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Korvikt [17]
3 years ago
10

Help!!

Mathematics
1 answer:
Mkey [24]3 years ago
4 0
1.  this is a series of squares  Formula is an = n^2

2. Arithmetic series with common difference d = -2.

an = a1 + (n-1)d  = 3 -2(n-1)


Cant see the rule for Number 3

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Solve 3/2^x-4=16 Two step equations
Lerok [7]

the answer is

x = 40/3



4 0
3 years ago
Someone EXPLAIN HOW + dont just answer!! i need an explanation and an answer
sdas [7]

Answer:

< - 5, 3.5 >

Step-by-step explanation:

A single translation is required to map A onto B

Consider the point (5, 3 ) on A and the corresponding point (0, 6.5) on B

the translation is < 0 - 5, 6.5 - 3 > = < - 5, 3.5 >


7 0
3 years ago
An exam worth 145 points contains 50 questions. The number of two-point questions is equal to 50 minus the number of five-point
abruzzese [7]

Answer:

Therefore there are 35 number of 2-point questions and 15 number of 5-point questions.

Step-by-step explanation:

i) let the number of 2 point question is x.

ii) let the number of 5 point questions be y

iii) total number of questions is 50

iv) therefore x + y = 50

v) it is also given that 2x + 5y = 145

vi) solving for the two equations found in iv) and v). Multiplying iv) by 2 we get

    2x + 2y = 100

vii) subtracting equation vi) from equation v) we get 3y = 45.

viii) Therefore y = 15.

ix) using the value in viii) and substituting in iv) we get x + 15 = 50.

    Therefore x = 50 - 15  = 35

x) Therefore there are 35 number of 2-point questions and 15 number of 5-point questions.

3 0
3 years ago
Read 2 more answers
( -2 ) × (4.5) equals
KatRina [158]

Answer:

-9

Step-by-step explanation:

A negative times a positive make a negative outcome. (Using rule of integers)

2×4.5=9

Make it negative to get -9

3 0
2 years ago
Read 2 more answers
Which equation can be used to find the perimeter of the rectangular chalkboard
Alik [6]

If the chalkboard is just rectangular we can just use:

(2 x L) + (2 x W)

or

L+L+W+W

L= Length

W= Width

4 0
3 years ago
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