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choli [55]
2 years ago
6

Pls answer this for me, this is the remainder theorem for grade 9 so help me.

Mathematics
1 answer:
scZoUnD [109]2 years ago
3 0
1) Let f(x) be x^3+5x^2+2x+1
Since f(x) is divided by x+1,
R= f(-1) = (-1)^3 + 5(-1)^2+2(-1) + 1
= -1+5-2+1
= 3
2) Let f(x) be x^3 - 6x + 5x +2
Since f(x) is divided by x-5,
R= f(5) = x^3 - 6x^2 + 5x +2
= 5^3 - 6(5)^2 + 5(5) +2
= 125 - 150 + 25 + 2
= 2
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Select the example which illustrates the distributive property. (7 x 39), 39 x 7 7(30 + 9) = 7(30) + 7(9) (7 + 3) (7 + 9) (7 x 3
Andreyy89
Answer is 7(30+9)=7(30)+7(9)
4 0
2 years ago
What is the value of 4 1/3÷1/9?Enter your answer as a fraction in simplest form, like this: 3/14
Vlada [557]

Hey there!

  • \bold{4\frac{1}{3}\times\frac{1}{9}}
  • \bold{4\frac{1}{3}=\frac{13}{3}}
  • \bold{\frac{13}{3}(\frac{1}{9})}
  • \bold{13\times1=13}
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8 0
3 years ago
Carol is standing 8 feet from a lamppost. The angle of elevation from her eyes to the top of the lamppost is 20o, and the angle
kupik [55]

Answer:

Height of the lamppost = 5.602 ft + 2.912 ft = 8.514 ft

Step-by-step explanation:

The illustration form a triangle that can be demarcated into 2 right angle triangle. One triangle representing depression triangle and the other elevation triangle.

Depression triangle

The opposite side of the triangle formed is the length of the pole from the base to the horizontal line of sight. Therefore,

using tangential ratio

tan 35° = opposite/adjacent

tan 35° = a/8

cross multiply

a = 8 tan 35°

a = 8 × 0.70020753821

a = 5.60166030568

a = 5.602 ft

Elevation triangle

The opposite side of this right angle triangle represent the length from the horizontal line of sight to the top of the lamppost.

tan 20° = opposite/adjacent

tan 20° = b/8

cross multiply

b = 8 tan 20°

b = 8 × 0.36397023426

b = 2.91176187413

b = 2.912 ft

Height of the lamppost = 5.602 ft + 2.912 ft = 8.514 ft

8 0
3 years ago
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laiz [17]
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7 0
2 years ago
A restaurant plans to a buy a total of 3,006
kotegsom [21]

Answer:  The question isn't finished.

Step-by-step explanation:

7 0
2 years ago
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