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3 years ago

Could -2be used as a base to rewrite 32? 64? why or why not

1 answer:

4 0

32. No because (-2)^5= -32. The exponent is odd so the negative sign does not cancel out.

64. Yes because (-2)^6=64. The exponent is positive so the negative sign in -2 is cancelled out through multiplication.

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write a real-world problem in which you would need to find the number of units between -6 and 0 on a number line.

Mariulka [41]

Sam started with 0 dollars in his bank account. He charged his debit card for a sandwich that costs $6.00. If this was written on a number line. How many units would Sam to go to get back to where he started?

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3 years ago

What are the values of a 1 and r of the geometric series? 1 3 9 27 81 a 1 = 1 and r = one-third a 1 = one-third and r = 1 a 1 =

Paha777 [63]

Answer:

a₁ = 1

r = 3

Step-by-step explanation:

Since it’s a geometric series then

a₁ = 1 ( because 1 is the first term of the series)

3/1 = 9/3 = 27/9 = 81/27 = 3 then r=3.

Step-by-step explanation:

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2 years ago

You deposit $ 1200 in an account. The annual interest rate is 3%. How long will it take you to earn $108 in simple interest?

alukav5142 [94]

The correct answer is 3

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3 years ago

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Crazy boy [7]

Step-by-step explanation:

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3 years ago

Choose the correct word that completes each statement about inscribing a square in a circle.

Anna11 [10]

Answer:

1. Perpendicular

2. Isosceles

3. Never

Step-by-step explanation:

1. AC ⊥ BD because diameter of a square are perpendicular bisector of each other.

2. In Δ AOB , By using pythagoras : AB² = OA² + OB² .......( 1 )

In Δ COB , By using pythagoras : BC² = OC² + OB² ..........( 2 )

But, OA = OC because both are radius of same circle

So, by using equations ( 1 ) and ( 2 ), We get AB = BC ≠ AC

⇒ ABC is a triangle having two equal sides so ABC is an isosceles triangle.

3. The side can never be equal to radius of circle because the side of the square will be chord for the circle and in a circle chord can never be equal to its radius

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3 years ago