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3 years ago

(a) Find the distance between (1, 4) and (-2,3)

Mathematics

2 answers:

Sunny_sXe [5.5K]3 years ago

7 0

Answer:

Subscirbe to me my Youtub.e is Justinsucks172

Step-by-step explanation:

svetlana [45]3 years ago

4 0

Answer:

(a) 2√5

(b) 6√5

Step-by-step explanation:

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2x+3y=41 and 5x+4y=85

Sever21 [200]

Answer:

5x+4y=85-

Slope = -2.500/2.000 = -1.250

x-intercept = 85/5 = 17

y-intercept = 85/4 = 21.25000

2x+3y=41-

Slope = -1.333/2.000 = -0.667

x-intercept = 41/2 = 20.50000

y-intercept = 41/3 = 13.66667

5 0

3 years ago

Which ordered pair is a solution to the system of linear equations One-half x minus three-fourths y = StartFraction 11 Over 60 E

s344n2d4d5 [400]

Answer:

$\left(\dfrac{2}{3},\dfrac{1}{5}\right)$

Step-by-step explanation:

Given the system of two equations:

$\left\{\begin{array}{l}\dfrac{1}{2}x-\dfrac{3}{4}y=\dfrac{11}{60}\\ \\\dfrac{2}{5}x+\dfrac{1}{6}y=\dfrac{3}{10}\end{array}\right.$

Multiply the first equation and the second equation by 60 to get rid of fractions:

$\left\{\begin{array}{l}30x-45y=11\\ \\24x+10y=18\end{array}\right.$

Now multiply the first equation by 4 and the second equation by 5:

$\left\{\begin{array}{l}120x-180y=44\\ \\120x+50y=90\end{array}\right.$

Subtract them:

$(120x-180y)-(120x+50y)=44-90\\ \\120x-180y-120x-50y=-46\\ \\-230y=-46\\ \\y=\dfrac{46}{230}=\dfrac{1}{5}$

Substitute it into the first equation:

$30x-45\cdot \dfrac{1}{5}=11\\ \\30x-9=11\\ \\30x=11+9\\ \\30x=20\\ \\x=\dfrac{2}{3}$

The solution is $\left(\dfrac{2}{3},\dfrac{1}{5}\right)$

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3 years ago

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Expand and simplify<br> 3(4a - 5b) + 2(2a - 3b)

mafiozo [28]

Answer:

a = 5/2

b = 1

I hope it correct

Step-by-step explanation:

Thank you

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3 years ago

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George and Jane are in charge of making a banner for the basketball game this Saturday. How much poster paper will they need for

Murljashka [212]

27 square feet of poster paper. I had this question in class. Hope this helps. C;

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4 years ago

Write an equation of the line that has a slope of 9 and y-intercept of -3

12345 [234]

Answer: y = 9x - 3

That's y=mx + b, the usual slope intercept form of a line with slope m and y intercept b.

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3 years ago

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