Answer:
D
Step-by-step explanation:
Comment above.
3-6(-2 - 2) + (-2 - 2) + (-2 - 2)
Answer:
19
Step-by-step explanation:
Answer:
16 is the answer
Step-by-step explanation:
3-6(-2-2)+(-2-2)+(-2-2)
-6(-4)+(-4)+(-4)
+24-4-4
20-4
16
The conversion of ammonium cyanide to urea is a second-order reaction. This means that the concentration C of ammonium cyanide at time t is given by 1/C = kt + 1/C0, where C0 is the initial concentration and k is the rate constant. Assume the initial concentration is known to be 0.1 mol/L exactly. Assume that time can be measured with negligible uncertainty.
a. After 45 minutes, the concentration of ammonium cyanide is measured to be 0.0811 ? 0.0005 mol/L. Estimate the rat? constant k, and find the uncertainty in the estimate.
b. Use the result in part (a) to estimate the time when the concentration of ammonium cyanide will be 0.0750 mol/L, and find the uncertainty in this estimate.
Answer:
your answer could be A
Step-by-step explanation:
how many 2/3 cup servings of soup are in 4 cups of soup?
Answer:
almost 6 servings
Step-by-step explanation:
2/3=.667
4/.667=5.99
Answer:
6 cup servings
Step-by-step explanation:
Hope this helps
-2(3x - 4) + 7
divided by 3
Answer:
-6x+31/3
Step-by-step explanation:
If your car gets 28 miles per gallon and you travel 30 miles round-trip to work five days a week, how much do you pay each 4-week
month if gas is $3.05 a gallon? (Round your answer to 2 decimal places.)
please help
Answer:
You'd pay $65.35 every 4 weeks
Step-by-step explanation:
First you have to gather all the miles.
30 miles x 5 = 150
So that is 150 miles/per week
Then you have to devide the miles by how many gallons per gas you travle.
150/28 miles per gallon = 5.3571....
That how many gallons you'll need a week.
Now, you times the gallons by the price of the gas
5.3571... x $3.05 = $16.3392...
Finally you times the amoutn of money for a week time 4 weeks.
$16.3392... x 4 = $65.35 (to the two decimal mark)
Hope this helped you! : )
What is the area of the triangle below?
Answer:The area of the triangle is given by the formula mentioned below: Area of a Triangle = A = ½ (b × h) square units where b and h are the base and height of the triangle, respectively. Now, let’s see how to calculate the area of a triangle using the given formula.
Step-by-step explanation:
Using the equation below, determine the range for the given domain values.
y= x 4 ; D={-4, 2, 8}
If it is :
[tex]y = f(x) = {x}^{4} [/tex]
_________________________________
[tex]f( - 4) = ({ - 4})^{4} = 256 [/tex]
_________________________________
[tex]f(2) = {2}^{4} = 16 [/tex]
_________________________________
[tex]f(8) = {8}^{4} = 4096 [/tex]
Range = { 16 , 256 , 4096 }
##############################
If it is :
[tex]y = f(x) = 4x[/tex]
_________________________________
[tex]f( - 4) = 4( - 4) = - 16[/tex]
_________________________________
[tex]f(2) = 4(2) = 8[/tex]
_________________________________
[tex]f(8) = 4(8) = 32[/tex]
Range = { -16 , 8 , 32 }
##############################
And we're done.....♥️♥️♥️♥️♥️
Which of the following is NOT true?
Answer
B and C are true for sure but i am not sure about A or C.... i think it is C
Step-by-step explanation:
The water company installed a 40 yard diagonal brace on a water tower between two vertical beams that are 12 yards apart as shown. Determine the height of each vertical beam.
Answer:
The lengths of the legs of a right triangle are 15 meters each. The length of the hypotenuse of a right triangle is 50 inches.
Step-by-step explanation:
Here is thetower it is talking about (illistration)
1. Identify the plane parallel to plane ACE
Answer:
It has parallel sides
Step-by-step explanation:
Find the value of g when 5g+15 equals 2g+27 . Use pencil and paper. Explain how you can check that the value you found for g is correct. If your check does not work, does that mean that your result is incorrect? Explain.
