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2 years ago

PLEASEE HELP FIRST ONE IS QUESTION THE REST ARE ANSWERS

Mathematics

2 answers:

nexus9112 [7]2 years ago

7 0

The answer should be A.not entirely sure though

Hope this helps

Reika [66]2 years ago

7 0

The correct answer is 2x^5y^8 and 12 xy^7

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Please study the graph and select all the true statements.

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you do k12 too? what a small world

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2 years ago

The circle above represents the amount of fruits produced by a farmer . if 0 is the centre of the circle and the three angles at

slavikrds [6]

Answer:

(b) 1/3

Step-by-step explanation:

because it has 3 equal parts

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2 years ago

Read 2 more answers

A manufacturing company with 450 employees begins a new product line and must increase their number of employees by 18%. How man

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The total employees the company now have is 531.

Solution:

Beginning employees in a company = 450

Percentage of employees increased = 18%

Number of increased employees = 18% of 450

$$=\frac{18}{100}\times 450$

= 81

Total employees = Beginning employees + Increased employees

= 450 + 81

= 531

The total employees the company now have is 531.

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2 years ago

Use spherical coordinates. Find the volume of the solid that lies within the sphere x^2 + y^2 + z^2 = 81, above the xy-plane, an

Natasha_Volkova [10]

Answer:

The volume of the solid is 243 $\sqrt{2} \ \pi$

Step-by-step explanation:

From the information given:

BY applying sphere coordinates:

0 ≤ x² + y² + z² ≤ 81

0 ≤ ρ² ≤ 81

0 ≤ ρ ≤ 9

The intersection that takes place in the sphere and the cone is:

$x^2 +y^2 ( \sqrt{x^2 +y^2 })^2 = 81$

$2(x^2 + y^2) =81$

$x^2 +y^2 = \dfrac{81}{2}$

Thus; the region bounded is: 0 ≤ θ ≤ 2π

This implies that:

$z = \sqrt{x^2+y^2}$

ρcosФ = ρsinФ

tanФ = 1

Ф = π/4

Similarly; in the X-Y plane;

z = 0

ρcosФ = 0

cosФ = 0

Ф = π/2

So here; $\dfrac{\pi}{4} \leq \phi \le \dfrac{\pi}{2}$

Thus, volume: $V = \iiint_E \ d V = \int \limits^{\pi/2}_{\pi/4} \int \limits ^{2\pi}_{0} \int \limits^9_0 \rho ^2 \ sin \phi \ d\rho \ d \theta \ d \phi$

$V = \int \limits^{\pi/2}_{\pi/4} \ sin \phi \ d \phi \int \limits ^{2\pi}_{0} d \theta \int \limits^9_0 \rho ^2 d\rho$

$V = \bigg [-cos \phi \bigg]^{\pi/2}_{\pi/4} \bigg [\theta \bigg]^{2 \pi}_{0} \bigg [\dfrac{\rho^3}{3} \bigg ]^{9}_{0}$

$V = [ -0+ \dfrac{1}{\sqrt{2}}][2 \pi -0] [\dfrac{9^3}{3}- 0 ]$

V = 243 $\sqrt{2} \ \pi$

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2 years ago

At the end of a snow storm, Riley saw there was a lot of snow on her front lawn. The temperature increased and the snow began to

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Answer: the x-intercept of the fuction is 13 which represents the number of hours unit

All the snow has melted

Step-by-step explanation:

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2 years ago