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klemol [59]
3 years ago
14

What are two types of scientific investigations

Mathematics
1 answer:
vazorg [7]3 years ago
6 0
Hypothesis and Analyses 
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If light travels 6.71 x 108 miles in one hour, how many miles will it travel in 90 minutes?
IRINA_888 [86]
6.71*108= 724.68 then divide that by 60 to see how far it goes per minute. Which is 12.078 then multiply by 90 so 1,087.02
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3 years ago
Which description below the equation <br> X/4=55
Mariana [72]

x/4 = 55

=> x = 55 × 4

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4 0
2 years ago
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ΔXYZ ≅ΔFED where m∠X = 50°, m∠Y=30°, m∠D=2y+10, XY =9 and EF=3x−12. Solve for x and y.
Delicious77 [7]

Answer:

The value of x is 7 and value of y is 45

Step-by-step explanation:

In ΔXYZ

∠X = 50°, ∠Y=30°

To Find ∠Z we will use angle sum property of triangle (Sum of all angles of triangles is 180°)

So,∠X + ∠Y + ∠Z = 180°

So,50°+30°+ ∠Z = 180°

∠Z=180°-80°

∠Z=100°

Now we are given that ΔXYZ ≅ΔFED

So, the corresponding sides are equal and the corresponding angles are equal.

So, ∠Z= ∠D

So, 100=2y+10

100-10=2y

90=2y

45=y

Now XY = EF

So, 9 = 3x-12

21=3x

7=x

Hence The value of x is 7 and value of y is 45

5 0
3 years ago
Which of the following number is not a perfect cube? 64 or 729 or 800 or 1331 can some1 say it fastt plsss
goldenfox [79]

Answer:

800

Step-by-step explanation:

9.28 is answer of cube 800

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3 years ago
1/2(4x+18)=5-(3x-9)
DanielleElmas [232]
X=-2 3/5
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3 years ago
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