3 years ago

A parabolic mirror to be used in a

Mathematics

1 answer:

jok3333 [9.3K]3 years ago

8 0

I’m sorry if I’m wrong I’d stay safe and let someone anwser tell u but I think 20

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Find the slope of a line that passes through the points (2,-1) and (4,7)

MrRa [10]

Answer:

if I did it correctly then it is y= 1/4x-9/4

Step-by-step explanation:

5 0

2 years ago

Find the area of the figure.

givi [52]

these are just two semi-circles, one with a diameter of 22 and the other with a diameter of 30 - 22, or 8, and therefore their radius are 11 and 4 respectively.

$\bf \textit{area of a semi-circle}\\\\ A=\cfrac{\pi r^2}{2}~~,~~ \stackrel{r=11}{A=\cfrac{\pi 11^2}{2}}\implies A=\cfrac{121\pi }{2}~~,~~ \stackrel{r=4}{A=\cfrac{\pi 4^2}{2}}\implies A=8\pi \\\\ -------------------------------\\\\ \stackrel{\textit{total area of the figure}}{\cfrac{121\pi }{2}+8\pi }\implies \cfrac{121\pi +16\pi }{2}\implies \cfrac{137\pi }{2}$

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3 years ago

anonymous anonymous 5 years ago At your favorite taco place you can choose flour or corn tortilla mild salsa medium salsa spicy

gavmur [86]

Ok, I love doing these because they're very simple.
F=flour C=corn
m=mild d=medium s=spicy p=pico
c=cheddar j=monterey jack

Fmc
Fmj
Fdc
Fdj
Fsc
Fsj
Fpc
Fpj
8 Flour, which means 8 corn. So that means there are 16 different tacos.

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3 years ago

Line segment AB has endpoints A(0, 3) and B(2, 2). What is the midpoint of

natali 33 [55]

Answer:

The options doesn't match or the question is wrong but the answer is (1,2.5)

Step-by-step explanation:

$x_{m}=\frac{0+2}{2}=1\\y_{m}=\frac{3+2}{2}=2.5$