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Sedbober [7]
3 years ago
14

If there is 360 grams of radioactive material with a half-life of 8 hours, how much of the radioactive material will be left aft

er 32 hours and is the radioactive decay modeled by a linear function or an exponential function?
A) 22.5 grams; linear
B) 22.5 grams; exponential
C) 45 grams; linear
D) 45 grams; exponential
Mathematics
1 answer:
AnnZ [28]3 years ago
7 0
22.5 grams : Exponential

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Five pounds of birdseed is used to fill 4 identical bird feeders.
enyata [817]

Answer:

a. We need 1/4 for each feeder  

b. To fill each feeder we need 1.25 pounds

c.  We need 60 ounces to fill three bird feeders

Step-by-step explanation:

Five pounds of birdseed is used to fill 4 identical bird feeders,  

a. We divide all the birdseed in 4 feeders, so,  we need 1/4 for each feeder.

b. If we use 5 pounds for the 4 feeders,  so each feeders will take 1/4 of the 5 pounds

=1/4 x 5=1.25 pounds

c. To fill three bird feeders we have to multiply the amount of pounds by feeder by 3 feeders

=1.25 pounds x 3

= 3,75 pounds

If 16 ounces are a pound

so,  16 x 3.75 = 60 ounces

8 0
3 years ago
Write the equation 5x + 2y = -6 in general form.
vampirchik [111]

Answer:

5x+2y+6=0

Step-by-step explanation:

General equations are in the form Ax + By + C = 0

So you can add 6 to both sides to make:

5x+2y+6=0

5 0
3 years ago
The sum of ruqiyo’s age and Mohammed’s age is 117. Five times ruqiyo’s age is 9 more than 3 times mohammed’s age. How old is eac
Bess [88]

Answer:

  • 45 and 72

Step-by-step explanation:

Let the ages be r and m

<u>We have:</u>

  • r + m = 117
  • 5r = 9 + 3m

<u>Substitute m in the second equation and solve for r:</u>

  • m = 117 - r
  • 5r = 9 + 3( 117 - r)
  • 5r = 9 + 351 - 3r
  • 5r + 3r = 360
  • 8r = 360
  • r = 360/8
  • r = 45

<u>Then m is</u>

  • m = 117 - 45 = 72
3 0
3 years ago
in a triple batch of spice mix, there are 15 teaspoons of salt and 6 teaspoons of garlic powder. how much salt is used with 8 te
NISA [10]

Answer: I would say 24 manybe...I might be wrong

Step-by-step explanation:

6 0
2 years ago
After surveying 100 parents, researchers concluded that 90 percent of babies can walk by the age of 10 months. Why is this an in
Maru [420]

This is an inappropriate conclusion because of <u>D. At 10 months</u>, ninety percent of toddlers have not reached the developmental milestones to walk.

<h3>What is an inappropriate conclusion?</h3>

An inappropriate conclusion is one arrived at without a proper research design.  An inappropriate conclusion can also be reached when the interpretation of the research result is not based on the findings.

Our conclusion implies that there is a wrong interpretation of the research findings because of the researcher's bias.

Thus, the research conclusion is <u>inappropriate</u> because of Option D.

Learn more about research conclusions at brainly.com/question/24542637

3 0
2 years ago
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