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3 years ago

Inequality for thirty is no greater than the sum of a number and -8

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

Answer:

30≤-8+x

Step-by-step explanation:

The wording no greater then lets us know that the inequality is less than or equal to. The wording sum means the its adding the number and negative 8. Lets have x represent the unknown number.

30≤-8+x

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A newspaper reported that last weekend a movie earned $16.2 million. This was 68% of the previous weekend's earnings. Approximat

Serjik [45]

Answer:

$23.8 million

Step-by-step explanation:

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16.2 = .68w

x = 16.2/0.68

x = 23.8

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3 years ago

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Anton [14]

Answer:

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3 years ago

-5 * 1/-7 * 4/8<br> ........................

Gemiola [76]

Answer:

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Step-by-step explanation:

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4 years ago

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Goryan [66]

Answer:

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3 years ago

PLS HELP ME!!! The figure is made up of a cone and a hemisphere. To the nearest whole number, what is the approximate volume of

Pachacha [2.7K]

Hello!

The figure is made up of a cone and a hemisphere. To the nearest whole number, what is the approximate volume of this figure? Use 3.14 to approximate π . Enter your answer in the box. cm³

Data: (Cone)

h (height) = 12 cm

r (radius) = 4 cm (The diameter is 8 being twice the radius)

Adopting: $\pi \approx 3.14$

V (volume) = ?

Solving: (Cone volume)

$V = \dfrac{ \pi *r^2*h}{3}$

$V = \dfrac{ 3.14 *4^2*\diagup\!\!\!\!\!12^4}{\diagup\!\!\!\!3}$

$V = 3.14*16*4$

$\boxed{V = 200.96\:cm^3}$

Note: Now, let's find the volume of a hemisphere.

Data: (hemisphere volume)

V (volume) = ?

r (radius) = 4 cm

Adopting: $\pi \approx 3.14$

If: We know that the volume of a sphere is $V = 4* \pi * \dfrac{r^3}{3}$ , but we have a hemisphere, so the formula will be half the volume of the hemisphere $V = \dfrac{1}{2}* 4* \pi * \dfrac{r^3}{3} \to \boxed{V = 2* \pi * \dfrac{r^3}{3}}$