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olasank [31]
3 years ago
14

I need help with this please

Mathematics
2 answers:
lesantik [10]3 years ago
4 0
2 rational numbers are C. 2.777 and D. -7/3

a rational number<span> is any </span>number<span> that can be expressed as the quotient or fraction p/q of two integers
</span>
as you know 0.7777 (7 repeat) = 7/9
so 2.777(7 repeat) = 2 7/9
pychu [463]3 years ago
4 0
A rational number is any number that can be expressed as the quotient or fraction of two integers. so i think all of them are rational numbers except B.

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What is the factored form of this expression?
kirill [66]

Answer:

= (3t+2)(3t-2)(3t-4)

Step-by-step explanation:

Given the expression 27t^3 - 36t^2 - 12t + 16

On factoring:

(27t^3 - 36t^2) - (12t + 16)

= 9t²(3t-4)-4(3t-4)

= (9t²-4)(3t-4)

factoring 9t²-4

9t²-4 = (3t)² - 2²

From different of two square, a²-b² = (a+b)(a-b)

Hence (3t)² - 2² = (3t+2)(3t-2)

= (9t²-4)(3t-4)

= (3t+2)(3t-2)(3t-4)

Hence the factored form of the expression is (3t+2)(3t-2)(3t-4)

6 0
3 years ago
Which expression is equivalent to 2j 5j?
Oliga [24]
2j+5j=7j Just add the two together.
6 0
3 years ago
Point N is on line segment MO. Given MN = x, MO = 3x - 6,
finlep [7]

Answer:

Step-by-step explanation:

N is between points M and O

MN = x

MO = 3x - 6

NO = x + 1

The way it reads MN + NO = MO

x + x + 1 = 3x - 6

2x + 1 = 3x - 6

2x - 2x +1 = 3x -2x - 6

1 = x - 6          

1 + 6 = x

x = 7

MO = 3x - 6

MO = 3*7 - 6

MO = 21 - 6

MO = 15

7 0
3 years ago
It cost $44.88 to buy 12 gallons of gas.What was the cost per gallon of gas?
Natali [406]

Answer:

$3.74 per gallon

Step-by-step explanation:

1. Divide $44.88 by 12

2. The answer will be 3.74

3. Each gallon will cost $3.74

4 0
3 years ago
What is the place value of 4 in 7.047?
Anika [276]

Answer:

2 decimal place?

i am not so sure, but i hope this helps.    :)

4 0
3 years ago
Read 2 more answers
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