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2 years ago

Which inequalities have -0.5, 2.5, and 4 as part of the solution set? Select all that apply. z>-3 z<5 z<4 z<_4 z>

Mathematics

2 answers:

ololo11 [35]2 years ago

5 0

Answer:

$z>-3\\z$

Step-by-step explanation:

$Check \ z>-3\\-0.5>-3\\2.5>-3\\4>-3\\Hence \ these \ numbers \ are \ part \ of \ solution \ set \ of \ the \ inequality\\\\Check \ z$

$Check \ z>0\\-0.5\not>0\\Hence \ these \ numbers \ are \ not \ part \ of \ the \ solution \ set \ of \ inequality$

NISA [10]2 years ago

3 0

Answer:

A, B, D

Step-by-step explanation:

I got this correct because i took the quiz

(Hope this helps for kids who do online school!)

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The answer is 36in because that’s the pathagreom you need to use to find the answer

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Select the interval where f(x)>0 A: -2 B: 1< x<2 C: 4 HELP

Viefleur [7K]

Answer: 1 < x < 2

Step-by-step explanation:

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3 years ago

17. A hemisphere of lead of radius 7 cm is cast into a right circular cone of height 49 cm. Find

Pavlova-9 [17]

Answer:

$r = 3.74cm$

Step-by-step explanation:

Given

Hemisphere

$Radius = 7cm$

Cone

$Height = 49m$

Required

Determine the radius of the cone

First, we calculate the volume (V1) of the hemisphere.

$V_1 = \frac{2}{3}\pi r^3$

Substitute 7 for r

$V_1 = \frac{2}{3}\pi * 7^3$

$V_1 = \frac{2}{3}\pi * 343$

$V_1 = \frac{686}{3}\pi$

Volume (V2) of a cone is:

$V_2 = \frac{1}{3}\pi r^2h$

Because the lead is cast into a cone, then they have the same volume.

So, we have:

$\frac{686}{3}\pi = \frac{1}{3}\pi r^2h$

$686 = r^2h$

Substitute 49 for h

$686 = r^2 * 49$

Divide both sides by 49

$r^2 = \frac{686}{49}$

$r^2 = 14$

$r = \sqrt{14$

$r = 3.74cm$

Hence, the radius of the cone is 3.74cm

5 0

2 years ago

Solve for x. A. 11 B. 17 C. 15 D. 19

mamaluj [8]

The full length of one line times the length of the line outside the circle is equal the the other line.

(7+x)*7 = (13 +8) * 8

Simplify:

7x +49 = 21 * 8

7x +49 = 168

Subtract 49 from each side:

7x = 119

Divide both sides by 7:

x = 17

The answer is B. 17

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3 years ago

Use the volume formula to find the volume of the prism.

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For prisms, the formula is b * h * w. You multiply the three numbers you are given to get 21 cubic units.

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