A certain number is multiplied by 4 and then 7 is added to the result then final answer is 39 find the number

Mathematics

1 answer:

Len [333]3 years ago

7 0

4x + 7 = 39

-7 -7

4x = 32

/4 /4

x = 8

The answer is 8.

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The question is in the picture please help fast

Marrrta [24]

Answer:

y = 4x - 57

Step-by-step explanation:

( $x_{1}$ , $y_{1}$ )

( $x_{2}$ , $y_{2}$ )

m = $\frac{y_{2} -y_{1} }{x_{2} -x_{1} }$

y - $y_{1}$ = m ( x - $x_{1}$ )

~~~~~~~~~~~~~~~

( 15 , 3 )

( 19 , 19 )

m = $\frac{19-3}{19-15}$ = 4

y - 3 = 4 ( x - 15 )

y = 4x - 57

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Kobotan [32]

Answer:

Step-by-step explanation:

There are no categorical antonyms for eleven. The numeral eleven is defined as: The cardinal number occurring after ten and before twelve.

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Write the equation of a piecewise function with a jump discontinuity at x =3. Then, determine which step of the 3-step test for

seraphim [82]

Answer:

Here's a possible example:

Step-by-step explanation:

$f(x) =\begin{cases} x & \quad x < 3\\x+3 & \quad x \geq 3\\\end{cases}$

Each piece is linear, so the pieces are continuous by themselves.

We need consider only the point at which the pieces meet (x = 3).

$\displaystyle \lim_{x \longrightarrow 3^{-}} f(x) = \lim_{x \longrightarrow 3^{-}} x = 3\\\\\displaystyle \lim_{x \longrightarrow 3^{+}} f(x) = \lim_{x \longrightarrow 3^{+}} x+3 = 6\\\\f(3) = x + 3 = 6\\\\\displaystyle \lim_{x \longrightarrow 3^{-}} f(x) \neq f(3)$