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Liula [17]
2 years ago
9

Multiply the fraction and simplify the answer 2/5×5/7×1/2

Mathematics
1 answer:
beks73 [17]2 years ago
6 0
2/5 * 5/7 * 1/2                   <== Group first pair of fractions to make
                                          multiplication easier

(2/5 * 5/7) * 1/2                 <== Multiply fractions in parentheses, keeping in
  <span> (10/35) </span>                            mind all rules of fraction multiplication (i.e.
     (2/7)                              cross-multiplying, etc.)

  2/7 * 1/2                          <== Multiply remaining fractions

       1/7        

The problem simplifies to 1/7.
Hope that helped =)
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Compute i^1+i^2+i^3....i^99+i^100
fgiga [73]

Good morning ☕️

Answer:

<h3>i¹ + i² + i³ +. . .+ i⁹⁹ + i¹⁰⁰ = 0</h3>

Step-by-step explanation:

Consider the sum S = i¹ + i² + i³ +. . .+ i⁹⁹ + i¹⁰⁰

S =  i¹ +  i² +  i³ + . . . + i⁹⁹  +  i¹⁰⁰

S = a₁ + a₂ + a₃ +. . . + a₉₉ + a₁₀₀

then, S is the sum of 100 consecutive terms of a geometric sequence (an)

where the first term a1 = i¹ = i  and the common ratio = i

FORMULA:______________________

S=(term1)*\frac{1-(common.ratio)^{number.of.terms}}{1-(common.ratio)}

_______________________________

then

S=i*\frac{1-i^{100} }{1-i}

or i¹⁰⁰ = (i⁴)²⁵ = 1²⁵ = 1  (we know that i⁴ = 1)

Hence

S = 0

7 0
2 years ago
Which are true statements about a translation? Select all that apply. The image is congruent to the pre-image. The image could b
Novay_Z [31]

Answer:

a} The image is congruent to the pre-image.

c} The image could be moved left or right.

d} The image could be moved up or down.

Step-by-step explanation:

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2 years ago
A function is expressed by the equation y=0.3x−6. For what value of the independent variable will the value of the function be e
Anna11 [10]

Answer:

0; 10; 20

Step-by-step explanation:

x is the independent variable

y is the dependent variable

y is dependent on x

a) For what value of the independent variable will the value of the function be equal to −6

y=0.3x−6

-6 = 0.3x-6

0=0.3x

x = 0

Therefore, if the independent variable is 0, the value of the function will be -6.

b) For what value of the independent variable will the value of the function be equal to −3

y=0.3x−6

-3 = 0.3x-6

0.3x = -3+6

0.3x = 3

x = 3/0.3

x = 10

Therefore, if the independent variable is 10, the value of the function will be -3.

c) For what value of the independent variable will the value of the function be equal to 0.

y=0.3x−6

0=0.3x-6

6 = 0.3x

x = 6/0.3

x = 20

Therefore, if the independent variable is 20, the value of the function will be 0.

7 0
2 years ago
What is the lateral area of a right rectangular prism that has rectangular bases measuring 3" by 5" and a height of 6"?
Mademuasel [1]

Answer:

The answer is the option A

96\ in^{2}

Step-by-step explanation:

we know that

The lateral area of a right rectangular prism is equal to

LA=P*h

where

P is the perimeter of the base

h is the height of the prism

Find the perimeter

P=2*(3+5)=16\ in

h=6\ in

substitute in the formula

LA=16*6=96\ in^{2}

6 0
2 years ago
Read 2 more answers
Each journal weighs about 280 grams.What is total weight of 3 jpurnals?
Phoenix [80]
1 journal = 280 grams 3 journals = 280 * 3 280 * 3 = 840 Total weight of 3 journals = 840 grams
8 0
2 years ago
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