Hello there! When it comes to scientific notation, a number greater than or equal to 1, but less than 10 is multiplied by a power of 10. For example: 3.45 * 10^6. 0.95 is less than 1, so the first one is not in scientific notation. All of the others fit, because the numbers are greater than 1, but less than 10, and are mutliplied by a power of 10. The answer is A.
Answer:
The surface area of the prism is 386m²
Step-by-step explanation:
The surface area of a box is equal to the sum of the areas of each side of the box.
Substitute the values of the length l=15, the width w=7, and the height h=4 into the formula.
Simplify each term.
Simplify by adding numbers.
Hence, the Surface area of this prism is 386m².
Answer:
h = 2
Step-by-step explanation:
7h = -(2h-18)
7h = -2h + 18
9h = 18
h = 18/9
h = 2
Answer:
{y,x}={-5,7}
Step-by-step explanation:
[1] y=3x-26
[2] 2x-y=19
// Solve equation [1] for the variable y
[1] y = 3x - 26
// Plug this in for variable y in equation [2]
[2] -(3x-26) + 2x = 19
[2] - x = -7
// Solve equation [2] for the variable x
[2] x = 7
// By now we know this much :
y = 3x-26
x = 7
// Use the x value to solve for y
y = 3(7)-26 = -5