The number of stars in the observable universe is; 3.033 × 10¹⁴
Since there are about 3 × 1011 stars in our galaxy; we can rewrite that to be;
3033 stars or3033 stars or3.033 × 10³ stars in our galaxy.However, there are about 100 billion galaxies in the observable universe.
We can rewrite that in scientific notation form so that we have;
100 × 10⁹ or 100 × 10⁹ or 10¹¹ galaxies in the observable universe.Ultimately, since our galaxy is one of the 10¹¹ observable galaxies in the universe; the number of stars in the observable universe is;
3.033 × 10³ × 10¹¹By the laws of indices;
3.033 × 10¹⁴.Therefore, the number of stars in the observable universe is; 3.033 × 10¹⁴.
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Harry is bundling magazines to recycle he notices that 4 magazines weigh 3/8 pound in all and that the magazines all weigh the same amount. What is the unit rate for pounds per magazine?
Answer:
5/32 per Magazine
Step-by-step explanation:
pounds per magazine = pounds/magazines = (5/8)/4 = 5/32 pounds per magazine
Answer: 0.156
Step-by-step explanation:
5/32, but as a decimal its 0.1563, so rounded to 0.156.
what is the value of y 4y-3=5y+2 solv for y
Answer:
y = -5
Step-by-step explanation:
4y−3=5y+2
add 3 both sides
4y−3+3=5y+2+3
4y=5y+5
subtract 5y both sides
4y−5y=5y−5y+5
-y=5
divide both side by -1
-y/-1=5/-1
Sebastian a store manager earns 125.20 for eight hours of work How much does he earn per hour A $0.07 B $1,001.60 C $14.65 D$15.65
Answer
The correct answer is D. $ 15.65
Step-by-step explanation:
The table below shows the relationship between the number of cars sold and the amount of money earned by the car salesperson. Is the amount of money earned, in dollars, proportional to the number of cars sold?
Answer:
No, it is not proportional.
Step-by-step explanation:
This can be determined by looking at the first two items in the chart. I have looked at them all to find a certain pattern, but there wasn't any. The salesman earns $250 for one car sale, and he also earns $600 for two car sales, while this seems like it's just adding a $100 bonus, if you look at the third item on the chart adds a $200 bonus. You could be thinking that this is just adding a $100 bonus for how many cars were sold before, but then you move onto the fourth item on the chart. Which would give you $1,300 if the pattern was continued, yet instead the amount listed is $1,076.
What is the area of 10 length and a 3.5 width
Answer:
35
Step-by-step explanation:
The formula for area is length x width, so we multiply 10 x 3.5, which equals 35.
Hope this helps :)
f(x)=-9x- 2 find f(7)
Answer:
x= -1/5
Step-by-step explanation:
1
Add 9x9x to both sides.
x+9x=-2x+9x=−2
2
Simplify x+9xx+9x to 10x10x.
10x=-210x=−2
3
Divide both sides by 1010.
x=-\frac{2}{10}x=−102
4
Simplify \frac{2}{10}102 to \frac{1}{5}51.
x=-\frac{1}{5}x=−51
how do i find the inverse of this?
Answer:
To find the inverse, interchange the variables and solve for y.
f−1(x)=√x+2−8,−√x+2−8
PLS ANSWER FAST PLS Last year, 320 students were members of Pine Hill Middle School clubs. This year, there was a 20% increase in memberships. How many students are members this year?
Answer:
384
Step-by-step explanation:
First find 20% of 320
320 x .2 = 64
So this year, there is an increase of 64 students.
Add that to last year's 320
320 + 64 = 384
y=-3x-1 find slope and y interceapt
Slope = - 3
y-int = - 1
Step-by-step explanation:Understanding slope intercept
y = mx + b
y = Slope(x) + y-intercept
y = -3x - 1
y = (-3)x + (-1)
Slope = - 3
y-int = - 1
Hope this helps,
Solve for c in the proportion.
Answer:
c = 3
Step-by-step explanation:
you have to multiply then divide
9 × 1 = 9
then divide...
9 ÷ 3 = c = 3
there you have it, folks
Can someone please me how to solve [tex]|a|\ \textgreater \ 2[/tex]
Answer:
[tex]|a| \to \: is \: the \: absolute \: value \: of \: a .[/tex]
Step-by-step explanation:
[tex]|a| \to \: is \: the \: absolute \: value \: of \: a \\ if \: a \: is \: - 5 : then : \\ |a| = | - 5| = 5.\\ if \: a \: is \: 5 : then : \\ |a| = | 5| = 5. \\ \\ but \: \\ when \: its \: - |a| \\ if \: a \: is \: - 5 : then : \\ - |a| = - | - 5| = - 1 \times 5 = \boxed{ - 5}.\\ if \: a \: is \: 5 : then : \\ - |a| = - | 5| = - 1 \times 5 = boxed{ - 5}. [/tex]
♨Rage♨
Step-by-step Answer:
Whenever we have a problem like this, we can have 2 solutions (either one can work) because, in absolute equations, we need to find how far away the number is from 0.
