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2 years ago

2/3x + 7 = -1/5x + 3

Mathematics

1 answer:

EastWind [94]2 years ago

8 0

if there is any doubt leave a comment

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A line passes through the point. (4, -7) and has a slope of 5/2

blagie [28]

t p = through point

s = slope

$y - y(t \: p) = (s) \times ( \: x - x(t \: p) \: ) \\$

$y - ( - 7) = \frac{5}{2} \times (x - 4) \\$

$y + 7 = \frac{5}{2} \times (x - 4) \\$

$y + 7 = \frac{5}{2}x - \frac{5 \times 4}{2} \\$

$y +7 = \frac{5}{2}x - \frac{20}{2} \\$

Subtract both sides -7

$y = \frac{5}{2}x - 10 - 7 \\$

$y = \frac{5}{2}x - 17 \\$

And we're done....

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3 years ago

Part

irina [24]

The last term is 63 so 3 might be a zero of the function;-

f(3) = 27 - 7*9 - 3*9 +63 = 27 - 63 - 27 + 63 = 0 so 3 is a zero and

therefore (x - 3) is a factor of the volume function.

Long division of the expression by x - 3 gives the quotient:-

x^2 + 4x - 21

Factoring this:-

= ( x + 7)(x - 3)

So the dimensions of the box are, x-3, x-3 and x+7 answer.

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3 years ago

Check all that apply.

Aneli [31]

Answer:

i believe the it is B,C,D

Step-by-step explanation:

i'm sorry if it is wrong

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3 years ago

The quotient of 11 and the difference of 13 and a number

vesna_86 [32]

Answer:

( 13 - x ) / 11

~Hope this helps

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4 years ago

The solution to -6+1/4w=-4

Svetllana [295]

So firstly, add both sides by 6: $\frac{1}{4}w=2$

Next, multiply both sides by 4, and your answer will be $w=8$

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3 years ago

Read 2 more answers