3 years ago

Are these correct if not what can I do to fix them

Mathematics

2 answers:

Hoochie [10]3 years ago

7 0

So if the number is positive then the opposite is negative, vice versa.
opposite of 4 is -4
opposite of -5 is 5

gavmur [86]3 years ago

5 0

For the third question, the opposite of 82 is -82 not 82. For everything else, it looks fine. Great job! :)

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nordsb [41]

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4 0

3 years ago

If w+ -4 2/5= 1/10 what does w equal

Nesterboy [21]

Answer:

Step-by-step explanation:

w+ -4 2/5= 1/10

W = 1/10 + 4 2/5

W = 1/10 + 22/5

W = (1 + 44)/10

W = 45/10

W = 9/2

W = 4 1/2

8 0

3 years ago

(2)+(-13)=<br>whats the answer?

ziro4ka [17]

Answer:

$- 11$

Step-by-step explanation:

$2 + ( - 13) \\ 2 - 13 = - 11$

5 0

3 years ago

Sonji paid $25 for two scarves, which were different prices. When she got home she could not find the receipt. She remembered th

Oksanka [162]

Answer:

$14

Step-by-step explanation:

Make the variables:

x + 3

2x + 3 = 25

2x = 22

x = 11

11, 14

5 0

3 years ago

Read 2 more answers

State the value of the discriminant for <br><br>y = <img src="https://tex.z-dn.net/?f=5x%5E2%2B9x-3" id="TexFormula1" title="5x^

Nostrana [21]

Answer:

141, meaning that there will be two real solutions

Step-by-step explanation:

The discriminant of a quadratic is $b^2-4ac$ , which in this case is:

$9^2-4(5)(-3)=81+60=141$

Since the discriminant is positive and not zero, there will be two real solutions to this equation. This is because when the discriminant is negative, and you take the square root of it, you get a negative number. If you take the square root of 0, you get 0, which means that there will only be one solution to the equation.

Hope this helps!

3 0

3 years ago