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lilavasa [31]
2 years ago
5

The 3rd term in a geometric sequence is 40. The 5th term is 10. What are the possible values of the 4th term?

Mathematics
1 answer:
marishachu [46]2 years ago
5 0
To answer, we let x be the 4th term. We use the concept of geometric mean in order to answer this question. The ratio of the fourth term and the third term is equal to the ratio of the fifth term and the fourth term. That is,
                                  x/40 = 10/x
The values of x from the equation are 20 and -20. 
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25m/s to miles/h <br>Can anyone solve it?<br>With explanation if you can
Dimas [21]

25 meters per second x 60 seconds = 1500 meters per minute

1500 meters per minute x 60 minutes per hour = 90,000 meters per hour

1 mile = 1609.34 meters

90000/1609.34 = 55.92 miles per hour

 round answer to either 55.9 or 56 mph depending on what you need.

6 0
3 years ago
15
Evgesh-ka [11]

Answer:

Height = 14.4

Step-by-step explanation:

The diagonals meet at right angles. Interesting property.

The hypotenuse is the side of the rhombus = 15 cm

One of the sides of the small triangles created by the intersection of the diagonals = 24/2 = 12

You can find the other side of the the triangle by using the Pythagorean Theorem

a^2 + b^2 = c^2

c = 15

a = 12

b = ?

12^2 + b^2 = 15^2

144 + b^2 = 225

b^2 = 225 - 144

b^2 = 81

b = 9

The area of this right angle = 9 * 12/2 = 54

There are 4 of them so 4 * 54 = 216

That's the area of the rhombus.

The h= Area / b

b = 15

h = 216/15

h = 14.4

8 0
2 years ago
1. Which of the following statements is true about the numbers 4.5,-6,12,-1.1? * BRAINLIEST PRIZE!
seropon [69]

Answer:

4.5 and -1.1 are rational numbers, -6 is an integer, and 12 is a whole number.

Step-by-step explanation:

<u>Numbers:</u>

  • 4.5,-6,12,-1.1

<u>Let's see which option is correct:</u>

-1.1 is a rational number, 4.5 and -6 are integers, and 12 is a whole number.

  • 4.5 in not an integer, it is incorrect

-1.1 and -6 are rational numbers, 12 is an integer, and 4.5 is a whole number.

  • 4.5 is not a whole number, this is incorrect

4.5 and -1.1 are rational numbers, -6 is an integer, and 12 is a whole number.

  • Correct

12 is a rational number, -1.1 and -6 are integers, and 4.5 is a whole number.

  • -1.1 is not and integer, 4.5 is not a whole number, this is incorrect
6 0
3 years ago
Please help!!!!!!!!!!
My name is Ann [436]

Find an easy to read point such as (10, 40).

The ratio of y to x is 40/10 = 4/1.

Now look in your choices and find a point in which y is 4 times x.

The only such point is (5, 20).

Answer: C. (5, 20)

8 0
3 years ago
Read 2 more answers
Help with these too, please!!<br> Need 25 and 26
Inessa05 [86]

Answer:

25. Yes, it is a function, because none of the x outputs are repeating

5 0
2 years ago
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