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natulia [17]
3 years ago
6

If 8, x, 18 form a geometric sequence , find a value for x

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
6 0

Answer:

13

Step-by-step explanation:

it goes up by 5 every time

katrin [286]3 years ago
4 0

Answer: 13

Step-by-step explanation: It goes up by 5 so 8, 13, 18, 23, and etc

Please tell me if I'm wrong

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PLEASE HELPPPP!!!!!!
Sloan [31]

Step-by-step explanation:

y=kx

say that y is the original prince and x is the sale price

15=k(10)

15/10=k

3/2=k

you can check with the next problem to check if it is the same

25=k(20)

25/20=k

5/4=k

so you take 5/4-3/2=-1/4 so the constant is -1/4

Hope that helps :)

8 0
3 years ago
On a mountain, the temperature decreases by 18°F every 5000 feet. What integer represents the change in temperature at 20,000 ft
attashe74 [19]
<span>To find this answer, use multiples. For every 5000 feet ascended, deduct 18 degrees. For 20,000 feet, which is (4 * 5000), use (4 * -18). In this case, the answer is -72 degrees F, so the integer described would be -72.</span>
7 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
fenix001 [56]

Answer:

2, 7, 114

Step-by-step explanation:

(3 + 0.5x)(38 - 4x)

114 + 19x - 12x - 2x²

-2x² + 7x + 114

7 0
3 years ago
It’s urgent please help
Inessa [10]

Answer:

domain is always the x values and y values are the range of x.

It's option A

5 0
3 years ago
The volume of a cuboid is 672.5 cm3 and it's height is 10 cm. Find it's corresponding base area.
Leto [7]
Well the volume of a cube is lbh that is length×breath×height which is given to be equal to 672.5cm3 thus lbh=672.5cm3
lb×10cm=672.5cm3 (putting value of h) solve and u obtain the Base area! (lb)
3 0
3 years ago
Read 2 more answers
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