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Vladimir [108]
3 years ago
14

PLS HELP!!! Thank You!!!

Mathematics
2 answers:
denis-greek [22]3 years ago
8 0

Answer:

21 years

Step-by-step explanation:

Given

Required

Determine the years it'll take to grow to the final height

This question depicts arithmetic progression and will be solved using

Where

Substitute these values in the given formula;

Convert all fractions to decimal

Open Brackets

Collect Like Terms

Divide both sides by 1.75

Then you have your answer.

Hope this helped!!<3

Annette [7]3 years ago
3 0

Answer:

[See Below]

Step-by-step explanation:

✦ With this information we can make an equation to solve for y(years).

  • The tree is 4 \frac{1}{2} feet already.
  • It's expected to grow 1 \frac{3}{4} feet per year.
  • We are trying to figure our how many years until it's 40 feet.

✦ So the equation would be:

  • 40 ÷ 1 \frac{3}{4} =y

✦ Turn the fractions into a decimals to make it easier:

  • 1 \frac{3}{4} =1.75

✦ Now Solve by Dividing:

  • 40 ÷ 1.75=22.8571429

✦ Round:

  • 22.8571429 rounded to the nearest tenth =22.9

So your answer would be \bold2\bold2\bold.\bold9 years.

~<em>Hope this helps Mate. If you need anything feel free to message me. </em>

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Which rock is mainly made up of quartz, feldspar, mica, and usually hornblende?
vazorg [7]

Answer:

What Minerals Form Rocks?

The list of minerals that commonly form rocks is short. With a little practice you will recognize most of them when you see them. Descriptions of some of the minerals, as they look in rocks, follow: Quartz: Quartz is the last mineral to crystallize, so in igneous rocks it never has any definite shape. In rocks, it does not show flat faces. It is usually gray in igneous rocks; gray, white, yellow, or red in sedimentary rocks; and gray or white in metamorphic rocks. It has a glassy, or sometimes waxy, look to it.

Potassic Feldspars*: (microcline, orthoclase) Potassic feldspars are pink or tan, sometimes white. They show flat, shiny faces in igneous rocks. The crystal grains are usually blocky and nearly rectangular. They look like good china.

Plagioclase Feldspars*: (albite, labradorite) Look like the potassic feldspars, except they are white to dark gray, sometimes black. They may show flashes of blue or green.

Micas*: (muscovite, biotite, phlogopite) Micas have very thin layers that peel off (or cleave) very easily. In rocks they are usually flakes or layers of flakes. Muscovite is silvery to brown; biotite is black; phlogopite is a reddish brown. Phlogopite may be found in marble.

Chlorite*: Like mica, but the flakes are usually not as thin and do not peel apart as easily. The color is medium to dark green, sometimes almost black but with a greenish tint.

Hornblende: Hornblende is dark green to black. It shows nearly flat, shiny faces in almost rectangular or long thin needle like crystals in rock. Hornblende is usually found in dark colored metamorphic rocks; sometimes in igneous rocks.

Actinolite and Tremolite: Actinolite and tremolite are usually in long thin blades or needle like crystals. Actinolite is dark green; tremolite is white to gray. The crystals may be parallel to each other, or spread from a point. Actinolite is usually found in schists or gneisses. Tremolite may be found in marble.

Olivine*: Olivine in rocks is an olive green to greenish yellow. In rocks it is in rounded grains. If there is much of it, it is almost sugary. It is found mostly in dark colored igneous rocks.

Calcite and Dolomite: The color is usually white, but can be other colors when impure. Crystal grains show flat shiny faces, often shaped like parallelograms. Calcite and dolomite are both soft. They are easily scratched with a steel point. Powdered calcite will fizz in white vinegar; dolomite will not. The minerals are found in limestone or dolostone ( the rock is dolostone, the mineral is dolomite) and marble.

4 0
3 years ago
Find the percent increase in volume when 1 foot is added to each dimension of the prism. Round your answer to the nearest tenth
Rudiy27

Answer:

10

Step-by-step explanation:

6 0
3 years ago
After you add both sides by 9. How can you solve for 5z in this equation <br> 5z-3=12
lutik1710 [3]

Answer:

OPTION A: Divide both the sides by 5

Step-by-step explanation:

We are given:  5z - 3 = 12

When we add 9 to both sides we get:

5z - 3 + 9 = 12 + 9

⇒ 5z + 6 = 21

⇒ 5z = 21 - 6 = 15

⇒ 5z = 15

To find the value of z we have to divide both the sides by 5.

i.e., $ \frac{5z}{5} = \frac{15}{5} $

⇒ z = 3.

3 0
3 years ago
Use arrow notation to describe the translation of point PC-9, 5) to point P4-6, 7).
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7/24.15 what is the anwser?
Ronch [10]

Answer:

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Step-by-step explanation:

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