So the answer would simply be that a>2 and a<-2
a can be anything greater than 2 or a can be anything less than 2
The image below might help to better understand
Which equation has infinitely many solutions?
12 + 4x = 6x + 10 – 2x
5x + 14 – 4x = 23 + x – 9
x + 9 – 0.8x = 5.2x + 17 – 8
4x – 2x = 20
Answer:
Bbbbbbbbbbbbbbbbbbbbbb
What causes changes of states in matter?
A. thermal energy/heat
B. molecules
C. air
D. melting
Answer:
A. thermal energy/heat.
What number is equivalent to -(-2)? A. -2 b. 0 c. 2 d. 4
Members of Beta Club are selling candy bars to raise money. The club sponsor uses the following equation to calculate the amount of profit, "p" made from selling "n" candy bars. p = 2.50n - 200. How many candy bars must be sold to make a profit of 1500?
Answer:
680 candy bars must be sold
Step-by-step explanation:
2.5 times 680 equals 1700 that minus 200 is 1500.
HELP ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :3
I have to do what the image below says but I don't know how to write it:,)
Answer:
To write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. This is the value of m in the equation. Next, find the coordinates of the y-intercept--this should be of the form (0, b). The y- coordinate is the value of b in the equation.
Plzzzzzzz help ppllz
Answer:
x=25
Step-by-step explanation:
Given
What goes in the middle box to get 1/5? Help!
Answer:
18/18
Step-by-step explanation:
Glad to help!
If a student uses a ruler like this to measure the length of their foot, which choices would be appropriate measurements?
Answer:
Brannock device or a ruler measuring from your heel to the longest toe
Step-by-step explanation:
Answer:
inches. i think. /: l
Step-by-step explanation:
Write the equation of the line with the slope of -6 passing through the point ( − 8 , 0 ).
Answer:
y=-6x+48
Step-by-step explanation:
can you help my sister once again theres 12 questions and they are due today and i want her to pass it thanks
Answer:
50,000 in scientific notation is 5 x 10^4
Step-by-step explanation:
10^4 = 10,000 x 5 = 50,000
Please help!!! Tony wants to build a fence around his rectangular garden that has
dimensions 20 ft by 35 ft. His fence posts need to be placed 5 ft apart.
How many posts will Tony need to buy?
I
Answer:
22 posts
Step-by-step explanation:
on the side of 20 feet you have 5 fence posts each in including one on each of the corners. On the 35 feet side you would have 8 including the corners, but since the corner posts are done its 6 on each 35 feet side. So you get 5+5+6+6=22
Question 2 What is the slope and y intercept of 4x + 6y = -20?
Answer:
Slope is -2/3. The y - intercept is -10/3.
Step-by-step explanation:
Simplify the equation by using division property of equality.
Find the value of x and y given that p//q. Type answers alphabetically, and separate by a comma and a space
Answer:
39
Step-by-step explanation:
Find and interpret the slope. The number of cubic feet of watery In a reservoir x hours after the water starts flowing into the reservoir Is a linear function. The points (40,2,000) and (60, 3,000) are on the line of the function. The slope ls which means that the amount of water in the reservoir is increasing at a rate of cubic feet each hour.
Answer:
1/50 or 20/1000(same thing but simplified)
Step-by-step explanation:
For question A, I figured out one of the expressions is n^2+2, but I need two, and I have no idea what the second one could be.
For B, I figured out it’s a Quadratic function, but I need help explaining why.
For C, I have nothing.
dai is comparing how many trading cards he has with his friend maura. initially they find that dai has four more cards than twice the number maura has
Answer:
B) [tex]2n+4[/tex]
Step-by-step explanation:
The question states that Dai has 4 more cards than twice the number of cards Maura has.
"more" - add
"twice" - multiply by 2
Let n be equal to the number of cards that Maura has.
Let D be equal to the number of cards that Dai has.
When we translate this into an equation, we would get something that looks like...
[tex]D=2n+4[/tex]
Since Dai has four more cards than twice the number of cards Maura has, 2 times the number of cards Maura has plus four is equal to the number of cards Dai has. Hopefully this is easier to understand written like an equation!
Therefore, the expression would be [tex]2n+4[/tex].
I hope this helps!
1/2 (2r + 4) - 1/4 (16 - 8)
Answer:
R
Step-by-step explanation:
1/2(2r+4)-1/4(16-8)
r+2 - 1/4(8)
r+2-2
r
Use the diagram to find the value of a. The parallel lines are marked
Answer:
Where is the diagram
Step-by-step explanation:
Thank you for the extra points
Write the following equation in standard form.
y=-3/7x-3
[tex]y = - \frac{3}{7}x - 3 \\ [/tex]
Multiply sides by 7
[tex]7y = - 3x - 21[/tex]
Plus sides 3x
[tex]3x + 7y = 3x - 3x - 21[/tex]
[tex]3x + 7y = - 21[/tex]
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And we're done.....♥️♥️♥️♥️♥️