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USPshnik [31]
2 years ago
6

Why is 2 + (-3) = -1

Mathematics
1 answer:
Softa [21]2 years ago
4 0

Answer:

Because +- or - + = -

Step-by-step explanation:

-a + b = - c

a + - b = - c

-a × b = - c

a × - b = -c

Extra references:

-ve ×/+ -ve = +ve

+ve ×/+ -ve = - ve

-ve ×/+ +ve = - ve

+ve ×/+ +ve = +ve

Hope these could solve your problem.

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Last year the highest temperature in a city was recorded as 23ºC, and the lowest temperature was recorded as -10ºC. How many deg
DerKrebs [107]

33 degrees C

Step-by-step explanation:

On the integer scale, the numeric values can be added thus

23 to -10

23 to 0 and 0 to -10

23-0 = 23

0 -(-10) = 10

23 + 10 = 33

Thus, 33 degree C is the difference between the two temperatures.

5 0
3 years ago
Find the equation of the tangent line to the curve y=2sinx
Mrrafil [7]
 Hello
f(x) = 2sin(x)
f(<span>π/6) = 1 
f'(x) 2cos(x)
f'(</span>π/6) = 2×co(π/6) = 2 × root(3)×0.5  =root(3)
The equation of this tangent line is : y= root(3)(x-π/6)+1
y = root(3)x+1 - π/6(root(x))  <span>in the form y=mx+b
m = root(3)   and   b = </span>1 - π/6(root(x))
8 0
3 years ago
The sum of the measures of angle M and angle R is 90°.
Fiesta28 [93]

Answer:

The value of x would be 5

Step-by-step explanation:

(for future reference if you have questions like this it’s better to fill in numbers for x to be able to answer the question)

So you want to fill in x with a number. In this case in order for this equation to be right you fill x with 5.

So 5(5)+10=35

And to check your answer to make sure it’s right you would add the measure of angle R which is 55 to the measure of angle M which is 35.

55+35 is 90. Which makes your answer for x correct :) hopefully this makes sense.

4 0
3 years ago
Multiply (x + 3)(x - 2)
Tju [1.3M]

Answer:

Step-by-step explanation:

(X+3)(x-2)

3x-2x

X

6 0
3 years ago
Read 2 more answers
What is #14??? Plz show work
ivanzaharov [21]
I can burly read that but the fraction should be right

6 0
2 years ago
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