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3 years ago

What is the value of the 8th term of the sequence 4,8,16,32,...?

Mathematics

2 answers:

DedPeter [7]3 years ago

6 0

The answer is 512 ! To find this answer you can try 4*2 8 times since 4 is multipled by 2 continuously as a pattern.

tia_tia [17]3 years ago

5 0

2 x 2= 4 4 x 2 = 8 8 x 2 = 16 16 x 2 = 32 32 x 2 = 64 64 x 2 = 128 128 x 2 = 256 256 x 2 = 512 Ans- 512 Hope this helps!

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How do you solve the equation 7(x -4) =14 (I need work)

lesya692 [45]

Answer:

x = 6

Step-by-step explanation:

7(x-4)=14 - Equation

7x-28=14 - Distribute the 7

7x=42 - Isolate the x by adding 28 to both sides

x=6 - Get answer by dividing 7 on both sides

5 0

3 years ago

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Item 20 A bathtub is draining at a constant rate. After 2 minutes, it holds 30 gallons of water. Three minutes later, it holds 1

levacccp [35]

Y=mx+c since its at constant rate
at (30,2)
30=m2+c-----(1)
at(12,3)
12=m3+c-----(2)
by multiplying (2)by 2.5,
30=7.5m+2.5c-----(3)
by comparing (1) and (3)
2m+c=7.5m+2.5c
5.5m+1.5c=0
5.5m=-1.5c
m=-1.5/5.5c----(4)
sub 4 into 1,
-6/11c+c=30
c=66
m=-1.5/5.5*66=-18
Equation : y=-18x+66

u can try substituting back 2min and 3 mins to verify it works

7 0

4 years ago

The segments shown below could form a triangle.

Vikki [24]

Answer:

false

Step-by-step explanation:

8 0

3 years ago

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A distribution of measurements is relatively mound-shaped with a mean of 40 and a standard deviation of 15. Use this information

MArishka [77]

Answer:

The proportion of measurements between 25 and 55

P( 25 ≤ X≤ 55) = 0.6826

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 40

Given that standard deviation of the Population = 15

Let 'x' be the random variable in normal distribution

Let 'X' = 25

$Z = \frac{x-mean}{S.D} = \frac{25-40}{15} = -1$

Let 'X' = 55

$Z = \frac{x-mean}{S.D} = \frac{55-40}{15} = 1$

Step(ii):-

The probability that between 25 and 55

P( 25 ≤ X≤ 55) = P( -1≤z≤1)

= A(1) - A(-1)

= A(1) + A(1)

= 2 × A(1)

= 2× 0.3413

= 0.6826

The proportion of measurements between 25 and 55

P( 25 ≤ X≤ 55) = 0.6826

Final answer:-

The proportion of measurements between 25 and 55

P( 25 ≤ X≤ 55) = 0.6826

4 0

3 years ago

Find the quotient. (5x^4 - 3x^2 + 4) ÷ (x+1)

lana [24]

Answer:x+12

Step-by-step explanation:

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3 years ago

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