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3 years ago

Help.What is the area of the shaded region?

Mathematics

2 answers:

zubka84 [21]3 years ago

8 0

Answer:

72 area units

Step-by-step explanation:

on the pic

quester [9]3 years ago

5 0

Answer:

Step-by-step explanation:

It's equilateral triangle so all sides are equal

there are 4 equilateral triangles :

½bh=½*6*6=18

18*4=72

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Find the surface area of this cube. Be sure to include the correct unit in your answer.

FinnZ [79.3K]

Answer:

486

Step-by-step explanation:

9*9=81

81*6=486

The 9 is because of each side being 9 inches long and there are 6 sides.

8 0

3 years ago

Read 2 more answers

I have this calculus problem that I’m having trouble with. I’m not allowed to use the power rule. I need to use the formula s’(t

qaws [65]

Step-by-step explanation:

Know that

The derivative of position with respect of t is velocity.

Or if you want to say

$\frac{d}{dt} (s(t) = v$

Or in the form of the definition of the derivative

$s'(t) = \frac{6 (t + h) {}^{3} + 2(t + h) + 9 - (6 {t}^{3} + 2t + 9) }{h}$

$s'(t) = \frac{6 {t}^{3} + 18t {}^{2}h + 18h {}^{2} t + 6 {h}^{3} + 2t + 2h + 9 - (6 {t}^{3} + 2t + 9)}{h}$

$s'(t) = \frac{18 {t}^{2}h + 18h {}^{2}t + 6h {}^{3} + 2h }{h}$

$s'(t) = 18 {t}^{2} + 18th + 6h {}^{2} + 2$

Let h be a small number, so we can cancel out small things.

$s'(t) = 18 {t}^{2} + 2$

We know the derivative of position is velocity

$v = 18 {t}^{2} + 2$

So the velocity at time t is

$v = 18 {t}^{2} + 2$

Plug in 3 for t to find the velocity

$v(3) =18(3) {}^{2} + 2$

$v(3) = 164$

So the velocity at t=3, is 164.

Next, the derivative of velocity is acceleration so

$v'(t) = \frac{18(t + h) {}^{2} + 2 - (18 {t}^{2} + 2)}{h}$

$v'(t) = \frac{18 {t}^{2} + 36ht + 18 {h}^{2} + 2(- 18 {t}^{2} + 2 ) }{h}$

$v'(t) = \frac{36ht + 18 {h}^{2} }{h}$

Divide by h.

$v'(t) = 36t + 18h$

$v'(t) = 36t$

The derivative of velocity is acceleration so

$a = 36t$

The acceleration in time t is

$36t$

To find acceleration, plug in 3 for t.

$a(3) = 36( 3) = 108$

4 0

3 years ago

Question 14 of 23

shtirl [24]

Answer:

Step-by-step explanation:

3 0

2 years ago

Plsssss help me with this angle circle problem what is x

kirza4 [7]

Answer:

x = 3

Step-by-step explanation:

Once again we want to use the relationship stated earlier

Where A * B = C * D

Once again imagine that the segments in the given problem have letters

A = x

B = 12

C = x + 1

D = 9

Now we create an equation using the relationship

12 * x = 9(x+1)

now we solve using basic algebra

step 1 distribute the 9 to the x and the 1

9 * x = 9x

9 * 1 = 9

now we have 12x = 9x + 9

step 2 subtract 9x from each side

12x - 9x = 3x

9x - 9x cancels out

now we have 3x = 9

step 3 divide each side by 3

3x/3=x

9/3=3

we're left with x = 3

4 0

3 years ago

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Adam has adime has a diameter of about 18 ml is how many milliliters long a row of 34 dimes

Romashka [77]

Answer:

One dime has diameter of 18 mm. As such 34 dimes will form a row 34×18=612 mm.

Step-by-step explanation:

8 0

3 years ago