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____ [38]
3 years ago
15

What is the 30 60 90 rule and the 45 45 90 rule (to do with triangles)

Mathematics
1 answer:
Sphinxa [80]3 years ago
7 0
The 30,60,90 - the hypotenuse is equal to twice the length of the shorter leg , the hypotenuse side =2x , the shortest side =x and the straight side is x square root 3
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BE READY, GAME SHOW
marta [7]

Let the required no. be x

Then the equation is-

(150/100)x = 750

=> x = 750 × (100/150)

=> x = 500

Ans- 750 is 150 percent of 500.

6 0
2 years ago
Read 2 more answers
Which sentence explains the correct first step in the solution of this equation?<br><br> 4(x−3)=9
kodGreya [7K]

Answer:

You will do the Distributive Property first.

Step-by-step explanation:

You will do the Distributive Property first.

4(x - 3) = 9 <u>distribute the 4 into the x and -3.</u>

4x - 12 = 9 <u>add -12 to both sides.</u>

4x = 21 <u>divide 4 on both sides.</u>

x = 5.25 is your answer.

4 0
3 years ago
Identify the domain and range of y = 4x - 5 + 3
Zepler [3.9K]

Answer:

\huge\boxed{\text{Domain:}\ D=\mathbb{R}=(-\infty;\ \infty)}\\\boxed{\text{Range:}\ R=\mathbb{R}=(-\infty;\ \infty)}

Step-by-step explanation:

y = 4x - 5 + 3 = 4x - 2

It's an equation of a line in the slope-intercept form.

y = 4x - 2 → f(x) = 4x - 2 - it's a lienar function.

The domain of a linear function is the set of all real numbers.

If a slope of linear function is different than 0, then the range is the set of all real numbers.

5 0
3 years ago
The equation x2 - 9 = 0 has<br> real solution(s).<br> DONE
Andru [333]

Answer:

{-3, 3}

Step-by-step explanation:

x^2 - 9 = 0 can be written in factored form as (x -3)(x + 3) = 0.  Letting each factor equal zero separately and solving for x, we get x:  {-3, 3}

5 0
3 years ago
What best describes the number 5? write prime, composite, neither prime nor composite, or both.
Wewaii [24]
<span>Prime is the best option describes the number 5.The number 5 is a prime because prime can be divided evenly by 1, or itself. And it must be a whole number greater than 1.But 6 can be divided evenly by 1, 2, 3 and 6 so it is NOT a prime number (it is a composite number).</span>
3 0
3 years ago
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