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2 years ago

HELP ME PLS I will mark brainiest if i can! qr + r; use q = 3, and r = -6

Mathematics

2 answers:

djyliett [7]2 years ago

7 0

Answer:

-24

Step-by-step explanation:

3(-6)+-6

-18+-6

-24

Hope it helps. Please mark as brainliest.

mamaluj [8]2 years ago

5 0

Answer:

-24

Step-by-step explanation:

3(-6)-6

-18-6

-24

Please mark as brainliest. Hope it helps.

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Need help solving this differentiation problem please. Thank you.

DIA [1.3K]

First convert the terms to fractional exponents

u = t^2/3 - 3t^3/2

differentiating

u' = 2/3 t^ (2/3 - 1) - 3* 3/2 t^(3/2 - 1)

= 2/3 t ^(-1/3) - 9/2 t ^(1/2)

= 2 / (3∛t) - 9 √ t / 2 in radical form

7 0

3 years ago

Read 2 more answers

if we write a 3 in front of a two-digit number, the new three digit number will be 24 more than 7 tines the origional two digit

JulsSmile [24]

Here we have a simple algebra problem, we will see that the original number was 46.

<h3>How to find the equation we need to solve:</h3>

We know that we start with a 2 digit number, it can be written as:

a*10 + b

Where a and b are decimal numbers. (from 0 to 9).

If we add a 3 "in front of it", we are adding:

3*100 + a*10 + b

And this is 24 more than 7 times the original number, so we have:

3*100 + a*10 + b = 24 + 7*(a*10 + b)

Now we can solve that:

300 + a*10 + b = 24 + a*70 + b*7

300 - 24 + a*10 - a*70 + b - b*7 = 0

276 - a*60 - b*6 = 0

276 = a*60 + b*6

This part is tricky, here you need to remember that a and b can only be integers from 0 to 9, so you can try with different integer values for b and see if a is also an integer for that value, for example taking b = 6 we get:

276 = a*60 + 6*6 = a*60 + 36

276 - 36 = a*60

240/60 = a = 4

So if b = 6, then a = 4, so both are integers in the wanted range.

From this, we can conclude that the original number is 46.

If you want to learn more about algebra, you can read:

brainly.com/question/4344214

4 0

2 years ago

The center of circle P is at (-3, 8) and the radius is 12<br> units. Find its equation.

garik1379 [7]

Answer:

The answer is

Step-by-step explanation:

The equation of a circle is given by

where ( a , b) is the center of the circle and

r is the radius

From the question the center is

P (-3, 8) and radius = 12

Substitute the values into the above formula and solve

That's

( x + 3)² + ( y - 8) = 12²

<u>Expand the terms</u>

That's

x² + 6x + 9 + y² - 16y + 64 = 144

<u>Arrange the terms</u>

x² + y² + 6x - 16y + 9 + 64 - 144 = 0

We have the final answer as

Hope this helps you

4 0

3 years ago

Which unit of measure would be appropriate for the area of a picture that is 20 centimeters tall and 15 centimeters wide?

Alex_Xolod [135]

Area= 300 cm squared

5 0

2 years ago

Read 2 more answers

Find y'' by implicit differentiation. 3x^3 + 4y^3 = 5

pochemuha

We first have to find the first derivative before we can find the second. First derivative with respect to x is $9x^2+12y^2 \frac{dy}{dx}=0$ so $12y^2 \frac{dy}{dx}=-9x^2$ and $\frac{dy}{dx}=- \frac{9x^2}{12y^2}=- \frac{3x^2}{4y^2}$ . That's the first derivative. Now for the second it's probably easiest to use the quotient rule, even though it's usually long and drawn out. That looks like this: $\frac{dy}{dx}= \frac{4y^2(-6x)-[-3x^2(8y \frac{dy}{dx})] }{(4y^2)^2}$ which simplifies a bit to $\frac{dy}{dx}= \frac{-24xy^2+24x^2y( \frac{dy}{dx}) }{16y^4}$ . We will multiply both sides by that denominator to get rid of it which leaves us with $16y^4 \frac{dy}{dx}=-24xy^2+24x^2y \frac{dy}{dx}$ . Get both dy/dx terms on the same side, and then factor it out. $\frac{dy}{dx}(16y^4-24x^2y)=-24xy^2$ . Divide to isolate the dy/dx: $\frac{d^2y}{dx^2}= \frac{-24xy^2}{16y^4-24x^2y}$ . There's no simplifying you could do after that that would make any significant difference.

6 0

3 years ago