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3 years ago

Kiersten has performed in a half dozen

Mathematics

1 answer:

nata0808 [166]3 years ago

7 0

Answer:

she can arrange the posters 12 different ways

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Are 20/24,24/28,28/32 equivalent fractions

allsm [11]

No, they are not.
Have a good day!

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2 years ago

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What is a ratio equivalent to 3:2? (not 6:1)

Akimi4 [234]

Answer:

9:6, 12:8, and 15:10 are all ratios equivalent to 3:2

Step-by-step explanation:

To find an equal ratio, you can either multiply or divide each term in the ratio by the same number (but not zero).

4 0

3 years ago

Prove that a triangle with the sides a - 1 cm to root under a

vivado [14]

Question is Incomplete, Complete question is given below.

Prove that a triangle with the sides (a − 1) cm, 2√a cm and (a + 1) cm is a right angled triangle.

Answer:

∆ABC is right angled triangle with right angle at B.

Step-by-step explanation:

Given : Triangle having sides (a - 1) cm, 2√a and (a + 1) cm.

We need to prove that triangle is the right angled triangle.

Let the triangle be denoted by Δ ABC with side as;

AB = (a - 1) cm

BC = (2√ a) cm

CA = (a + 1) cm

Hence,

${AB}^2 = (a -1)^2$

Now We know that

$(a- b)^2 = a^2+b^2 - 2ab$

So;

${AB}^2= a^2 + 1^2 -2\times a \times1$

${AB}^2 = a^2 + 1 -2a$

Now;

${BC}^2 = (2\sqrt{a})^2= 4a$

Also;

${CA}^2 = (a + 1)^2$

Now We know that

$(a+ b)^2 = a^2+b^2 + 2ab$

${CA}^2= a^2 + 1^2 +2\times a \times1$

${CA}^2 = a^2 + 1 +2a$

${CA}^2 = AB^2 + BC^2$

[By Pythagoras theorem]

$a^2 + 1 +2a = a^2 + 1 - 2a + 4a\\\\a^2 + 1 +2a= a^2 + 1 +2a$

Hence, ${CA}^2 = AB^2 + BC^2$

Now In right angled triangle the sum of square of two sides of triangle is equal to square of the third side.

This proves that ∆ABC is right angled triangle with right angle at B.

4 0

3 years ago

Simplify the following expression: (−4)(−2)(−3) a) −24 B) −11 C) 11 d)24

professor190 [17]

D
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7 0

3 years ago

The simplest form of square root of eighty can be written as a times square root of b, where a = and b = .

lyudmila [28]

The correct answer is:

A=4

B=5

hopes this helps you and future people!

8 0

2 years ago

Read 2 more answers