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3 years ago

Please help me need help ASAP don’t know how to solve

Mathematics

1 answer:

salantis [7]3 years ago

3 0

Using the triangle similarity postulates, you can verify that

$\cfrac{12}{y}=\cfrac{y}{4}\\ \\ \Rightarrow y^2=48\\ \\ \Rightarrow y=\sqrt{48}=4\sqrt{3}$

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Helpp mee pleaseeeeeeee

mario62 [17]

Answer:

Step-by-step explanation:

2((8)+(12)+(6))

2(8+12+6)

2(26)

8 0

2 years ago

How do you solve this?

iragen [17]

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$\large\blue\textsf{\textbf{\underline{\underline{Question:-}}}}$

How do you solve this? [question in attachment]

$\large\blue\textsf{\textbf{\underline{\underline{Answer and How to Solve:-}}}}$

In order to find the perimeter of a shape, we should add all of its sides.

Since a triangle has only 3 sides, we add 3 sides together, like so:-

⇒ 9x-7+12x-13+3x+8

Combine like terms:-

➪ 9x+12x+3x-7-13-8

Which simplifies to

➪9x+15x-7-21

On further simplification,

➪24x-28

So we conclude that the perimeter of the triangle is 24x-28 units.

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7 0

2 years ago

Divya is organizing a training for two different seminars, one for teachers and one for mechanics. She has a total of 132 pens a

pishuonlain [190]

Step-by-step explanation:

Below is an attachment containing the solution.

6 0

3 years ago

Why is -a² is always negative (a ≠ 0) and why is (-a)² is always positive?

hjlf

$-a^2=(-1)\cdot a\cdot a$

Regardless of the sign of $a$ , we have $a\cdot a=a^2\ge0$ (never negative). But multiplying by -1 makes it negative.

On the other hand,

$(-a)^2=((-1)\cdot a)^2=(-1)^2\cdot a^2=1\cdot a^2=a^2$

which can never be negative for real $a$ .

6 0

2 years ago

The Sine Function

densk [106]

Answer:

C. Wave-like and repetitive

Step-by-step explanation:

I calculated it logically

8 0

2 years ago