3 years ago

Factor the binomial completely. x2−81

Mathematics

1 answer:

Nata [24]3 years ago

4 0

Answer:

(x - 9)(x + 9)

Step-by-step explanation:

x² - 81 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), then

x² - 81

= x² - 9²

= (x - 9)(x + 9)

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Write a division problem whose quotient has first digit in the hundreds place

AysviL [449]

OK.

Divide 1,000 by 10.

7 0

3 years ago

Candace ate 3 over 4 cup of cereal. The box of cereal states that one serving of cereal is equal to 2 over 3 cup. Which fraction

choli [55]

Answer: Candace ate $\dfrac9{12}$ servings.

Step-by-step explanation:

Given: Candace ate $\dfrac34$ cup of cereal.

The box of cereal states that 1 serving of cereal = $\dfrac23$ cup.

i.e. 1 cup = $\dfrac32$ servings [Multiply $\dfrac32$ both sides]

⇒ $\dfrac{3}{4}$ cup = $\dfrac34\times\dfrac32$ servings

= $\dfrac9{12}$ servings [which is the number of servings she ate]

Hence, Candace ate $\dfrac9{12}$ servings.

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3 years ago

Which is equal to 3/2 times 3/4

prisoha [69]

(3/2)*(3/4) = (3*3)/(2*4)=(9/8) which is the same as 1 whole 1/8

3 0

3 years ago

Oblicz. Pamiętaj o kolejności wykonywania działań.<br> 4,01 – 1,08 : (2,9 + 0,7) =

Artist 52 [7]

Answer:

3,71

Step-by-step explanation:

4,01 - 1,08 ÷ 3,6

4,01 - 0,3

3,71

7 0

3 years ago

Is 10s equal one thousands

OLga [1]

Ten times ten equals one hundred, if that's what you are asking for.

5 0

3 years ago