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mezya [45]
3 years ago
9

The side lengths of a triangle are 9, 12, and 15. Is this a right triangle?

Mathematics
1 answer:
solmaris [256]3 years ago
8 0

Answer:

yes

Step-by-step explanation:

...

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Question
Marta_Voda [28]

The equation that shows the profit earned for selling popcorn for x hours is y = $15m - $20

From the equation of the linear function given y = mx + b

y indicates the profit earned and x represents the time in hours.

From the question,

After 3 hours, the popcorn stand earned a profit of $25.

∴ The equation becomes $25 = 3m + b ------ (1)

and after 6 hours, the profit was $70.

∴ The equation becomes $70 = 6m + b ------- (2)

Now, we will solve the two equations simultaneously

From the first equation

$25 = 3m + b

We can write that

b = $25 - 3m ------- (3)

Substitute this into the second equation

$70 = 6m + b

We get

$70 = 6m + ($25 - 3m)

$70 = 6m + $25 - 3m

$70 - $25 = 6m - 3m

$45 = 3m

∴ m = $45 ÷ 3

m = $15

Now, substitute the value of m into equation (3)

b = $25 - 3m

b = $25 - 3($15)

b = $25 - $45

b = -$20

∴ m = $15 and b = -$20

Putting these values into the equation y = mx + b we get

y = $15m +(- $20)

∴ y = $15m - $20

Hence, the equation that shows the profit earned for selling popcorn for x hours is y = $15m - $20

Learn more here: brainly.com/question/19511111

5 0
2 years ago
He gets paid £6.80 per hour<br> how many hours for 9 and half hours
Akimi4 [234]

Answer: 64.60

Step-by-step explanation:

lets do 6.80x9

= 61.20

for the half an hour, divide 6.80 by 2

it would be 3.40

61.20+3.40= 64.60

5 0
3 years ago
Read 2 more answers
Can anyone help solve this for me ASAP. Thanks!
Anuta_ua [19.1K]

Answer:

x = 20

y = 26

Step-by-step explanation:

40 and 2x are vertical angles, so they're equal to each other.

40 = 2x

Divide both sides by 2

x = 20

We see that 40 and 5y + 10 are a linear pair, which means they add up to 180.

5y + 10 + 40 = 180

5y + 50 = 180

5y = 130

y = 26

8 0
2 years ago
Can some one plz help fast F=-m+B/q^3
Pani-rosa [81]

whaaaa

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sorreee

5 0
3 years ago
Given the function f(x) = −3x3 + 9x2 − 2x + 3, what part of the function indicates that the left end starts at the top of the gr
shutvik [7]

Answer: The correct option is, The coefficient of the first term.

Step-by-step explanation:

The given function is,

f(x)=-3x^3+9x^2-2x+3

End behavior of the polynomial function : It is defined as the graph of f(x) as x approaches +\infty and -\infty.

The end behavior of the graph depends on the leading coefficient and degree of the polynomial.

As, the degree of the polynomial is '3'. So, the leading coefficient will determine the structure of the graph.

Therefore, the coefficient of the first term will indicate that the left end starts at the top of the graph.

The graph is also shown below.

5 0
3 years ago
Read 2 more answers
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