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2 years ago

What is the sum of the lengths of the shortest and longest ski trails? pls help with number 5

Mathematics

2 answers:

d1i1m1o1n [39]2 years ago

7 0

Answer:

ummmmm whats the ski trails leaghts i dont have enough info

Step-by-step explanation:

Oksanka [162]2 years ago

7 0

5.5 in decimal form or 11/2 in fraction form if it’s right pls give brainliest

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What is the degree of the polynomial? 3.75x^5- 7.25x^7+9.5- 6.75x^6

gregori [183]

The degree of the polynomial is 7

8 0

3 years ago

WILL MARK BRAINIEST, QUESTION IS HARD, Ann works for a city’s parks and recreation department. She is looking for some commercia

MrRa [10]

Answer:

$x =320$

Step-by-step explanation:

Given

$x^2 + 200x = 166400$

Required

Find x

We have:

$x^2 + 200x = 166400$

Rewrite as:

$x^2 + 200x - 166400 = 0$

Expand

$x^2 + 520x - 320x - 166400 = 0$

Factorize

$x(x + 520) - 320(x + 520)= 0$

Factor out x + 520

$(x - 320) (x + 520)= 0$

Split

$x - 320 = 0\ or\ x + 520= 0$

Solve

$x = 320\ or\ x =- 520$

Side length must be positive;

So:

$x = 320$

4 0

2 years ago

Evaluate the temputure formula f=1.8C + 32 for C=40

sweet-ann [11.9K]

Answer:

1.8 × 40 + 32 = 104

if i got it wrong than your teacher is on crack

3 0

2 years ago

Read 2 more answers

Is the following statement correct? Explain.

Maksim231197 [3]

Answer: The answer is NO.

Step-by-step explanation: The given statement is -

If the graph of two equations are coincident lines, then that system of equations will have no solution.

We are to check whether the above statement is correct or not.

Any two equations having graphs as coincident lines are of the form -

$ax+by=c,\\\\dax+dby=dc,\\\\\textup{where}~~d\neq 1.$

If we take d = 1, then both the equations will be same.

Now, subtracting the second equation from first, we have

$a(1-d)x+b(1-d)y=c(1-d)\\\\\Rightarrow ax+by=c,~\textup{since}~d\neq 1,~\textup{so}~1-d\neq 0.$

Again, we will get the first equation, which is linear in two unknown variables. So, the system will have infinite number of solutions, which consists of the points lying on the line.

For example, see the attached figure, the graphs of following two equations is drawn and they are coincident. Also, the result is again the same straight line which has infinite number of points on it. These points makes the solution for the following system.

$2x+5y=10,\\\\6x+15y=30.$

Thus, the given statement is not correct.

4 0

3 years ago

What are the geometric series of a1 and r of the geometric series?<br><br> 2-2+2-2+2

meriva

Answer:

a1=2 and r=-1

Step-by-step explanation:

Given

geometric series= 2-2+2-2+2

geometric sequence has a constant ratior r and is given by

an=a1r(r)^(n-1)

where

an=nth term

r=common ratio

n=number of term

a1=first term

In given series:

r= a(n+1)/an

= a(2)/a1

= -2/2

=-1

so a1=2 and r=-1 !

3 0

3 years ago