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Sunny_sXe [5.5K]
2 years ago
8

Please help me someone plz I really need help I would appreciate it if someone would reach out 2 me and try 2 help​

Mathematics
1 answer:
serious [3.7K]2 years ago
8 0

Answer:

Purple Cylinder

Step-by-step explanation:

You are given the equation for the volume of a cylinder, which is: r^2h\pi, where r is the radius of the cylinder and h is the height.

We are given both the height and radius of each cylinder in the question, therefore we can work out the volume of each of them.

Purple Cylinder:

Radius given = 2

Height given = 2

V=(2)^2(2)\pi =(4)(2)\pi =8\pi, so the volume of the purple cylinder is 8\pi.

Green Cylinder:

Radius given = 1

Height given = 6

V=(1)^2(6)\pi =(1)(6)\pi =6\pi, so the volume of the green cylinder is 6\pi.

Now let's compare the volumes: 8\pi >6\pi. 8\pi is larger than 6\pi so the volume of the purple cylinder is greater than the volume of the green cylinder.

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What is the length of the unknown leg
likoan [24]

Answer:

6 mm

Step-by-step explanation:

Use the Pythagorean Theorem to solve for the unknown leg

a^{2} +b^{2}=c^{2}

Since we need to solve for a, we will manipulate the equation in terms of b and c → a=\sqrt{c^{2}-b^{2}  }

Here,  b = 7 mm and c = \sqrt{85} mm

Plugging these numbers into our equation gives us a=\sqrt{(\sqrt{85})^{2} -(7)^{2}  } →\sqrt{85-49} = \sqrt{36} = 6 mm

6 0
3 years ago
Which facts could be applied to simplify this expression? Select three options.
kumpel [21]

Answer:

A, B, and D

Step-by-step explanation:

To subtract like terms, you're supposed to subtract the coefficients, so <u><em>Option 1 is correct</em></u>. The statement like terms are terms that contain the same variable, raised to the same power, is true, so <u><em>Option 2 is correct</em></u>. The simplified expression is -4 - 3y + 3z, so Option 3 is wrong and <u><em>Option 4 is correct</em></u>. Option 5, -(-x) = -x is wrong, so Option 5 is not correct. Therefore, the answers are Options 1, 2, and 4 (or A, B, and D).

Hope this helps! I got it right on Edgen.

3 0
3 years ago
Tell whether the ordered pair is a solution to the equation please show how you solve it.
Orlov [11]

Answer:

The ordered pair is not a solution as both sides of the equation do not equal each other.  

Step-by-step explanation:

(3,2);  x + 6y = 13

(3) + 6(2) = 13

3 + 12 = 13

15 = 13

3 0
2 years ago
The length of a rectangle is 4ft less than twice its width. The perimeter of the rectangle is 256 ft. Find the length and width
Olin [163]
For problems like this, change the wording into simple algebraic formulas. We know that the area of a rectangle is its width times its length, or A=LW. The problem tells you that the area is 48, so LW=48. Also, if the length = twice the width minus 4, then L=2W-4.

From here, substitute your new L value for the L in the first equation:
48=LW --> 48=(2W-4)W

Now solve this equation by factoring it out into a polynomial:
48=2W^2-4W --> 24=W^2-2W --> W^2-2W-24=0 --> (W+4)(W-6)=0. Solving this equation gives us W values of 6 and -4, but since the width of a rectangle cannot be negative, the width must be 6.

Since L=2W-4, then L=2(6)-4 --> L=12-4 = 8. Therefore, the dimensions are 6X8, or 6 feet by 8 feet.

To check our work: The length equals four feet less than twice the width: 8=2(6)-4 --> 8=12-4 --> 8=8. This checks out.

Also, the area is 48 ft^2, and (6)(8) = 48, so this also checks out.

Hopefully this helps. If you need any more help or if I went over something too quickly, just let me know.
5 0
3 years ago
Read 2 more answers
A brand of uncooked spaghetti comes in a box that is a rectangular prism with a length of 7 inches, a width of 3 inches, and a h
creativ13 [48]

Answer:

The surface area of the prism is equal to 72 sq inches.

Step-by-step explanation:

Given that,

A rectangular prism with a length of 7 inches, a width of 3 inches, and a height of 1 1/2  inches.

The surface area of a rectangular prism is given by :

A=2(lb+bh+hl)

Put all the values,

A=2(7\times 3+3\times \dfrac{3}{2}+\dfrac{3}{2}\times 7)\\\\A=2\times 36\\\\A=72\ in^2

So, the surface area of the prism is equal to 72 sq inches.

5 0
2 years ago
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