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WITCHER [35]
3 years ago
11

2. XYZW is a parallelogram with diagonals XZ and YW that intersect at point A.

Mathematics
1 answer:
sergeinik [125]3 years ago
4 0

Answer:

AW=10

Step-by-step explanation:

In a parallelogram opposite sides are congruent meaning XA and AZ are congruent. YA and AW are congruent. So...

Solving for XA and AZ

 XA=AZ

3m=5m-4

-2m=-4

m=2

If YW=10m then 10 x 2 = 20

20 divided by 2 = 10

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find the sum of a 9-term geometric sequence when the first term is 4 and the last term is 1,024 and select the correct answer be
olasank [31]
Hello,

u_{1} =4\\
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 u_{3} =4*q^2\\
...\\

 u_{9} =4*q^8\\\\
==\textgreater\ 4*q^8=1024\\
==\textgreater\ q^8=256\\
==\textgreater\ q=2\mbox{( and there is a problem in the question) } \ or \ q=-2\\
if\ q=2 \ then\  \sum_{i=0}^{8}\ 4*(2)^i= 4*\dfrac{1-2^9}{1-2} =2044\\

if \ q=-2 \ then\ \sum_{i=0}^{8}\ 4*(-2)^i= 4*\dfrac{1-(-2)^9}{1+2} =684\\





Answer B (but see the problem)
7 0
3 years ago
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If cos theta = 1/4 and 0 degrees, find tan theta
Zina [86]
What? Sorry can’t understand
8 0
3 years ago
Rewrite the equation of the line 5y = -1/4x - 6 in standard form
netineya [11]

Answer:

D

Step-by-step explanation:

The equation of a line in standard form is

Ax + By = C

Given

5y = - \frac{1}{4} x - 6 ( multiply through by 4 to clear the fraction )

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7 0
3 years ago
What can you predict regarding the probability of the coin landing heads up?
sattari [20]

Answer:

B

Step-by-step explanation:

the frequency will change for each trial so a is wrong

b yea the probability should increase for either head or tail as the experiment progresses

c it will be impossible to get the frequency of head to equal the frequency of tails

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the answer is B

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5 0
3 years ago
For each of the following pairs of signed integers (2’s complement), subtract the second from the first. Show the decimal equiva
Dmitry_Shevchenko [17]

Answer:

The answers are

a)111010 - 001111 = 101011 = 43

b) 000100 - 011000 = 111111111 (overflow) = -20

c) 010001 - 011010 = 11111111 (overflow) = -9

d) 010000 - 100100 = 1111111 (overflow) = -20

Step-by-step explanation:

a)111010 = 1×2⁵+1×2⁴+1×2³+0×2²+1×2¹+0×2⁰ = 32+16+8+0+2+0= 58

001111 = 0×2⁵+0×2⁴+1×2³+1×2²+1×2¹+1×2⁰ = 8+4+2+1=15

111010 - 001111 = 101011 = 43

b) 000100 = 0×2⁵+0×2⁴+0×2³+1×2²+0×2¹+0×2⁰ = 4

011000 = 0×2⁵+1×2⁴+1×2³+0×2²+0×2¹+0×2⁰  = 24

000100 - 011000 = 1111111111 (overflow), 4 - 24 =-20

c)  010001 = 1×2⁴+1×2⁰ = 17

011010 = 1×2⁴+1×2³+1×2¹ = 26

010001 - 011010 = 11111111 (overflow) 17-26=-9

d) 010000 = 1×2⁴ = 16

100100 = 1×2⁵+1×2² = 36

010000 - 100100 = 1111111 (overflow) 16-36=-20

3 0
3 years ago
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