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bixtya [17]
3 years ago
9

6 Σ (12 – 4 i) i = 3

Mathematics
1 answer:
AnnyKZ [126]3 years ago
3 0

Answer:

- 24

Step-by-step explanation:

We have to get the value of the following sum as given.

\sum_{3}^{6} (12-4i)

This can be written in language as the summation of (12 -4i) where value of i ranges from 3 to 6.

\sum_{3}^{6} (12-4i)

= [12 - 4(3)] + [12 - 4(4)] + [12 - 4(5)] + [12 - 4(6)]

= 0 + [- 4] + [- 8] + [- 12]  

= - 24 (Answer)

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I need help with number 12 plz
OlgaM077 [116]

Answer:

347 is the initial spider population

Step-by-step explanation:

y = ab^x

is the formula for exponential growth and decay

a = the initial value

b is the growth or decay rate

b>1  it is the growth rate  (b-1) is the percent

0<b<1 it is the decay rate (1-b) is the percent

y = 347(1.2)^x

347 is the initial spider population

(1.2-1) = .2 = 20 % growth rate

6 0
3 years ago
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marta [7]

Answer:

P'=(0,3)

Step-by-step explanation:

P'=(-5+5, 7-4)

8 0
3 years ago
a vegetarian sandwich is in the aproximate shape of a cone. the height of the sandwich is 6 inches and the base diameter is 3.5
Olenka [21]

Answer: 19.2inches³

Step-by-step explanation:

The volume of a cone is calculated as:

= 1/3πr²h

where,

π = 3.14

r = radius = diameter/2 = 3.5/2 = 1.75

h = height = 6

Volume = 1/3πr²h

= 1/3 × 3.14 × 1.75² × 6

= 19.2325

= 19.2inches³

Therefore, the volume of the cone-shaped sandwich is 19.2inches³.

5 0
3 years ago
Which equation represents a direct variation?
8090 [49]

Answer:

Y = x y = kx. When the equation that describes direct variance is graphed in the Cartesian Plane, there is always a straight line moving through the origin. Think of it as the Slope-Intercept Shape of a line written as y = mx + b y = mx + b.

Step-by-step explanation:

4 0
3 years ago
Question
marin [14]

Answer:

Step-by-step explanation:

From the table attached,

x-intercept of the linear function is, the value of 'x' when f(x) = 0  

x = 3 [x-intercept]

Function 'g' is the sum of 2 and the cube root of the sum of three time x and 1.

g(x) = 2+\sqrt[3]{3x+1}

For x-intercept,

g(x) = 0

2+\sqrt[3]{3x+1}=0

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x = -3

Therefore, the x-intercept of function 'f' is different or greater than the x-intercept of function g.  

4 0
3 years ago
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