Answer:
Mass of proton (m) = 1.67×10^(-27) kg
Step-by-step explanation:
Mass of proton (m) = 1.67×10^(-27) kg.
Since, 1 kg = 1000 g
Therefore, m = 1.67x10^(-27+3) g = 1.67x10^(-24) g
Let N no. of protons be present in 1 g. Hence, Nxm = 1 g
So, N = 1 / m = 1 / (1.67x10^(-24))
N = 6x10^(23) (approx.)
Exact mass of proton gives N = 6.022 x 10^(23).
That is a very special no. In fact, it is the Avogadro’s constant used frequently in chemistry. Avogadro’s no. is actually the number of atoms in exactly 12 g of C-12 isotope of carbon. Since, the atomic mass of C-12 is 12 u (unified mass), then again the no. of carbon atoms turn out to be N.
The midpoint of gh is m(4,-3). One endpoint is G(-2,2). Find the coordinates of endpoint H
Answer:
Step-by-step explanation:
(-2 + x)/2= 4
-2 + x = 8
x = 10
(2 + y)/2 = -3
2 + y = -6
y = -8
(10, -8) for endpoint H
1.Solve : 3(5 + 7) - 4(8 + 4) = * 2.solve:-7 x -10 ill give you an free robux account if you get them correct
Answer:
1) -12, 2) 70
Step-by-step explanation:
Hope this helps :)
Answer:
oh someone got it already :(((( ugh
Step-by-step explanation:
ro bux
I really really need help with this question!!! I do not know how to write it and everywhere else I've looked for help with this tries to make me pay to get help and an understanding. Will someone please help me with this???? I will give you "brainliest." I just REALLY need help with this one question. Someone please help me!!!
Answer: for part c the gas would not remain a liquid.
Step-by-step explanation: Because as stated, the tempature dropped to -49 degrees farhenheit, and for instance, oxygen, a gas, becomes a liquid if you cool it down to - 297 degrees Fahrenheit (really, REALLY cold) and if you cool it down further to -362 degrees Fahrenheit it becomes a solid, so therefore it definetly couldnt stay a liquid if the temp raised so high. it would seconense back.
i do not know if this is correct but i did try so i am deeply sorry if this fails.
What is the slope of the data from the table?
х
11
15
19
у
2
10
18
Answer:
first it's adding 4 then it starts adding 8
Step-by-step explanation:
Answer:
If your data represents the following X, Y coordinates (11, 2), (15, 10), and (19, 18) then the slope can be calculate
X = 11 15 19
Y = 2 10 18
m = (y2 -y1)/(x2 - x1)
m = (10 - 2)/(15 - 11)
M = 8/4 = 2
I hope you find this useful.
If your data represents the following X, Y coordinates (11, 2), (15, 10), and (19, 18) then the slope can be calculate
X = 11 15 19
Y = 2 10 18
m = (y2 -y1)/(x2 - x1)
m = (10 - 2)/(15 - 11)
M = 8/4 = 2
I hope you find this useful.
Step-by-step explanation:
What is the dependent variable in the graph below? a. month of the year b. days of snow fall c. time d. amount of snowfall PICTURE BELOW!
Answer:
Days of snowfall
Step-by-step explanation:
the y- axis
What is the answer to (10^4)(5^2)^3 divided by (10^3)(5^3)
Answer:
19531250
By divided it
The sum of 3 and x is less than 7.
What number sentence represents the statement?
O A. 3x<7
OB. 3+x<7
O C. 3x>7
OD. 3+x>7
Answer: The answer is B
Step-by-step explanation: Hope this helps xd
) consider the initial value problem y′−5y=15t+3et,y(0)=y0 y′−5y=15t+3et,y(0)=y0 (a) solve the initial value problem. (enter y0 for y0y0). y(t)y(t)= equation editorequation editor (b) determine the value of y0y0 that separates solutions that grow positively as t→[infinity]t→[infinity] from those that grow negatively.
Answer:
a)value attached below
b)Yo = [tex]\frac{-27}{20}[/tex]
Step-by-step explanation:
A) solving initial value problem
[tex]y' - 5y = 15t + 3e^t[/tex]
y(0) = yo
hence the solution of the initial value problem : y(t)
Y(t) =
Attached below is the detailed solution
B) Yo = [tex]\frac{-27}{20}[/tex] separates the solutions as
t →∞
this is because when y(t) < [tex]\frac{-27}{20} y(t) tends to inifiniy[/tex]
y(t) > [tex]\frac{-27}{20} y(t) tends to inifinity[/tex]
select the correct answer. what is the sum of -6 4/5 and 6 4/5? A. 12 4/5. B. 29/5 C. 0 D. -12 4/5
Answer:
C.
