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Simora [160]
3 years ago
8

-2/3×3/5+5/2-3/5×1/6​

Mathematics
1 answer:
siniylev [52]3 years ago
3 0

Answer:

2

Step-by-step explanation:

calculator

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This problem is simple the correct choice for this problem will be a
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Evaluate -6 minus parentheses -1 parentheses
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-6 minus parentheses -1 parentheses

-6 - (-1)
When there are two negatives, they cancel out to create a positive.

-6 + 1

The answer is -5.
6 0
3 years ago
Which of the following represents 1.65 rounded to the nearest whole number?
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1.65 rounded to the nearest whole number is 2
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3 years ago
(09.01) A biologist created the following graph to show the relationship between the temperature of water (x), in degrees Celsiu
lukranit [14]

Answer:

x-intercept:

A line that crosses the graph at x-axis.

i.e substitute y = 0 and solve for x.

As per the statement:

A biologist created the following graph to show the relationship between the temperature of water (x), in degrees Celsius, and the number of insect larvae (y) in the water

Given the graph:

y = -2x^2+20x+400

Substitute y = 0  we have;

-2x^2+20x+400 = 0

⇒-2(x^2-10x-200) = 0

⇒x^2-10x-200 =0

⇒x^2-20x+10x-200 =0

⇒x(x-20)+10(x-20)=0

⇒(x-20)(x+10)=0

By zero product property we have;

x-20 =0 and x+10 = 0

⇒x = 20 and x = -10

Therefore,  the x-intercept represents the water has no larvae at −10 degrees Celsius and 20 degrees Celsius.

6 0
3 years ago
Read 2 more answers
If a is an odd number, b is not divisible by 3 and LCM of a and b is P, what is the LCM of 3a and 2b?
Olenka [21]

Answer:

The LCM of 3a and 2b = 6P

Step-by-step explanation:

LCM of  3 a  and  2 b  will be  6 p

Since  a  is odd, which means it's not divisible by 2. Therefore a can be number 1, 3, 5, 7, 9, 11, .......

b  is not divisible by  3, which means b can be number 1, 2, 4, 5, 7, 8, 10, 11, .....

LCM of a and b is P

Factors of 2b can be 2 multiplied by (1, 2, 4, 5, 7, 8, 10, 11, ..... )  

Factors of 3a can be 3 multiplied by (1, 3, 5, 7, 9, 11, .......)

So, to get the LCM of 3a and 2b, since we already show the factors of a and b, Then, 3 X 2 X P (remember P is the LCM of a and b)

The LCM of 3a and 2b = 6P

       

3 0
3 years ago
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