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2 years ago

7

A sapling, or young tree, is planted in a garden. After 3 years, it is 180 cm tall. After 7 years, it is 368 cm tall. How tall w

ill the tree be after 10 years?

1 answer:

cestrela7 [59]2 years ago

3 0

548cm tall because if you add 180 to 368 it is 548.

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Answer fast! I don't understand how to do this. I have a test going on about exponent properties.

qwelly [4]

Answer:

$x^4yz$

Step-by-step explanation:

$\frac{(x^6y^3z^2)}{(x^2y^2z)}$ (This can be simplified, because when you divide expressions with exponents that have the same bases, you can subtract the exponents from the one with the corresponding base)

$\frac{(x^6y^3z^2)}{(x^2y^2z)}$

= $(x^(^6^-^2^)y^(^3^-^2^)z^(^2^-^1^))$ (Simplify)

= $x^4yz$

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2 years ago

An urn contains 8 red chips, 10 green chips, and 2 white chips. A chip is drawn and replaced, and then a second chip is drawn.

Harlamova29_29 [7]

Answer:

(A) 0.04

(B) 0.25

(C) 0.40

Step-by-step explanation:

Let R = drawing a red chips, G = drawing green chips and W = drawing white chips.

Given:

R = 8, G = 10 and W = 2.

Total number of chips = 8 + 10 + 2 = 20

$P(R) = \frac{8}{20}=\frac{2}{5}\\P(G)= \frac{10}{20}=\frac{1}{2}\\P(W)= \frac{2}{20}=\frac{1}{10}$

As the chips are replaced after drawing the probability of selecting the second chip is independent of the probability of selecting the first chip.

(A)

Compute the probability of selecting a white chip on the first and a red on the second as follows:

$P(1^{st}\ white\ chip, 2^{nd}\ red\ chip)=P(W)\times P(R)\\=\frac{1}{10}\times \frac{2}{5}\\ =\frac{1}{25} \\=0.04$

Thus, the probability of selecting a white chip on the first and a red on the second is 0.04.

(B)

Compute the probability of selecting 2 green chips:

$P(2\ Green\ chips)=P(G)\times P(G)\\=\frac{1}{2} \times\frac{1}{2}\\ =\frac{1}{4}\\ =0.25$

Thus, the probability of selecting 2 green chips is 0.25.

(C)

Compute the conditional probability of selecting a red chip given the first chip drawn was white as follows:

$P(2^{nd}\ red\ chip|1^{st}\ white\ chip)=\frac{P(2^{nd}\ red\ chip\ \cap 1^{st}\ white\ chip)}{P (1^{st}\ white\ chip)} \\=\frac{P(2^{nd}\ red\ chip)P(1^{st}\ white\ chip)}{P (1^{st}\ white\ chip)} \\= P(R)\\=\frac{2}{5}\\=0.40$

Thus, the probability of selecting a red chip given the first chip drawn was white is 0.40.

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2 years ago

True or false? 12-x=x-12 (for all values of x)

Bad White [126]

False: You can't use the commutative property on subraction.

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3 years ago

Olegator [25]

<span>answer is A. 35%

182 / 280 = 0.65

0.65 = 65%

100% - 65% = 35%</span>

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2 years ago

Read 2 more answers

I need the answer for this because i do not understand it

Gre4nikov [31]

Answer:

F(x) = x + 2

g(x) = x - 4

(f g)(x) =

Step-by-step explanation:

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2 years ago