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3 years ago

“z varies jointly as x and y”

Mathematics

2 answers:

ziro4ka [17]3 years ago

8 0

Answer:

1. z=kxy

2. 36=k(3)(2)

k=6 is the answer

3. 2=k(4)(3)

k= -6 is the answer

z=kxy z=(-6)(8)(6)

z= -288 is the answer

you always remember that the formula we should use is z=kxy

faltersainse [42]3 years ago

6 0

Answer:

urdykdgjjdtdgdmgkgdzkyjt

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3 years ago

What is the intercept??

Lyrx [107]

Answer:

For the first part the intercept is -1 and the second part the anwser is -5

Step-by-step explanation:

This is becuase when dealing with slopes and the slope intercept form (y=mx+b) whatever is B in the said equation your are dealing with is the y intercept

5 0

3 years ago

Help me please. 30 points :)

Nataly [62]

$\frac{(5 \: - \: 8x)}{( \sqrt{5 \: - \: 8x} )} \: = \: \sqrt{5 \: - \: 8x}$
For the result to be Real,
$5 \: - \: 8x \: \geqslant \: 0$
$8x \: \leqslant \: 5$
$x \: \leqslant \: \frac{5}{8}$
$( \frac{(5 - 8x)}{( \sqrt{5 - 8x} )} ) \: \times \: (\frac{ \sqrt{5 - 8x} }{ \sqrt{5 - 8x} } ) \: = \: \frac{ {(5 \: - \: 8x)}^{ \frac{3}{2} } }{(5 \: - \: 8x)}$
Hence,
$\frac{{(5 \: - \: 8x)}^{ \frac{3}{2} } }{(5 \: - \: 8x)}$
is the required form.

3 0

3 years ago

What is k(-4)?<br><br> K(t)=13t-2

Jobisdone [24]

Answer:

-54

Step-by-step explanation:

plug (-4) in for t and solve for k(t)

3 0

3 years ago

G(x) = -10x – 8<br> a function

wlad13 [49]

Answer:

yes that is a function and not an equation

7 0

3 years ago