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3 years ago

7,8,9 ABC or D no explanation needed just answers and I’ll give brainly

Mathematics

2 answers:

victus00 [196]3 years ago

7 0

Answer: b, c, 4x^2y

Step-by-step explanation:

tekilochka [14]3 years ago

3 0

Answer:

7) B

8) C

9) 4x²y

Step-by-step explanation:

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I don’t understand this either

trasher [3.6K]

It is a part of slope form ( intercept

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4 years ago

Read 2 more answers

Select the correct answer.

Usimov [2.4K]

Applying the law of sines, the approximate length of side YZ is: A. 15.7 units.

<h3>How to Apply the Law of Sines?</h3>

Law of sines is expressed as follows: x/sin X = y/sin Y = c/sin Z.

Given the following:

x (YZ) = ?
X = 32°
z = 24
Z = 180 - 32 - 94 = 54°

Plug in the values

x/sin 32 = 24/54

x = (sin 32 × 24)/sin 54

x ≈ 15.7 units.

Learn more about the law of sines on:

brainly.com/question/27174058

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2 years ago

The radius of the base of a cylinder is decreasing at a rate of 121212 kilometers per second. The height of the cylinder is fixe

WARRIOR [948]

Answer:

7536 $km^3/sec$

Step-by-step explanation:

Given that:

Rate of decreasing of radius = 12 km/sec

Height of cylinder is fixed at = 2.5 km

Radius of cylinder = 40 km

To find:

The rate of change of Volume of the cylinder?

Solution:

First of all, let us have a look at the formula for volume of a cylinder.

$Volume = \pi r^2h$

Where $r$ is the radius and

$h$ is the height of cylinder.

As per question statement:

$r$ = 40 km (variable)

$h$ = 2.5 (constant)

$\dfrac{dV}{dt} = \dfrac{d}{dt}\pi r^2h$

As $\pi, h$ are constant:

$\dfrac{dV}{dt} = \pi h\dfrac{d}{dt} r^2\\\Rightarrow \dfrac{dV}{dt} = \pi h\times 2 r\dfrac{dr}{dt} \\$Putting the values:$\\\Rigghtarrow\dfrac{dV}{dt} = 3.14 \times 2.5\times 2 \times 40\times 12 \\\Rigghtarrow\dfrac{dV}{dt} = 7536\ km^3/sec$

4 0

3 years ago

Write an equation<br> in slope y-intercept form A(2,6),m=0

REY [17]

Solve for b:

y = 0x + b

6 = 0 + b

b = 6

The answer is y = 0x + 6

3 0

3 years ago

I need answers to these questions

GalinKa [24]

Answer is in the attached file...

8 0

3 years ago