3 years ago

Please help me with this

Mathematics

1 answer:

notka56 [123]3 years ago

3 0

Answer:

D. complementarly

Step-by-step explanation:

Complementary angles add to 90°

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Lim as x--> 0 of (xcscx) is...

Serjik [45]

We know that:

limx→0 sin(x)/x = 1.
and
cscx = 1/sinx
so,
limx→0 x/sinx = 1

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4 years ago

Factor the algebraic expression 18a + 15=

Feliz [49]

18a+15

making a subject of formular

a=18-15

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3 years ago

A cylindrical water tank has a diameter of 9 feet and a height of 16 feet. Each can of paint covers 50 square feet. What is the

iVinArrow [24]

Answer:

12 cans

Step-by-step explanation:

The area of the outside of the tank:

radio = half diameter = 4.5 ft.

base: $A_{b} =\pi r^{2} =\pi (4.5)^{2} =20.25\pi$

Top: = base $=20.25\pi$

cylinder: $2\pi rh=2\pi (4.5)(16)=144\pi$

Total area to paint: $144\pi +2(20.25\pi) =184.5\pi =579.6sq.ft.$

Number of cans of paint:

$c=\frac{579.6}{50} =11.59=12$

Hope this helps

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2 years ago

2. Find the rate of change shown in the table

seraphim [82]

Answer:

-6x is the slope

Step-by-step explanation:

1,-3

2,-9

-9+3 is -6

2-1 is 1

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3 years ago

What is the value of x? A:3.6 B:5.8 C:11.5 D:14.3

nignag [31]

I is C because you use the pythag theorem

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3 years ago