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garri49 [273]
3 years ago
14

Explain to different ways it is possible to add to rational numbers and get a negative number

Mathematics
1 answer:
maw [93]3 years ago
4 0
Same sign add different sign subtract that means if their both positive you add and if one is positive and the other is negative you subtract

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Which of the following of appropriate units of measure to use when finding the mass of a pencil?
lana [24]

Answer:

Grams

Step-by-step explanation:

Mass is the amount of matter present inside a solid. Kilograms and grams are the units to measure mass of an object.

For pencil, the unit to measure its mass is grams. As its mass is less, we can use smaller unit.

Hence, the correct option is (c) "grams"

4 0
3 years ago
Donna had $9 in her bank account. She made $16 when she mowed her neighbors' lawns. Then,
Trava [24]

Answer:

$-2

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
For a t distribution with degrees of freedom, find the area, or probability, in each region. a. To the right of (to 3 decimals)
ddd [48]

Answer:

a) P(t>2.120) = 0.025

b) P(t<1.337) = 0.90

c) P(t<-1.746) = 0.05

d) P(t>2.583) = 0.01

e) P(-2.120<t<2.120) = 0.95

f) P(-1.746<t<1.746) = 0.90

Step-by-step explanation:

The question is incomplete:

For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.

a. To the right of 2.120. (Use 3 decimals.)

b. To the left of 1.337. (Use 2 decimals.)

c. To the left of -1.746. (Use 2 decimals.)

d. To the right of 2.583. (Use 2 decimals.)

e. Between -2.120 and 2.120. (Use 2 decimals.)

f. Between -1.746 and 1.746. (Use 2 decimals.)

We have a t-distribution with 16 degrees of freedom.

We can calculate the probabilities with a spreadsheet, a table or an applet.

We have to calculate the probabilities of:

a) P(t>2.120) = 0.025

b) P(t<1.337) = 0.90

c) P(t<-1.746) = 0.05

d) P(t>2.583) = 0.01

e) P(-2.120<t<2.120) = 0.95

f) P(-1.746<t<1.746) = 0.90

8 0
3 years ago
5 + 3x - 2 for in the simplest form
emmasim [6.3K]

Answer:

3x +3

Step-by-step explanation:

5 + 3x - 2

Combine like terms

3x  +5-2

3x +3

8 0
3 years ago
Read 2 more answers
IF U ANSWER THIS U ARE SWAG
Andrews [41]
Equilateral: "equal"-lateral (lateral means side) so they have all equal sides. Isosceles: means "equal legs", and we have two legs, right? Also iSOSceles has two equal "Sides" joined by an "Odd" side. Scalene: means "uneven" or "odd", so no equal sides.
8 0
2 years ago
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