3 years ago

Is how much did a tree grow in one year a statistical question

Mathematics

2 answers:

Evgen [1.6K]3 years ago

7 0

No it probably is either mathematics or earth science

romanna [79]3 years ago

7 0

Nope. It actually deals with mathematics

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How to solve y-5=3-9 (y+2)

Goshia [24]

Y - 5 = 3 - 9(y + 2)

Expand the brackets

y - 5 = 3 - 9y + 18

Move y to one side, and constants to the other

10y = 26

Solve for y

y = (26 / 10) = 2.6

3 0

3 years ago

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A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. Each

Ostrovityanka [42]

Answer:

There were 7 small boxes and 14 large boxes shipped.

Step-by-step explanation:

This problem may be solved by a system of equations:

I am going to say that:

x is the number of small boxes used

y is the number of large boxes used

There were twice as many large boxes shipped as small boxes shipped

This means that $y = 2x$

Each small box of paper weighs 45 pounds and each large box of paper weighs 80 pounds. The total weight of all boxes was 1435 pounds.

This means that $45x + 80y = 1435$

So we have to solve the following system:

$y = 2x$

$45x + 80y = 1435$

$45x + 80(2x) = 1435$

$205x = 1435$

$x = \frac{1435}{205}$

$x = 7$

$y = 2x = 2(7) = 14$

There were 7 small boxes and 14 large boxes shipped.

7 0

3 years ago

What is the surface area of the square pyramid? (Figure is not drawn to scale.)

Reil [10]

Area of the base = 8^2 = 64

area of 1 traingle = 1/2 * 8 * 5.4 = 21.6

there are 4 triangular sides so their area = 4 * 21.6 = 86.4

Total surface area = 64 + 86.4 = 150.4 cm2

D

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3 years ago

Which triangle similarity postulate can be used to justify that triangle ABC is similar to triangle EFG?

sweet [91]

Where are the triangles..

sorry.

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3 years ago

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∠3 and ∠4 are complementary angles. m∠4=49° What is the measure of ∠3 ?

Oliga [24]

The measure of ∠3 is 131°

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3 years ago