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3 years ago

Which situation would be represented by zero?

Mathematics

2 answers:

Dominik [7]3 years ago

8 0

Answer:

I had 18 cookies and I ate them all.

Step-by-step explanation:

This situation is represented by zero because 18-18 is 0.

vodomira [7]3 years ago

7 0

Answer:

An altitude at sea level.

Step-by-step explanation:

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Z 3 - 2z 2 + 9z - 18.

aev [14]

group the 1st 2 terms and last 2 terms:

(Z63 -2z^2) + (9z-18)

factor out GCF:

z^2(z-2) + 9(z-2)

now factor the polynomial:

(z-2) (z^2+9)

5 0

3 years ago

Read 2 more answers

b is the midpoint of AC. a has coordinates (9.11), and B has coordinates (-10,5). find the coordinates of c.

Vedmedyk [2.9K]

C=(-10;5). If you want an explanation I would be happy to explain it

3 0

3 years ago

Please answer this quickly!

kari74 [83]

54/1,000

just do Length x Width x Height

7 0

3 years ago

A person is standing 50 ft from a statue. The person looks up at an angle of elevation of 8 degrees when staring at the top of t

borishaifa [10]

The height of the statue is 19.5 feet.

Why?

We can solve the problem using trigonometric formulas. In this case, we are going to use the trigonometric formula of the tangent.

We know that the person is standing 50ft from the statue, so, it will be the base of the two triangles formed by both angles (elevation and depression)

Using the trignometric formula, we have:

First triangle:

$tg(\alpha )=\frac{h_{1}}{base} \\\\tg(8\°)=\frac{h_{1}}{50ft}\\\\0.14*50ft=h_1\\\\h_1=7ft$

Second triangle:

$tg(\alpha )=\frac{h_{2}}{base} \\\\tg(14\°)=\frac{h_{1}}{50ft}\\\\0.25*50ft=h_1\\\\h_1=12.5ft$

Now, the total height of the statue will be:

$TotalHeight=h_1+h_2=7ft+12.5ft\\\\TotalHeight=19.5ft$

Have a nice day!

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3 years ago

Solve the system linear equations, using Gaussian Elimination

otez555 [7]

Just look it up on the web that will help a lot

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3 years ago