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Elodia [21]
3 years ago
13

P(n)=2n^2-6n find p(4)

Mathematics
1 answer:
Igoryamba3 years ago
4 0

let's solve for p(4) :

  • 2 {n}^{2}  - 6n

  • 2 \times (4) {}^{2}  - (6 \times 4)

  • (2 \times 16) - 24

  • 32 - 24

  • 8
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The recommended angle for a wheelchair ramp is 5 degrees. If the rise of the ramp to go up the steps is 5 feet, find the horizon
dybincka [34]

Answer:

57.2\ ft

Step-by-step explanation:

we know that

The formula of slope is "rise over run", where the "rise" (means change in y, up or down) and the "run" (means change in x, left or right)

In this problem

The tangent of angle of 5 degrees is equal to the quotient of "rise over run"

Let

y ----> the rise of the ramp

x ----> the run of the ramp

tan(5^o)=\frac{y}{x}

we have

y=5\ ft

substitute and solve for x

tan(5^o)=\frac{5}{x}

x=\frac{5}{tan(5^o)}

x=57.2\ ft

5 0
4 years ago
PLEASE HELP, ANYONE? 15m is what percent of 60m; 3m; 30m; 1.5 km?
WITCHER [35]

Answer:

15/60 = 1/4 = 25%

15/3 = 5/1 = 500%

15/30 = 1/2 = 50%

15/1500 = 1/100 = 1%


4 0
3 years ago
Find the length of the missing side of the triangle below. Give both exact and approximate answer. Round answer to nearest tenth
Drupady [299]

Answer:

c = √85

c = 9.2

Step-by-step explanation:

a² + b² = c²

7² + 6² = c²

49 + 36 = c²

85 = c²

c = √85

c = 9.2

4 0
3 years ago
Greatest common factor of 88 and 48
kupik [55]
GFC is 8. Use a tree of 88 and 48. 88= 2^3 x 11 or 2 x 2 x 2 x 11

48=2^4 x 3 or 2 x 2 x 2 x 2 x 3 see how many groups count as the number once and multiply and bam GFC. Hope I helped! (:
4 0
3 years ago
In the sophomore class at Dixon high school the number of students taking French is 2/3 of the number taking Spanish. How many s
Alex777 [14]
F=2/3 of S
F+S=310

2/3 S + S = 310

(2S + 3S)/3=310
S=[(310)(3)]/5
S=186 students taking Spanish

F=2/3 of 186
F=124 students taking French
3 0
3 years ago
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