3 years ago

How do I complete the square?

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

6 0

You have to set them all equal to 0 and then factor it out.

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2x - y2<br> Z-5<br> Evaluate when x = 2, y = 4<br> z=3

kolezko [41]

Answer:

Putting the value in x = 2 , y =4 in 2x - 2y we get,

2 × 2 - 4× 2= 4-8 = -4

Putting the value in z = 3 in z - 5 we get,

z - 5 = 3 - 5 = -2

5 0

2 years ago

From her window, Carmella looks up to the top of a neighboring building at an angle of 46°. Her

Vinil7 [7]

Answer:

$270.3\ ft$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

In the right triangle ADE

Find the value of h1

See the attached figure

h1=AD

$tan(25\°)=\frac{h_1}{180}$

Solve for h1

$h_1=(180)tan(25\°)\\h_1=83.94\ ft$

step 2

In the right triangle ABC

Find the value of h2

See the attached figure

h2=BC

$tan(46\°)=\frac{h_2}{180}$

Solve for h2

$h_2=(180)tan(46\°)\\h_2=186.40\ ft$

step 3

Find the height of the neighboring building

we know that

The height of the neighboring building is equal to

$h=h_1+h_2$

substitute the values

$h=83.94+186.40=270.34\ ft$

Round to the nearest tenth of a foot

$h=270.3\ ft$

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3 years ago

B(n)=1 (-2) n-1 what is the fourth term

sveta [45]

Answer:

b(4) = -8

Step-by-step explanation:

We are to find the 4th term.

n = 4

b(n) = 1(-2)ⁿ⁻¹

b(4) = 1(-2)⁴⁻¹

b(4) = 1(-2)³

b(4) = 1(-8)

b(4) = -8

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2 years ago

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10 to the power of 2 +10 to the powers of three

yulyashka [42]

10x10= 100
10x10x10=1000
100+1000=10,000

4 0

2 years ago

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Dan earns £360 over the course of a five-day week. How much is that per day?

atroni [7]

Answer:

£72

Step-by-step explanation:

£360/5= £72

6 0

2 years ago

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