Kimjeinsopeminviz
Answered

Answer the following. Label the answer completely if applicable.

1. If x = 5 and y = -2, what is the value of x² + 3y ?

2. If m = 1, a = 3, t = -2 and h = 5, evaluate ma³/t²+h. Express your answer in simpliest form if possible.

3. Find the volume (V) of a box if its length (l) is 25 cm, width (w) is 10 cm and heigth (h) is 5 cm. (Hint: V = lwh)

4. Find the sum of 9x - 4 and 18x² - 3x + 8.

5. Find the polynomial representing the perimeter of a rectangular lot if its length is 3b² + b - 3 feet and its width is 8b + 9 feet.

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Sagot :

Kodoku1viz

Answer:

1.) 19

2.)-1.75 or

[tex] - \frac{7}{4} [/tex]

3.)1250

4.) 18x²+6x+4

5.) 6b²+18b+12

Step-by-step explanation:

1.) 5²+3(-2)

25+(-6)

19

2.) (1)(3)³÷(-2)²+5

(3)³÷(-2)²+5

27÷-4+5

-6.75+5

-1.75 or

[tex] - \frac{7}{4} [/tex]

3.) (25)(10)(5)

1250

4.) (18x²-3x+8)+(9x-4)

9x-4+18x²-3x+8 (Subtract)

6x-4+18x²+8 (Add)

6x+4+18x² (Arrange)

18x²+6x+4

5.) 2(3b²+b-3)+2(8b+9)

6b²+2b-6+16b+18 (Add)

6b²+18b-6+18 (Add)

6b²+18b+12

SANA MAKATULONG❤️