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3 years ago

a polar bear weigh 2143 pounds and a penguin weigh 180 pounds. How much more does the polar bear weigh than the penguin?

Mathematics

2 answers:

seraphim [82]3 years ago

8 0

The polar bear weighs 1963 more pounds than the penguins.

Trava [24]3 years ago

8 0

2143 - 180 = 1963

So the polar bear weighs 1963 pounds more than the penguin.

Hint: (whenever a problem asks "how many more" its almost always subtraction)

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Write a function describing the relationship of the given variables.

Oliga [24]

Answer:

The function describing the relationship of V and t is V = 3t²

Step-by-step explanation:

* Lets explain the meaning of direct variation

- The direct variation is a mathematical relationship between two

variables that can be expressed by an equation in which one

variable is equal to a constant times the other

- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the

constant of variation

* Now lets solve the problem

# V is varies directly with the square of t

- Change the statement above to a mathematical relation

∴ V ∝ t²

- Chang the relation to a function by using a constant k

∴ V = kt²

- To find the value of the constant of variation k substitute V and t

by the given values

∵ t = 6 when V = 108

∵ V = kt²

∴ 108 = k(6)² ⇒ simplify the power 2

∴ 108 = 36k ⇒ divide both sides by 36 to find the value of k

∴ 3 = k

- The value of the constant of variation is 3

∴ The function describing the relationship of V and t is V = 3t²

3 0

3 years ago

Work out (5.32 x 10^-7): (2.5 x 10^-5)<br>Give your answer in standard form

Mrrafil [7]

Answer:

1.33×10^-6

Step-by-step explanation:

5.32 x 10^-7= 5.32×10^(-5-2)= 5.32×10^-2×10^(-5)

=0.0532×10^-5

(0.0532×10^-5) (2.5 x 10^-5)

0.0532×2.5 × 10^-5

0.133×10^-5= 1.33×10^-1 ×10^-5

1.33×10^-6

8 0

2 years ago

What is 78,400,000 expressed in scientific notation?

Virty [35]

Answer:

7.84 × 10 ^7

Step-by-step explanation:

6 0

2 years ago

Angles BAE and FAC are straight angles. What angle relationship best describes angles BAC and EAF?Adjacent anglesComplementary a

Natalka [10]

The best angle relationship that describes angles BAC and EAF is supplementary angles

The sum of angle on a straight line is supplementary i.e. they sum up to 180 degrees.

If Angles BAE and FAC are straight angles, it means they are linear pairs and their sum is 180 degrees. Mathematically;

m<BAE + m<FAC = 180degrees

Hence we can conclude that the best angle relationship that describes angles BAC and EAF is supplementary angles

Learn more here: brainly.com/question/22309882

8 0

2 years ago

The trail to a waterfall is 4 1/5 miles long .The trail to an overlook is 1 2/3 times as long as the trail to the waterfall. Whi

erica [24]

I believe the correct answer to your question would be choice B. The trail is no more than 6 miles long.

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3 years ago