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snow_tiger [21]

4 years ago

6

Which of the following sets of numbers could be the lengths of the sides of a triangle? A. 3.5 cm, 7 cm, 10.5 cm B. 3.5 cm, 7 cm

, 14 cm C. 3.5 cm, 3.5 cm, 3.5 cm D. 3.5 cm, 5 cm, 10 cm

2 answers:

Marianna [84]4 years ago

6 0

c
because the question does not specify the type of triangle. so the best is a right angled triangle.

trapecia [35]4 years ago

5 0

Option c
Because the sum of two sides of a triangle is greater than the third side

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What is the improper fraction as a mixed number : 7/2

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Answer:3 1/2
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3 years ago

A child that is 1.4 meters tall is standing next to a flagpole. The child's shadow is 1.2 meters long. At the same time, the sha

koban [17]

The flag pole is $8.75 \: m$ or write it as $9 \: m$ tall.

Step-by-step Explanation:

Let "p" be the height of the flag pole.

The ratio of the child height to the pole height is the same as the ratios of their respective shadows, so,

$\frac{1.4}{p} = \frac{1.2}{7.5}$

Now, Cross multiply :-

$1.2 \times p = 1.4 \times 7.5$

→ $1.2 \times p = 10.5$

→ $p = \frac{10.5}{1.2}$

→ $p = 8.75$

This $8.75$ can be rounded off to $9$ as it ends with $.75$

So, the flag pole is <u>9 metres</u> tall.

5 0

2 years ago

Which of the following occurs within the solution process for 3√5x-2-3√4x=0

topjm [15]

For this case we have the following expression:

$\sqrt [3] {5x-2} - \sqrt [3] {4x} = 0$

If we add to both sides of the equation $\sqrt [3] {4x}$ we have:

$\sqrt [3] {5x-2} = \sqrt [3] {4x}$

To eliminate the roots we must raise both sides to the cube:

$(\sqrt [3] {5x-2}) ^ 3 = (\sqrt [3] {4x}) ^ 3\\5x-2 = 4x$

So, the correct option is the option c

Answer:

Option C

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