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Verdich [7]
3 years ago
14

Identify the methods PLEASE HELP!!

Mathematics
2 answers:
Nostrana [21]3 years ago
8 0

Answer:

C and D

Step-by-step explanation:

You need to add the 2 equations together, so one equation must be negative and the other positive. You also need to make sure the coefficients to the variables are the same so you can eliminate them. Therefore, A and B are wrong and your correct choices are C and D.

klemol [59]3 years ago
6 0

Answer:

Letter A and B are the answers

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Which expression shows (3*100)+(5*10)+(5*1/10) in standard form?​
Ivenika [448]

Answer:

Step-by-step explanation: 3 x 100 + 4 x 10 + 5 x 1 Standard form is the reverse ...

7 0
3 years ago
What is the y-intercept of the graphed linear function? (0, –8) (0, –2) (0, 2) (0, 4)
koban [17]

Answer:

All of them

Step-by-step explanation:

A y-intercept is the point where a line or curve crosses the y-axis of a graph. Example: (0, 7) (0, 6)

6 0
3 years ago
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Anyone know this one I’m kinda bad at math lol
swat32

Answer:

1/ 9^5

Step-by-step explanation:

When dividing exponents with the same base, subtract the exponents

9^2 / 9^7

9 ^ (2-7)

9^ -5

We know that a^ -b = 1/ a^b

1/ 9^5

8 0
3 years ago
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The density of a fish tank is 0.3 fish over feet cubed. There are 15 fish in the tank. What is the volume of the tank?
ale4655 [162]
Since Density = mass/ volume (d = m / v), and assuming the 15 fish weigh 1 gram each - if weight of each fish isn't given -  (making that a total of 15 grams), 

D = m / v
0.3 = 15 / v 
v = 15 / 0.3 = 50 ft cubed

Hope this answers your question correctly :) 

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5 0
3 years ago
WILL MARK U AS BRAINLIEST PLEASE HELP
adelina 88 [10]

Answer:

782.5inch³

Step-by-step explanation:

The question is on volume of a prism and that of a cylinder

Finding the volume of the prism

V=Bh where B is the base area and h is the height

Base area=14"×14"=196 inch²

height =8"

v=196×8= 1568 in³

Finding volume of the cylinder

v=r²h where r is the radius of cylinder and h is the height of cylinder

r=10/2=5 inches and h=10 inches

v=3.142×5×5×10=785.5inch³

The difference in volume

Difference in volume=1568-785.5=782.5in

5 0
3 years ago
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