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aleksley [76]
3 years ago
8

A postcard has an area of 10 square inches. Two enlargements of the postcard have areas of 40 square inches and 160 square inche

s. In each postcard, the length is 2 1 2 times the width.
Mathematics
1 answer:
insens350 [35]3 years ago
3 0

Answer:

62

Step-by-step explanation:

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What is the first step in simplifying
seraphim [82]
Distribute the negative b and negative one to he terms in the parentheses
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3 years ago
Rewrite the function by completing the square f(x)=x^2-4x-26
leonid [27]

Answer:

(x - 2)² - 30

Step-by-step explanation:

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² - 4x

f(x) = x² + 2(- 2)x + 4 - 4 - 26 = (x - 2)² - 30

8 0
3 years ago
Write an expression equivalent to `m+m+m+m` that is a product of a coefficient and a variable. Please include an explanation!
Marina CMI [18]

Answer:

4m

Step-by-step explanation:

it would be 4m because there are four different copies and the variable being used originally is 'm'. therefore, we can move it around and since addition is basically the longer version of multiplication, we would correct this to 4m.

good luck :)

i hope this helps

have a nice day !!

6 0
3 years ago
Read 2 more answers
The function, y(r)=2.76r , is used to convert Russian rubles in Japanese yen, and the function, P(y)=0.16y , is used to convert
timurjin [86]

They probably want 880 pesos, since they asked you do intermediate rounding

but a more accurate answer would be
883.20 pesos

To combine the functions, you'd substitute in 2.76r for y in 0.16y. This would give you 0.16(2.76r), which simplifies to 0.4416r, but they want you round this to the nearest hundredth, so its really 0.44r.  Substitute in the 2000 for r and you get 0.44 * 2000 which is 880 pesos

5 0
3 years ago
Somebody help me please
Nookie1986 [14]

Answer:

Cannot pretty positive

4 0
2 years ago
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