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3 years ago

Find the result when you subtract (5y+9z)to(4y-7z)A. -y-16zB.-y+16zC.9y+2zD.9y-2z

Mathematics

1 answer:

natali 33 [55]3 years ago

6 0

A if it is (4y-7z) - (5y+9z).

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Find the volume of this figure to the nearest whole number. Use 3.14 for pi.

sukhopar [10]

Answer:

≈ 1800 mm³

Step-by-step explanation:

Volume of the figure above will be given by the formula

Cross section area × length

In this case;

Cross section area will be;

Area of the square + area of the two semi circles

12× 12 + 2(3.14 × 6 ×6/2)

= 144 + 3.14 ×36

= 257.04 mm²

Volume = Cross section area × Length

= 257.04 × 7

= 1799.28 mm³

 ≈ 1800 mm³

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3 years ago

A company sells tents in two styles, shown below. The sides and floor of each tent are made of nylon. Which tent requires less n

BartSMP [9]

Answer: Tunnel tent.

Step-by-step explanation:

The tent which has the minimum area requires less nylon to manufacture,

Since, the area of Pup tent = Area of 3 square each having side 8 ft + Area of 2 equilateral triangle having side 8 ft

= $3 \times ( 8^2 ) + 2\times \frac{64\sqrt{ 3} }{4}$

= $192+ 2\times \frac{64\sqrt{ 3} }{4}$

= $192+ 32\sqrt{ 3}$

= $247.425625842\approx 247.43\text { square ft}$

Now, the area of tunnel tent = Area of square having side 8 ft + total Area of half cylinder having radius 4 ft and height 8 ft

= $8^2 + \frac{1}{2} [ 2\pi\times 4(4+8)]$

= $64 + \pi\times 48$

= $64 + 3.14\times 48$

= $214.72\text { square ft}$

Since, 214.72 < 247.43

Thus, Tunnel tent requires less nylon to manufacture.

4 0

3 years ago

A number is randomly selected from {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. A is represented by the event that the number picked is grea

fomenos

P(A) = P(8) + P(9) + P(10) = 3/10 so P(A complement) = 1 - P(A) = 1 - 3/10 = 7/10 - D

7 0

3 years ago

Read 2 more answers

Please help me I'm stuck on this one

Colt1911 [192]

Ok i should know this i had the same test sum goes to 0 5/8 goes to 5/8 and m goes to -5/8

hope this helps!

6 0

3 years ago

Simplify: (–2x+y)(-58 y) O 10x10, 10xv2 10xy 10x10 ,

alekssr [168]

Answer:

Choice C

Step-by-step explanation:

$(-2x^2y)(-5x^5y^3)=\\\\(-2)(-5)\times (x^2)(x^5)\times (y)(y^3)=\\\\10x^7y^4$

Hope this helps!

8 0

3 years ago

Find the result when you subtract (5y+9z)to(4y-7z)A. -y-16zB.-y+16zC.9y+2zD.9y-2z​

Find the result when you subtract (5y+9z)to(4y-7z)A. -y-16zB.-y+16zC.9y+2zD.9y-2z