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3 years ago

2) if -2(3y 5)=-4, find the value of 5y

Mathematics

1 answer:

Radda [10]3 years ago

4 0

Distribute the ( ).....get -6y -10= -4 Add 10 on both sides, get -6y=6. Divide by-6, get y of -1

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Which of the following linear equations describes that relationship?

JulsSmile [24]

Answer:

D. f(x) = 4x - 3

Step-by-step explanation:

Use two pairs of points to work out the equation:

(1, 1) and (2, 5)

Find the slope:

m = (5 - 1) / (2 - 1) = 4/1 = 4

Find the y-intercept:

1 = 4*1 + b
b = 1 - 4
b = - 3

The line is:

f(x) = 4x - 3

Correct choice is D

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2 years ago

It took a car 4 days to travel 4717 miles. What was this car’s average speed, in miles per hour? (Round to the nearest per hour)

KiRa [710]

Answer:

51 MPH

Step-by-step explanation:

4 days is 96 hours, all you have to do is 4717/90

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2 years ago

Graph the linear equation find three points that solves the equation 2y=5x+11

Julli [10]

Answer:

<h3>Attachment</h3>

Step-by-step explanation:

Convert to the slope-intercept form (y = mx + b):

$2y=5x+11$ divide both sides by 2

$\dfrac{2y}{2}=\dfrac{5x}{2}+\dfrac{11}{2}\\\\y=\dfrac{5}{2}x+\dfrac{11}{2}$

We choose any three x values and calculate the y value:

for x = -1

$y=\dfrac{5}{2}(-1)+\dfrac{11}{2}=-\dfrac{5}{2}+\dfrac{11}{2}=\dfrac{6}{2}=3\to A(-1,\ 3)$

for x = 1

$y=\dfrac{5}{2}(1)+\dfrac{11}{2}=\dfrac{5}{2}+\dfrac{11}{2}=\dfrac{16}{2}=8\to B(1,\ 8)$

for x = -3

$y=\dfrac{5}{2}(-3)+\dfrac{11}{2}=-\dfrac{15}{2}+\dfrac{11}{2}=-\dfrac{4}{2}=-2\to C(-3,\ -2)$

Mark the points on the coordinate plane and draw a line through the given points.

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=x%2B0.08%2B3.21%5Cleq%2060" id="TexFormula1" title="x+0.08+3.21\leq 60" alt="x+0.08+3.21\leq 6

Rashid [163]

There is no solution to this, due to X can be equal anything. Hope this helps!

8 0

3 years ago

Which algebraic expression is a polynomial? 4x2 – 3x + StartFraction 2 Over x EndFraction –6x3 + x2 – StartRoot 5 EndRoot 8x2 +

rusak2 [61]

Answer:

The Answer is B

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers