3 years ago

Can someone please have a look and help ? <3 (graph it please) 20pts!

Mathematics

2 answers:

Elanso [62]3 years ago

6 0

$(x,\ y)\to(x,\ -y)\\\\(-5,\ -2)\to(-5,\ -(-2))=(-5,\ 2)\\\\(4,\ -3)\to(4,\ -(-3))=(4,\ 3)\\\\(2,\ 7)\to(2,\ -7)$

abruzzese [7]3 years ago

5 0

The transformation negates the y-coordinate, so reflects a point across they x-axis.

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Find the length of RS with endpoints R(4,5) and S(-1, – 4).

Artist 52 [7]

Answer:

$d=\sqrt{106}$

Step-by-step explanation:

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$d=\sqrt{(-1-4)^2+(-4-5)^2}$

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3 years ago

Let f(x) = cos(x) + 2x. Where does f have critical points?

adell [148]

Answer:

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Step-by-step explanation:

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$f'(x)=-\sin(x)+2$

Since this will never be undefined, solve for its zeros:

$0=-\sin(x)+2$

Hence:

$\displaystyle \sin(x)=2$

Recall that the value of sine is always between -1 and 1.

Thus, no real solutions exist.

Therefore, f has no critical points.

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3 years ago

You go to the bakery with $20. You buy a small cake for 12.75. cookies cost .75 each. How many cookies can you buy ?

irakobra [83]

$20 - $12.75 = $7.25

$7.25 / $0.75 = 9.6

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Hopes this Helps!!

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Read 2 more answers

Anna is selling tickets to her tennis tournament. An adult ticket costs $20 and a student ticket costs $16. Anna collects $1020

scZoUnD [109]

Answer:

Step-by-step explanation:

The other choices are wrong.

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4 years ago

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$x^2=10\\x=\pm\sqrt{10}$

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3 years ago