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3 years ago

How many solutions does 33x+99=33x-99 have

Mathematics

2 answers:

Georgia [21]3 years ago

5 0

Answer:

Step-by-step explanation:

33x + 99 = 33x - 99

→ Minus 99 from both sides

33x = 33x - 198

→ Minus 33x from both sides

0x = 198

FrozenT [24]3 years ago

3 0

Answer:

No real solutions

Step-by-step explanation:

If you rearrange the equation:

33x - 33x = -99 - 99

0x = -198

Anything divided by zero is undefined/no real solution

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3 years ago

PLEASE HELPPPPPPPPPP

RUDIKE [14]

Answer:

y = 25.20 m

Step-by-step explanation:

By applying tangent rule in ΔABC,

tan(25)° = $\frac{\text{Opposite side}}{\text{Adjacent side}}$

= $\frac{y}{BC}$

BC = $\frac{y}{\text{tan}(25)}$ --------(1)

Now we apply tangent rule in ΔABD,

tan(15)° = $\frac{y}{BC+CD}$

tan(15)° = $\frac{y}{BC+40}$

BC + 40 = $\frac{y}{\text{tan}(15)}$

BC = $\frac{y}{\text{tan}(15)}$ - 40 -------(2)

From equation (1) and (2),

$\frac{y}{\text{tan}(25)}=\frac{y}{\text{tan}(25)}-40$

$\frac{y}{\text{tan}(25)}-\frac{y}{\text{tan}(25)}=-40$

$y[\frac{1}{\text{tan}(25)}-\frac{1}{\text{tan}(25)}]=-40$

y(2.1445 - 3.7321) = -40

1.5876y = 40

y = 25.1953

y ≈ 25.20 m

Therefore, measure of y is 25.20 m.

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3 years ago