3 years ago

What is the domain of y=2x-10 square root

Mathematics

1 answer:

Masja [62]3 years ago

3 0

[5,∞) is the domain of y=√2x-10

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Evaluate z + 2+ z for x = 2, y=-3, z = -4.

Artyom0805 [142]

Answer:

-6

Step-by-step explanation:

Are you sure that z + 2+ z is correct? x and y do not appear here.

z + 2+ z simplifies to 2z + 2, and so, if z = -4, z + 2+ z has the value

2(-4) + 2, or -6.

7 0

3 years ago

Can y’all please help me answer these questions

mario62 [17]

Step-by-step explanation:

⇒ $V = \pi r^{2}h$

⇒ $V = \pi(10)^{2}(40)$

⇒ $V = 4000\pi$

⇒ $V = 12566.4cm^{3}$

⇒ $V = \frac{1}{3}\pi r^{2}h$

⇒ $V = \frac{1}{3}\pi (8)^{2}(h)$

As we know the radius and slant height, we can use Pythagoras' Theorem to find the perpendicular height.

⇒ $a^{2} + b^{2} = c^{2}$

⇒ $(8)^{2} + h^{2} = 20^{2}$

⇒ $h = \sqrt{20^{2} - 8^{2}}$

⇒ $h = 4\sqrt{21}$

Now substitute this into the volume formula.

⇒ $V = \frac{1}{3}\pi (8)^{2}(4\sqrt{21})$

⇒ $V = \frac{256\sqrt{21} }{3}\pi$

⇒ $V = 1228.5mm^{3}$

⇒ $V = l^{3}$

⇒ $V = (3.1)^{3}$

⇒ $V = 29.8inches^{3}$

⇒ $V = \frac{1}{3}lwh$

⇒ $V = \frac{1}{3}(12)(4)(6)$

⇒ $V = 96inches^{3}$

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3 years ago

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A line with arrows that points opposite from each other.<span />

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Use the scale factor to find the area of the enlarged figure. Explain your steps.

lora16 [44]

Answer:

12.8 units

Step-by-step explanation:

25.6/8 = a/4

a = 4 × 25.6/8

a = 12.8

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3 years ago

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Kevin is 14 inches taller than George. The difference between Kevin and Richard is two inches less than between Richard and Geor

Artemon [7]

1 foot is 12 inches which makes 14 1.2

6.6-1.2= 5'4 george

richard is 6'0

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3 years ago