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Lelu [443]
3 years ago
10

What is the following product? (xsqrt7 - 3sqrt8)(xsqrt7 -3sqrt8)

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
6 0

Answer:

See the answer below

Step-by-step explanation:

x²s²q²r²t²49 - 6xs²q²r²t²112 + 9s²q²r²s²64

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In a particular triathlon the athletes cover 1/24 of the total distance by
pav-90 [236]

Answer:

15/8

Step-by-step explanation:

Let "d" be the total distance, that is, the distance for swimming (s), running (r) and going by bike (b).

d = s + r + b   [1]

1/24 of the total distance is covered by  swimming.

s = 1/24 d   [2]

1/3 of the distance is covered by running.

r = 1/3 d  [3]

If we replace [2] and [3] in [1], we get

d = 1/24 d + 1/3 d + b

b = d - 1/24 d - 1/3 d

b = 24/24 d - 1/24 d - 8/24 d

b = 15/24 d = 5/8 d

The ratio of  the distance covered by bike to the distance covered by running is:

b/r = (5/8 d)/(1/3 d) = 15/8

5 0
3 years ago
3cm
omeli [17]

Answer:

can u attach the diagram

Step-by-step explanation:

7 0
3 years ago
Mr. Rives' rotating sprinkler waters his lawn up to a radius of 7 feet. What is the maximum number of square feet of lawn mr. Ri
zaharov [31]

Answer:

Step-by-step explanation:

Mr. Rives' rotating sprinkler waters his lawn up to a radius of 7 feet. The formula for determining the area of a circle is expressed as

Area = πr²

Where

π is a constant whose value is 3.14.

r represents the radius if the circle.

The area covered by one of Mr. Rives' rotating sprinkler would be

3.14 × 7² = 3.14 × 49 = 153.86ft²

Therefore, the maximum area of lawn that two sprinklers can cover would be

153.86 × 2 = 307.72 ft²

3 0
3 years ago
Which of the following is equivalent to 18-V-25
EastWind [94]

Answer:

the correct answer is 18 - 5i.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
A mechanic is paid $61,490 in salary for a year. Assuming there are 26 pays in a year, what is her biweekly (average) salary? $3
Phoenix [80]

Answer:

$2,365

Step-by-step explanation:

Divide $61,490 by 26...

7 0
2 years ago
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