4 years ago

Which of the expressions have positive values and which have negative values 7-(-4) -3+(-2) 5-8 -10+12

Mathematics

1 answer:

barxatty [35]4 years ago

4 0

Answer:

Positive: 7-(-4) and -10+12

Negative -3+(-2) and 5-8

Step-by-step explanation:

Addition and subtraction rules:

2 negatives make a positive

A bigger positive number added to a smaller negative number is positive

A negative plus a negative is a negative.

You might be interested in

10 boys cleared a piece of land for 21 days how many days will it take 7 boys to clear the same land if they work at the same ra

zimovet [89]

Answer:

it took 7 boys 21 days to clear a piece of land.

8 0

3 years ago

Which of the following statements must be true about this diagram? check all that apply.

Novosadov [1.4K]

I believe z>x if I’m wrong let me know

6 0

3 years ago

A woman weighs herself. Her mass is 43.4 kg and she is trying to increase .She successfully increases her mass by 8%. a) Work ou

-Dominant- [34]

Answer:

Increase in her mass = 3.472 kg

Her new mass = 46.872 kg

Step-by-step explanation:

Her original mass = 43.4 kg

Percentage increase in her mass = 8%

Increase in her mass = 8% of 43.4 kg

= 8/100 * 43.4 kg

= 0.08 * 43.4 kg

= 3.472 kg

Increase in her mass = 3.472 kg

b) Work out her new mass

Her new mass = Her original mass + Increase in her mass

= 43.4 kg + 3.472 kg

= 46.872 kg

Her new mass = 46.872 kg

7 0

3 years ago

Jim wants to build a rectangular parking lot along a busy street but only has 1,700 feet of fencing available. If no fencing is

LUCKY_DIMON [66]

Do you have any more information? A Picture, maybe?

7 0

3 years ago

Whats the Area? how do i find it? In these specific questions?

just olya [345]

The formula for finding the area of a square is:
${s}^{2}$

The formula for finding the area of a triangle is:
$\frac{1}{2} bh$

So for the square the area would be:
${2x}^{2} \times {2x}^{2} = {4x}^{2}$

The area for the triangle would be:

$\frac{1}{2} {2c}^{3} \times 4c = {4c}^{2}$

7 0

3 years ago