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Lubov Fominskaja [6]
3 years ago
11

Four is no less than the quotient of a number x and 2.1.

Mathematics
1 answer:
g100num [7]3 years ago
3 0
21/x greater than or equal to 4. I think
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Using the geometric mean and Pythagorean theorem, calculate the values of the missing sides. Round your answers to the thousandt
Pachacha [2.7K]

Answer:

a = 9.849

b = 20.25

c = 491.03

Step-by-step explanation:

By using Pythagoras theorem in the right triangle BDC,

(Hypotenuse)² = (Leg 1)² + (Leg 2)²

BC² = BD² + DC²

a² = 9² + 4²

a = \sqrt{(81+16)}

a = \sqrt{97}

a = 9.8489

a ≈ 9.849 units

By mean proportional theorem,

\frac{\text{DC}}{\text{BD}}=\frac{\text{BD}}{\text{AD}}

AD × DC = BD²

b × 4 = 9²

b = \frac{81}{4}

b = 20.25 units

BY Pythagoras theorem in ΔADB,

AB² = AD² + BD²

c² = b² + 9²

c² = (20.25)² + 9²

c² = 410.0625 + 81

c = 491.0625

c = 491. 063 units

6 0
3 years ago
Is this correct ? check plsss...
d1i1m1o1n [39]
This looks one hundred percent correct to me and to check your answer you can plug in the answer you find to the first equation 


17=37+4f 
17=37+4(-5)
17=37-20
17=17 

great job!!
7 0
3 years ago
Read 2 more answers
In GeoTown, there are 210 teenagers that own a tablet. This is at least 4/5 of all teenagers that live in GeoTown. What is the m
hoa [83]
252, 210 divided by 5 = 42, 42 x 5 = 210 + 42= 252
7 0
3 years ago
Kevin needs to convert 620 millimeters per minute to meters per hour. Which conversion factors should he use?
Annette [7]
Try this option:
1 meter=1000 mm; 1 hour=60 min. From another side: 1 mm=0.001 m. and 1 min=1/60 h.
Using this rule:
620 mm/h=0.06*620 m/h=37.2 meters per hour.

answer: 0.06
7 0
3 years ago
What is the first quartile of the data displayed in this box-and-whisker plot?
ValentinkaMS [17]
4. 42,


Since Q1 is the first part of the box plot, and on the graph states
42
7 0
3 years ago
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