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2 years ago

Point-Slope Form See photo

Mathematics

1 answer:

Ne4ueva [31]2 years ago

4 0

Answer:

y = 3x - 5

Step-by-step explanation:

We know that the equation 'y = 3x + ?' intersects the point (1, -2). This means that when x = 1, y = -2 in out equation above. To solve this just plug in the x and y values to get '?'.

$y = 3x + ?\\-2 = 3(1) + ?\\-5 = ?$

Now that we know '?' is -5, we write it back into slope intercept form, so our final answer is y = 3x - 5

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Someone please help me answer this!!

lianna [129]

Answer:

7.1 units is the answer

Step-by-step explanation:

$d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{(6-1)^2 + (2-7)^2}\\\\d=\sqrt{(5\\)^2+(-5)^2} \\\\d=\sqrt{25+25} \\\\d=\sqrt{50} \\\\d=7.071..$

Rounding off,

d = 7.1 units

3 0

3 years ago

4x/x+3 - 4x/x+6 <br> Please help me find the right answer thxs

Arisa [49]

Answer:

Step-by-step explanation:

For 4x/x+3, just cancel the x to get 4+3=7

For -4x/x+6, cancel the x to get -4+6=2

7+2=9

Hope this helps

6 0

3 years ago

A bag contains n blue and m red marbles. You randomly pick a marble from the bag, write down its color, and then put the marble

Oksana_A [137]

Answer:

(mn+n²)/(m+n)

Step-by-step explanation:

probability of blue marble= n/(n+m)

probability of red marble= m/(n+m)

probability that process stops = Probability of both blue + probability of both red= n/(n+m) × n/(n+m) + m/(n+m)×m/(n+m)

= (n²+m²)/(n+m)²

P(1st marbel is blue)= P(blue and red) + P(blue and blue)

= mn/(n+m) + n²/(n+m)

= (mn+n²)/(m+n)

P(1st marble is blue | process stops)= ( (mn+n²)/(m+n)× (n²+m²)/(n+m)²)/ ((n²+m²)/(n+m)²)

= (mn+n²)/(m+n)

3 0

4 years ago

Solve the equation 12+ 0.35×=20.05

lbvjy [14]

12 + 0.35X = 20.05
12 + 0.35X - 12 = 20.05 - 12
0.35X = 8.05
0.35X/0.35 = 8.05/0.35
X = 23
Hope this helps!!

8 0

3 years ago

Workers in an office of 40 staff were asked their favourite take away. the results are summarised in the table.

tia_tia [17]

Answer:

Pizza: 27°

Curry: 108°

Fish and Chips: 63°

Kabab: 27°

Other: 135°

Step-by-step explanation:

Frequency 40 = 360°

Pizza (3) = $\frac{3}{40}$ * 360° = 27°

Curry (12) = $\frac{12}{40}$ * 360° = 108°

Fish and Chips (7) = $\frac{7}{40}$ * 360° = 63°

Kabab (3) = $\frac{3}{40}$ * 360° = 27°

Other (15) = $\frac{15}{40}$ * 360° = 135°

27 + 108 + 63 + 27 + 135 = 360

4 0

3 years ago

Point-Slope Form *See photo*

Point-Slope Form See photo