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3 years ago

What does the curvy (i) mean in a math equation?

Mathematics

2 answers:

Natasha2012 [34]3 years ago

3 0

It may just be a variable writen in italics or it means integer.

ikadub [295]3 years ago

3 0

Answer:

Step-by-step explanation:

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Find an equation of a line with the x- and y-intercepts below. Use exact fractions when necessary.

tamaranim1 [39]

Answer:

$y=\frac{5}{7}x-5$

Step-by-step explanation:

All lines in the plane are of the form

y = mx+b

The intersection with the Y-axis is obtained by replacing x with 0

The intersection with the X-axis is obtained by replacing y with 0

If we want that the Y-intercept = -5, then

-5 = m(0)+b

So b = -5

Our temporal equation is then

y = mx-5

If we want that the X-intercept = 7, then

0 = m(7)-5

7m = 5

m = 5/7

So our final equation is

$y=\frac{5}{7}x-5$

Attached is the graph of the line

3 0

3 years ago

54 is 90% of what number?

Zarrin [17]

The answer is 60 surprisingly

7 0

3 years ago

15m is what percent of 1.5km?

Papessa [141]

1.5km = 1500m
To find the percentage take 15 and divide it by 1500, then times by 100
15/1500 x 100 = 1%

3 0

3 years ago

4.62x10 1.2x 10 What’s the scientific notation

MArishka [77]

46200000000.
12000000000.
you just move the decimal 10 places to the right

5 0

4 years ago

The rectangles below are similar in shape. How wide is the smaller rectangle?

Amanda [17]

Answer:

$\huge\boxed{x=28\ ft}$

Step-by-step explanation:

If two rectangles are similar, then corresponding sides are in proportion.

Therefore we have the equation:

$\dfrac{x}{42}=\dfrac{36}{54}$

cross multiply

$54x=(42)(36)\\\\54x=1512$

divide both sides by 54

$\dfrac{54x}{54}=\dfrac{15212}{54}\\\\x=28$

7 0

3 years ago