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Ilya
1 month ago
8

what are some advantages of writing the polynomial expression -7x^2+32x+240 in factored form when interpreting this situation ​

Mathematics
1 answer:
Inessa [12.1K]1 month ago
6 0

Step-by-step explanation:

The benefits of representing the polynomial expression

-7x^{2} + 32x + 240 in its factored form for analyzing this

scenario

Factoring the quadratic expression results in

-7x^{2} + 32x + 240

-7x^{2} + 60x - 28x + 240

x×(-7x + 60) - 4×(-7x + 60)

(x-4)×(-7x + 60)

The equation's roots are noted as 4,-60/7

Benefits of representing the polynomial expression in factored form:

  • the roots are readily identifiable
  • graphing the quadratic becomes straightforward
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At the warm-up event for Oscar’s All Star Hot Dog Eating Contest, Al ate one hot dog. Bob then showed him up by eating three hot
Inessa [12160]

Answer: Zeno consumed 51 hot dogs.

The total number of hot dogs consumed was 676.

Step-by-step explanation:

Al started by eating one hot dog. Bob then outperformed him by devouring three hot dogs. Carl, not wanting to fall behind, ate five hot dogs. This pattern continued, with each participant consuming two hot dogs more than the previous one. This indicates that the quantity of hot dogs eaten by each contestant followed an arithmetic sequence.

The formula for finding the nth term in an arithmetic series is given by

Tn = a + (n - 1)d

Where

a denotes the first term in the sequence.

d signifies the common difference.

n stands for the total terms in the sequence.

<pBased on the details provided,

a = 1 hot dog

d = 3 - 1 = 2 hot dogs

We aim to find how many hot dogs the 26th contestant, T26, consumed. Thus,

T26 = 1 + (26 - 1)2 = 1 + 50

T26 = 51 hot dogs

The formula to calculate the sum of n terms in an arithmetic sequence is

Sn = n/2[2a + (n - 1)d]

Hence, to find the total number of hot dogs consumed by 26 contestants, S26 is calculated as

S26 = 26/2[2 × 1 + (26 - 1)2]

S26 = 13[2 + 50]

S26 = 13 × 52 = 676 hot dogs

5 0
1 month ago
An upscale resort has built its circular swimming pool around a central area that contains a restaurant. The central area is a r
zzz [11851]

The triangle is positioned within the circle, with its vertices lying on the circle's edge - since the center of the circle is located on the hypotenuse, that hypotenuse serves as the diameter (D) of the circle.

:

D = 120 feet

:

Calculating the circumference of the circle gives: 22/7 * 120 = 377.14 feet.

The perimeter of the triangle is calculated as 120 + 60 + 103.92 = 283.92

:

********************************************************

1) The combined distance around both circle and triangle totals 661.06 feet.

********************************************************

:

**************************************************************

2) The vertices for the triangle's central area must touch the circular pool - to find the center of the pool, draw perpendicular bisectors from two of the triangle's sides; where they meet is the center.

The distance from the center to any vertex of the triangular area represents the radius of the


circular pool.

**************************************************************

:

*****************************************************************

3) The intersection of the triangle's angle bisectors indicates the center of the shark tank.

*****************************************************************

:

***********************************************************

4) The pool's volume is calculated as ((π * 60^2) - area of triangle) * 4 =

(11314.285) - (1/2 * 103.92 * 60) * 4 = 32786.74 cubic feet.

***********************************************************

:

*****************************************

5) 8196.685 * x < 30000

x < 3.66 feet

The average depth needs to be below 3.66 feet

*****************************************



5 0
1 month ago
A bicycle factory installs about 400 tires per day. Tires are installed Monday through Friday for 8 hours per day. The manager o
Inessa [12160]
The findings are probably not valid since it is improbable that the tires fitted in just one hour on Monday accurately reflect the whole population of tires.Step-by-step explanation: Out of 8 hours, do you truly believe that one hour could stand for all? This is the reason the results are likely invalid (I also participated in the quiz).
8 0
21 day ago
Read 2 more answers
A factory produces 5-packs of pencils. To be within the weight specifications, a pack of 5 pencils should weigh between 60 grams
zzz [11851]
Given:
1 pack = 5 pencils and cardboard.
1 pack should weigh between 60 grams and 95 grams

60g < x < 95g; where x signifies 1 pack.

Cardboard: 15 grams.

95g - 15g = 80g represents the maximum total weight of 5 pencils.
80g / 5 = 16g is the maximum weight for a single pencil.

60g - 15g = 45g is the minimum total weight of 5 pencils.
45g / 5 = 9g is the minimum weight for a single pencil.

9 < x < 16; where x represents a single pencil in the pack.

8 0
5 days ago
Leah loves chicken wings and is comparing the deals at three different restaurants. Buffalo Bills has 888 wings for \$7$7dollar
Svet_ta [12291]

At Buffalo Bills, the cost for chicken wings is 8 wings for $7.

The price for a single wing at Buffalo Bills is \frac{7}{8} =0.875.

At Buffalo Mild Wings, the offer is 12 wings for $10.

The price for one wing at Buffalo Mild Wings is \frac{10}{12}= 0.833.

Wingers offers 20 wings for $17.

The cost for a single wing at Wingers is \frac{17}{20}= 0.850.

By evaluating the prices of wings at these three places, we find that Buffalo Mild Wings has the lowest cost, at $0.833 per wing.

8 0
1 month ago
Read 2 more answers
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