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SashulF [63]
3 years ago
8

Why is -10+(-10)=0 wrong

Mathematics
2 answers:
Naya [18.7K]3 years ago
8 0

Answer:

-10+(-10)=-20

Step-by-step explanation:

This is incorrect because this is basically saying -10-10=? When is says to add outside of the parentheses and has a negative sign in it you always ignore the addition because it means that you have negative 10 and you are "adding" another negative 10 to it.

HOPE THIS HELPS XDDDDD

kenny6666 [7]3 years ago
5 0

Step-by-step explanation:

because because that would be subtracting positive 10 by -10. not adding -10 + -10 which would be 20

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Choose the value that will correctly replace the missing part?2(?+5)=6x+10
CaHeK987 [17]

Answer:

? = 3x

Step-by-step explanation:

2(? + 5) = 6x + 10

You must plug in a number that will get the same value on both sides of the equal sign.

2*5 = 10

2*? = 6x

6x/2 = 3x

8 0
3 years ago
In a genetics experiment on​ peas, one sample of offspring contained 450 green peas and 371 yellow peas. Based on those​ results
laiz [17]

Answer:

P(G) = 0.55

the probability of getting an offspring pea that is green. Is 0.55.

Is the result reasonably close to the value of three fourths that was​ expected?

No

Expected P(G)= three fourths = 3/4 = 0.75

Estimated P(G) = 0.55

Estimated P(G) is not reasonably close to 0.75

Step-by-step explanation:

Given;

Number of green peas offspring

G = 450

Number of yellow peas offspring

Y = 371

Total number of peas offspring

T = 450+371 = 821

the probability of getting an offspring pea that is green is;

P(G) = Number of green peas offspring/Total number of peas offspring

P(G) = G/T

Substituting the values;

P(G) = 450/821

P(G) = 0.548112058465

P(G) = 0.55

the probability of getting an offspring pea that is green. Is 0.55.

Is the result reasonably close to the value of three fourths that was​ expected?

No

Expected P(G)= three fourths = 3/4 = 0.75

Estimated P(G) = 0.55

Estimated P(G) is not reasonably close to 0.75

3 0
3 years ago
Persamaan suatu lingkaran adalah xpangkat2+ypangkat2+4x-6=0 tolong dong​
snow_tiger [21]
That looks confusing can u explain better
8 0
3 years ago
Melissa has 10 1/2 pounds of candy that she wants to share. If she divides the candy between herself and six friends, how many p
Fudgin [204]

Answer:

A. 1 1/2

Step-by-step explanation:

10.5/7=1.5

hope this helped have a good day

8 0
2 years ago
The sum of the measures of the interior angles of a regular polygon is 5400. find the number of sides in the polygon.
Svet_ta [14]
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
</span>
<span>Number of Sides = [Sum of Interior Angles / 180 degrees] +2

</span><span>Number of Sides = (5,400 / 180) +2

</span><span>Number of Sides = 32

Source:
http://www.1728.org/polygon.htm

</span>
4 0
3 years ago
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