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3 years ago

What is a ratio called with two equivalent measurements?

Mathematics

1 answer:

AleksandrR [38]3 years ago

7 0

Ratio with two equivalent measurements would be 1

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What is the set of all solutions to the equation \sqrt{x + 2}= {-x} x+2 =−xsquare root of, x, plus, 2, end square root, equals

NARA [144]

Answer:

$x = 2$ or $x = -1$

Step-by-step explanation:

Given

$\sqrt{x + 2}= {-x}$

Required

Find the possible values fo x

$\sqrt{x + 2}= {-x}$

Square both sides

$( \sqrt{x + 2})^2= ({-x})^2$

$x + 2 = x^2$

Equate to 0

$x^2 - x - 2 = 0$

Expand

$x^2 + x -2x - 2 = 0$

Factorize:

$x(x + 1) - 2(x + 1) = 0$

$(x -2)(x +1) = 0$

Split:

$x - 2 = 0$ or $x + 1 = 0$

$x = 2 + 0$ or $x = 0-1$

$x = 2$ or $x = -1$

3 0

2 years ago

What other ways can you put 36/-12 or 36/12

OLga [1]

Answer:

-18/6 18/6 or 9/3, -9/3 or 3/1, -1/3

Hope this helps

7 0

3 years ago

Read 2 more answers

6 workers can build a wall in 30 days. If after 6 days 3 more workers join, find the number of days to build the same wall?

viktelen [127]

The wall can be built in 22 days by 6 workers in first 6 days and 9 workers in the rest of time.

<h3>How to use inverse proportionality to determine building time of a wall</h3>

In this question we must use the definition of inverse proportionality, in which the number of workers ( $n$ ), no unit, is inversely proportional to the building time ( $t$ ), in days.

According to the statement, 6 workers spent 6 days building a wall and there are 24 days left for completion, but 3 more workers entered to reduce building time, which can be represented by the following expression:

$x = 24\,days \times \frac{6}{9}$

$x = 16\,days$

In this scenario, the wall can be built in 22 days. $\blacksquare$

To learn more on inverse proportionality, we kindly invite to check this verified question: brainly.com/question/4838941

4 0

2 years ago

Jamelia estimates the square root of 72 in the following way:

Zigmanuir [339]

Part a)
we have that
√72
√72-----> √(2*36)=√2*√36 is not 2*√36------> this is the error
√2*√36=√2*√6²-----> √2*(6)----> 6√2

alternative method
72 is equal to-------> 2³*3²
therefore
√72-----> √[2³*3²]----->√ 2³*√3²-------> (2√2)*(3)-----> 6√2

Part b)Estimate the square root of 72 to the nearest tenth

we know that
√2 is equal to 1.41
so
√72=6√2------> 6*1.41-----> 8.46----> 8.5

the answer Part b) is 8.5

8 0

2 years ago

How do you do this plz help

maria [59]

Multiplication by a factor less than 1 will result in a smaller image.
Selections A, D, F.

7 0

3 years ago

Read 2 more answers