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exis [7]
3 years ago
13

Directions: Simplify by combining like terms in each of the following expressions.

Mathematics
1 answer:
aalyn [17]3 years ago
3 0

Answer:

13. 16+16-16+16x = 16+16x

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When we multiply and divide we ____ the negative numbers (integers)​
mafiozo [28]

Answer:

I think its supliment but I took this class a long time ago so don't quote me on that

Step-by-step explanation:

7 0
3 years ago
Which of the following fractions describe the portion of the math books that weigh 2 1/8 pounds? Select all that apply.​
VARVARA [1.3K]

Answer:

2 /10

Step-by-step explanation:

The portion of the book that weight 2 1/8

Total number of books = 10

Number of books that weight 2 1/8 = 2

Fraction of book that weigh 2 1/8 = number of books that weigh 2 1/8 / total number of books

Fraction = 2 / 10

3 0
3 years ago
Brooke and Lamont ran a half marathon. Brooke finished in 1 hour 55
harkovskaia [24]

Answer:

D

Step-by-step explanation:

1:55 is lower that 125 minutes

7 0
3 years ago
The graphs shown are of the form y = ax2. Which graph has the smallest value for a?
julia-pushkina [17]
y= x^{2} is a parabola (looks like the letter U).

The letter a represents the coefficient of x^{2} and it controls two things (1) how wide or narrow the parabola is and (2) whether it is concave up (like a U) or concave down (like an up-side-down).

The absolute value of a (the number without the sign) controls how wide or narrow it is. If the absolute value is a fraction less than 1 the graph gets wider. The smaller the absolute value of the fraction the wider the graph gets.

If the absolute value of a is greater than 1 the graph gets narrower (it gets skinnier). The bigger the absolute value the narrower the graph.

So, if all the graphs look like a U (concave up) then the one with the smallest a is the one that is the widest.

The a also controls whether the graph is concave up or concave down. If a is negative

If a is negative the graph is concave down so any graph that is concave down has a smaller value of a than any graph that is concave up. However, if the graph is concave down the one with the smallest a would be the most narrow one.

So to find the one with the smallest a...
If they are all concave up (like a U) pick the widest one
and
If they are not all concave up pick the narrowest one that is concave down (looks like an upside down U)
3 0
3 years ago
Marilyn lives 3.5 block from the library. She leaves the library and walks 3.5
fenix001 [56]

Answer:

3.5 blocks.

Step-by-step explanation:

After walking 3.5 blocks back she is back at her starting point.

7 0
3 years ago
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