3 years ago

What is indicated by arrowheads on a line?

1 answer:

5 0

Arrows on a line mean that the line continues forever in that direction. If there are two arrows in both directions along a line, then you have a geometric line. If you only have one arrow, then it is a ray. Having no arrows indicates a segment.

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If a= 5^99 x 2^98 and b= 5^72 x 4^38 show ab has 172 digits when written as a ordinary number

Nonamiya [84]

Step-by-step explanation:

= (5⁹⁹ * 2⁹⁸) * (5⁷² * 4³⁸)

= 2⁹⁸ * 2⁷⁶ * 5⁹⁹ * 5⁷²

= 2¹⁷⁴ * 5¹⁷¹

= 2³ * (2¹⁷¹ * 5¹⁷¹).

The 2¹⁷¹ * 5¹⁷¹ will give 171 ending zeroes as 2 * 5 = 10.

And there is a 8 infront as 2³ = 8.

Hence altogether there are 171 + 1 = 172 digits.

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3 years ago

Determine the coordinates of the triangle shown below after a dilation with a scale factor of 4

tatyana61 [14]

Do you have the picture?

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3 years ago

Evaluate using the values given a+ba; use a=-1 and b=-2

Serjik [45]

$\begin{gathered} a+ba=a+b\cdot a \\ a=-1,b=-2 \\ \Rightarrow-1+(-2)\cdot(-1)=-1+(2)=1 \\ \Rightarrow a+ba=1 \end{gathered}$

Thus, the answer is a+ba=1

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1 year ago

Robert mixes yellow and blue paint in the ratio of 3:2 .If he used 12 gallons of yellow paint, how many gallons of blue paint wo

GREYUIT [131]

Answer:

8 gallons

Step-by-step explanation:

3x4=12 (do the same to the opposite) 2x4=8 or 8 gallons of blue paint (to be more specific)

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3 years ago

What is the lcm of 3,8

ludmilkaskok [199]

Answer: 24

Step-by-step explanation: The LCM of 3 and 8 is 24.

3 6 9 12 15 `18 21 24

8 16 24

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3 years ago