Step-by-step explanation:
-6 4/5 and 64/5 are opposites or a zero pair so when you add them you get zero.
Joseph drove to Carly's house for dinner. He was away from his house for 2 hours. He spent 50 minutes at Carly's house. Driving to and from Carly's house he drove at a speed of 45mph. How far away from Carly does Joseph live?
Answer:
I'd say about 30 minutes away
Step-by-step explanation:
Please solve need help!
Answer:
ST 45
Step-by-step explanation:
9x=4x+25
5x=25
x= 5
plug back in 9(5)
Ariana has atoy car collection. She keeps 14 of the toy cars on her wall, which is 35% of her entire collection. What is the total number of toy cars in Ariana's collection?
Answer:
40 cars
Step-by-step explanation:
The total percentage of Ariana's car collection should be = 100%
35% of the collection = 14
1 percent = 14/35
1 percent is therefore 0.4
To get the total number of cars in Ariana's collection, we multiply 100 by 0.4
= 100 x 0.4 = 40
Therefore the total number of cars in her collection is equal to 40 and this is the answer to the question.
Another way to solve this is by cross multiplication
35% = 14
100% = ?
When we cross multiply we have:
(100x14)/35
= 1400/35
= 40
Thank you!
What is 10 to the -6th powert 10^-6 a. 0.000001 b. 100000 c. 1000000 d. 0.0000001 Easy points for you guys
Answer:
The answer is D
Step-by-step explanation:
When the exponent is negative then you go in to decimals
Answer:
since its a negative number you need to to go to the decimals> therefore the answer would be (D)
Shellys old living room had a length that was twice its width. When she moved, her new living room was 2 feet longer and 4 feet wider that her old one. If w represents the width of her old living room write the expression used to represent the difference in the area of her old living room and her new living room.
Answer:
10w+6 is the difference between the two areas
Step-by-step explanation:
for the old room:
l=2w
wich mean
Area_old=l*w=2w*w=2w²
for the new room:
L=l+2 since l=2w => L=2w+2
W=w+4
so
Area_new=L*W=(w+4)*(2w+2)= 2w² +10w+6
the difference is :
Area_new - Area_old= 10w+6
NEED ASAP 100 POINTS!!!!!!!!!
Answer:
3) a. f(-4) = 2
b. f(0) = 0
c. f(3) = -1.5
d. f(-5) = 0
e. x = -4
f. x= 0
4) a. f(-1) = 1
b. f(3) = -1
c. 1
d. -5
5) f(6) = 2
f(2) = 4
f(0) = 7
f(5) = 1.5
x=4
Answer:
see below
answers as required.
3)
a. [tex]f[/tex](-4) = 2
b. [tex]f[/tex](0) = 0
c. [tex]f[/tex](3) = -1.5
d. [tex]f[/tex](-5) = 0
e. x = -4
f. x= 0
4)
a. [tex]f[/tex](-1) = 1
b. [tex]f[/tex](3) = -1
c. 1
d. -5
5)
[tex]f[/tex](6) = 2
[tex]f[/tex]f(2) = 4
[tex]f[/tex](0) = 7
(5) = 1.5
x=4
Solve for y.
8+4y= -8
Answer:
-4
Step-by-step explanation:
8+4y= -8
4y= -8 -8
4y= -16
divide both sides by the coeffient of the variable. in this case divide both sides by 4
y=-4
Answer:
y = -4
Step-by-step explanation:
8+4y= -8
4y = -8 -8
4y = -16
y = (-16) ÷ 4
y = -4
the price of a share of stock for a company XYZ at the beginning of the week was $24.75. over the next 5 days, the share of the stock gained $2.50 on Monday lost $3.25 on Tuesday lost $0.75. on Wed, gained $1.25 on Thursday, and gained 4.75 on Friday
Answer:
$29.25
Step-by-step explanation:
The Price of the share of stock at the end of Friday would be; $29.25. the correct option is B. $29.25.
What is the unitary method?The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
Let the integers loss is represented by negative integers whereas profit is represented by positive numbers.
Given, Beginning price = $24.75
Over the next 5 days,
On Monday, gain of $2.50 represented by; + $2.50.
On Tuesday, loss of $3.25 represented by; - $3.25 .
On Wednesday, loss of $0.75 represented by; - $0.75.
On Thursday, gain of $1.25 represented by ;+ $1.25.
On Friday, gain of $4.75 represented by; + $4.75.
The Price of the share of stock at the end of Friday would be;
= (Beginning price)+ ( + $2.50 - $3.25- $0.75+ $1.25+ $4.75)
= $( 24.75 + 2.50 -3.25 -0.75 +1.25 +4.75)
= $29.25
Hence, The Price of the share of stock at the end of Friday would be; $29.25. the correct option is B. $29.25.
