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Sloan [31]
2 years ago
11

The first term of a geometric sequence

Mathematics
1 answer:
nadezda [96]2 years ago
7 0

Answer:

Step-by-step explanation:

a₆ = a₁r⁶⁻¹ = (-2)4⁵ = -2048

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Solve the question below.<br><br><br> 15<br><br> 17<br><br> 14<br><br> 16
Nadusha1986 [10]
To get the distance DC we proceed as follows:
AB-CD
=11-3
=8 
BC=15
hence using Pythagorean theorem
c²=a²+b²
c=DC
a=BC
b=8
thus
c²=15²+8²
c²=225+64
c²=289
thus
c=√289
c=17 units

Answer: B. 17 units
8 0
3 years ago
Write the equation of the line that passes through the point (1,-1) and has a slope of -4
Phantasy [73]

Answer:

y= -4 x+3

Step-by-step explanation: A(1, -1)

the equation is y - y (A)=m*( x-x(A) )

y-(-1)=-4(x-1)

y+1=-4x+4

y= -4x+4-1

y=-4x+3

y=-4x+4-1

3 0
3 years ago
Area of sector................................
sveticcg [70]

Answer:

A ≈ 25.1 cm²

Step-by-step explanation:

the area (A) of the sector is calculated as

A = area of circle × fraction of circle

  = πr² × \frac{\frac{4\pi }{9} }{2\pi }

  = π × 6² × \frac{\frac{4\pi }{9} }{2\pi }

  = 36π × \frac{\frac{4\pi }{9} }{2\pi }

  = 18 × \frac{4\pi }{9}

  = 2 × 4π

  = 8π

  ≈ 25.1 cm² ( to the nearest tenth )

3 0
2 years ago
For the pair of similar triangles, find the value of x.
Murljashka [212]

Find the scale between sides xz and gh

18/4 = 4.5

Multiply the length of fh by the scale to find x


6 x 4.5 = 27


x = 27

7 0
2 years ago
Can you help me with plz?
belka [17]

i think the answer is C

3 0
3 years ago
Read 2 more answers
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