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3 years ago

HELP WITH ALL PLSSSSSSSSS

Mathematics

2 answers:

igor_vitrenko [27]3 years ago

6 0

Step-by-step explanation:

hold on I'm. going to help you with this

svlad2 [7]3 years ago

5 0

I need answers I csnt help you my brotha, would appreciate if you could give me a thumbs up

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Solve Y/5.6 = 12 for y

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(Y/5.6=12)*5.6
Y=12*5.6
Y=67.2 is the correct answer

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Which mapping diagram does NOT represent a function from x → y?

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Multiply each set of numbers and match it with it’s product

Fynjy0 [20]

Answer:

1. $1. (\frac{5}{16}) (-2) (-4) (\frac{-4}{5})= -2 \\2. (2\dfrac{3}{5}) (\frac{7}{9})=(\frac{91}{45})\\3. (\frac{2}{3})(-4)(9)= -24\\4. (\frac{-3}{4}) (\frac{7}{8})=(\frac{-21}{32})$

Step-by-step explanation:

These are simple multiplication questions of fractions. We multiply numerator with numerators and denominators with denominators. If numerator and denominator is both divisible by same number we can divide them for simplification.

1. $(\frac{5}{16}) (-2) (-4) (\frac{-4}{5})$

$=(\frac{-10}{16}) (-4) (\frac{-4}{5})\\=(\frac{40}{16}) (\frac{-4}{5})\\=(\frac{-160}{80}) \\dividing\,\, numerator\,\, and\,\, denominator\,\, by\,\, 80\,\,\\= -2$

2. $(2\dfrac{3}{5}) (\frac{7}{9})$

Converting mixed form into fraction form,

$=(\frac{13}{5})(\frac{7}{9})$

Multiplying numerators with each other and denominators with each other

$=(\frac{13*7}{5*9})\\=(\frac{91}{45})$

3. $(\frac{2}{3})(-4)(9)$

Multiplying these terms with each other:

$=(\frac{2*-4}{3})(9)\\=(\frac{-8}{3})(9)\\=(\frac{-8*9}{3})\\=(\frac{-72}{3})\\$

Dividing numerator and denominator with 3

$=-24$

$4. (\frac{-3}{4}) (\frac{7}{8})\\=(\frac{-3}{4}) (\frac{7}{8})\\=(\frac{-3*7}{4*8})\\=(\frac{-21}{32})$

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3 years ago

Which lines have slope -4/5 and contains point (0,1)?

miv72 [106K]

ANSWER

The required line is BC

EXPLANATION

We want to find the line that passes through
$(0,1)$

and has slope
$m = - \frac{4}{5}$

Since the x-value of the given point is zero, the point

$(0,1)$

is the y-intercept.

From the above graph, the two lines that contains
$(0,1)$

are line CE and line BC.

Since, the slope

$m = - \frac{4}{5}$
is negative, line BC is the required line because it is sloping backwards.

We can confirm this by using the point,

$B(-5,5)$

and

$C(0,1)$

to find the slope and obtain

$m = \frac{5 - 1}{ - 5 - 0} = - \frac{4}{5}$

3 0

3 years ago