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olchik [2.2K]
3 years ago
11

How do i do these fractions by 1/2?

Mathematics
1 answer:
Svetlanka [38]3 years ago
4 0
I need to see the directions
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What is the value of (2x^2-5x+4)if x =7
Troyanec [42]
<span>We have to use PEMDAS for this expression.

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

</span>(2x^2 - 5x + 4)                    Original Mathematical Expression

[2(7)^2 - 5(7) + 4]                 Plugging the value of x, 7 into expression.

There are parentheses, so that means we have to work in them.

There are exponents, so we have to do those first.

[2(49) - 5(7) +4]                    Exponents.

There is multiplication, that we can do, so we do that left to right.

[98 - 35 + 4]                         Multiplication.

There is no division.

There is addition and subtraction, so we do those left to right.

[63 + 4]                                Subtraction.

67                                        Addition.

Final Answer: 67

6 0
3 years ago
Read 2 more answers
During a field trip, 60 students are put into equal-sized groups. Describe two ways to interpret 60 ÷ 5 in this problem *
sergeinik [125]

Answer:

    x=12 groups

This will give 5 Students each in 12 different equally sized groups

    x'=5groups

This also shows that students can grouped in equal groups of 12 in 5 places

Step-by-step explanation:

From the question we are told that

60 children in equal sized groups

Generally interpreting 60\div 5 can be mathematically represented as

a)

    x=\frac{60}{5}

    x=12 groups

This will give 5 Students each in 12 different equally sized groups

b)

    x'=\frac{60}{12}

    x'=5groups

This also shows that students can grouped in equal groups of 12 in 5 places

6 0
3 years ago
Help on this dccr Pleaseeeeeeee
forsale [732]
1.C
2.C
3.C
4.Written
5.Depends on your way of learning what is "compatible"
6. Written
7.582

7 0
3 years ago
What is the value of (-4) (32)(1/4)?
Naddika [18.5K]

Answer:

it's −32

Step-by-step explanation:

my bad if u get it wrong or anything

6 0
3 years ago
Find the exact value of the following.
Burka [1]

Answer:

-12.96

Step-by-step explanation:

sorry if thats wrong

4 0
3 years ago
Read 2 more answers
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