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3 years ago

Знайдіть корені рівняння |3х + 7| -2 =0 СРОЧНО ДАМ 30 БАЛОВ

Mathematics

1 answer:

Usimov [2.4K]3 years ago

7 0

Answer: X1= -3 X2= -5/3

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The answer is B- Yes, the cost of the annual premium for 12 years was less than the accident claims.

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3 years ago

Using the Addition Method, solve for x in the following system of linear equations.

Anna71 [15]

Answer:

x = 0

Step-by-step explanation:

if 2y + x = 4

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if y - 3x = 2

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2 years ago

A right circular cone is undergoing a transformation in such a way that the radius of the cone is increasing at a rate of 1/2 in

Ivenika [448]

Answer:

The volume is decreasing at the rate of 1.396 cubic inches per minute

Step-by-step explanation:

Given

Shape: Cone

$\frac{dr}{dt} =\frac{1}{2}$ --- rate of the radius

$\frac{dh}{dt} =-\frac{1}{3}$ --- rate of the height

$r = 2$

$h = \frac{1}{3}$

Required

Determine the rate of change of the cone volume

The volume of a cone is:

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

Differentiate with respect to time (t)

$\frac{dV}{dt} = \frac{\pi}{3}(2rh \frac{dr}{dt} + r^2 \frac{dh}{dt})$

Substitute values for the known variables

$\frac{dV}{dt} = \frac{\pi}{3}(2*2*\frac{1}{3}* \frac{1}{2} - 2^2 *\frac{1}{3})$

$\frac{dV}{dt} = \frac{\pi}{3}(\frac{4}{3}* \frac{1}{2} - \frac{4}{3})$

$\frac{dV}{dt} = \frac{\pi}{3}(\frac{4}{3}(\frac{1}{2} - 1))$

$\frac{dV}{dt} = \frac{\pi}{3}(\frac{4}{3}*- 1)$

$\frac{dV}{dt} = -\frac{\pi}{3}*\frac{4}{3}$

$\frac{dV}{dt} = -\frac{22}{7*3}*\frac{4}{3}$

$\frac{dV}{dt} = -\frac{22}{21}*\frac{4}{3}$

$\frac{dV}{dt} = -\frac{88}{63}$

$\frac{dV}{dt} =-1.396in^3/min$

The volume is decreasing at the rate of 1.396 cubic inches per minute

3 0

3 years ago

Plz help I will mark you brainlist plz

amid [387]

Here is all the work and answers for these questions they are all correct i checked them all and ive done this assignmnet before

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3 years ago

Which numbers below belong to the inequality check all that apply x/6 greater than equal to 9

grandymaker [24]

X/6 >= 9
x >= 6 x 9
x >= 54

Therefore, 60, 72 and 54 satisfies the inequality.

6 0

4 years ago

Знайдіть корені рівняння |3х + 7| -2 =0 СРОЧНО ДАМ 30 БАЛОВ​

Знайдіть корені рівняння |3х + 7| -2 =0 СРОЧНО ДАМ 30 БАЛОВ