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andreyandreev [35.5K]
1 year ago
11

The number w and 0.8 are additive inverses.

Mathematics
2 answers:
Ilia_Sergeevich [38]1 year ago
5 0

This is the correct answer i just did the test

umka2103 [35]1 year ago
3 0

Since, the number w and 0.8 are additive inverses.

A number 'a' is said to have an additive inverse '-a' if "a+ (-a)= 0".

Since, 'w' and '0.8' are additive inverses of each other such that w + 0.8 = 0

Therefore, the value of 'w' should be '-0.8' so that -0.8 + 0.8 = 0.

So, the value of 'w' is =0.8

Now, Refer to the attached image which represents the position of 0.8 , w ( that is -0.8) and the sum of 0.8 and w.

Sum of 0.8 and w = 0.8 + w

= 0.8 +(-0.8)

= 0.

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Decide, without calculation, if each of the integrals below are positive, negative, or zero. Let D be the region inside the unit
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The integrals over R and L are zero. If we take f(x,y)=xe^x, then f(x,-y)=f(x,y), which is to say f is symmetric across the x-axis. For the same reason, the integral over all of D is also zero.

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2 years ago
Serena estimates that she can paint 60 square feet of wall space every half -hour .Write a equations for the relationship with t
lina2011 [118]

Answer: So, the relationship with i hours as the indecent variables would be y=120i

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Step-by-step explanation:

Since we have given that

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Time taken = half hour = 30 minutes = 0.5 hours

Using "Unitary method, we get that

In 0.5 hours, she can paint = 60 square feet

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In i hours, she can paint = 120\times i\ sq.\ feet=120i\ sq.\ feet

Let the total area she can paint be 'y'.

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y=120i

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We put y = 400 and i = 3.5 hours to check whether it is equal or not.

400= 120\times 3.5\\\\400\neq 420

Hence, Serena can't paint 400 square feet of wall space of wall space in 3.5 hours.

3 0
1 year ago
Instead of having 1.5 times as many pink flowers as white flowers, molly has decided to plant a garden with twice as many pink f
harkovskaia [24]

Answer:

Row 1 = 2 white flowers

Row 2 = 3 white flowers

Row 3 = 4 white flowers

Step-by-step explanation:

Instead of having 1.5 times as many pink flowers as white flowers, Molly has decided to plant a garden with twice as many pink flowers as white flowers per row. If she plants 3 rows, with 4, 6, and 8 pink flowers, how can you find the number of white flowers in each of those rows?

Let

White flowers = x

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Number of white flowers in each row is

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Divide both sides by 2

x= 2

White flowers = 2 in row 1

Row 2

Pink flowers = 6

2x=6

Divide both sides by 2

x= 3

White flowers in row 2 = 3

Row 3

Pink flowers = 8

2x=8

Divide both sides by 2

x= 4

White flowers in row 3 = 4

Therefore, the number of white flowers in each rows are 2, 3 and 4 respectively

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2 years ago
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David: x = 3 years old
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