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arsen [322]
2 years ago
6

Which system has no solution?

Mathematics
1 answer:
stealth61 [152]2 years ago
6 0

Answer:

x+y=-1

2x+2y=8

the correct answer is B

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HELP me please.............​
Ray Of Light [21]

Answer: ill try looking this one up to help u just add me on snap its johni_spurgeon

Step-by-step explanation:

6 0
3 years ago
A sphere and a cylinder have the same radius and height. The volume of the cylinder is 27 pi feet cubed.
LenaWriter [7]

Answer:

C. V = two-thirds (27)

Step-by-step explanation:

Given

Solid Shapes: Cylinder and Sphere

Volume of Cylinder = 27π ft³

Required

Volume of the sphere.

From the question,

<u>We have that</u>

1.  The volume of the sphere is the same as the volume of the cylinder

2. The height of the sphere is the same as the height of the cylinder.

From (2) above;

This means that the height of the cylinder equals the diameter of the sphere.

Let h represent the height of the sphere and d represent the diameter of sphere.

Mathematical, d = h

Recall that radius, r = r = \frac{d}{2}

Substitute h for d in the above expression

r = \frac{h}{2}. ----- (take note of this)

Calculating the volume of a cylinder.

V = πr²h

Recall that  V = 27; This gives us

27 = πr²h

Divide both sides by h

\pi r^2 = \frac{27}{h}

-------------------

Calculating the volume of a sphere

V = \frac{4}{3}\pi r^3

Expand the above expression

V = \frac{4}{3}\pi r^2 * r

Substitute \pi r^2 = \frac{27}{h}

V = \frac{4}{3} * \frac{27}{h} * r

Recall that r = \frac{h}{2}

So,

V = \frac{4}{3} * \frac{27}{h} * \frac{h}{2}

V = \frac{4}{3} * \frac{27}{2}

V = \frac{2}{3} * 27

V = \frac{2}{3} (27)

V = two-third (27)

4 0
3 years ago
If it starts out at -10 degrees, what will the temperature be if it rises 30 degrees?
Bond [772]

add 30 to -10:

-10 + 30 = 20

 Answer is B.

4 0
3 years ago
The tree in milan's backyard is 8.4m high. how high is it in centimeters? be sure to include the correct unit in your answer.
Alex787 [66]
840 centimeters ...there 100 centimeters in one meter
5 0
3 years ago
Emmett participated in a race. During the race, he ran 5 miles north and then ran 12 miles west. What is the shortest distance t
Lelechka [254]
I'd suggest you sketch this situation.  If you did, you'd likely see right away that the shortest distance back to the starting point would be the hypotenuse of the right triangle whose legs are of lengths 5 miles and 12 miles.

Apply the Pythagorean Theorem to solve this.
4 0
3 years ago
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