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uranmaximum [27]
3 years ago
14

WILL MARK BRAINLIEST!!!

Mathematics
2 answers:
Reika [66]3 years ago
8 0

Answer:

Because the airline allows each suitcase to hold up to 50 pounds, and it doesn't force them to hold exactly 50 pounds

kkurt [141]3 years ago
8 0

Answer:

Step-by-step explanation:

b/c she doesn't have to have exactly 50 pounds,  she can have any were from 0 to 50 pounds  in each suit case.   They are not going to charge her more, if she only brings 49 pounds :DDDD  It's the same charge up to and including 50 pounds.  If she brings 51 pounds then maybe she would get charged more :P    But not for 50 pounds or less .  :)  Make sense?

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Which operation should be performed first for calculations involving more than one arithmetic operation?
liq [111]
Operations are performed according to the Order of Operations. Sometimes the mnemonic PEMDAS or BIDMAS is used to remind you what the order is.

P/B - parentheses/brackets. The content of these is evaluated first.

E/I - exponents/indices. Exponentiation is done first, right to left: a^b^c = a^(b^c).

MD/DM - multiplication and division are done in order of appearance, left to right. Each has equal priority, neither is done before the other unless it appears in the expression first. a/bc = (a/b)c. ab/c = (ab)/c

AS - addition and subtraction are done in order of appearance, left to right. Each has equal priority.
_____
When functions are involved (sin( ), log( ), sqrt( ), for example), their arguments are evaluated according to the order of operations, then the function is evaluated, then the remainder of the operations are performed. For example, sin(a)^2 = (sin(a))^2. Sometimes, this is written sin^2(a).

When functions are written without parentheses around their arguments, it must be assumed that the function only applies to the first entity following the function name. log ab+c/d = (log(a)*b)+(c/d), for example, or √3x = (√3)x.
6 0
3 years ago
An elevator goes up 7 floors and then down 4 floors. What integer represents the change in the floor level?
Nat2105 [25]
The answer is three because...

7-4=3
3 0
3 years ago
Read 2 more answers
Find the percent of each number 6% of 38
blondinia [14]
2.28 is the answer I got

first I divided 6 by 100

then multiplied that by 38 and that's how I got 2.28
3 0
3 years ago
Find the inverse of <br> f(x) = -2(x+3)^2 -1
Keith_Richards [23]

Answer:

Step-by-step explanation:

Note that the graph of this function is that of a parabola that opens down and has its vertex at (-3, -1).  If we draw a horiz. line thru this graph, it will intersect the graph in two places below this vertex.  Thus, this graph fails the horiz. line test and the function has no inverse.

However, if we restrict x as follows:  [-3, ∞)

the graph passes the horiz. line test, and the function has an inverse on this restricted domain.

To find it, do the following:

1) replace "f(x)" with "y":  y = -2(x+3)^2 -1

2) Interchange x and y:  x = -2(y+3)² - 1

3) Solve this result for y:  2(y + 3)² = -x -1 ↔ (y + 3)² = (1/2)(-x - 1)

    ↔   √(y + 3)² = √(1/2)(-x - 1)

     ↔ y + 3 = (1/√2) · √(-[x + 1])

     ↔ y = -3 + (1/√2) · √(-[x + 1])

Note that the domain of the √ function is [0, ∞), so -x -1 must be ≥ 0.

Simplifying:   -x -1 must be ≥ 0  ↔  -x ≥ 1, or x ≤ 1.

This inverse function is defined ONLY on x ≤ 1  same as (-∞, 1].

4) As a last step, replace this "y" with:

     -1

   f     (x)

7 0
3 years ago
David is standing on the sixth rung of a ladder while painting his house. Which expressions represent a change in David’s positi
svetoff [14.1K]
The answer is A and B. Imagine you numbered each rung.

10
9
82️⃣
71️⃣
6‍♂️
51️⃣
42️⃣
3
2
1

David is on the 6th rung. If he goes up 2 you do 6+2=8
If he goes down 2 you do 6-2=4
3 0
3 years ago
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