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wolverine [178]

3 years ago

15

The shape below is constructed from six squares, and the lengths of the sides of the three smallest squares are written inside o

f them. Find the area and perimeter of the shaded part.

1 answer:

Maurinko [17]3 years ago

5 0

Answer:

78

Step-by-step explanation:

Smallest square: 1

Small Square: 2, Area of 4

Mid Square: 3, Area of 9

Mid White Square: 5, Area of 25

Big Square: 8, Area of 64

1 + 4 + 9 + 64 = 78

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A shoreline is eroding at a rate of 1/3 3 foot per 3 months. How many feet are eroding per year?

salantis [7]

7ft if 3+1/3 hopefully this helps i did hwat i can

4 0

4 years ago

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Check For Understanding

adelina 88 [10]

Answer:

Distance between A ----> B : 2 cm

B ---> C: 3 cm : 600 meters

A----> C: 4 cm

3:600 meters scaled

So its 200 meters per every 1 cm!

From A to B : 400 meters

From B to C : 600 meters

Frok C to A: 800 meters

Therefore we sum 400+600+800= 1800 meters

8 0

3 years ago

How long does it take a truck traveling at a velocity of 90 km/hr to travel 990 km.?

makvit [3.9K]

Answer:

10 hr

Step-by-step explanation:

i divided 990 by 90 and got 10 hr

3 0

3 years ago

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Let II be the tangent plane to the graph of f(x, y) = 8 – 2x^2 – 3y^2 at the point (1, 2,-6). Let S, x² + y^2 + z = 4 be another

stealth61 [152]

Let $F(x,y,z)=f(x,y)-z$ . The tangent plane to $f(x,y)$ at (1, 2, -6) has equation

$\nabla F(1,2,-6)\cdot(x-1,y-2,z+6)=0$

We have

$\nabla F(x,y,z)=(-4x,-6y,-1)\implies\nabla F(1,2,-6)=(-4,-12,-1)$

Then the tangent plane has equation

$(-4,-12,-1)\cdot(x-1,y-2,z+6)=0\implies -4(x-1)-12(y-2)-(z+6)=0\implies 4x+12y+z=22$

Let $g(x,y)=4-x^2-y^2$ , and $G(x,y,z)=g(x,y)-z$ . The tangent plane to $S$ at a point $(a,b,c)$ is

$\nabla G(a,b,c)\cdot(x-a,y-b,z-c)=0$

We have

$\nabla G(x,y,z)=(-2x,-2y,-1)\implies \nabla G(a,b,c)=(-2a,-2b,-1)$

so that this plane has equation

$(-2a,-2b,-1)\cdot(x-a,y-b,z-c)=0\implies2ax+2by+z=2a^2+2b^2+c$

In order for this plane to be parallel to the previous plane, we need to have

$\begin{cases}2a=4\\2b=12\end{cases}\implies a=2,b=6\implies g(a,b)=c=-36$

so the point we're looking for is (2, 6, -36).

6 0

3 years ago

What is 6.23% of 100

jenyasd209 [6]

Answer:

6.23

Step-by-step explanation:

Percent means 'per 100'. So, 6.23% means 6.23 per 100 or simply 6.23/100. If you divide 6.23 by 100, you'll get 0.06230000000000001 (a decimal number).

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3 years ago

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