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kozerog [31]
3 years ago
8

A company manufactures aluminum mailboxes in the shape of a box with a half-cylinder top. The company will make 1384 mailboxes t

his week. If each mailbox
has dimensions as shown in the figure below, how many square meters of aluminum will be needed to make these mailboxes? In your calculations, use the
value 3.14 for pi, and round up your answer to the next square meter.
2
m
?
0.4 m
0.2 m
0.55 m. NEED THIS URGENT THANKS
Mathematics
1 answer:
fomenos3 years ago
8 0

Answer: subject?

Step-by-step explanation:

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Use the graph below to answer the following questions.​
Maru [420]

Answer:

  • a) 3
  • b) x = {-3, -2, 2}

Step-by-step explanation:

Refer to attached for points

a) f(-1) = 3 as per graph

b) f(x) = 6

We add horizontal line through point y=6 to find intersections with the graph

Take x-values of those points. The points are x = -3, x = -2, x = 2

3 0
4 years ago
What is the quotient 5,416 and 8
Naya [18.7K]

Answer:

677

Step-by-step explanation: I divided?

7 0
3 years ago
In a sample of 75 randomly selected students at school, 32 are female. There are 1, 371 students in the school. Using these resu
netineya [11]
C: 585, You divide 1371 by 75, and multiply that by 32, then round up.  1371 is proportional to 75 and x is proportional to 32. 
7 0
3 years ago
1. Find the exact value by using a half-angle identity. (1 point)
amm1812
<span>1. Find the exact value by using a half-angle identity. 
sin 22.5°
</span>

Using the half angle formula you get:
<span><span><span><span>sin2(</span>θ)=12<span>[1−<span>cos(2</span>θ)]</span></span>
</span>if </span><span><span>θ=22.5°</span> then </span><span><span><span>2θ=45°</span>
</span>so you get:
</span><span><span><span>sin2(22.5°)</span>=12<span>[1−<span>cos(45°)</span>]</span></span>
</span><span><span><span><span><span>sin2(22.5°)</span>=12[</span><span>1−<span>√2/2]</span><span>=<span><span>2−√2</span>4</span>
</span></span></span>and square root both sides:
</span><span><span><span><span><span>sin(22.5°)</span>=±</span><span>√<span><span>2−√2</span>4</span>=±0.382</span></span>
</span>so </span></span>

<span> sin(22.5°)=0.382the answer is the letter D) one half times the square root of quantity two minus square root of two

</span>

<span>2. Verify the identity.

cot x minus pi divided by two. </span>= -tan x

Cot(x-pi/2)=-tan(x)

 sin(A − B) = sin A cos B − cos A sin B

sin(x – pi/2) = sin x cos (pi/2) − cos x sin (pi/2)=-cosx

 

cos(A − B) = cos A cos B − sin A sin B

cos(x− pi/2) = cos x cos pi/2 − sin x sin pi/2=-sinx

 Cot(x-pi/2)=cos(x-pi/2)/sin(x-pi/2)

<span>= (-sinx)/(-cosx)=-tanx--------------ok</span>

4 0
3 years ago
The lesson is 19.2 Angles in inscribed Quadrilaterals
alexdok [17]

Answer:

m<R=44.9,m<S=56.9,m<T=44.9,m<U= 32.9.

Step-by-step explanation:

When two chords are equal then the measure of the arcs are equal.

Chord RU= Chord UT

Or , m arc RU= m arc UT,

3z-4=x+2z+7   Or             z=x+11

Chord RS=Chord ST ,

m arc RS=m arc ST=3x+5

Sum of m arc in a circle =360 degrees.

Or ,

3x+5+3x+5+3z-4+x+2z+7=360

7x+5z+13=360

Substituting z=x+11

7x+5(x+11)+13=360

7x+5x+55+13=360

12x+68=360

12x=292,x=24.3

z=x+11=11+24.3=34.3

m arc RU=marc UT= 3z-4=3(24.3)-4=69

m arc RS =marc ST= 3x+5=3(24..3)+5=77.9

m<R= (marc UT+ m  arc ST)÷2

m<R=(69+77.9)÷2=73.45

m<S= (m arc RU+m arc UT)÷2

m<S= (69+69)÷2=69

m<T=(m arc RU+m arc RS)÷2=73.45

m<U=(m arc RS+m arc m arc ST)÷2=77.9








4 0
4 years ago
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