Pretty please help me with answering with the right answer? 100 points will be given and brainliest! NO LINKS
Answers
Answer:
last and second answer
Step-by-step explanation:
Related Questions
For the reaction 2Fe + O2 → 2FeO, how many grams of iron oxide are produced from 42.4 mol of iron?
Answers
In the balanced reaction
2 Fe + O₂ → 2 FeO
2 moles of iron (Fe) react with 1 mole of molecular oxygen (O₂) to produce 2 moles of iron oxide (FeO). The ratio of Fe to FeO is 1-to-1, so if one starts with 42.4 mol of Fe, one will end up with the same amount of FeO, 42.4 mol.
Look up the molar mass of Fe and O:
• Fe = 55.845 g/mol
• O = 15.999 g/mol
Then the molar mass of FeO is approximately 71.835 g/mol, and so the mass of 42.4 mol of FeO is
(42.4 mol) × (71.835 g/mol) ≈ 3050 g
How do I calculate (⅔)³×(4/9)⁴ with powers properties?
Answers
Notice that
4/9 = 2²/3² = (2/3)²
so that
(2/3)³ (4/9)⁴ = (2/3)³ ((2/3)²)⁴
… = (2/3)³ (2/3)⁸
… = (2/3)¹¹
find value of each variable and the measure of each label (2x+32) (3x-5)
Answers
Answer:
Step-by-step explanation:
(2x+32) (3x-5)
(2x+3x) (32-5)
(5x*27)
hope this helps
Fill in the blank: 4(3x + ?) = 12x + 16
A) 4, B) 16, C) 12, D) 4x
Answers
Answer:
A) 4
Step-by-step explanation:
4(3x + ?) = 12x + 16
\/
12x + ? = 12x + 16
What times 4 is 16?
4.
So our answer is A) 4
please do this for me
Answers
Answer:
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Step-by-step explanation:
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I need help with this math
Answers
Answer:
D
Step-by-step explanation:
∠1 + ∠2 = 180 {Supplementary angles}
6x + 15 + 3x + 3 = 180
6x + 3x + 15 + 3 = 180
Combine like terms
9x + 18 = 180
Subtract 18 from both sides
9x = 180 - 18
9x = 162
x = 162/9
x = 18
∠2 = 3x +3
= 3*18 + 3
= 54 + 3
∠2 = 57°
Answer:
Answer is option D) 57°
Here is the explanation...
FEAR OF CLOWNS When you see a clown, what do you feel? You feel happy and ready to laugha, right? That's because we know that clowns make jokes, do funny antics and perform tricks to make us laugh. But did you know that there are people who tremble with fear when they see a clown?
These people have an unnatural fear of clowns. To know what this phobia is called:
Directions: Encircle the CORRECT LETTER. Then write the correct letter on the blank below. Determine the equation of a line passing through the following points. Use another sheet of paper for the solution.
Answers
Answer:
Coulrophobia
Step-by-step explanation:
Coulrophobia
hi please help :)????
Answers
there's not information for me to help. what are the choices in the word box?
If the heights of a population of men are approximately Normally distributed, and the middle 99.7% have heights between 5'0" and 7'0", what is the standard deviation of the heights of the population?
a. 1"
b. 12"
c. 6"
d. 4"
e. 3"
Answers
Answer:
4 inches
Step-by-step explanation:
the middle number is 6 and the distance from 99.7 from the middle is 3 standard deviations. 12/3 =4
The value of 99.7% is the closest to the percentage of these heights that is within 3 standard deviations of the mean. The correct option is e.
What is the empirical rule?If your distribution follows a normal distribution, the standard deviation and mean can tell you where the majority of the data are.
It is given that the heights of a large population of ostriches are normally distributed. The percentage of these heights is within 3 standard deviations of the mean.
As we know from the empirical rule:
It is the rule of 68-95-99.7.
From the data given in the question: The height of a large population of ostriches is normally distributed.
X ~ (u, б²)
Normal distribution.
P{u - 3б < X < u + 3б}
From the distribution table:
P{u - 3б < X < u + 3б} = 99.7%
Thus, the value of 99.7% is the closest to the percentage of these heights that is within 3 standard deviations of the mean.
Learn more about the empirical rule here:
brainly.com/question/5440679
#SPJ2
If the mean of the numbers 8, 9, 10, 11, and x is 12, then what is the value of x?
A. 7
B. 12
C. 22
D. 38
Answers
Answer:
C=22
Step-by-step explanation:
8+9+10+11+x divided by 5 gives 12
38+x divide by five gives 12
12×5=60
38+x=60
x=22
brainlist please
Segment AB measures 3 cm.
How long is the image of AB after a dilation with scale factor 1/5
Answers
Answer:
The answer is 3/5cm
Step-by-step explanation:
To find:
3 x 1/5.
3 x 1/5 = 3/5.
Therefore the answer is 3/5cm
Someone help :(( thank youuuu so much if u do
Answers
Answer:
-10
Step-by-step explanation:
The equation would be -8 - (-10) = 2. When subtracting a negative, you are actually just adding a positive. It's like the two negative signs cancel each other out, so it would look more like -8 + 10 = 2. For the answer box, just put -10.
Write a unit rate for each situation . 20$ saved in 4 weeks
Answers
Answer:
so the answer is 5
Step-by-step explanation:
20/4=5
Self explanatory solve porfavor
Answers
2(2/5) divided 2(-1/5)
we do PEMDAS meaning parenthesis first
2(2/5) = 4/5(calculator)
or
2/1x2/5=4/5
now
2/1x-1/5=-2/5
now we do division
4/5/-2/5 we get -2
-2
The set of ordered pairs below represents a relation that is a function.
