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monitta
3 years ago
12

What is the value of f(-6) when f(x)=x^2+8x+10

Mathematics
1 answer:
Stella [2.4K]3 years ago
8 0

Answer:

22

Step-by-step explanation:

you input -6 anywhere you see X than you solve by orders of operation

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a hotel at your vacation destination quotes you a rate of $200/night. you find a similar hotel in town for 25 percent less. if y
lisov135 [29]

Answer: $450

Step-by-step explanation:

Since the similar hotel in town goes for 25 percent less, that means that (100.- 25) = 75% would be paid. This will be:

= 75% × $200.

= 75/100 × $200.

= $150

The amount paid for a three-night stay will be:

= $150 × 3

= $450

7 0
3 years ago
Firefighters need to use a 60-foot ladder to save a child. She is 50 feet above street
mr_godi [17]

Answer:

The ladder must be placed at a distance of 33.2 feet from the bottom of the building

Step-by-step explanation:

From what we have here, we are looking at a right angled triangle with the hypotenuse which is the length of the ladder

The height of the child is 50 feet from ground level

So we need to get the third side of the triangle

We can get this by considering the use of Pythagoras’ theorem

This will give us the length of the third side of the triangle

From Pythagoras’ the square of the hypotenuse is equal the sum of the squares of the two other sides

Let the unknown side be x

Thus;

60^2 = 50^2 + x^2

x^2 = 60^2 - 50^2

x^2 = (60-50)(60+50)

x^2 = (10)(110)

x^2 = 1100

x = square root of 1100

x = 33.166

To the nearest tenth, this is 33.2 feet

3 0
3 years ago
Is 8, 9, 14, 5 solutions to y ≤ 9?
amid [387]

Answer:

y ≤ 9 is saying that y is equal to anything 9 and below. Therefore, 9, 8, and 5 are correct answers since they are either equal to or less then 9. Although 14 is the only incorrect one.

14 is incorrect

Step-by-step explanation:

3 0
3 years ago
ritu can row downstream 20km in 2 hrs and upstream 4km in 2 hrs. find the speed of rowing in still water and the speed of the cu
Marina CMI [18]

Answer:

Speed of boat in still water is 6km/h

Speed of current is 4km/h

Step-by-step explanation:

We know speed = distance / time

Let the speed of boat in still water be x

Let the speed of current be y

Hence the speed of boat, down stream = x+y

Distance downstream = 20km

Time taken = 2 hours

We have

x+y=\frac{20}{2}

x+y=10       ......(1)

Speed of boat upstream = x-y

Distance upstream = 4

Time taken = 2

We have

x-y=\frac{4}{2}

x-y=2    ...(2)

Adding (1) & (2)

2x=12

x=6

Substituting in (1) we get

y=4

7 0
3 years ago
What inequality is represented by this graph? 12 2 3 0128 o a 128​
steposvetlana [31]

Answer:

Please edit this question, I'm not sure what you're asking. Or, include a picture.

3 0
3 years ago
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