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lina2011 [118]
3 years ago
8

Help asap!!! I really need help on this

Mathematics
1 answer:
alexandr402 [8]3 years ago
3 0

Step-by-step explanation:

The function is positive when the graph is over the x-axis, and negative when the graph is under the x-axis.

As we can see from the graph, it has x-intercepts at x = -3 and x = 3.

Since the graph curves upwards, the function is positive in intervals (-∞, -3) U (3, ∞) and negative in the interval (-3, 3).

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A thermometer showing that the temperature is 4 degrees.
BlackZzzverrR [31]

Answer:

it would be considered 0 degrees..... lol

Step-by-step explanation:

4-4=0

5 0
3 years ago
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Please help!!! Greatly apprecieted!
Lilit [14]

Answer:

Tiffany has 13 dimes and 4 nickels.

Step-by-step explanation:

To solve this problem, you will need to write a systems of equations, n will be the number of nickels and d will be the number of dimes.

n+d=17 This means that the number of nickels plus the number of dimes is equal to 17.

5n+10d=150, This means that for each nickel, there is 5 cents and for each dime, there is 10 cents.  The equation is equal to 150 cent because the coins are worth 150 cents.

Next, solve the system:

n+d=17

5n+10d=150 First simplify the second equation by dividing it all by 5.

n+d=17

n+2d=30, Next, isolate n to use substitution on the system.

n=17-d

n=30-2d, Substitute n to solve for d

17-d=30-2d, Solve for d

d=13, this means that there are 13 dimes, plug in the d value in either of the equations to find n.

n+(13)=17

n=4, There are 4 nickles

3 0
3 years ago
As an estimation we are told £3 is €4.
poizon [28]

Answer:

€113.87

Step-by-step explanation:

Amount = £85.40 * €4/£3 = €113.87.

3 0
3 years ago
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Use the method illustrated in the solutions to Exercise 9.2.39 to answer the following questions. (a) How many ways can the lett
Jobisdone [24]

Answer:

(a) 720 ways

(b) 120 ways

(c) 24 ways

Step-by-step explanation:

Given

Word = DANCER

n =6 --- number of letters

Solving (a): Number of arrangements.

We have:

n =6

So, the number of arrangements is calculated as:

Total =n!

This gives:

Total =6!

This gives:

Total =6*5*4*3*2*1

Total =720

Solving (b): DA as a unit

DA as a unit implies that, we have:

[DA] N C E R

So, we have:

n = 5

So, the number of arrangements is calculated as:

Total =n!

This gives:

Total =5!

This gives:

Total =5*4*3*2*1

Total =120

Solving (c): NCE as a unit

NCE as a unit implies that, we have:

D A [NCE] R

So, we have:

n = 4

So, the number of arrangements is calculated as:

Total =n!

This gives:

Total =4!

This gives:

Total =4*3*2*1

Total =24

8 0
3 years ago
It takes Oliver 30 minutes to walk to school everyday a distance of 1.5 miles. what is Oliver speed in miles per hour
Olegator [25]
1.5 miles/30 minutes is your unit rate. If you multiply the rate by 2 you would get 3 miles/hour.

So your final answer would be 3 miles per hour.
Hope this helps.
5 0
3 years ago
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