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miss Akunina [59]
3 years ago
14

Choose the equation that represents a line that passes through points (−1, 2) and (3, 1).

Mathematics
2 answers:
Sholpan [36]3 years ago
7 0
B) X+4y=7

It works with both equations
prohojiy [21]3 years ago
7 0

Answer:

B

Step-by-step explanation:

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Which is greater ratio than 2:7
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are their supposed to be answer choices

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Can you please help me?!
Fudgin [204]

Answer:

A and B are correct

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4 0
3 years ago
What is the slope of the line represented by the equation y = -1/2x+ 1/4​
kolbaska11 [484]

Answer:

y = mx+ b

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-1/2

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6 0
3 years ago
Read 2 more answers
Two cargo ships spot a signal fire on a small island. The captains know they are 140 feet
Irina18 [472]

The distance from Ship B to the signal fire at point C is 405.4 \mathrm{ft}

Explanation:

It is given that two ships A and B are at a distance 140 ft from each other.

The angle formed by ship A is 82º and the angle formed by ship B is 78º.

To determine the distance from ship B to the signal fire at point C, we need to know the another angle.

Hence, we have,

\begin{aligned}\angle A+\angle B+\angle C &=180^{\circ} \\82^{\circ}+78^{\circ}+\angle C &=180^{\circ} \\160^{\circ}+\angle C &=180^{\circ} \\\angle C &=20^{\circ}\end{aligned}

Now, we shall solve the problem using the law of sines,

\frac{\sin A}{a}=\frac{\sin C}{c}

Substituting the values, we have,

\frac{\sin 82^{\circ}}{a}=\frac{\sin 20^{\circ}}{140}

\frac{0.9903}{a}=\frac{0.3420}{140}

Simplifying, we get,

a=\frac{0.9903 \times 140}{0.3420}

a=405.4

Thus, the distance from Ship B to the signal fire at point C is 405.4 \mathrm{ft}

4 0
3 years ago
Solve for x <br> -3(-5x+2)+x-3=39
omeli [17]
15x-6+x-3=39
16x-9=39
16x=39+9
16x=48
x=48/16
x=3
4 0
3 years ago
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