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kramer
3 years ago
5

The value of the expression -|a-b| when a=7and b = -3 is

Mathematics
2 answers:
mote1985 [20]3 years ago
8 0

-10

-|a-b|=-|7-(-3)|=-|10|=-10

SIZIF [17.4K]3 years ago
6 0

-|a - b|

-|7 - (-3)|

-|10| = -10

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Write the given trinomial if possible as a square of a binomial or as an expression opposite to a square of a binomial:
Ksenya-84 [330]

\frac{4}{9}b^2 + 0.4bc + 0.09c^2 = \frac{4}{9}b^2 + \frac{4}{10}bc  + \frac{9}{100}c^2 = (\frac{2}{3}b + \frac{3}{10}c)^2

7 0
3 years ago
How to add fractions? with unlike denominators
stellarik [79]

Answer:

The recipe calls for 19/12 or 1 7/9 cups.


Step-by-step:

In order to get this answer, we have to add all three fractions together. First, we have to find the LCM (Least Common Multiple) between the three denominators:

2: 2, 4, 6, 8, 10, 12

3: 3,6,9,12

4: 4,8,12

The LCM between these three denominators is 12.

4x3=12

2x6=12

3x4=12

You now multiply the numerator by the same number you multiplied by for the denominator in order to get 12:

3/4 becomes 9/12

1/2 becomes 6/12

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We now add all the fractions together:

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We got 19/12 but the answer is an improper fraction so we turn it into a mixed number:

12x1=12 (7 remaining)

This is written as 1 7/12.

Hope this helps! :)

<h3>CloutAnswers</h3>
3 0
3 years ago
The half-life of a radioactive kind of iodine is 60 days. How much will be left after 240 days, if you start with 480 grams of i
exis [7]

Answer:

30 grams

Step-by-step explanation:

half life is 60 days so every 60 days the amount 480 grams will be half

in 240 days will decay  240 /60 = 4 times

once 480 /2 = 240

twice 240 /2 = 120

trice 120 / 2 = 60

four times 60/2 = 30 grams will be left

6 0
2 years ago
Can someone help me, please? Also, can someone explain it?
Arada [10]

Answer:60m^2

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5 0
3 years ago
Evaluate -32 + (2-6)(10).
Sergio039 [100]

Answer:

-72

Step-by-step explanation:

-32 + (2-6)(10).

PEMDAS

parentheses first

-32 + -4*10

Then multiply

-32 -40

Then subtract

-72

7 0
3 years ago
Read 2 more answers
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