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r-ruslan [8.4K]
3 years ago
15

Please help on number 3

Mathematics
1 answer:
Sedbober [7]3 years ago
6 0

Answer:

Step-by-step explanation:

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Please answer quick!!!
zavuch27 [327]
This is obviously a decreasing sequence.  Thus, the common ratio is the fraction 1/4, not the integer 4.  Eliminate C and D.  Next, at n=1, the value of the 1st term is 16, which is actually 16(1/4)^(1-1) = 16(1) = 16.  Thus, B is correct.

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3 years ago
Rectangle MNOP is similar to rectangle WXYZ. Which is the length of segment YZ?
DanielleElmas [232]

Answer: Do it yourself!

Step-by-step explanation:

7 0
3 years ago
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What is the value of x with clear working out please?
nirvana33 [79]

Answer:

Answer: <u> </u><u>x</u><u> </u><u>is</u><u> </u><u>4</u><u>6</u><u>°</u><u> </u>

Step-by-step explanation:

• Let's first find Angle ACB

{ \rm{ \angle ACB + 23 \degree + 90 \degree = 180 \degree}} \\  \\ { \rm{ \angle ACB = (180 - 90 - 23) \degree}} \\  \\ { \underline{ \rm{ \:  \angle ACB = 67 \degree}}}

• From alternative angles, x = Angle BAC.

• Since AB = AC, then Angle ABC = Angle ACB

{ \rm{x +  \angle ABC +  \angle ACB = 180 \degree}} \\  \\ { \rm{x + 67 \degree + 67 \degree = 180 \degree}} \\  \\ { \rm{x + 134 \degree = 180 \degree}} \\  \\ { \boxed{ \rm{x = 46 \degree}}}

5 0
3 years ago
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The ratio of children to teachers at preschool is 14:5. How many children are at the preschool if there are 30 teachers
elena55 [62]

If the ratio is 14 childen to every 5 teachers, and there are thirty teachers... there are 84 children. hope I could help!

6 0
3 years ago
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(8.18x10^-6)(1.15x10^-5)
ladessa [460]

Answer:

9.407x10-11

Step-by-step explanation:

8.18(9.407x(10)−11)10−6(1.15(9.407x(10)−11)10−5)

8.18(9.407x(10)−11)10−6(1.15(9.407x(10)−11)10−5)

8 0
3 years ago
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