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3 years ago

Select the lengths that would form a right triangle.

Mathematics

1 answer:

allsm [11]3 years ago

8 0

Hello

The three different lengths are 39 as a leg 80 as a leg and 89 as the hypotneuse becasue of the Pythagoran therom. a^2+b^2=c^2
So your answers would be 39, 80, and 89

Hope this helps
Plz mark me as Brainliest

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Find an equation of variation in which y varies inversely as x and y=5 and x=21. Then find the value of y when x=10.

finlep [7]

Answer:

see explanation

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = $\frac{k}{x}$ ← k is the constant of variation

To find k use the condition y = 5 , x = 21

k = yx = 5 × 21 = 105

y = $\frac{105}{x}$ ← equation of variation

When x = 10, then

y = $\frac{105}{10}$ = 10.5

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3 years ago

Simplify (9x^3-4x+10)+(x^3+10x-9)

Alex

Simplify

9x^3 - 4x + 10 + x^3 + 10x - 9

Collect like terms

(9x^3 + x^3) + (-4x + 10x) + (10 - 9)

Simplify

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3 years ago

Why does 0.25 x 0.4 have a one decimal place in the product

Dafna11 [192]

The product of these numbers are 0.100
since 0.100 is same as 0.1
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COMMON SENSE

4 0

3 years ago

The dance team traveled to a competition and traveled in two vans. The first van transported 2 adults and 5 students and cost $7

Shtirlitz [24]

Answer: $9

Step-by-step explanation:

Let the cost for adults be a

Let the cost for students be b.

The first van transported 2 adults and 5 students and cost $77. This will be:

2a + 5b = $77

The second van transported 2 adults and 7 students and cost $95. This will be:

2a + 7b = $95

2a + 5b = 77 ...... equation i

2a + 7b = 95 ........ equation ii

Subtract equation ii from I

-2b = -18

b = 18/2

b = $9

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Put the value of b into equation i

2a + 5b = 77

2a + 5(9) = 77

2a + 45 = 77

2a = 77 - 45

2a = 32

a = 32/2

a = 16

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3 years ago

Which number has the greatest value? a) 0.38 b) 08.2 c) 02.8 d) 2.80

Elis [28]

Answer:

the correct answer would be b)8.2

Step-by-step explanation:

6 0

3 years ago

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