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kozerog [31]
2 years ago
14

A theater has 50 seats on the front row. There are four additional seats in each following row. PART B: How many seats would the

re be in the 20th row?
Mathematics
1 answer:
Roman55 [17]2 years ago
7 0
132, if you add four to 50, and keep going until you get to 20
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A 15-ft ladder is propped against a vertical wall and makes a 72 ̊ angle with the ground. How far is the foot of the ladder from
murzikaleks [220]
We first approach this problem by illustrating the situation. Refer to the diagram attached.

From the diagram, we can clearly see that we need to simply solve for the length marked x in order to find the distance between the foot of the ladder to the base of the wall.

Remember SOHCAHTOA. We can apply here the concept of cosine since we have the angle. Incorporationg x into the equation, we can simply make use of the relation cosine 72° = adjacent/hypotenuse.

cos(72deg)= \frac{x}{15}
15cos(72deg)=x
x=4.6

ANSWER: The distance between the foot of the ladder and the base of the wall is 4.6 feet.

6 0
3 years ago
Create a quadratic equation that has complex solutions
svetoff [14.1K]

Answer:

x^2 + x + 2 = 0.

Step-by-step explanation:

The discriminant b^2 - 4ac is < 0 for complex roots.

So we can choose appropriate values for a, b and c.

Let b = 1,  a = 1 and  c = 2 so b^2 - 4ac = 1 - 4*1*2 = -7.

So our equation is:

x^2 + x + 2 = 0.


4 0
3 years ago
Dylan makes $336 for 32 hours of work, and Angela makes $420 for 42 hours of work. How much do Dylan and Angela each make per ho
lions [1.4K]

Answer: (first half) Dylan= $10.5 per hour

Angela$10 per hour

(second half) No because they have different rate as the one before


Step-by-step explanation:

step one : divied how much money they make by the number of hours

Dylan

$336/32 hours = $10.5 per hour

Angela

$420/42 hours = $10 per hour

Step two: multiply the answer you got for Dylan by 25 hours and Angela by 42

Dylan

10.5 (25) = $262.5

Angela

10 (42)= 420

(Rates)

Dylan rate before = $336

Rate after solving = $262.5

Angela rate before = $420

Rate after solving = $420


i hope this helps ;)


3 0
3 years ago
Write 7 as a fraction with the 9 in the denominator
mel-nik [20]
So 7=7/1
to put a 9 in the bottom and make the fraction stay the same, multiply it by 1
or 9/9 since 9/9=1 so
7/1 times 9/9=(7 times 9)/(1 times 9)=63/9
answe ris 63/9
6 0
3 years ago
Read 2 more answers
Write the decimal as a fraction a mixed number in simplest form. <br> -1.46(6 repeating)
marishachu [46]

Answer:

-1 46/100 and -146/100 are your answers you cannot simplify past this point

Step-by-step explanation:

5 0
3 years ago
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