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2 years ago

(-57)-(+12) find the difference

Mathematics

2 answers:

Airida [17]2 years ago

7 0

Answer:

siiiii

Step-by-step explanation:

erma4kov [3.2K]2 years ago

7 0

Answer:

the difference is -69

Step-by-step explanation:'

Since there is a negative sign in between the +12 becomes -12 . The you subtract the both.

Basically its adding 57 and 12 but then making it negative. So you would get -69.

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What does 1/4 X plus 3/4 equal

Gwar [14]

Answer:

Step-by-step explanation:

because the fractions have a common denominator you can add them

$\frac{1}{4} x + \frac{3}{4} (x)= \frac{4}{4} x=1x\\\\$

7 0

3 years ago

If AC=5cm, BC=12cm, and m AC= 40 degrees what is the radius of the circumscribed circle

melamori03 [73]

Let's assume they meant C=40 degrees. With an angle like that they're asking for approximation; we'll oblige.

The circumradius is the product of the triangle sides divided by four times the area.

Here we have remaining side given by the Law of Cosines.

$AB^2 = AC^2 + BC^2 - 2\ AC \ BC \cos C$

$AB^2 = AC^2 + BC^2 - 2 AC \ AB \cos C = 5^2 + 12^2 - 2(5)(12) \cos 40^\circ$

$AB = \sqrt{ 169 - 120 \cos 40 ^\circ} \approx 8.77921789$

The area is $\frac 1 2\ AC \ BC \sin C = \frac 1 2 (5)(12) \sin 40^\circ \approx 19.283628$

The circumradius is $r \approx \dfrac{(5)(12)(8.77921789 )}{ 4 (19.283628) } = 6.829019329$

5 0

3 years ago

What is he reciprocal of 3

LenKa [72]

1/3 because reciprocal is the opposite

4 0

3 years ago

Read 2 more answers

Amanda, Rafael, and Michael served a total of 92 orders Monday at the school cafeteria. Rafael served 2 times as many orders as

Schach [20]

The number of orders Michael, Rafael and Amanda served are 16.8, 33.6, and 41.6 servings

respectively.

<h3>Equation</h3>

Michael = x
Rafael = 2x
Amanda = 2x + 8
Total servings = 92 orders

x + 2x + (2x + 8) = 92

3x + 2x + 8 = 92

5x = 92 - 8

5x = 84

x = 84/5

x = 16.8 servings

Therefore,

Michael = x

= 16.8 servings

Rafael = 2x

= 2(16.8)

= 33.6 servings

Amanda = 2x + 8

= 33.6 + 8

= 41.6 servings

Learn more about equation:

brainly.com/question/4344214

#SPJ1

5 0

1 year ago

Help me<br><br> g + 3 + 4(9 + 2) =

GrogVix [38]

Answer:

g+3 +36+8=

g+39+8=

g+47

You can't find an answer but this is how you would simplify it :)

Step-by-step explanation:

4 0

2 years ago

(-57)-(+12) find the difference​

(-57)-(+12) find the difference