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2 years ago

HELP PLZ HELP ASAP ASAP

Mathematics

2 answers:

Sergio039 [100]2 years ago

5 0

Answer:

Step-by-step explanation:

BARSIC [14]2 years ago

5 0

Answer:

I think true

Step-by-step explanation:

plz make me brainliest

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Which of the following is and example of a random event? A. A mailman delivering the mail around 11 a.m. each day B. The day a n

Ronch [10]

Only C & D are examples of Random Event

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3 years ago

What is the measure or ENV

Vlad [161]

First we need to get x
<RNA = <ENV [v.o.a]
8x+12=5x+57
8x-5x=57-12
3x=45
x=15

<ENV= (5×15+57)
<ENV =132
the answer is D

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2 years ago

Read 2 more answers

Hiiii.. please help me with this limit question

Alenkasestr [34]

Answer:

Step-by-step explanation:

Solving without L'Hopital's rule:

lim(x→0) sin(π cos²x) / x²

Use Pythagorean identity:

lim(x→0) sin(π (1 − sin²x)) / x²

lim(x→0) sin(π − π sin²x) / x²

Use angle difference formula:

lim(x→0) [ sin(π) cos(-π sin²x) − cos(π) sin(-π sin²x) ] / x²

lim(x→0) -sin(-π sin²x) / x²

Use angle reflection formula:

lim(x→0) sin(π sin²x) / x²

Now we multiply by π sin²x / π sin²x.

lim(x→0) [ sin(π sin²x) / x² ] (π sin²x / π sin²x)

lim(x→0) [ sin(π sin²x) / π sin²x] (π sin²x / x²)

lim(x→0) [ sin(π sin²x) / π sin²x] lim(x→0) (π sin²x / x²)

π lim(x→0) [ sin(π sin²x) / π sin²x] [lim(x→0) (sin x / x)]²

Use identity lim(u→0) (sin u / u) = 1.

π (1) (1)²

Solving with L'Hopital's rule:

If we plug in x = 0, the limit evaluates to 0/0. So using L'Hopital's rule:

lim(x→0) [ cos(π cos²x) (-2π cos x sin x) ] / 2x

lim(x→0) [ -π cos(π cos²x) sin(2x) ] / 2x

-π/2 lim(x→0) [ cos(π cos²x) sin(2x) ] / x

Again, the limit evaluates to 0/0. So using L'Hopital's rule one more time:

-π/2 lim(x→0) [ cos(π cos²x) (2 cos(2x)) + (-sin(π cos²x) (-2π cos x sin x)) sin(2x) ] / 1

-π/2 lim(x→0) [ 2 cos(π cos²x) cos(2x) + π sin(π cos²x) sin²(2x) ]

-π/2 (-2)

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2 years ago

A stack of books is 5 feet 1 inch high. How high is it in inches?

zhannawk [14.2K]

Answer:

61 Inches

Step-by-step explanation:

<em>A foot is 12 inches. </em>

1. Multiply 12 by 5.

$12*5=60$

2. Add the extra inch.

$60+1=61$

<em>The stack of books is 61 inches high.</em>

3 0

2 years ago

Find the surface area of the attached figure and round your answer to the nearest tenth, if necessary.

mariarad [96]

Answer:

$S.A = 246.6 in^2$

Step-by-step explanation:

The figure given above is a square pyramid, having a square base and 4 triangular faces on the sides that are of the same dimensions.

Surface area of the square pyramid is given as: $B.A + \frac{1}{2}*P*L$

Where,

B.A = Base Area of the pyramid = 9*9 = 81 in²

P = perimeter of the base = 4(9) = 36 in

L = slant height of pyramid = 9.2 in

Plug in the values into the given formula to find the surface area

$S.A = 81 + \frac{1}{2}*36*9.2$

$= 81 + 18*9.2$

$= 81 + 165.6$

$S.A = 246.6 in^2$

8 0

2 years ago