3 years ago

Please help true or false

Mathematics

2 answers:

alexdok [17]3 years ago

6 0

I think it’s false since the graph is clearly a hyperbola and a hyperbola is not a function.

sertanlavr [38]3 years ago

3 0

It’s is jdhdbdjdbjdbdjbjfbfTrue

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279 butterflies if I’m correct. 236+128=364 and 364-85 is 279.

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3 years ago

WHAT IS 2x^2 - 70 = 4x ?!? this is for solving quadratic equations by factoring ! i don't understand it : (

Alekssandra [29.7K]

Answer: ☁️ x = 7,-5. ☁️

Hope it helps.

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3 years ago

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aleksley [76]

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4 years ago

Math class, last chance to take it!

aksik [14]

Answer:

$\sf x=-4$ $\sf \ and$ $\sf y=45$

Step-by-step explanation:

given:

$\sf{-\frac{1}{2} x+\frac{1}{5} y=11}$

$\sf{3 x+\frac{1}{4} y=-\frac{3}{4} }$

make x subject:

$\sf{-\frac{1}{2} x+\frac{1}{5} y=11}$

$\sf{-\frac{1}{2} x =11-\frac{1}{5}y}$

$\sf{- x =22-\frac{2}{5}y}$

$x =-22+\frac{2}{5}y}$

solve using substitution method:

$\sf{3 x+\frac{1}{4} y=-\frac{3}{4} }$

$\sf{3 (-22+\frac{2}{5}y) +\frac{1}{4} y=-\frac{3}{4} }$

$\sf-66 +\frac{6}{5} y+\frac{1}{4} y = -\frac{3}{4}$

$\sf 1.45y = 65.25$

$\sf y=45$

then x will be:

$x =-22+\frac{2}{5}y}$

$x =-22+\frac{2}{5}(45)}$

$\sf x=-4$

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2 years ago

Caroline bought 20 shares of stock at 10 ½, and after 10 months the value of the stocks was 11 ¼. If Caroline were to sell all h

OleMash [197]

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20 shares at 11 1/4 (or 11.25) = 20 * 11.25 = 225

so the profit made would be : 225 - 210 = $ 15 <==

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3 years ago