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3 years ago

The perimeter of a ∆ is 30cm if its sides are in the ratio 1:3:2, then it's greatest side is-----------------------------

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

6 0

Add the 3 ratios together: 1 + 3 + 2 = 6

Divide perimeter by total:

30/6 = 5

Multiply each ratio by 5:

1 x 5 = 5

3 x 5 = 15

2 x 5 = 10

The greatest side is 15 cm

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Whats the difference 5 2/7 - 3 4/7

umka21 [38]

$5 \frac{2}{7} - 3\frac{4}{7} =\frac{(5\times 7)+2}{7} -\frac{(3\times7)+4}{7} =\frac{37}{7} -\frac{25}{7} -\frac{37-25}{7} =\frac{12}{7}=\boxed{\bf{1\frac{5}{7}}}$

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4 years ago

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3 years ago

What is the ordered pair for Point T?<br> A. (1,5)<br> B. (0,5)<br> C. (5,0)<br> D. (5, 5

sammy [17]

Answer:

B.(0,5)

Step-by-step explanation:

Ordered pairs are written as (x,y)

x value of T is 0

y value of T is 5

Ordered pair for point T is (0,5)

6 0

3 years ago

Si lanzas una moneda justa 4 veces, ¿cuál es la probilidad

Alexeev081 [22]

Answer:

The probability of getting exactly 2 soles is 0.375.

Step-by-step explanation:

The question is:

If you toss a fair coin 4 times, what's the probability that you get exactly 2 soles?

Solution:

A fair coin has two parts.

On tossing a coin once there is 50-50 odds of both the sides.

So, the probability of one side is, <em>p</em> = 0.50.

It is provided that a fair coin is tossed <em>n</em> = 4 times.

The event of any of the sides showing up after the toss are independent of each other.

The random variable <em>X</em> defined as soles, follows a Binomial distribution with parameters <em>n</em> = 4 and <em>p</em> = 0.50.

The probability mass function of <em>X</em> is:

$P(X=x)={4\choose x}\ (0.50)^{x}\ (1-0.50)^{4-x};\ x=0,1,2,3,4$

Compute the probability of getting exactly 2 soles as follows:

$P(X=2)={4\choose 2}\ (0.50)^{2}\ (1-0.50)^{4-2}$

$=6\times 0.25\times 0.25\\\\=0.375$

Thus, the probability of getting exactly 2 soles is 0.375.

5 0

3 years ago

Are 14, 6 + 8, and (6 + 8) equivalent expressions? Explain your reasoning.

Sloan [31]

The expressions 14, 6 + 8, and (6 + 8) are equivalent because they are all equal to 1

<h3>Equivalent expression</h3>

6 + 8

= 14

(6 + 8)

= 14

The coefficient of (6 + 8) is 1, so, the expression remains the same.

<h3>What is equivalent expression?</h3>

Equivalent expressions refers to those expressions that work the same even though they look different.

The importance or significance of equivalent expression is that its makes expressions easier to work with and solve.

Therefore, the expressions 14, 6 + 8, and (6 + 8) are all equivalent to 14.

Learn more about equivalent expression:

brainly.com/question/15775046

#SPJ1

4 0

2 years ago