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34kurt
3 years ago
15

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:

Distance Formula: d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Simply plug in your 2 coordinates into the distance formula to find distance <em>d</em>:

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

d=\sqrt{(-5)^2+(-9)^2}

d=\sqrt{25+81}

d=\sqrt{106}

7 0
3 years ago
Let f(x) = cos(x) + 2x.<br> Where does f have critical points?
adell [148]

Answer:

<em>f</em> has no critical points.

Step-by-step explanation:

We are given:

f(x)=\cos(x)+2x

A function has critical points whenever its derivative equals 0 or is undefined.

Differentiate the function:

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, <em>f</em> has no critical points.

6 0
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

So you can buy C) 9.6 cookies.

Hopes this Helps!!

5 0
3 years ago
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:

D

Step-by-step explanation:

The other choices are wrong.

3 0
4 years ago
05 lc) if x2 = 10, what is the value of x? ±square root of 10 ±square root of 20 ±5 ±20
postnew [5]
x^2=10\\x=\pm\sqrt{10}
7 0
3 years ago
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