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DerKrebs [107]
3 years ago
5

What is the next term of the geometric sequence? 189,63,21

Mathematics
2 answers:
Temka [501]3 years ago
8 0

Answer:

7

Step-by-step explanation:

189-63=126

63-21=42

126/3=42

42/3=14

21-14=

7

Vinvika [58]3 years ago
7 0

Answer:

7

Step-by-step explanation:

Common ratio of 3 so 21/3 = 7

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I'll name you the BRAINIEST if you can answer this.The scale factor for a model is 18 cm
bezimeni [28]

Answer:

  32.625 m

Step-by-step explanation:

You have the proportion ...

  18 cm : ___ m = 22.4 cm : 40.6 m

This can be rearranged to ...

  ___ m/(18 cm) = (40.6 m)/(22.4 cm)

Multiplying by 18 cm gives ...

  ___ m = (40.6 m)·(18/22.4)

  ___ m = 32.625 m

6 0
3 years ago
WILL GIVE BRAINIEST!!!!!!
Veseljchak [2.6K]

Answer:

The answer is y = x

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2 years ago
X + 2 = 5x solve for x.
ivanzaharov [21]

Answer:

x = 1/2 or 0.5

Step-by-step explanation:

Subtract 2 from both sides of the equation

x + 2 - 2 = 5x -2

Simplify

x = 5x -2

Subtract 5x from both sides of the equation

x = 5x -2

x - 5x = 5x - 2 - 5x

Solution

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3 years ago
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The number of milligrams Dh of a drug in a patient's bloodstream h hours after the drug is injected is modeled by the following
hodyreva [135]

We assume you intend

D(h)=35e^{-0.15h}

You want to evaluate this function for h=0 and h=8.

D(0)=35e^{0}=35\\D(8)=35e^{-0.15\cdot 8}\approx 10.54

The amount injected was 35 milligrams; 8 hours later 10.54 milligrams remained.

4 0
3 years ago
Image attached please help me out I will give you brainliest
lara [203]

Answer:

a) green: 0.3

yellow: 0.1

b) 12

Step-by-step explanation:

Unfortunately, I cant write on the table. But, I CAN help you with this question.

Since all probabilities have to add up to one, we can for an equation like this

(where y is yellow)

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This simplified is

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For b, we set 0.35x to 14. Dividing gives us:

14/0.35=1400/35=40.

Multiply 0.3 by 40, and you get 12.

Hope this helped!

7 0
3 years ago
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