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3 years ago

Find the geometric mean if 9 and 16.

Mathematics

1 answer:

netineya [11]3 years ago

5 0

I’m pretty sure it’s 12 :)

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Z=(x+y)ex,x=3t,y=2−t2, find dz/dt using the chain rule. assume the variables are restricted to domains on which the functions ar

luda_lava [24]

$z=(x+y)e^x$
$\begin{cases}x=3t\\y=2-t^2\end{cases}$

$\dfrac{\mathrm dz}{\mathrm dt}=\dfrac{\partial z}{\partial x}\dfrac{\mathrm dx}{\mathrm dt}+\dfrac{\partial z}{\partial y}\dfrac{\mathrm dy}{\mathrm dt}$
$\dfrac{\mathrm dz}{\mathrm dt}=(e^x+(x+y)e^x)(3)+e^x(-2t)$
$\dfrac{\mathrm dz}{\mathrm dt}=3(1+x+y)e^x-2te^x$
$\dfrac{\mathrm dz}{\mathrm dt}=3(1+3t+2-t^2)e^{3t}-2te^{3t}$
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4 years ago

In the picture lines AB and CD are parallel. Find the measures of

jasenka [17]

Answer/Step-by-step explanation:

1. <ABC and <BCD are alternate interior angles. Alternate interior angles are equal, therefore, since m<ABC = 38°, then m<BCD = 38°

2. m<ECF = m<BCD (corresponding angles)

m<ECF = 38° (substitution)

3. m<DCF + m<ECF = 180° (linear pair)

m<DCF + 38° = 180° (substitution)

m<DCF = 180° - 38° (Subtraction property of equality)

m<DCF = 142°

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4 years ago

What is the solution set of fx x>-5) u {xx<5)?

Cloud [144]

Huh.........

Explanation:

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3 years ago

The measure of an obtuse angle is

Mariulka [41]

Answer:

C. greater than 90 and less than 180 degrees.

Step-by-step explanation:

An obtuse angle is angle in the second quadrant.

This angle is more than $90\degree$ but less than $180\degree$ .

Therefore the correct answer is option C.

Note however that a $90\degree$ angle is called a right angle and an angle greater than $0$ but less than $90\degree$ is called an acute angle.

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3 years ago

Read 2 more answers

Write 5^3 x √5 as a single power of 5

MakcuM [25]

√5 = 5^(1/2)

Multiplying two number with the same base has as result a number with the same base and the sum of the exponents so:

1/2 + 3 = 7/2
which means
5^3 x 5^(1/2) = 5^(7/2)

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3 years ago

Find the geometric mean if 9 and 16.​

Find the geometric mean if 9 and 16.