Which point, when added to the set, would form a relation that is not a function?
A
(0,6)(0,6)(0,6)
B
(4,2)(4,2)(4,2)
C
(−6,8)(-6,8)(−6,8)
D
(−8,10)(-8,10)(−8,10)
Answers
Answer:
I'm confused by the points:
Why three points for each (A, B, C, and D)?: A: (0,6)(0,6)(0,6), etc.
Points A and B [(0,6) and (4,2)] are consistant with a straight line of the form y=-x+6.
Points C and D [(-6,8),(-8,10)]are on the line y=-x+2.
A and B aren't related to C and D.
Step-by-step explanation:
Simplify by collecting like terms
r^+5r+3r^-2r
By the way
^= square
Ill also attach a photo, thankssss!
Answers
Answer:
Step-by-step explanation:
Like terms have same variable with same power.
r² + 5r + 3r² - 2r = r² + 3r² + 5r - 2r
= 4r² + 3r
how much is 40+ 12= and 34=23=34=45=4=
Answers
Answer:
52 and 150?
Step-by-step explanation:
40+12=52
34+23+34+45+4
Simplify: 57+34+49
Simplify: 91+49
Add: 140
5/8-(1/4) to the power of 2
Answers
Answer:
[tex]\frac{9}{16}[/tex]
Step-by-step explanation:
[tex]\frac{5}{8}[/tex] - [tex](\frac{1}{4}) ^{2}[/tex]
= [tex]\frac{5}{8}[/tex] - [tex]\frac{1}{16}[/tex]
= [tex]\frac{10}{16}[/tex] - [tex]\frac{1}{16}[/tex]
= [tex]\frac{9}{16}[/tex]
Does anyone know number 5?
Answers
Answer:
83 is the right answer.
Step-by-step explanation:
Answer:
10th term=83
Step-by-step explanation:
10th=11+(10-1)
=11+72
=83
5 = t + 12
please help me for this
Answers
Answer:
t = -7
Step-by-step explanation:
You have to get t by itself. Just take the 12 and subtract it from both sides. 5-12 on the left and 12-12 on the right. You then end up with -7 = t or t = -7.
a shop only buys bananas with length between 13cm and 20cm. Estimate the fraction of the 80 bananas that the shop buys
Answers
Answer:
[tex]\frac{44}{80}[/tex]
Step-by-step explanation:
We know that the shop only buys Banana with lengths between 13 cm and 20 cm.
So, the fraction of the 80 bananas is actually a ratio between the y-values of each length (13 and 20 cm) and the total 80. First, let's see which y-values belong to each length.
Notice that 13 below to 20 at Cumulative Frequency. And 20 belongs to 62. So, the pairs are (13,20) and (20,62).
[tex]\frac{62-20}{80} =\frac{42}{80}[/tex]
Therefore the shop only buys 42 bananas out of 80, because those are between 13 cm and 20 cm.
Answer:
44/80
Step-by-step explanation:
Help me show my work on 13.
Answers
Answer:
Just show basic multiplication skills that we learned in 3th grade i suppose since your teacher dosen't have a brain to figure this out
the line through (6, 1) and (-3,5) in
slope-intercept form
Answers
Answer: y = -4/9x + 11/3
Step-by-step explanation:
PLS HELP WILL MARK BRAINLIEST, NO FAKE ANSWERS OR WILL BE REPORTED.
Answers
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct choice is ~
A. [tex]-{x}^{2}+x+3[/tex][tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]
The solution is in attachment ~
8.90 x 3.12 will give brainlist
Answers
27.768
Multiply 890 and 312
This equals 277680
We know that there were 4 numbers behind a decimal point
Therefore the last four numbers of 277680 need to be behind a decimal point as well
So you're answer is 27.7680 or 27.768
Determine the value of the expression 2(x - 3) when x = 2.
Answers
Answer:
-2
Step-by-step explanation:
2(x-3), x=2
Since we know what x equals, plug it into the equation
2(2-3)
2(-1)
-2
Answer:
2(2-3)
4-3
1
Step-by-step explanation:
[tex]2(2 - 3) \\ 4 - 3 \\ 1[/tex]
how would you compare the sizes of two balls
Answers
Answer:
You could compare the mass of each ball and volume, You could also find the height of each ball or diamiter. I really hope this isnt satire.
Pls help
bobik: yes, or no
Answers
Answer:
yes
Step-by-step explanation:
Answer:
?? Yes??
Step-by-step explanation:
Solve the math problem
Answers
3 a. positive- 3/2 slope b. negative -3/4
Answer:
Step-by-step explanation:
2a. Slope is positive
2b. Slope is negitive
2c. Slope is zero
3a. Slope is positive 1.
3b. Slope is [tex]\frac{-4}{3}[/tex]
what is [70+(-30)]+[2+(-9)]+[0.3+(-0.1)]
Answers
Answer:
33.2
Step-by-step explanation:
When you add the left side of the equation, you get 33.2 because 70-30 is 40, 40+2 is 42, 42-9 is 33, 33+0.3 is 33.03, 33.3-0.1 is 33.2.
When you add the right side of the equation, you get 33.2, because they are the same problem but on side has brackets.
Hope this helps you.