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3 years ago

14

c. Mr. champing travels 20 km duo East and then 25 km due west. respect to find his position with respect to his starting point.

1 answer:

rewona [7]3 years ago

5 0

He will be 5 km west of his starting point

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What is the answer for this

Eva8 [605]

1). 2x-1=5 (cause x can really be anything) solve the equation to get x=3 or in this case, triangle = 3.

2). Using the info from above, we get the equation 3+x=1.
Solving this equation we get, x (square) =-2.

3). Using all the info from the above problems we get the equation: 3-2*-2=x
Solving that we see that x (star) equals 7.

In conclusion:

Triangle=3
Square=-2
Star=7

7 0

4 years ago

There are 140 people in a singing competition. The graph shows the results for the first five rounds

SOVA2 [1]

a) The expression is y = 140 - 15 x

b ) There are 5 participants in the 9th round

Step-by-step explanation:

Step 1 :

From the graph we can see that,

Number of people in the singing competition = 140

Number of people in the first round = 125

Number of people in the second round = 110

Number of people in the third round = 95

Number of people in the fourth round = 80

Number of people in the fifth round = 65

Step 2 :

From the given data, We can get that the difference between the number of people participating in each round is 15 less than the previous round .

The first round has 15 people less than the total number 140

Let x represent the number of the round and y represent the number of people participating in each round .

Then the expression to represent this would be

y = 140 - 15 x

Step 3 :

To find the number of participants in the 9th round given the same pattern continues.

For the 9th round x = 9, as x represents the number of the round

Substituting this in the equation obtained in step 2, we get

y = 140 -15 (9) = 140 - 135 = 5

There are 5 participants in the 9th round

Step 4 :

Answer :

a) The expression is y = 140 - 15 x

b ) There are 5 participants in the 9th round

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4 years ago

Help ASAP! Marking Brainliest answers if it RIGHT!!!

Goshia [24]

Answer:

-4100

Step-by-step explanation:

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3 years ago

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Find all the zeros of the equation<br> -2x^4+27x^2+1200=0

Angelina_Jolie [31]

For this case we have the following polynomial:
$-2x ^ 4 + 27x ^ 2 + 1200 = 0$
To solve the problem we apply the following steps:
1) We make a change of variables u = x ^ 2
2) We rewrite the polynomial
3) Solve the quadratic equation using the formula for the quadratic equation
4) We return the change and find four roots
Answer:
See attached image for procedure and solution

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4 years ago

Please help me with these five problems dont understand them

-Dominant- [34]

Answer:

22. 150 minutes

23. ½ day

24. 0,045 minutes

25. 1,5 weeks

26. 1 year

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3 years ago