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3 years ago

Suppose that a and b are rational numbers. which expression is equivalent to a - b?

Mathematics

1 answer:

mezya [45]3 years ago

6 0

Answer: Its a

Step-by-step explanation:

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If a number has z positive integer factors then y and 2z integer factors. true/false

aliina [53]

Answer:

Step-by-step explanation:

8 0

3 years ago

Simplify the numerical expression: -4.2 + 8.1 x ( -1.9)

SIZIF [17.4K]

-19.59 is your answer because u do PEMDAS and that would be 8.1*(-1.9) which gives you -15.39 Then you do -4.2+-15.39 and you would get -19.59

3 0

3 years ago

Complete the patterns of the equivalent ratios by filling in the gaps.

gayaneshka [121]

21:3
9:3
3:1

there all a 3:1 ratio

4 0

3 years ago

The graph of the equation y = 3x − 4 is shown. What statement is true about every point on the graph?

SpyIntel [72]

Answer:

Slope is 3

Y- intercept is -4

Doesn't pass through zero.

Linear

Give me options and I can give a better answer :)

3 0

3 years ago

A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm. Calculate the volume of

never [62]

Answer:

The volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

Step-by-step explanation:

Formula

$Volume\ of\ a\ cylinder = \pi r^{2} h$

$Volume\ of\ a\ cone = \pi r^{2} \frac{h}{3}$

Where r is the radius and h is the height .

As given

A cylinder and cone have the same height and radius. The height of each is 5 cm, and the radius is 2 cm.

$\pi = 3.14$

Thus

$Volume\ of\ a\ cylinder =3.14\times 5\times 2\times 2$

= 62.8 cm³

Thus the volume of a cylinder is 62.8 cm³ .

$Volume\ of\ a\ cone = 3.14\times 2\times 2\times frac{5}{3}$

$Volume\ of\ a\ cone =\frac{5\times 3.14\times 2\times 2}{3}$

$Volume\ of\ a\ cone =\frac{62.8}{3}$

= 20.9 (Approx) cm³

Thus the volume of a cone is 20.9 cm³ .

Therefore the volume of a cylinder is 62.8 cm and the volume of a cone is 20.9 cm³ .

8 0

3 years ago