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3 years ago

without actually subtracting, how can you tell whether the result of subtracting two numbers will be negative?

Mathematics

2 answers:

nadya68 [22]3 years ago

3 0

Answer:

if a<b

Step-by-step explanation:

a-b<0 if a<b

Vika [28.1K]3 years ago

3 0

Answer:

if we subtract two negative numbers the result is negative .

for instance, -3-4 = -7

and if we subtract a positive number from a negative number the answer is positive and vice versa the answer will be negative if the negative number is greater than the positive number.

for instance, -6 + 2 = -4

but if the negative number is greater than, +6 - 2 = 4

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Find x(3x+72) triangle

Alinara [238K]

Answer: x = -4 ; Angle = 60°

Concept:

The given figure is a triangle with 3 arc signs on each angle. This arc sign stands for the corresponding angles are congruent, which in this question, it shows that all three angles are congruent. Sometimes, if the figure has multiple angles and there are different groupings of congruent angles, then we use different numbers of arcs or symbols.

Solve:

Given information

An angle = 3x + 72

Total measure of angles = 180 (triangle angle sum theorem)

Total number of congruent angles = 3

Given expression

Total measure = Total number of congruent angles × An angle measure

Substitute values into the expression

180 = 3 (3x + 72)

Divide 3 on both sides

180 / 3 = 3 (3x + 72) / 3

60 = 3x + 72

Subtract 72 on both sides

60 - 72 = 3x + 72 - 72

-12 = 3x

Divide 3 on both sides

-12 / 3 = 3x / 3

$\boxed{x=-4}$

Find the angle measure

3x + 72 = 3 (-4) + 72 = $\boxed{60}$

Hope this helps!! :)

Please let me know if you have any questions

6 0

2 years ago

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What is the slope of the line through ( 1 , − 1 ) and( 5 , − 7 )

Semenov [28]

M= y2-y1 -7- -1
------- = _-6_ = -3/2
x2-x1 5 -1 4

3 0

3 years ago

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1 is the first term in the geometric sequence 1, -4, 16, -64.... what is the SEVENTH term of the sequence?

Illusion [34]

1, -4, 16, -64, 256, -1024, 4096

answer: 4096

7 0

3 years ago

How to factor z^12 - 64 (question 17.)

aivan3 [116]

(z^6 - 8)(z^6 + 8) is the answer. If you verify this by multiplying, you will see that: (z^6 - 8)(z^6 + 8) = z^(6+6) + 8z^6 - 8z^6 - 64 = z^12 + 0 - 64 = z^12 - 64 Hope this helps, Brian

4 0

3 years ago

Whats the point from equation for y - 4 = -3(x - 3)

Firlakuza [10]

Y-4= -3(x-3)
First you'll distribute the -3(x-3) and you should get -3x+9 (a negative divided by a negative is a positive)
So your new equation will be y-4=-3x+9. Next you'll get rid of the -4 y adding 4 on both sides of the equation. So you should get y=-3x+13. So points you could use is (0,13),(1,10),(2,7)

4 0

3 years ago

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