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Nikolay [14]
3 years ago
10

! PLEASE HELP QUICKLY !

Mathematics
1 answer:
Travka [436]3 years ago
3 0

Answer:

see below

Step-by-step explanation:

y= 1/2x - 2

To find the x intercept, set y =0 and solve for x

0= 1/2x - 2

Add 2 to each side

2 = 1/2x -2+2

2 = 1/2x

Multiply by 2

2*2 = 1/2x *2

4 =x

The x intercept is 4

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A rectangular prism has a volume of 729 ft3. The length width and height are all the same. What is the is the length of each sid
swat32

Answer:

9 ft

Step-by-step explanation:

As length, width and height are same, then it is a square prism / cube

Volume of prism = 729 ft³

side³ = 729

side³ = 9³

Side = 9 ft

3 0
3 years ago
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Plz help I will mark you brainlist plz ​
joja [24]

Answer:

m = 12.9g

v = 8cm3

d = ?

d = m/v

d = 12.9g/8cm3

D = 1.6125g/cm3

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3 years ago
Given that the sec A = 13/5 and A is in QIV, determine exact value for the sin A.
AysviL [449]

Answer:

The exact value of sin A is opp/hyp = -12/13

Step-by-step explanation:

If A is in Quadrant IV then the "opposite side" is negative and the "adjacent side" is positive.  Since sec A = hyp / adj = 13 / 5 and since opp^2 + adj^2 must add up to hyp^2,   Therefore y = √(hyp^2 - adj^2), or

y = -√(13^2 - 25) = -√144 = 12.

The exact value of sin A is opp/hyp = -12/13

6 0
3 years ago
Negative 20 minus Positive 17
nikitadnepr [17]

Answer:

-3

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6 0
2 years ago
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Solve the equation sin2∅=2sin∅, domain 0°≤B≤360°
Ann [662]

Answer:

∅ = 90°

Step-by-step explanation:

Given;

sin2∅=2sin∅

sin2∅ = 2sin∅Cos∅

but, Sin²∅ + Cos²∅ = 1

       Cos²∅ = 1 - Sin²∅

       Cos ∅ = √(1 - Sin²∅)

sin2∅=2sin∅ ↓

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Let Sin∅ = P

2P( √(1 - P²)) = 2P

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√(1 - P²) = 1

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∅ = 90°

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