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3 years ago

Solves 1.4 divided by 0.2 using the diagram at the right. is her reasoning correct explain

Mathematics

2 answers:

Finger [1]3 years ago

4 0

Answer: 1.4/0.2= 7

Step-by-step explanation:

think of it this way

14 divided by 2 equals 7

1 and 4 tenths divided by 2 tenths equal 7

maxonik [38]3 years ago

3 0

Answer:

the answer should be 7 !

Step-by-step explanation:

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Need help with math bell ringer

balandron [24]

Answer:

y = 2

Step-by-step explanation:

Slope that passes through two points, (10, y) and (3, 4) = $m = \frac{y_2 - y_1}{x_2 - x_1}$ .

Where,

$(10, y) = (x_1, y_1)$

$(3, 4) = (x_2, y_2)$

m = -²/7

Plug in the values

$\frac{-2}{7} = \frac{4 - y}{3 - 10}$

$\frac{-2}{7} = \frac{4 - y}{-7}$

Cross multiply

$-2*-7 = 7(4 - y)$

$14 = 28 - 7y$

$7y = 28 - 14$

$7y = 14$

Divide both sides by 7

y = 2

3 0

3 years ago

What is the inverse of the function f(x) =<br> 1/9x+ 2?

hichkok12 [17]

Answer:

$f^{-1}(x) = 9x -18.$

Step-by-step explanation:

$y=f(x)=\dfrac 19 x +2\\\\\text{Replace x with y and then solve for y,}\\\\~~~~~~~x = \dfrac 19 y+2\\\\\implies 9x =y + 18~~~~~~~~~~~~~~~;[\text{Multiply both sides by 9}]\\ \\\implies y = 9x -18\\\\\implies f^{-1}(x) = 9x -18\\\\\text{Hence, the inverse of the given function is}~ f^{-1}(x) = 9x -18.$

4 0

2 years ago

Given 3x^2+x-4/x-1 what are the domain and range

Katarina [22]

Answer:

doman: x ≠ 1
range: y ≠ 7

Step-by-step explanation:

The domain is the horizontal extent of the graph, the set of x-values for which the function is defined. The range is the vertical extent of the graph, the set of y-values defined by the function.

<h3>Simplified</h3>

The given function is undefined where its denominator is zero, at x=1. Everywhere else, it can be simplified to ...

$\dfrac{3x^2+x-4}{x-1}=\dfrac{(x-1)(3x+4)}{(x-1)}=3x+4\quad x\ne 1$