3 years ago

PLEASE HELP QUICKLY

Mathematics

2 answers:

mina [271]3 years ago

4 0

Answer:

The answer is graph D.

Your welcome:))))

meriva3 years ago

3 0

Answer:

Step-by-step explanation:

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Y2 – x2 = 16 please help

Igoryamba

-8
Because x - y = -8

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3 years ago

Y = −1 / 4 (x + 4) 2 −1 on a coordinate plane using its vertex, focus, and directrix.

trasher [3.6K]

Answer:

Hello,

Step-by-step explanation:

do I remind you of the formula :

where (a,b) is the vertex and y=k the directrix

$y=\dfrac{(x-a)^2}{2(b-k)} +\dfrac{b+k}{2} \\\\\\y=-\dfrac{(x+4)^2}{4} -1 \\\\Using\ identification:\\a=-4\\2(b-k)=-4\\b+k=-2\\\\\left\{\begin{array}{ccc}b-k&=&-2\\b+k&=&-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}2b&=&-4\\2k&=&0\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}b&=&-2\\k&=&0\\\end{array}\right.\\$

Focus=(-4,-2)

Directrix: y=0

Vertex=(-4,-1)

6 0

3 years ago

5/1 + 1/7 this is how the problem is set up do I flip the 5/1 if so what method...

ziro4ka [17]

Use the fraction addition formula. $\frac{a}{b} + \frac{c}{d}= \frac{(ad+bc)}{bd}$

Substitute the numbers into the formula.
a=5, b=1, c=1, d=7

$\frac{5}{1}+ \frac{1}{7} = \frac{12}{35}$

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3 years ago

(3x−2<img src="https://tex.z-dn.net/?f=%29%5E%7B2%7D" id="TexFormula1" title=")^{2}" alt=")^{2}" align="absmiddle" class="latex-

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Infinite solutions (extra characters)

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3 years ago

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Can somebody solve this for me please?

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Answer:

Step-by-step explanation:

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3 years ago