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2 years ago

Evaluate 16 • 1 + 4(18 ÷ 2 – 9)

Mathematics

2 answers:

Hunter-Best [27]2 years ago

8 0

Answer:

Step-by-step explanation:

I did this in 7th grade and had the answer but I don't know the steps

tiny-mole [99]2 years ago

7 0

Answer: remember PEMDAS (parentheses, exponents, multiplication, division, addition, and subtraction. Multiplication and division)

answer is 16

Step-by-step explanation:

16×1+4(18÷2−9)

(Multiply 16 and 1 to get 16.)

16+4(18÷2−9)

(Divide 18 by 2 to get 9.)

16+4(9−9)

Subtract 9 from 9 to get 0.

16+4×0

Multiply 4 and 0 to get 0.

16+0

Add 16 and 0 to get 16.

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2 years ago

The equation h(t)= -16t^2+864t models the path of a rocket shot into the air. After how many seconds does the rocket hit the gro

Vika [28.1K]

Answer:

t = 54 seconds

Step-by-step explanation:

The equation that models the path of a rocket into the air is given by :

$h(t)= -16t^2+864t$

It is required to find the time after which the rocket will hit the ground. When it hits the ground, the height of the rocket will becomes zero. It means,

h(t) = 0

i.e.

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It means after 54 seconds, the rocket will hit the ground.

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2 years ago

14. A bag contains 20 marbles. There are 4 blue

Vladimir [108]

Answer:

30%, or 1/3

Step-by-step explanation:

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Hope this helps! :)

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1 year ago

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Answer:

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