2 years ago

PLEASE ANSWER ALOT OF POINTS

Mathematics

2 answers:

Anton [14]2 years ago

8 0

Answer:

Part A : It has one solution because the lines intersect at one point

Part B : The solution is the points where the lines intersect

Which is (3,4)

tatyana61 [14]2 years ago

5 0

Answer:

Part A 1 solution

Part B 1,4

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Find the distance from point A to the given line:<br> A(-1, 7), y=3x<br><br> How do I solve this?

kipiarov [429]

he formula of a distance between a point (a, b)

and a line Ax + By + C = 0:

$d=\dfrac{|Aa+Bb+C|}{\sqrt{A^2+B^2}}$

We have the point A(-1, 7) → a = -1, b = 7

and the line y = 3x → 3x - y = 0 → A = 3, B = -1, C = 0.

Substitute:

$d=\dfrac{|(3)(-1)+(-1)(7)+0|}{\sqrt{3^2+(-1)^2}}=\dfrac{|-3-7|}{\sqrt{9+1}}=\dfrac{|-10|}{\sqrt{10}}=\dfrac{10\sqrt{10}}{\sqrt{10}\cdot\sqrt{10}}\\\\=\dfrac{10\sqrt{10}}{10}=\sqrt{10}$

<h3>Answer: d = √10</h3>

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3 years ago

How much is 1.4 kg minus 650 grams

faltersainse [42]

First of all you have to convert kg to grams

so there is 1 kg in 1000g
.4 kg is 400g
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1400-650 = 750 kg

that's your final answer

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3 years ago

The railroad company wants to sell $8,134 in tickets. If each ticket costs $7, how many

Licemer1 [7]

Answer:

1162 tickets will need to be sold

Step-by-step explanation:

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Step-by-step explanation:

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Read 2 more answers

Systems of equation:substitution

Igoryamba

Step-by-step explanation:

describe y in terms of x

y=5+x

so now replace y with terms of x

5+x+3x=37

4x=32

x=8

y=13

do the same here

x=y+1

2y+x=19

2y+y+1=19

3y=18

x=6

y=7

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3 years ago