3 years ago

Car insurance of 800 Is twice what it was a decade ago. Find the cost of the insurance then

Mathematics

1 answer:

mr Goodwill [35]3 years ago

6 0

Answer:

it was 400 back then, a decade ago

Step-by-step explanation:

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If an object is dropped from a height of 144 feet, the function h(t)=-16t^2+144 gives the height of the object after t seconds.

shtirl [24]

Answer:

A. 3s

Step-by-step explanation:

The height of the object after t seconds is given by:

$h(t) = -16t^2 + 144$

When will the object hit the ground?

It hits the ground after t seconds, and t is found when $h(t) = 0$ . So

$h(t) = -16t^2 + 144$

$0 = -16t^2 + 144$

$16t^2 = 144$

$t^2 = \frac{144}{16}$

$t^2 = 9$

$t = \sqrt{9}$

$t = 3$

3 seconds, so the correct answer is given by option a.

5 0

2 years ago

What is the explicit formula for this sequence? 7, 2, -3, -8

inn [45]

Answer:

Common difference (d) = -5

Step-by-step explanation:

formula=>

an = a + (n-1)d

=> -8 = 7 + (4-1)d

=> -15 = 3d

=> 3d = -15

=> d = -15/3

=> d = -5

8 0

3 years ago

Some good f the Aliens have hairs on their heads that change color according to their emotions. If they're pleased hairs turn or

jeka94

7 because you divide the 27 from 3.

3 0

2 years ago

Which algebraic expression represents the word expression "three times the square of a number, n, subtracted from 54"?

sveta [45]

Answer:

54 - 3n²

Step-by-step explanation:

Square of a number n = n²

Three times the square of n = 3*n² = 3n²

Expression:

54 - 3n²

3 0

2 years ago

g(x)=2x+9g, left parenthesis, x, right parenthesis, equals, 2, x, plus, 9 g ( g(g, left parenthesis ) = 15 )=15right parenthesis

Dmitriy789 [7]

Answer:

I don't understand your question

6 0

3 years ago

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Car insurance of 800 Is twice what it was a decade ago. Find the cost of the insurance then​

Car insurance of 800 Is twice what it was a decade ago. Find the cost of the insurance then