3 years ago

What is the answer to 5 - ( - 12 )

Mathematics

1 answer:

Bond [772]3 years ago

7 0

Answer: 17

Step-by-step explanation:

since there are two minuses, you change them to a plus and add, ending up with 5+12 to get 17

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Write an equation of a line that passes through the point (7, 3) and is parallel to the line y = negative 2 over 3x + 3.

alexandr1967 [171]

Parallel lines have the same slope, but different y-intercepts

The slope of both lines is -2/3

To find the equation that passes through (7, 3) we can use the point-slope formula: y - y1 = m (x - x1)

y - (3) = (-2/3) (x - (7))

y - 3 = -2/3x + 4 and 2/3

y = -2/3x + 7 and 2/3

y = -2/3x + 7.67

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2 years ago

Find the missing endpoint if the midpoint of a segment is at (- 3, 4) and the other endpoint is at (1, 2) .

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Answer:

(-7,6)

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3 years ago

PLEASE HELP!!!!!The table below shows the data for a random sample of fish that were collected from and later released into a la

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Answer:B

Step-by-step explanation:

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

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3 years ago

How do I solve -4|2-3|+2|-3+1|?

emmasim [6.3K]

Answer:

Step-by-step explanation:

-4|2-3|+2|-3+1|

-4|-1|+2|-2|

-4(1)+2(2)

-4+4

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3 years ago