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3 years ago

6

The element lawrencium has a half-life of 10 hours. What fraction of 1 ounce of lawrencium will remain after 4 days 4 hours? A.

B. C. D.

1 answer:

irina [24]3 years ago

7 0

What is the answer choices

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What is 0.016667 to three significant figures

Korolek [52]

Answer:

0.0167

Step-by-step explanation:

There are 5 "Sig Figs" in this number: 1, 6, 6, 6, and 7

0.01666 rounded to <em>three</em> significant figures is .0167.

6 0

3 years ago

Rays QR and QS are tangents to circle P at R and S. If Q measures to 54°, find RS

Ainat [17]

Answer: $126^{\circ}$

Step-by-step explanation:

If we draw RP and PS, then in the quadrilateral formed, we know that $\angle PRQ=\angle PSQ=90^{\circ}$ , and since angles in a quadrilateral add to 360 degrees, this means $\angle SPR=126^{\circ}$ .

Thus, arc RS also measures 126 degrees

8 0

2 years ago

The scale on a map is 1 cm : 6 km. If two cities are 13 cm apart on the map, what is the actual distance between the cities?

AnnZ [28]

Answer:

78 km!

Step-by-step explanation:

13 cm * 6 km per cm = 78 km in actual distance

4 0

2 years ago

Is this a direct variation problem

Llana [10]

Yes and for a. You can just put y=x [y=1x is bascually the same but just the 1 isnt needed]

6 0

3 years ago

Solve the equation<br>2/3 h - 1/3 h + 11 = 8<br><br>h = ?

Deffense [45]

Answer:

$2 \div 3h - 1 \div 3 h+ 11 = 8 \\ 2 - 1 \div 3h = - 3 \\ 1 \div 3h = - 3 \\ - 9h = 1 \\ h = - 1 \div 9$

-1/9 is the answer

8 0

3 years ago