3 years ago

Solve using foil method (x+9)(x+9)

Mathematics

1 answer:

Fudgin [204]3 years ago

3 0

X^2+9x+9x+81
x^2+18x+81
for factoring it

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Can someone please help me ASAP

Sonja [21]

Answer:

x^2 + 5n = 4mx

=> x^2 - 4mx + 5n = 0

D=0 (since one root then roots are equal)

b^2-4ac = 0

(-4m)^2 - 4(1)(5n) = 0

16m^2 - 20n = 0

16m^2 = 20n

8m^2 = 10n

4m^2 = 5n

hope it helps.......

7 0

2 years ago

in year 4 the store sold 112% of the total number of scooters sold during the previous three years combined determine the number

Margarita [4]

Answer:

2, 240

Step-by-step explanation:

In the table, the values should be

Year 1 725

Year 2 579

Year 3 696

Since Year 4 sold 112% of the previous 3 years combined, we add 725+579+696=2000. We can find 112% by writing a proportion.

$\frac{112}{100} =\frac{x}{2000}$

We solve through cross multiplication of numerator and denominator of the opposite fraction.

$112(2000)=100(x)\\224000=100x\\2,240=x$

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3 years ago

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What is meant by unit rate

Ksju [112]

Answer:

A unit rate describes how many units of the first type of quantity corresponds to one unit of the second type of quantity.

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3 years ago

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Xelga [282]

Step-by-step explanation:

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2 years ago

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6(a+2b+3c)=??????????????

IrinaVladis [17]

Answer:

6(a) + 12(b) + 18(c)

Step-by-step explanation:

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2 years ago