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3 years ago

15

Please answer this question!!

2 answers:

Simora [160]3 years ago

6 0

Hello, and thank you for posting your questions here on brainly.

To find this, all we have to do is simplify 30:45 to its lowest terms.

The GCD (greatest common divisible) is 15. Now, we divide 30 and 45 by 15.

30 / 15 = 2

45 / 15 = 3

Which gives us the ratio 2:3.

According to this, the answer is B. 2.

Hope this helps! ☺♥

STatiana [176]3 years ago

3 0

B. 2 2:3=30:45 30/45 can be simplified to 2/3

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Which expression is equivalent to 27+15

Rom4ik [11]

27+15 is 2 so anything that is equal to 42 is equivalent to 27 +15

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3 years ago

Identify the graph of the equation. What is the angle of rotation for the equation?<br><br>xy=-2.5

Maurinko [17]

Answer:

It is B. hyperbola, 45 degrees.

SteIt is p-by-step explanation:

If we rotate the standard form x^2 - y^2 = 1 through 45 degrees we get xy = 1/2.

xy = -2.5 comes from x^2 - y^2 = -5 being rotated 45 degrees.

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4 years ago

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Which of the numbers is a rational number? A) B) 11 C) 100 D) 143

ASHA 777 [7]

I believe that is it 100, since it is the only number listed that has factors and multiples.

Hope this helps!

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=The%20%5C%3A%20%20value%20%20%5C%3A%20of%20%20%5C%3A%20%20%5Csqrt%7B6%20%2B%20%20%5Csqrt%7B6%2

saul85 [17]

$\large\underline{\sf{Solution-}}$

<u>Let us assume that:</u>

$\sf \longmapsto x = \sqrt{6 + \sqrt{6 + \sqrt{6 + ... \infty } } }$

We can also write it as:

$\sf \longmapsto x = \sqrt{6 + x }$

Squaring both sides, we get:

$\sf \longmapsto {x}^{2} =6 + x$

$\sf \longmapsto {x}^{2} - x - 6 =0$

By splitting the middle term:

$\sf \longmapsto {x}^{2} - 3x + 2x - 6 =0$

$\sf \longmapsto x(x - 3) + 2(x - 3 ) =0$

$\sf \longmapsto (x+ 2)(x - 3 ) =0$

<u>Therefore:</u>

$\longmapsto\begin{cases} \sf (x+ 2) =0 \\ \sf (x - 3) = 0 \end{cases}$

$\sf \longmapsto x = - 2,3$

<u>But x cannot be negative. </u>

$\sf \longmapsto x = 3$

Therefore, the value of the expression is 3.

$\large\underline{\sf{Verification-}}$

Given:

$\sf\longmapsto x=3$

We can also write it as:

$\sf\longmapsto x = \sqrt{9}$

$\sf\longmapsto x = \sqrt{6+3}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{9}}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+3}}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+\sqrt{9}}}$

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+\sqrt{6+3}}}$

This pattern will continue.

$\sf\longmapsto x = \sqrt{6 + \sqrt{6+\sqrt{6+...\infty}}}$

7 0

3 years ago

X=5 so what is (x+3)² =

AnnZ [28]

(3+x)²

(5+3)²=

8²=

64

.

.

.

.

7 0

3 years ago

Read 2 more answers