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3 years ago

HELP FIND PERCENT OF CHANGE AND INCREASE OR DECREASE

Mathematics

2 answers:

elixir [45]3 years ago

6 0

These are my notes, I hope they help!!

Margaret [11]3 years ago

3 0

1. Decrease
2.Increase
3.Decrease
4.Increase
5.Decrease
6.Decrease

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Please help me with this :))

Hitman42 [59]

Hey love! <3

Answer:

Your answer is 306 units^2!

Step-by-step explanation:

Let's work this out together!

First let's find the top and bottom square's area.

6 x 15 = 90

Since there are not only two of those shapes but THREE, 90 x 3= 270.

So 270 is the surface area of the middle rectangles.

Step 2! Let's find the area of these triangles. We know that both of the triangles are 6 on each side.

Think back to geometry formulas. The formula for finding the area of a triangle is different then a square.

Triangle formula: Base x Height / 2 = A

Rectangle formula: Base x Height = A

So 6 x 6 is 36, now we have to divide it by two; which equals 18.

Since there are TWO triangles, we multiply 18 by two giving us the total surface area of the triangles, 36.

Now let's add our products together!

36 + 270 = 306

Thus the total surface area being 306 units^2

Hope this powers up that very-brainly brain of yours! Be sure to drop Brainliest (Only if you want to! No pressure) ( ಠ◡ಠ ) Sincerely, Kelsey from Brainly.

~ #LearnWithBrainly ~

7 0

3 years ago

A simple random sample of 85 is drawn from a normally distributed population, and the mean is found to be 146, with a standard d

omeli [17]

Answer:

anything below 136.5 or above 155.5

Step-by-step explanation:

the critical value from a Z distribution for the 99% confidence level is 2.576

so we just need to compute

146 + 2.576(34/sqrt(85))

and

146 + 2.576(34/sqrt(85))

8 0

4 years ago

Read 2 more answers

Narra situasiones de la vida rreal las cuales tienen la utilidad los numer9s enteros

Licemer1 [7]

Answer:

¿Podría explicar la pregunta con más detalle?

Step-by-step explanation:

5 0

3 years ago

find three consecutive odd integers such that 3 times the sum of all three is 24 more than the product if the first and second i

Delicious77 [7]

3 consecutive odd integers : x, x + 2, x + 4

3(x + x + 2 + x + 4) = x(x + 2) + 24
3(3x + 6) = x^2 + 2x + 24
9x + 18 = x^2 + 2x + 24
x^2 - 7x + 6 = 0
(x - 1)(x - 6) = 0

x - 1 = 0
x = 1

x - 6 = 0
x = 6 (this will not work...it is even)

ur 3 consecutive odd integers :
x = 1
x + 2 = 1 + 2 = 3
x + 4 = 1 + 4 = 5

8 0

3 years ago

A real estate company is interested in testing whether the mean time that families in Gotham have been living in their current h

In-s [12.5K]

Answer:

the answer d , the second answer is b, the third answer is b,

Step-by-step explanation:

5 0

4 years ago