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3 years ago

Evaluate 5+(−3) = plz I need help

Mathematics

2 answers:

Illusion [34]3 years ago

7 0

Answer:

Step-by-step explanation:

it's just 5 - 3 lol, 5+-3=2

s344n2d4d5 [400]3 years ago

7 0

Answer:

Step-by-step explanation:

5+(-3)

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When you are adding a negative you are subtracting.

--------------------------

In this equation, we can replace the "+(-)" with "-" like this:

--------------------------

5+(-3)=

5-3=

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With that, the final answer is...

5-3=

--------------------------

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iVinArrow [24]

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3 years ago

If m varies directly with x 2 , and m = 10 when x = −4, find the value of m when x = 3

mestny [16]

If it is directly proportional, then:

m = kx
10 = k x -4
k = -2.5

m = 3 x -2.5
m= 7.5

Hope I helped!

7 0

3 years ago

If the standard deviation is 7.3kg, what is the variance?

sasho [114]

Answer:

The variance is 53.29 kg²

Step-by-step explanation:

The standard deviation is the square root of the variance.

$S(X) = \sqrt{V(X)}$

In which problem, we have that:

$S(X) = 7.3$

$\sqrt{V(X)} = 7.3$

$\sqrt{V(X)}^{2} = (7.3)^{2}$

$V(X) = 53.29$

The variance is 53.29 kg²

6 0

3 years ago

Mrs.Magdalino kept records on how much she spent on gasoline and the maintenance of her car. She found that it cost $485 to driv

Semenov [28]

Cost per mile = $\frac{cost}{number of miles}$

$= \frac{485}{500}$

= 0.97

Now,

c - cost for gasoline and maintenance and

m - number of miles traveled

Hence, the required expression is c = 0.97m.

6 0

3 years ago

-2(x-1) I need help????????

12345 [234]

Answer:

-2x+2

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers