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lorasvet [3.4K]

3 years ago

7

At the beginning of a chemistry experiment, the volume of liquid in a container was 2 mililiters. During the experiment, the vol

ume dropped to
1.1 milliliters. Find the percent of decrease.
The percent of decrease was

1 answer:

ahrayia [7]3 years ago

6 0

Answer:

5

Step-by-step explanation:

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Find a1 if Sn = 89,800, r = 3.4, and n = 10. Round to the nearest hundredth if necessary.

xxMikexx [17]

Answer:

$a_1=1.04$

Step-by-step explanation:

We have a geometric sequence with:

$Sn = 89,800$ , $r = 3.4$ , and $n = 10$

Where

Sn is the sum of the sequence

r is the common ratio

$a_1$ is the first term in the sequence

n is the number of terms in the sequence

The formula to calculate the sum of a finite geometric sequence is:

$S_n=\frac{a_1(1-r^n)}{1-r}$

Then:

$89,800=\frac{a_1(1-(3.4)^{10})}{1-3.4}$

Now we solve for $a_1$

$89,800(1-3.4)=a_1(1-(3.4)^{10})$

$a_1=\frac{89,800(1-3.4)}{1-(3.4)^{10}}\\\\a_1=1.04$

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Justify which of the following equations is a quadratic equation. If the equation is quadratic what is the value of a, b & c

White raven [17]

Answer:

x=5

Step-by-step explanation:

18x-11x-35=0

7x-35=0

7x=35

x=5

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From 1960 to 1980 the consumer price index increased from 29.6 282.4 if a pound of grapes cost $.14 in 1960 and the price of gra

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Step-by-step explanation:

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Read 2 more answers

Two lines intersect to form 4 angles. Angles 2 and 4 are vertical angles with angle 2 = 4x + 12 and angle 4 = 7x - 6. a) Find x.

Marat540 [252]

Answer:

Does this help?

Step-by-step explanation:

2 = 4x + 12 and angle 4 = 7x - 6

Use the slope-intercept form to find the slope and y-intercept.

Slope: 0

y-intercept: 4

Use the slope-intercept form to find the slope and y-intercept.

Slope: 0

y-intercept: 2

Use the slope-intercept form to find the slope and y-intercept.

Slope: 0

y-intercept: 4

Graph 2= 4x + 12

Slope: Undefined

y-intercept: No y-intercept

Plot each graph on the same coordinate system.

4=

2=

4=

2= 4x + 12

4= 7x − 6

5 0

3 years ago