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melamori03 [73]
3 years ago
14

What is f(-3) for the function f(a)=-2a2-5a+4?​

Mathematics
1 answer:
Gwar [14]3 years ago
4 0

Answer:

ans is 1

Step-by-step explanation:

replace a with -3

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PLEASE HELP TIMEDD
loris [4]
Correct answer: A) A = the card is red, B = the card is black

Because mutually exclusive means "cannot occur simultaneously."
The other choices all can occur together.
7 0
3 years ago
An object dropped from a height of 600 feet has a height, h(t), in feet after t seconds have elapsed, such that h(t)=600 - 16t^2
gulaghasi [49]

Answer:

t as a function of height h is  t = √600 - h/16

The time to reach a height of 50 feet is 5.86 minutes

Step-by-step explanation:

Function for height is h(t) = 600 - 16t²

where t = time lapsed in seconds after an object is dropped from height of 600 feet

t  as a function of height h

replacing the function with variable h

h = 600 - 16t²

Solving for t

Subtracting 600 from both side

h - 600 = -16t²

Divide through by -16

600 - h/ 16 = t²

Take square root of both sides

√600 - h/16 = t

Therefore, t = √600 - h/16

Time to reach height 50 feet

t = √600 - h/16

substituting h = 50 in the equation

t = √600 - 50/16

t = √550/16

t= 34.375

t = 5.86 minutes

7 0
4 years ago
(x + 3)/(3x - 2) - (x - 3)/(3x + 2) = - 22/(9x ^ 2 - 4)
ICE Princess25 [194]

Answer:

x = -1

Step-by-step explanation:

7 0
3 years ago
Use the rules for multiplication by powers of 10 to calculate 3 × 100
padilas [110]
3 × 100 = 300

the easiest way to do it is just add the same amount of zero's to the number you multiplied with. for example

3 × 10000 if you would just take out the zero's
it would look like this. 3 × 1

the answer of course would be 3 then you can put the zero's back in the answer (30000)

at least that's how I understood it

3 × 100 =

3 × 1(00) =
-->

-->
(00)
3 × 1(00) = 3

3 × 100 = 300
4 0
3 years ago
A box of uncooked spaghetti cost $0.1369 per ounce. how much is this cost to the nearest cent?
AlladinOne [14]
The cost to the nearest sent is 0.14

This is because you can round the .136 up to the nearest hundredths place.
3 0
3 years ago
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