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stiv31 [10]
3 years ago
8

30pts! im currently in the middle of taking the test :(

Mathematics
2 answers:
nadya68 [22]3 years ago
5 0

Answer:

16 /65  +  28 i /65

Step-by-step explanation:

Lady bird [3.3K]3 years ago
4 0

Answer:

16+28i over 65

Step-by-step explanation:

toot the test

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Formulate the situation as a system of two linear equations in two variables. Be sure to state clearly the meaning of your x- an
adoni [48]

Answer: 1000 hot dogs and and 1600 sodas were sold.

Step-by-step explanation:

Let x be the number of hot dogs and y be the number of sodas.

Given : The concession stand at an ice hockey rink had receipts of $6200 from selling a total of 2600 sodas and hot dogs.

Each soda sold for $2 and each hot dog sold for $3 .

Then, we have the following system of two linear equations:-

x+y=2600-----------(1)\\\\3x+2y=6200-----------(2)

Multiplying 2 on both sides of (1), we get

2x+2y=5200------------(3)

Now, Eliminate equation (3) from equation (2), we get

x=1000

Put x=1000 in (1), we get

1000+y=2600\\\\\Rightarrow\ y=2600-1000=1600

Hence, 1000 hot dogs and and 1600 sodas were sold.

4 0
3 years ago
How many different ways can the letters of “football” be arranged
makvit [3.9K]
<h3>Answer:   10,080</h3>

Explanation:

There are 8 letters so there are 8! = 8*7*6*5*4*3*2*1 = 40,320 permutations of those letters. However, the letters "O" and "L" show up twice each, so we must divide by 2! = 2*1 = 2 for each instance this happens.

So,

(8!)/(2!*2!) = (40,320)/(2*2) = (40,320)/4 = 10,080

is the number of ways to arrange the letters of "football".

The reason we divide by 2 for each instance of a duplicate letter is because we can't tell the difference between the two "O"s or the two "L"s. If there was a way to distinguish between them, then we wouldnt have to divide by 2.

3 0
3 years ago
Clay bought a new winter coat Clay discount was 30 % off.his total discount was 15 Dollar's what was the.original price of the c
Luden [163]

The answer is $4.50

<h2>15*.30=4.50</h2>
6 0
3 years ago
Find the zeros of each function by using a graph and a table f(x)=x^2+3x-18.
Debora [2.8K]

1) Finding the zeros of this function f(x) =x² +3x -18

f(x) = x²+3x-18 <em>Factoring this equation, and rewriting it</em>

<em />

<em>Which two numbers whose sum is equal to 3 and their product is equal to 18?</em>

<em>6 -3 = 3 and 6 *-3 = -18</em>

<em />

<em>So we can rewrite as (x +6) (x-3)</em>

<em> </em>

(x+6)(x-3)=0 <em>Applying the Zero product rule, to find the roots</em>

x+6=0,

x=-6

x-3=0,

x=3

S={3,-6}

2) Setting a table, plugging in the values of x into the factored form: (x-6)(x-3)

x | y |

1 | -14 (1 +6)(1-3) =-14

2 | -8 (2 +6)(2-3) =-8

3 | 0

4 | 10

-5 | -8

-6 | 0

3) Plotting the function:

5 0
1 year ago
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