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3 years ago

Hello, please help now!!

Mathematics

1 answer:

Gala2k [10]3 years ago

4 0

X - 8 = 12, add 8 to 12. The answer is 20.

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In which quadrant does the point (–10, –9) lie

ludmilkaskok [199]

The 3rd quadrant bc they are both negative points

5 0

3 years ago

A line with a slope of 5 passes through the point (2, 5). What is its equation in

Maru [420]

Answer: y = 5x - 5

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The radius of a right circular cylinder is increasing at the rate of 3 ft/sec, while the height is decreasing at the rate of 6 f

goblinko [34]

Answer:

$\frac{dV}{dt}=-450\pi ft^3/sec$

Step-by-step explanation:

Let's assume

radius of cylinder as 'r'

height of cylinder as 'h'

so, we have

$\frac{dr}{dt} =3ft/sec$

$\frac{dh}{dt} =-6ft/sec$

r=15ft

h=10ft

now, we can use volume of cylinder formula

$V=\pi r^2h$

we can find derivative with respect to t

$\frac{dV}{dt}=2\pi r h\times\frac{dr}{dt} +\pi r^2\times \frac{dh}{dt}$

now, we can plug values

$\frac{dV}{dt}=2\pi (15)(10)\times3 +\pi (15)^2\times -6$

now, we can simplify it

$\frac{dV}{dt}=-450\pi ft^3/sec$

6 0

3 years ago

Given: △ABC, D∈ AC m∠ABC=m∠BDA AB=2, AC=4 Find: AD and DC

sveta [45]

Answer:

The value of AD=1 and DC=3

Step-by-step explanation:

Given: ΔABC, D∈ AC m∠ABC=m∠BDA, AB=2, AC=4

Diagram: Please find attachment.

To find: AD=? and DC=?

Calculation:

In ΔABC and ΔADB

∠ABC=∠ADB (Given)

∠A=∠A (Common)

Therefore, ΔABC ≈ ΔADB by AA similarity

If two triangles are similar then ratio their corresponding sides are equal

Therefore,

$\dfrac{AD}{AB}=\dfrac{AB}{AC}$

where, AD=?, AB=2, AC=4

$\dfrac{AD}{2}=\dfrac{2}{4}$

$AD=\dfrac{2\times 2}{4}=1$

AD=1

AD+DC=AC

1+DC=4

DC=4-1

DC=3

Hence, The value of AD=1 and DC=3

7 0

3 years ago

Read 2 more answers

Roumd 33 to the nearest 100

storchak [24]

Answer:

Step-by-step explanation:

Trick question. Good to know.

0 is the closest 100.

33 will round to 0

6 0

4 years ago