(6x2 + 6x + 9) + (x2 + 2x)
Answers
Answer:
7x^2+8x+9
Step-by-step explanation:
Answer:
i hope this helps
im like 85% sure this is right
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London Heathrow airport see on average 191,200 passengers a day how many passengers is this per minute. I need to show the steps to my answer
Find the value of 24/m when m= -8
Three values on a number line are labeled F, G, and H . Which number line correctly shows the values of F, G, and H?
Answers
Answers
so
make bottom 1
3/4 times 4/3=12/12=1 so
times wole thing by
result
basically
a/b divided by c/d=a/b times d/c, invert and multiply
Simplify the expressions by combining like terms?
Answers
-r + 6 + 8r - 14
Add up all the 'r's: -r + 8r = 7r
Add up all of the
just-plain-numbers: + 6 - 14 = - 8
The whole messy complicated expression is the same as 7r - 8 .
Answers
To Euclid, a postulate is something that is so obvious it may be accepted without proof.
A. A straightedge and compass can be used to create any figure.
That's not Euclid, that's just goofy.
B. A straight line segment can be drawn between any two points.
That's Euclid's first postulate.
C. Any straight line segment can be extended indefinitely.
That's Euclid's second postulate.
D. The angles of a triangle always add up to 180.
That's true, but a theorem not a postulate. Euclid and the Greeks didn't really use degree angle measurements like we do. They didn't really trust them, I think justifiably. Euclid called 180 degrees "two right angles."
Answer: B C
#10. Maddy had twice as many stamps as Simon. After Maddy sold 60 stamps, Sinom had twice as many stamps as Maddy. How many more stamps did Maddy have than Simon in the beginning?
Answers
Answer:
8. $114
10. 60 stamps
Step-by-step explanation:
8.
Let Dylan have d, Mike have m, and Jeremy have j
3 of them have 171, so we can write:
1.
Mike has twice as Dylan, so we can write:
2. m = 2d
Jeremy had three times as Mike, so:
3. j = 3m
We can write equation 3 as m = j/3
Also, if we put this into equation 2, we have:
j/3=2d
d=j/6
Now we have d and m in terms of j. We put it into equation 1 and solve for j:
Jaime has $114
10.
amount of stamps Maddy has is m and amount Simon has is s
Maddy had twice as many stamps as Simon:
m = 2s
Also
After Maddy sold 60 stamps, Sinom had twice as many stamps as Maddy:
s+60=2(m-60)
We put the first equation in the second and solve for s:
s+60=2(m-60)
s+60=2(2s-60)
s+60=4s-120
180=3s
s=60
THus, m = 2(60) = 120
So maddy had 120 - 60 = 60 more stamps than Simon
The mean is -1
Answers
2. Find the absolute value of differences between each data an the mean:
1) |-7 -(-1)| = |-7 + 1| = |-6| = 6
2) |-2-(-1)| = |-2+1| = |-1| = 1
3) |1 -(-1)| = |1+1| = |2| = 2
4) |4 -(-1)| = |4+1|=|5|=5
3) Calculate the mean of those differences:
( 6 + 1 + 2 + 5) / 4 = 14/4 = 3.5