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4 years ago

Please this part is hard for me to understand. Can anyone answer these please?

Mathematics

1 answer:

Liono4ka [1.6K]4 years ago

7 0

Answer:

Not 100 percent sure but number 2 and 3 dont make a polygen, they only make a line. so 0.

For the fourth one i am not 100 percent sure. I think it makes unlimited polygons.

Step-by-step explanation:

Again, not 100 percent sure.

The best way to find out is to draw them.

I matched the two points of 2 and 3 and they make a line they dont make a polygen as for the last one i dont think it makes any

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Please help so i can come out of the basement loll

Ber [7]

Answer:

(9,9)

Step-by-step explanation:

All you have to do is look down and across to the numbers. If you need help with the x and y here it is (x,y)

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3 years ago

Read 2 more answers

−3z+6b−7

Varvara68 [4.7K]

In −3z+6b−7, the first term is -3z. It's a variable term, since z is assumed to be a variable. The coefficient of this variable, z, is -3.

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3 years ago

Find the area of the surface. the part of the surface y = 5x + z2 that lies between the planes x = 0, x = 1, z = 0, and z = 1.

Alex787 [66]

Parameterize the part of the surface we care about, denoted $\mathcal S$ , by

$\mathbf r(u,v)=\langle u,5u+v^2,v\rangle$

with $0\le u\le1$ and $0\le v\le1$ .

Then

$\|\mathbf r_u\times\mathbf r_v\|=\|\langle5,-1,2v\rangle\|=\sqrt{4v^2+26}$

The area is given by the surface integral

$\displaystyle\iint_{\mathcal S}\mathrm dS=\int_{v=0}^{v=1}\int_{u=0}^{u=1}\|\mathbf r_u\times\mathbf r_v\|\,\mathrm du\,\mathrm dv$

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4 years ago

A building is 50 feet tall and casts a 25 foot shadow. If Mark is 6 feet tall, how long would

trasher [3.6K]

Answer:

Mark's shadow would be 3 feet.

Step-by-step explanation:

If a building is 50 feet tall and casts a 25 foot shadow, then the shadow of an object is 1/2 the length of the actual object.

This can be supported by the division problem:

50 ÷ 2 = 25

If Mark is 6 feet tall, then we need to divide 6 by 2 in order to find the length of the shadow.

6 ÷ 2 = 3

Therefore, Mark's shadow would be 3 feet.

Hope this helps! :D

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3 years ago

Read 2 more answers

Please help me fill in the blanks :)

guapka [62]

Answer:

Absolute value is the distance from numbers on a number line. The absolute value of -7 is 7 b/c it is 7 units from 0. The absolute value of 5 is 5 b/c it is 5 units from 0.

A negative number is a number that is negative. On a horizontal number line negative numbers are to the left.

A positive number is a number that is positive. On a horizontal number line positive numbers are to the right.

I don't understand the last paragraph though. Hope this helped :D

Step-by-step explanation:

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3 years ago

Please this part is hard for me to understand. Can anyone answer these please?​

Please this part is hard for me to understand. Can anyone answer these please?