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Len [333]
2 years ago
15

What is the 7th term of the geometric sequence where a1 = 625 and a2 = −125?

Mathematics
1 answer:
allsm [11]2 years ago
8 0
The seventh term of the sequence is
-1
—
25
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Help please!<br>figure out the "inflection point" of the following function<br>f(x)=5x³ + 2x² − 3x​
Artyom0805 [142]

Answer:

x = -2/15.

Step-by-step explanation:

Finding the second derivative:

f'(x) = 15x^2 +4x - 3

f"(x) = 30x + 4

30x + 4 = 0   for a point of inflection

x = -4/30 =  -2/15

So 30x + 4 is negative up to x =  -2/15 and positive thereafter.

So the curve passes from concave downward to concave upward at x = -2/15.

3 0
3 years ago
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Solve by factoring: x2 – 9x + 20 = 0
gayaneshka [121]

Answer:

Answer

Given equation is:

x

2

−9x+20=0

⇒x

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−5x−4x+20=0

⇒(x−4)(x−5)=0

⇒x=4andx=5

3 0
2 years ago
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Evaluate <br><br> 14y ÷ 5 - 4.9 for y = 6
Lubov Fominskaja [6]

Answer:

The final answer is 11.9

Step-by-step explanation:

14 x 6 = 84

84/5 = 16.8

16.8 - 4.9 = 11.9

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

8 0
2 years ago
Claire estimates the her brother is 4 feet tall. When they get measured at the doctor's office her brother's height is 4 feet 2
jasenka [17]

Answer: 2 is less than 5 so when she rounded she ended up with 4 feet and the doctors didn’t round

Step-by-step explanation:

I think this is correct

6 0
2 years ago
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What is the volume of this rectangular prism? 30.75 cm^3
Alex787 [66]

This question is incomplete. Because it lacks the diagram of the Rectangular prism. Find attached to this answer the appropriate diagram.

Answer:

295.2 cm³

Step-by-step explanation:

A Rectangular Prism is a 3 dimensional geometric shape.

The formula used to calculate the volume of the Rectangular Prism = Length × Width × Height

Length = 15cm

Height = 4.8cm

Width = 4.1cm

Volume of the Rectangular Prism = 15cm × 4.8cm × 4.1cm

= 295.2 cm³

3 0
3 years ago
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