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Nezavi [6.7K]
3 years ago
15

The question is in the picture. (Alegbra 1)

Mathematics
2 answers:
morpeh [17]3 years ago
6 0

Answer:

Step-by-step explanation:

4/5a*3/2a^2

4*3/5a*2a^2

12/10a^3

6/5a^3

therefore ur answer is 6/5a^3

Varvara68 [4.7K]3 years ago
6 0

Answer:

option 3

Explanation :

9.

          \frac{4}{5a} \cdot \frac{3}{2a^2}  = \frac{12}{10 a^3} = \frac{6}{5a^3}

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Simplify the expression by combining like terms<br>5/6a + 3/4b - 1/3a + 5/4b​
zaharov [31]

Answer:

1/2a + 29/12b

Step-by-step explanation:

\frac{5}{6}a + \frac{3}{4}b - \frac{1}{3}a+\frac{5}{4}b

(5/6a + -1/3a) + (3/4b + 5/3b)

1/2a + 29/12b

7 0
3 years ago
A product is made up of three parts that act independently of each other. If any of the parts is defective, the product is defec
natali 33 [55]

Answer:

The probability that a product is defective is 0.2733.

Step-by-step explanation:

A product consists of 3 parts. If any one of the part is defective the whole product is considered as defective.

The probability of the 3 parts being defective are:

P (Part 1 is defective) = 0.05

P (part 2 is defective) = 0.10 P (part 3 is defective) = 0.15

Compute the probability that a product is defective as follows:

P (Defective product) = 1 - P (non-defective product)

= 1 - P (None of the 3 parts are defective)

= 1 - P (Part 1 not defective) × P (Part 2 not defective) × P (Part 1 not defective)

=1-[(1-0.05)\times(1-0.10)\times (1-0.15)]\\=1-[0.95\times0.90\times0.85]\\=1-0.72675\\=0.27325\\\approx0.2733

Thus, the probability that a product is defective is 0.2733.

3 0
3 years ago
Read 2 more answers
During seventh grade Athletics 34 of the 87 girls are in off season lifting weights what are the what percentage of the girls ar
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Answer: 61% or exactly 60.9%

Step-by-step explanation:

if 34 are lifting weights then 53 (87-34) are not lifting weights and the percentage of 53/87 is 61%

4 0
4 years ago
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Two years ago a man was six times as old as his daughter. In 18 years he will be twice as old as his daughter. Determine their p
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Answer:

Step-by-step explanation:

f- 2 = 6(d-2)

f - 2 = 6d - 12

f = 6d - 12 + 2

f = 6d - 10      .................................... eq 1

f + 18 = 2(d+18)

f + 18 = 2d + 36

f= 2d + 36 - 18

f = d + 18       .......................................... eq 2

eq1=eq2

6d - 10 = 2d + 18

6d - 2d = 18 + 10

4d = 28

d = 28/4

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3 0
3 years ago
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Complete this proof.
Alja [10]

Answer:

1) distributive property

2) subtraction property of equality

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Step-by-step explanation:

Given : If \frac{1}{2}(8x+14)=39 , then x=8

To complete the proof :

Solution :

Following are the complete steps or proof of solving the given expression,

\frac{1}{2}(8x+14)=39  is given

4x + 7 = 39 - distributive property

4x = 32 - subtraction property of equality

x = 8 - division property of equality

3 0
3 years ago
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