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2 years ago

10

Please help me with this problem.

2 answers:

Harrizon [31]2 years ago

7 0

Answer:

60

Step-by-step explanation:

$45^{2} +b^{2} =75^{2} \\2025+b^{2}=5625\\b^{2} =3600\\b=60$

Nesterboy [21]2 years ago

5 0

Answer:

60 m

Step-by-step explanation:

use Pythagorean Theorem:

a = missing side

a² + 45² = 75²

a² + 2025 = 5625

a² = 3600

a = $\sqrt{3600}$

a = 60

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How is this worked out ? im confused.

Rudik [331]

Answer:

From the given ratio for $tan\theta=\frac{4}{5}$ we found the values are

$sin\theta=4$

$cos\theta=5$

$csc\theta=\frac{1}{4}$

$sec\theta=\frac{1}{5}$

$cot\theta=\frac{5}{4}}$

Step-by-step explanation:

Given the ratio for $tan\theta=\frac{4}{5}$

We have to find the rest of trignometric functions:

$tan\theta=\frac{4}{5}\hfill (1)$

$tan\theta$ can be written as

$tan\theta=\frac{sin\theta}{cos\theta}\hfill (2)$

Comparing equations (1) and (2) we get

$tan\theta=\frac{sin\theta}{cos\theta}=\frac{4}{5}$

$\frac{sin\theta}{cos\theta}=\frac{4}{5}$

Equating the coressponding numerator and denominator respectively

Therefore $sin\theta=4$ and $cos\theta=5$

We can find $csc\theta$

$csc\theta=\frac{1}{sin\theta}$

$=\frac{1}{4}$ (since $sin\theta=4$ )

$csc\theta=\frac{1}{4}$

We can find $sec\theta$

$sec\theta=\frac{1}{cos\theta}$

$=\frac{1}{5}$ (since $cos\theta=5$ )

$sec\theta=\frac{1}{5}$

To find $cot\theta$ :

$cot\theta=\frac{1}{tan\theta}$

$=\frac{1}{\frac{4}{5}}$

$=1\times \frac{5}{4}$

$=\frac{5}{4}}$

$cot\theta=\frac{5}{4}}$

7 0

3 years ago

A 1. Choose the sign that correctly compares these fractions: 1/10 8/100. <br>

Ghella [55]

Answer:

1/10 > 8/100

Step-by-step explanation:

because we have 0.1 against 0.08 therefore 1/10 is greater and the sign is >

4 0

2 years ago

Giving brainliest for the correct answer

maks197457 [2]

Answer:

72 is the surface area

SA=2lw+2lh+2hw

l=6

w=3

h=2

8 0

2 years ago

Find the sum of like terms 7y+2y

never [62]

Answer:

9y

Step-by-step explanation:

since the symbols are the same you just add and keep the symbol.

3 0

2 years ago

1. 2(y+1) for y=2

pashok25 [27]

The answers are:
1. 6
2. I would go for 9 but I'm not for sure
i hope this helped

5 0

3 years ago