I BET NOBODY KNOWS HOW TO DO THIS What is the mass in grams of a single calcium atom? (hint: start with 1 atom Ca and do 2 dimensional analysis steps)
Format for the answer is ___ x 10 exponent
_ x 10 _
Give value to four significant figures.
Answer:
very specific...sus...yea no one knows
Step-by-step explanation:
In order to determine the mass of one atom of an element, you must determine its molar mass, which is its atomic weight on the periodic table in g/mol, and you need to know the relationship between moles and the number of atoms: 1 mol of atoms = 6.022×1023 atoms . Then divide the molar mass by 6.022×1023 atoms/mol .
i need help with this
Answer:
a- 2 8/27
Step-by-step explanation:
Answer:
[tex]2\frac{8}{27}[/tex]
Step-by-step explanation:
Jenna won 77 toys playing basketball at her school's game night. Later, she gave four to each of her friends. She only has 9 remaining. How many friends does she have?
Find the value of x.
Help ASAP will give brainliest
Answer:
a . 45
Step-by-step explanation:
you can see the 20 is that small so you need to put 1/2 more of the 20 degrees angle to get the equation
6) Burritos are $4 each and Tacos are $2 each. You have no more than $20 to spend. Write an
inequality to model this.
HELP A KID IN NEED
IM JUST A CHILD TRYING NOT TO FAIL MATH
Simplify the expression. 3z+14+5z-9
IM GIVING ALOT OF POINTS PLEASE HELP ME
please
lol sorry I'm kind of desperate
HELPPPP
Answer:
8z+5
Step-by-step explanation:
Let's split the expression into two terms- z and... not z :)
3z+5z=8z
Why? it's just 3+5 with z tacked on the end
14-9=5
simple math :)
put it together to get
8z+5
all done!
lmk if you have any more questions
what is 3(x - 4)= 12x
Answer:
x = 4/5
Step-by-step explanation:
3(x-4)=12x
3x-12=12x
3x+12x-12=12x-12x
15x-12=0
15x-12+12=0+12
15x=12
15x/15=12/15
x = 4/5
hope it's helpful ❤❤❤❤
THANK YOU.
Its not a quiz/test its homework thats due in a bit :)
Just to clear any misunderstandings that might arise
Answer:
it would be 53
Step-by-step explanation:
Here u go Hanifa :D <----------
Answer:
B. 2200 ft²Step-by-step explanation:
To find the area, calculate two parts and add up
The triangle section has sides:
40 ft and 50 - 30 = 20 ftThe area:
1/2*20*40 = 400 ft²The rectangle section has sides:
30 ft and 20 + 40 = 60 ftThe area:
30*60 = 1800 ft²Total area:
400 + 1800 = 2200 ft²Correct option is B
boys to girls in the ratio 4:5 if there are 95 girls how many boys are there
Step-by-step explanation:
4/9× 95answer is 42remainder 22. Solve x - 19 <81. Then graph the solution.
Answer:
x<100
Step-by-step explanation:
The given equation is :
x-19<81
Adding 19 to both sides of the equation.
x-19+19<81+19
x<100
It means the solution of the given equation is less than 100. Hence, the attached figure shows the graph for the given equation.
Solve C=AB+D for B
• C-D =B
—————-
A
•AC-D =B
•C - D=B
——
A
•C+D =B
———
A
(If you don’t understand what the options are look at the photo pls <3)
Step-by-step explanation:
I think u want this... hope u have great day.............
Answer:
I have made it in above picture
it is option A
Select the correct answer.
Simplify the expression
Answer: A
Step-by-step explanation:
Since multiplication is the only operation under the radical, you can apply the root to each term. Im not sure if I worded that correctly, but ill hopefully explain correctly.
First we need to take the cubed root of 648. This number doesn't have a perfect root, but it can be simplified. 648 is the same as 216*3, and 216 has a perfect cubed root of 6. So we can bring the 6 outside of the radical
[tex]3x*6\sqrt[3]{3x^4y^8}=18x\sqrt[3]{3x^4y^8}[/tex]
The next step is simplifying the variables, which is the easiest part. Just split them up into multiples of 3, again poor explanation but Ill show what I mean.
[tex]18x\sqrt[3]{3x^3xy^3y^3y^2}[/tex]
The cubed root and the cubed power will cancel and can be brought outside the radical[tex]18x*xy^2\sqrt[3]{2xy^2} =18x^2y^2\sqrt[3]{3xy^2}[/tex]
Which of the following is equivalent to (4x?) ?
4 TIMES I THINK
#brainliestbunch
If the number of bacteria in a colony doubles every 18 minutes and there is currently a population of 500 bacteria, what will the population be 72 minutes from now?
