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Vera_Pavlovna [14]
3 years ago
6

A is a horizontal bar used in mathematical notation; in fractions it is the bar that separates the numerator from the denominato

r, in repeating decimals it indicates a group of repeating numbers.
Mathematics
1 answer:
pochemuha3 years ago
6 0
Vinculum is the bar that separates the numerator from denominator in a fraction
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I’m confused on this one
Murrr4er [49]

This one is a bit confusing without a diagram anyway. We'll assume the typical labeling where A and B are consecutive angles, so the transverse line AB through the parallels makes A and B supplementary:


A + B = 180 degrees


12x + 46 + 7x + 1 = 180


19x = 180 - 47 = 133


x = 133/19 - 7



6 0
3 years ago
A collection of dimes and quarters is worth $9.55. If the quarters were dimes and the dimes were quarters, the total value would
kvasek [131]

Number of dimes are 18 and number of quarters are 31

<em><u>Solution:</u></em>

Let "d" be the number of dimes

Let "q" be the number of quarters

value of 1 dime = $ 0.10

value of 1 quarter = $ 0.25

A collection of dimes and quarters is worth $9.55

value of 1 dime x number of dimes + value of 1 dime x number of quarters = 9.55

0.10d + 0.25q = 9.55 ---------- eqn 1

If the quarters were dimes and the dimes were quarters, the total value would be 7.60

quarters were dimes means , q = d

dimes were quarters means d = q

0.25d + 0.10q = 7.60 ----- eqn 2

Let us solve eqn 1 and eqn 2 to find "d" and "q"

Multiply eqn 1 by 2.5

0.25d + 0.625q = 23.875 ---- eqn 3

Subtract eqn 2 from eqn 3

0.25d + 0.625q = 23.875

0.25d + 0.10q = 7.60

( - ) ----------------------

0.525q = 16.275

q = 31

Substitute q = 31 in eqn 1

0.10d + 0.25q = 9.55

0.10d + 0.25(31) = 9.55

0.10d + 7.75 = 9.55

0.10d = 1.8

d = 18

Thus dimes are 18 and number of quarters are 31

5 0
3 years ago
Pls help will mark brainliest !
melamori03 [73]

Answer:

third and fourth one.

Not sure tho

7 0
3 years ago
which of the following statements best describes the effect of replacing the graph of y = f(x) with the graph of y = f(x) − 11?
ASHA 777 [7]
The graph of y = f(x) will shift down 11 units.
7 0
3 years ago
Read 2 more answers
A number multiplied by -8, subtracted from the sum of 14 and five times the number
Charra [1.4K]

Let us suppose the number is x. Now we try to make an algebraic expression going step by step.

Step 1:

Five times the number means 5 multiplied by x.

So it becomes 5x.

Step 2:

Sum of 14 and five times the number means 5x+14.

Step 3:

Number multiplied by -8 means -8x.

Step 4:

Subtract the expression in step (3) from expression in step (2)

5x+14-(-8x)

Now we can simplify it further,

5x+14+8x

Combining like terms,

13x+14

Answer: The final expression becomes 13x+14.

7 0
3 years ago
Read 2 more answers
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