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2 years ago

12

Solve the rational equation quantity 3 times x minus 5 end quantity divided by 7 equals four sevenths. A: f(n) = f(n − 1) ⋅ 0.3

+ 25, n > 0 B: f(n) = 100 − f(n − 1) ⋅ 0.3 + 25, n > 0 C: f(n) = f(n − 1) ⋅ 0.7 + 25, n > 0 D:f(n) = 100 − f(n − 1) ⋅ 0.7 + 25, n > 0

1 answer:

KengaRu [80]2 years ago

4 0

Answer:

2.8 < x -0

Step-by-step explanation:

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I need help plz someone

stich3 [128]

Answer:

5C 6D

Step-by-step explanation:

5, a^2 = b^2 + c^2

6,

A is wrong because two distinct lines intersect at 1 point only or 0 (they will never intersect when they are parallel)

B & C are wrong because lines contain infinite point

E is wrong because 2 parallel lines will never intersect, as the result, their common points = 0

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3 years ago

What number is a factor of 12,but not a multiple of 3

choli [55]

There are 3 numbers as such.
First lets list all the factors of 12
1,2,3,4,6,12
now lets see which are multiples of 3
3,6 and 12 are multiples of 3
therefore we are left with
1,2 and 4

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2 years ago

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Write an equation of the form y=mx for the pairs (-1,4) and (1,-4)

hram777 [196]

Y = mx
We just need to find the slope:

y2 - y1 / x2 -x1 = -4 - 4 / 1 - - 1 = -8/2 = -4/1 = -4

so: y = -4x

Hope that helps! :)

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2 years ago

Which is the graph of the equation y-1=2/3(x-3)

lisov135 [29]

Step-by-step explanation:

Multiply 2/3 by (x-3) to get 2/3x -3.

Then subtract -1 on the y side to the right side compair like terms.

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2 years ago

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Given the system of linear equations.

Degger [83]

Part(A):

To solve the system of Linear equations using Substitution:

$x+y=7 \\ 2x+y=5$

Consider the first equation, x+y=7 implies x=7-y

$\mathrm{Subsititute\:}x=7-y$

$2\left(7-y\right)+y=5$

$14-2y+y=5$

$14-y=5$

$\mathrm{Subtract\:}14\mathrm{\:from\:both\:sides}$

$14-y-14=5-14$

$-y=-9$

$\mathrm{Divide\:both\:sides\:by\:}-1$

$y=9$

$\mathrm{For\:}x=7-y$

$\mathrm{Subsititute\:}y=9$

$x=7-9=-2.$ $\mathrm{The\:solutions\:to\:the\:system\:of\:equationts\:are:}$

$y=9,\:x=-2$

PArt(B): Use a graph to verify your answer to the system:

Using Desmos graphing calculator, graph the two equations.

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2 years ago

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