Answer: 8000 plz mark brainliest
Step-by-step explanation: 72/18 =4 (therefore it doubles 4 times as shown below)
500*2=1000
1000*2=2000
2000*2=4000
4000*2=8000
Find the missing Length. The triangle in each pair are similar
Answer:
45
Step-by-step explanation:
This might not work every time but it does this time.
99(25/55)=45
45
Help and explain it to a dummy “just here for points answers will be reported” rlly I need the answer and how u got it
please do all of these :)
8.) The cross country team ran 1.428 hours yesterday and 1.24 hours today. Each member of the team ran 3.3 miles every hour. How many miles did each member run yesterday?
9514 1404 393
Answer:
4.7124 mi
Step-by-step explanation:
(3.3 mi/h) · (1.428 h) = 4.7124 mi
Each team member ran 4.7124 miles yesterday.
NEED HELP ASAP DEW TONIGHT
Answer:
with what? do you need help with?
Right now, Molly is twice as old as Nancy. Zander is 6 years younger than Molly.
Which expression represents Molly’s current age in terms of Nancy’s?
Which expression represents Molly’s current age in terms of Zander’s?
Nancy is currently 10 years old, and Zander is 14. How old is Molly?
Answer:
1. 2n
2. z+6
3. 20 years old
Step-by-step explanation:
Just to simplify, did the instruction on edge
The value of 3 expo3 + 4 expo2
Answer:
43
Step-by-step explanation:
[tex]3^{3}[/tex]+[tex]4^{2}[/tex]=
Solve:
[tex]3^{3}[/tex]= 3*3*3= 9*3= 27
[tex]4^{2}[/tex]= 4*4= 16
Then add them together:
27+16= 43
Hope this helps!
A school marching band has 200 members.There are 50 band members who play brass instruments.What percent of the band members play brass instruments?
Answer:
25% Or
1/4 Or
0.25
Step-by-step explanation:
Solve:
200 divided by 50 is 4
Check your math:
50*4= 200
Your only counting a single piece of this whole. This can be written in 3 ways, 25%, 1/4, or 0.25.
Hope this helps!
Answer:50%
Step-by-step explanation: total no. of band players=200
no. of brass players=50
% of brass players=50/200 x 100
Solve the equation 3 (p-1) = 2p – 11.
Answer:
p = - 8
Step-by-step explanation:
3 (p - 1) = 2p - 11
3p - 3 = 2p - 11
3p - 2p = -11 + 3
p = -8
Answer:
p = - 8
Step-by-step explanation:
Given
3(p - 1) = 2p - 11 ← distribute parenthesis on left side
3p - 3 = 2p - 11 ( subtract 2p from both sides )
p - 3 = - 11 ( add 3 to both sides )
p = - 8
To get rid of a negative exponent, move the part with the negative exponent to the other side of the_________(blank)
Answer:
negative chargedhhdhd
1) Walter opened a bank account with $0. He deposits $200 in the bank
each month. Write an expression that represents how much money
Walter has deposited after some number of months (m). Which
student below is correct? What mistake do the other students make?
Student A
200*10
Student B
2200
Student C
200m
Student D
m = 200
Answer:
Student C is correct.
Students A and B do not account for the variable in the equation. Student A assumes that it has already been 10 months when it has not been stated in the question. Student B has come to the conclusion that it has been 11 months. Neither have an equation to show for it. Student D is incorrect because the variable "m" equals the number of months, and the number of months would not equal the amount of money Walter would be receiving in total. Student C is correct because the variable "m", or months, is being multiplied by 200, or the amount of money.
For example, if 5 months were to pass, then you would receive 1000 dollars, because 5×200 is 1000. This would hold up, as in the original problem, you receive 200 dollars per month. another example is if you replace "m" with 0, then it will show that in 0 months, you will have 0 dollars, and it is stated at the beginning of the problem that Walter's bank account starts at $0.
My point exactly in algebra.
A savings account earns 4.5% simple interest per year. If $650 is deposited and no withdrawals are made during one year, how much interest will be earned after one year?
Answer:
$29.25
Step-by-step explanation:
The formula for amount of interest is the P*R*T. Because the principal is $650 dollars, and the rate is 4.5% for 1 year, the formula so far is 650*0.045*T. The interest is per annum or annual, so the time has to be in terms of years, which in this case is 1 year. This would give you 650*0.045. The answer for that is simply $29.25.
The track club runs the 50-yard dash. How many inches do they run?
Answer:
1800in
Step-by-step explanation:
3ft=1yd
3x50=150ft
12in=1ft
12x150=1800in
Answer:
Step-by-step explanation:
1 yard = 36 inches
50 yards = 36 x 50 = 1800 inches
Please someone help answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!
Answer:
z = 44
Step-by-step explanation:
180 - (44+52) = 180 - 96 = 84º
180 - 84 = 96º
180 - (96 + 40) = z
180 - 136 = z
z = 44