Can someone please help me I need it quick please . Just need the answer please

Mathematics

1 answer:

Triss [41]3 years ago

8 0

Answer:

198 km

Step-by-step explanation:

81/9=9

9*22=198

You might be interested in

Find the total surface area of this cone.

denpristay [2]

Answer:

200π cm^2

Step-by-step explanation:

Sb = 8^2 π = 64π cm^2

a = sqrt2 [8^2 + 15^2] = sqrt2 [64 + 225] = sqrt (289) = 17 cm

Sl = 8x17xπ = 136 π cm^2

SA = 136π + 64π =200π cm^2

6 0

3 years ago

PLEASE HELP which of the following identities? Check all that apply

alisha [4.7K]

$\sin(x - \pi) = \sin(x) \cos(\pi) - sin(\pi) \cos(x)$
via the angle sum formula of sin
$since \: cos(\pi) = - 1 \: and \: sin(\pi) = 0 \: then \\ sin(x - \pi) = - sin(x) \: which \: proves \: the \: first \: choice$

$\cos(x + y) + cos(x - y) = 2 \cos(x) \cos(y) =\:cos(x + y) + cos(x - y)=cos(x) cos(y)-sin(x)sin(y) +cos(x)cos(y)+sin(x)sin(y)=2cos(x)cos(y)$
which proves the second choice
the third choice is wrong since for x=0,y=0 it will show that 2=1 which is incorrect
for the fourth one you can do some thing similar to choice one just expand the sum formula of sin and that should be true too
so
the first , the second and the fourth are all true

5 0

3 years ago

Read 2 more answers

Find the mode for the given data set. A.) 6 B.) 34 C.) 37

Natasha2012 [34]

Answer:

its b 34

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the verbal expression for 7 to the third power