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2 years ago

Mark the sum as either positive or negative

Mathematics

2 answers:

tester [92]2 years ago

6 0

Answer:

1: Positive

2: Negative

3: Negative

4: Negative

Step-by-step explanation:

Positive plus Negative equals negative.

Positive plus positive or negative plus negative equals positive.

Hope this helps.

kicyunya [14]2 years ago

3 0

Step-by-step explanation:

-8+(-9) = -17 <--- Negative If they are both negative, then you do the simple math part and then add the negative sign

7+(-3) = 4 <---- Positive If there are only one negative, then you get rid of the '+' and then the equation turns into 7-3. You would do the simple math.

5+(-12) = -7 <----- Negative. Here, there is only one negative sign but the negative number is greater than the positive number. So, you would do the math 5-12 and use the negative sign.

-12+5 = -7 <----- Negative Look at the one above this.

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What does 1/9-(-2/5-8/9) equal?

babunello [35]

1/9 - (-2/5 - 8/9) = 1/9 + 2/5 + 8/9 = 1 + 2/5 = 7/5 or 1 2/5

6 0

3 years ago

Find the midpoint of the line segment with the endpoints A and B.

zavuch27 [327]

Answer:

Step-by-step explanation:

The midpoint M of two endpoints of a line segment can be found by using the formula

$M = ( \frac{x1 + x2}{2} , \: \frac{y1 + y2}{2} )\\$

From the question we have

$m = ( \frac{2 + 10}{2} \: , \: \frac{6 + 8}{2} ) \\ = (\frac{12}{2} \: , \: \frac{14}{2} ) \: \: \: \: \: \: \:$

We have the final answer as

Hope this helps you

3 0

2 years ago

What information does the point-slope form of a linear equation reveal about a line?

Rudik [331]

It reveals the slope and a single point on the line

3 0

3 years ago

If 30g of sugar is needed to make 4 cakes how much grams of sugar is needed to make 7 cakes

arsen [322]

There's two ways to do this.

The first way:
Work out the amount of sugar needed to make one cake, and then multiply that by 7.

30 grams ÷ 4 cakes = 7.5 grams for 1 cake.
7.5 grams × 7 cakes = 52.5 grams for 7 cakes.

The second way:
Work out the ratio of sugar:cake by doing 7 ÷ 4, and then multiplying that value by 30.

7 cakes ÷ 4 cakes = 1.75
1.75 × 30 grams = 52.5 grams for 7 cakes.

Either way, the answer is 52.5 grams.

6 0

3 years ago

–6 + (–12)<br><br><br>Evaluate the expression

Elanso [62]

Answer:

-18.

Step-by-step explanation:

They're both negative numbers being added to each other, so you'd add 6 and 12 (which is 18) and then put a negative sign before the 18. Therefore, your answer is -18.

I hope this helps, have a nice day.

3 0

2 years ago