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bonufazy [111]
3 years ago
12

Which equation can be used to find how much of a 50 g sample of nitrogen-16 is left after 7 minutes?

Mathematics
1 answer:
miv72 [106K]3 years ago
8 0

Answer:

Step-by-step explanation:

50(0.5) square 50

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Yoshi multiplied -6.2 by -0.14. His result was -0.868. Which statement likely describes the error he made in his calculation?
Digiron [165]

Step-by-step explanation:

The answer is letter B. Negative and Negative is Positive.

3 0
3 years ago
Two cars leave from the same point (A) and travel along a straight road, which are at angle of 78° to each other. If their speed
densk [106]
T=(60cos78, 60sin78)

T=(12.47, 58.69)

C=45

d=√((45-12.47)^2+58.69^2)

d≈67.1km
7 0
3 years ago
The equations x minus 2 y = 1, 3 x minus y = negative 1, x + 2 y = negative 1, and 3 x + y = 1 are shown on the graph below. On
Basile [38]

Answer: (a) x + 2y = -1  and  3x + y = 1

<u>Step-by-step explanation:</u>

I am not sure what the purpose was for the colored lines but I included them on the graph (below).

6 0
3 years ago
Read 2 more answers
HELP!!
WITCHER [35]

The sum of all interior angles of a triangle is 180° thus the measure of the exterior angle m∠K is 102° so option (B) is correct.

<h3>What is a triangle?</h3>

A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are 3 sides and three angles in every triangle, some of which may be the same.

Triangle is a very common figure to deal with in our daily life.

It is known that the sum of all three angles inside a triangle will be 180°.

So,   m∠A +  m∠B +  m∠C = 180°

m∠C = 180° - 58° -  44°

m∠C = 78°.

The exterior angle of C = 180- 78 = 102°.

Hence "The sum of all interior angles of a triangle is 180° thus the measure of the exterior angle to m∠K is 102°".

For more about triangles,

brainly.com/question/2773823

 

#SPJ1

 

5 0
1 year ago
Read 2 more answers
4. Jonathan takes his dog to be groomed. The fee to groom the dog is $80 plus 6.75% tax.
frutty [35]

Step-by-step explanation:

Tax charge

80 × 6.75/100 = 5.4

Cost + tax charge

80 + 5.4 = 85.4

Tip (15% of cost and tax)

85.4 × 15/100 = 12.81

(Cost + tax charge + tip)

85.40 + 12.81 = 98.21

therefore, $95 is not enough.

3 0
3 years ago
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