Use the protector to measure the angle.
The diagram shows a right-angled triangle.
15 cm
hcm
31
What is the value of h?
Give your answer correct to 1 decimal place.
The diagram is missing, so i have attached it.
Answer:
h = 7.7 cm
Step-by-step explanation:
From the attached image, we can see that the hypotenuse is 15 cm with the opposite side being h cm.
The angle is 31°
Thus, using trigonometric ratio, we have;
h/15 = sin 31
h = 15 sin 31
h = 15 × 0.5150
h = 7.725
Approximating to 1 decimal place gives;
h = 7.7 cm
A_________"slides" an object a fixed distance in a given direction *
O translation
O rotation
O reflection
O dilation
Crisette lives miles from the school. She rode her bike of the way and stopped to get ice cream. How far did Crisette ride to get ice cream?
Answer:
The amount is not showing
Step-by-step explanation:
Find the distance between A and B.
Ahh I need help
what are the options please ?