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1 year ago

Help am i wrong im not sure

Mathematics

1 answer:

Alexxandr [17]1 year ago

6 0

Answer:

y=(x+5)²-3.

Step-by-step explanation:

1) the coordinates of the vertex are (-5;-3), it means (x+5)², not (x-5)²;

2) the vertex of the given graph is in bottom side, it means no minus before the '(x+5)';

3) according the items 1 and 2 and the given answers, the correct answer is y=(x+5)²-3.

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Need help with this.

sweet [91]

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Let t as y² + 5y .

${y}^{2} + 5y = t$

Rewrite the equation :

$t - \frac{36}{t} = 0 \\$

Multiply sides by t

$t \times (t - \frac{36}{t} ) = t \times 0 \\$

${t}^{2} - 36 = 0$

Add sides 36

${t}^{2} - 36 + 36 = 0 + 36$

${t}^{2} = 36$

$t = ± \: 6$

_________________________________

So :

${y}^{2} + 5y = 6$

Subtract sides 6

${y}^{2} + 5y - 6 = 6 - 6$

${y}^{2} + 5y - 6 = 0$

$(y + 6)(y - 1) = 0$

$y = - 6 \: \: or \: \: y = 1$

##############################

${y}^{2} +5y = - 6$

$No \: \: solution$

_________________________________

Thus (( y = 1 )) and (( y = - 6 )) are the roots of the equation .

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2 years ago

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coldgirl [10]

Answer:

Step-by-step explanation:

$2(\frac{7\times 6}{2})+3(13.1\times 7)$

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Answer:

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Good luck on your quiz homework etc

Source of answer: https://bigideasmathanswer.com/big-ideas-math-answers-grade-6-chapter-7/

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