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4 years ago

I just need #31 and #33 answered please.

Mathematics

1 answer:

sergiy2304 [10]4 years ago

5 0

<h2>31.f(x) ={3—x, x≤1</h2><h2> {2x, 1< x </h2><h2>= 3+1+2+1=7</h2><h2>= x+x+x =3x </h2><h2>= 3x+7=10x</h2><h2>= ×=30 </h2><h2>= ———</h2><h2> 10</h2><h2>= 3</h2><h2>now ,</h2><h2>3—x=3</h2><h2>x≤1=3×1=3</h2><h2>2x=1×3×1×3=9</h2><h2>1<x=9×3=27,,,,,,,, </h2><h2>how I have done do of all number </h2><h2>note:please understand and write </h2><h2 />

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AleksAgata [21]

Answer:

the cylinder can be written as

y² + z² = 19

x=x

y= R*cos θ

z= R*sin θ

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for 0≤θ≤2*π

Step-by-step explanation:

the cylinder can be described as a circumferences in planes parallel to the y-z plane , thus

y= R*cos θ

z= R*sin θ

where R= radius , and θ is the angle with respect to the y axis , or

y² + z² = R²

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thus the cylinder can be written as

y² + z² = 19

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3 years ago

Read 2 more answers

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Answer:

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Step-by-step explanation:

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2 years ago

a train goes forward at a speed of 1m/s for 20 sec then it stops and goes backward at a speed of 0.5m/s for 4 sec after both mov

Basile [38]

A.) 18 m
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3 years ago

6: Abby is making a decoration. When folded, the decoration is a triangular pyramid made of four congruent equilateral triangles

NeTakaya

Answer:

85 square inches

Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo

My answer:

From the question, four congruent equilateral triangles with the following information:

The height: 6.06 inches

The base : 7 inches

=> The area of the quilateral triangle is:

=1/2*the base*the height

= 1/2*60.6*7

= 21.21 square inches

=> the surface area of Abby's decoration is:

= 4 * The area of the quilateral triangle

= 4*21.21

= 84.84 square inches

≈ 85 square inches

Hope it will find you well.

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4 years ago

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ki77a [65]

D - 6.3

Plug in 4.26 for 'd':

4.26 - 6.3 = -2.04

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4 years ago