Answer:
its b
Step-by-step explanation:
A theater has 20 rows of seats. If there are 12 seats in the 1st row, 16 seats in the 2nd row, 20 seats in the 3rd row, and so on, how many seats are there in the last row?
Awser=88
The number of candies in the box is between 80 and 100. It is possible to divide all the candies among 2, 3 or 5 children. How many candies are in the box?
Write the following ratio in their simplest form 80cm:40cm
Answer:
The average ratio of 80cm and 40cm is 60cm
Step-by-step explanation:
please mark brainiest
Answer:
2cm:1cm
Step-by-step explanation:
80cm:40cm then divide that by a number that they can both be divided by which is 40.
Their total bill is $356.88. If they pay $220 in cash and charge the remainder, how much will they charge?
Answer:
$136.88
Step-by-step explanation:
$356.99
-$220.00
________
$136.88
Therefore that would be the remainder.
Hope this helped : )
Answer:
They will charge $136.88
Step-by-step explanation:
Elizabeth is correct.
Findinf the remainder in this situation means finding the difference (subtraction)
356.88 - 220 = 136.88
Which two triangles are congruent by the SAS Theorem? Complete the congruence
statement.
Answer:
Triangle BCD is congruent to triangle EGF by SAS theorem
you can substitute words for symbols if needed
Step-by-step explanation:
What is the value of k in the equation below?
5 k minus 2 k = 12
1 and one-fifth
1 and StartFraction 5 Over 7 EndFraction
3
4
Answer:
The answer is D: 4
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Write and solve an equation to find the value of x and the missing angle measures.
what is that measure of
Step-by-step explanation:
Hey there!
After looking at the figure we can state that;
X + 53° = 105°. { the exterior angle is equal to the sum of adjacent interior angle}
X = 105° - 53°
Therefore, X = 52°
Hope it helps...
What is the solution to the system of equations?
3x+10y=-47
5x - 7y=40
O (1.-5)
O (1,5)
0 (-1,-5)
0 (-1,5)
Answer:
x=1 ,y=-5
Step-by-step explanation:
3x + 10y = 47
5x - 7y = 40
____________
21x + 70y = 329. equ 1
50x - 70y = 400. equ 2
subtract equ 1 from 2
=71x = 71
divide both sides by the 71
71/71 = 71/71
x = 1
_________
to find y
substitute x into either equ 1 or equ 2
am using equ 2
5x - 7y = 40
5(1) - 7y = 40
5 - 7y = 40
7y = 5 - 40
7y = -35
divide both sides by the coffecient of y
7y/7 = -35/7
y = - 5
which of the following are not polynomials
Answer:
A, B, C
Step-by-step explanation:
The variables in a polynomial term are non-negative integers.
A: x is to 1/2 power (square root) . . . not a polynomial
B: x is to -2 power . . . not a polynomial
C: x is to -2 power . . . not a polynomial
D: x is to powers of 2 and 1 . . . is a polynomial
The choices A, B, and C are not polynomials
Flying against the wind, it took a small plane 4 hours to fly the 600 miles between Portland and Sacramento. On the return flight, it took 3 hours to make the trip flying with the wind. Find the speed of the plane and the speed of the wind.
-3 (4-2x) = 4 - 2x I can't seen to get this one
Let's see what to do buddy...
[tex] - 3(4 - 2x) = 4 - 2x[/tex]
Subtract the sides of the equation minus( 4 - 2x ) :
[tex] - 3(4 - 2x) - (4 - 2x) = 0[/tex]
Factoring ( 4 - 2x ) :
[tex](4 - 2x)( - 3 - 1) = 0[/tex]
[tex](4 - 2x)( - 4) = 0[/tex]
Divided the sides of the equation by -4
[tex]4 - 2x = 0[/tex]
Subtract the sides of the equation minus 4
[tex] - 2x = - 4[/tex]
Negatives simplified.
