2 years ago

What is the value of the expression 8 − (7 − 4) + 12 x 2?

Mathematics

2 answers:

Kamila [148]2 years ago

7 0

Answer:

Step-by-step explanation:

im smart

Len [333]2 years ago

6 0

Answer:

Step-by-step explanation:

just do the math lol

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Which point(s) are on the graph of the following parametric equations?

Delvig [45]

x(t)=2t
y(t)=t^2
A) (-4,4),
x(t)=2t=-4, t=-2
y(-2)=(-2)²=4 , True

B) (-2,-4)
x(t)=2t=-2, t=-1
y(-1)=(-1)²=1 False. we have y=-4

C) (0,0)
x(t)=2t=0, t=0
y(0)=(0)²=0 True

D)(1,2)
x(t)=2t=1, t=1/2
y(1/2)=(1/2)²=1/4 False. we have y=2

E) (6,9)
(-2,-4)
x(t)=2t=6, t=3
y(3)=(3)²=9 True.

Correct answers is A, C, E.

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2 years ago

a telephone booth that is 8 ft tall casts a shadow that is 4 ft long . find the height of a lawn ornament that casts 2 ft shadow

Molodets [167]

1/2 of 8 is 4 so then 1/2 of 4 is 2
so the lawn ornament is 4 ft

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3 years ago

Find the simple interest earned on a deposit of $2,800 that earns 2% annual interest after 5 years.

Anvisha [2.4K]

It’s 280 I believe...

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2 years ago