Learn more about the unitary method;
https://brainly.com/question/23423168
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what’s the answer choice?
Answer:
0.3 or 3/10
Step-by-step explanation:
a/b = -1/4 / -5/6
=> -1/4 * -6/5
=> 6/20
=> 3/10 in simplest form.
Hope this helps, Please put me as brainliest!!
Carlos is buying drinks to bring to a study group. The table shows some combinations of the drinks he might buy. If Carlos buys 7 bottles of water, how many bottles of lemonade will he buy?
I’m stuck on this I need help
The slope of the red line = 2
The y-intercept of the red line = 3
The x-intercept of the red line = -1.5
Alg 1 Wee
Consider the expression 5 (y-7). Which of the following correctly expresses this expression?
Answer:
5y-35
Step-by-step explanation:
since we don't know what y is you have to multiply y and 7 by 5 and you'd get 5y and 35 and then just add the subtraction and bam there's your answer
(solve) i dont get it
The two triangles are similar. There are two possible values of x. Work out each of these values. State both assumptions you make in your working. You must state which two triangles you are assuming to be similar.
Answer:
ΔABE ~ ΔACD, x = 2ΔABE ~ ΔADC, x = 17Step-by-step explanation:
ΔABE ~ ΔACD
AC/AB = AD/AE
(10+x)/10 = (15+3)/15
1 +x/10 = 1 +0.2 . . . expand each ratio
x = 10(0.2) . . . . . . . subtract 1 and multiply by 10
x = 2
__
ΔABE ~ ΔADC
AC/AE = AD/AB
(10+x)/15 = (15+3)/10
10 +x = 27 . . . . . . . . multiply by 15
x = 17 . . . . . . . . . . . . subtract 10
_____
Additional comment
The triangles can be declared similar in 6 ways, but it does no good to match a marked side with an unmarked side. Hence, only two of the possible similarity statements will result in a solution for x.
Answer:
This will give you 5/5
x = 17
x=2
Assuming triangle ABE is similar to ACD
Assuming traingle ABE is similar to ADC
Step-by-step explanation:
18/10 = 1.8 (S.F)
15 x 1.8 = 27
27-10 = 17
x = 17
15+3=18
18/15= 1.2 (S.F)
10x1.2= 12
12-10=2
x=2
Assuming triangle ABE is similar to ACD
Assuming triangle ABE is similar to ADC
Find the midpoint of the segment with the given endpoints.
(8,7) and (-6,9)
1. Are there more inches in a mile or second in a day?
1day-24hours-60min-0.0167seconds
miles to inches = 63360
Can anyone help me with this? (I took a picture of it too)
11. STEM To convert a temperature in degrees Celsius to degrees
Fahrenheit, multiply the Celsius temperature by 9/5 and then add 32°. Is a
temperature in degrees Celsius proportional to its equivalent temperature in
degrees Fahrenheit?
Degrees Celsius
0
10
20
30
Degrees Fahrenheit
132
Answer:
no
Step-by-step explanation:
Whenever a linear equation is something other than
y = kx
the relation is not proportional.
__
Here, you have ...
y = (9/5)x +32
The added constant ensures the relation is not proportional.
What is slope intercept form?
O y = mx + b
OAX + By = C
O a^2 + b^2 = c^2
m is the slope
Answer:
y = mx + b
m is the slope and b is the y intercept, if I remember correctly
hope this helps :)
round -6(5-7s)=20 pls help
Answer:
Step-by-step explanation:
-6(5-7s) = 20
-30 + 35s = 20
Add 30 both sides
35s = 50
Divide by 35 both sides
S=1.4
f(x) = 2x and h(x) = 2x^2;Find f • h(3)
Answer:
36
Step-by-step explanation:
start by finding x for h(x)
2(3)^2
18
f(x) = 2(18)
36
The combined height of the world's three tallest buildings is 6,360 feet. The building in Dubai is 745 feet taller than
the building in Makkah. Taipei's building is 301 feet shorter than Makkah's.
The equation (x + 745) + x + (x - 301) = 6,360 represents the scenario.
What can be determined from the given information? Check all that apply.
x represents the height of the building in Dubai.
The expression (x - 301) represents the height of the building in Taipei.
The building in Makkah is 1,972 feet tall.
The height of Dubai's building is 1,227 feet tall.
The height of Taipei's building is 1,671 feet tall.
Answer:
b , c , d
Step-by-step explanation:
Answer:
The answer is B, C, and E.
Hope this helps!!! Love you!!
Step-by-step explanation: