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3 years ago

Find the measures of the numbered angles

Mathematics

1 answer:

inessss [21]3 years ago

5 0

Answer:

angle 1 is 90 degrees because of the kite theorem:

THEOREM: If a quadrilateral is a kite, the diagonals are perpendicular.

angle 2 is 58 degrees because 180-90-32=58 degrees

Step-by-step explanation:

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Suppose a lake contains blue and green algae. The blue algae has an initial mass of 20 kg and doubles its mass every hour. The g

loris [4]

Answer: 1) D

2) C

Step-by-step explanation:

1. The blue algae has an initial mass of 20 kg and doubles its mass every hour. Then after t hours, the mass of blue algae is

2. The green algae has an initial mass of 160 kg and grows at a constant rate of 0.20 kg per minute. Then after t hours (60t minutes), the mass of green algae is

Part I) At t=3:

The mass of green algae has 196-160=36 kg more mass at 3 hours.

Part II) At t=4:

The blue algae has 320-208=112 kg more mass at 4 hours.

6 0

2 years ago

There are 25 towns in a certain country, and every pair of them is connected by a train route. How many train routes are there?

7nadin3 [17]

Answer:

Step-by-step explanation:

a pair=2

so 25/each pair of towns

25/2=12+1=13

5 0

3 years ago

If x = -6 and y = -2, evaluate the expression.<br> 3x - 10<br> y-5

Bond [772]

Is it
3x-10= 3(-6)-10= -28
Y-5= -2-5=-7

3 0

2 years ago

Can any one answer everything

Roman55 [17]

I don’t really understand for question 11 to 13

3 0

3 years ago

If a drug has a concentration of 8.22 mg per 3.039 mL, how many mL are needed to give 7.469 gram of the drug? Round to 1 decimal

aalyn [17]

Answer:

2.8 litres

Step-by-step explanation:

8.22 mg per 3.039 mL

2.704 mg per 1 mL

7.469 gram = 7469 milligrams

7469 milligrams per 2,761.34927mL

= 2.761 litres = 2.8 litres

7 0

3 years ago