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1 year ago

The perimeter of the equilateral triangle drawn below is 9b + 12.

Mathematics

2 answers:

dlinn [17]1 year ago

6 0

An equilateral triangle has 3 equal sides
If the perimeter of a triangle is 9b+12 then one side equals 3b+4 (divide by 3 because there are 3 sides

In the big triangle there are 6 sides so multiply 3b+4 by 6
=18b+24

Vladimir [108]1 year ago

4 0

Not sure but 4(9b+12)= 36b+48

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2 years ago

Answer and explain I’ll mark brainliest please help!!!!!

Papessa [141]

Answer:

230 were sold at the door

170 were sold in advance

Step-by-step explanation:

x=at door y=in advance

x+y=400

3x+2y=1030

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2 years ago

Marcus spent 3.25$ to wash his car. If one querter operates the car wash 60 seconds hiw long did it take him to wash his car.

ddd [48]

Answer:

answer=answer

Step-by-step explanation:

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3.25$ to wash the car.

60 seconds: 1 quarter

how many quarters is 3.25?

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6 0

2 years ago

In the triangle shown below what is the approximate value of x

kumpel [21]

it's a right triangle so you use Pythagoras' theorem.

√28²-14²=

√784 - 196 =

√588

24.24 units (rounded 24.25)

your answer is 24.25 units

5 0

2 years ago

Read 2 more answers

Ava used the following equation in order to solve a math problem involving integers.

AnnZ [28]

Answer:

The only equation which is incorrect is in option B.

Step-by-step explanation:

Eva used the following equation in order to solving integers, which is

$\frac{-h}{-k} = j$

⇒ $j = \frac{h}{k}$ ......... (1)

Now, if the equation Ava used is correct, then we have to find which of the given equations is not correct.

Now, in option A) it is given that $- j = \frac{- h}{k}$

⇒ $j = \frac{h}{k}$ which is same as equation (1).

In option B) it is given that $- j = \frac{- h}{- k}$

⇒ $j = - \frac{h}{k}$ which is not same as equation (1).

In option C) it is given that $- j = \frac{h}{- k}$

⇒ $j = \frac{h}{k}$ which is same as equation (1).

Again, in option D) it is given that $j = \frac{h}{k}$

⇒ $j = \frac{h}{k}$ which is same as equation (1).

Therefore, the only equation which is incorrect is in option B. (Answer)

5 0

3 years ago