[tex]2x = 4[/tex]
Divided the sides of the equation by 2
[tex]x = \frac{4}{2} \\ [/tex]
[tex]x = 2[/tex]
_________________________________
And we're done...
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
What is the solution to the equation?
3 (4x - 1) + x = 5x – 4(1 – 2x) +1
..................................
Step-by-step explanation:
What's Yo Question ?
Change each percent to a fraction or a mixed number. Reduce if possible
3%
51%
289%
325.4%
Answer:
3/100
51/100
2 89/100
3 25.4/100
The data below represent commute times (in minutes) and scores on a well-being survey. Complete parts (a) through (d) below. Commute Time (minutes), x 5 15 30 35 50 84 105 Well-Being Index Score, y 69.1 67.8 66.2 65.9 64.6 62.6 60.2 (a) Find the least-squares regression line treating the commute time, x, as the explanatory variable and the index score, y, as the response variable. y=negative 0.083−0.083x+69.04069.040 (Round to three decimal places as needed.) (b) Interpret the slope and y-intercept, if appropriate. Interpret the slope. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. For an index score of zero, the commute time is predicted to be nothing minutes. (Round to three decimal places as needed.) B. For every unit increase in index score, the commute time falls by nothing, on average. (Round to three decimal places as needed.) C. For a commute time of zero minutes, the index score is predicted to be nothing. (Round to three decimal places as needed.) D. For every unit increase in commute time, the index score falls by nothing, on average. (Round to three decimal places as needed.) E. It is not appropriate to interpret the slope.
Answer:
(a) [tex]\hat y=69.04-0.083\cdot x[/tex]
(b) D. For every unit increase in commute time, the index score falls by 0.083, on average.
Step-by-step explanation:
(a)
Form the least-squares regression line using Excel as follows:
Go to Data → Data Analysis → Regression
A dialog box will open.
Select the X and Y variable.
Press Ok.
The regression output is attached below.
The least-squares regression line is:
[tex]\hat y=69.04-0.083\cdot x[/tex]
(b)
The slope of a regression line is the average rate of change in the dependent variable (y) with 1 unit change in the independent variable (x).
Here the slope value is -0.083. This value implies that with 1 minute change in the commute times the Well-Being Index Score falls by 0.083 units.
The intercept of a regression line is the average value of the dependent variable (y) when the independent variable (x) value is 0.
Here, the intercept value is 69.04. This value implies that for a person with commute time 0, their Well-Being Index Score is 69.04.
The correct option is:
D. For every unit increase in commute time, the index score falls by 0.083, on average.
Please y’all Help me
Answer:
Upload a file please
Step-by-step explanation:
Juan earns a 14.9% commission as a salesperson. He sold a video
game for $159.29.
What is the amount of Juan's commission (nearest hundredth)?
Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours. What is the mean absolute deviation for the number of hours students practiced the violin? Round to the nearest tenth.What is the mean absolute deviation for the number of hours students practiced the violin? Round to the nearest tenth.
Answer:
A: 6.4
Step-by-step explanation:
edg2020
6.4 is correct
https://brainly.com/question/22127610
funne
A student taking a Calculus class makes the following statement:
”If f(1) > 0 and f(3) < 0, then there exists a number c, between 1 and 3 such that f(c) = 0.”
Is the statement true? If it’s true, explain why, if it is false, explain why, or give an example that disproves it.
Explanation:
Imagine that f(x) was a road without any gaps. The road can be straight or it can be curved somehow.
Now imagine that a horizontal line is the border between two countries. The country up north is the positive country and the southern country is negative.
f(1) > 0 means we're in the northern country since f(x) is positive here
then f(3) < 0 means we're now in the southern negative country
Somewhere along the road we must have crossed the border at least one time. This must be the case because the road does not have any gaps in it and we cannot teleport. This is what it means to be a continuous function. To draw a continuous curve, you cannot lift your pencil up.
So because f(x) transitions from positive to negative, this means f(x) = 0 at some point at least once. So that's why there exists a c such that f(c) = 0
