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4 years ago

Simplify these expression. a.4c+9+3. b. 10x+(-4)+(-10) c.-9+3x+14. d.11y+6+(-7)

Mathematics

1 answer:

Alenkasestr [34]4 years ago

5 0

Answer:

a)4c +12 b)10x + -14 c) 3x+5 d)11y+(-1)

Step-by-step explanation:

as the nos without the variables can be added we can add the integers

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A birthday cake is being made using a cylindrical baking pan. The radius of the pan is 4 inches, and the height is 5 inches whic

Aleonysh [2.5K]

Answer:

This formula:

Cylinder Volume = π • r² • height

Volume = PI * 4 ^2 * 5

Volume = PI * 16 * 5

Volume = 251.327412 cubic inches

Step-by-step explanation:

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3 years ago

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Aunt Thelma planted an herb garden. She planted rosemary in 2/9 of the garden. She

Reptile [31]

Answer:

$\dfrac{17}{45}$

Step-by-step explanation:

Fraction on which Rosemary was planted $=\dfrac{2}{9}$

Fraction on which dill was planted $=\dfrac{2}{5}$

Let the fraction on which chives was planted=x

Then:

$\dfrac{2}{9}+\dfrac{2}{5}+x=1\\$Since the LCM of 9 and 5 is 45\\We multiply all through by 45\\45\left(\dfrac{2}{9}\left)+45\left(\dfrac{2}{5}\right)+45x=45(1)$\\10+18+45x=45\\45x=45-28\\45x=17\\Divide both sides by 45\\x=\dfrac{17}{45}$

The fraction of the garden on which Chives was planted is $\dfrac{17}{45}$

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4 years ago

Please help. What is the solution for -10 < x - 9?

yulyashka [42]

Answer:

x>-1

Step-by-step explanation:

-9 goes to the left side of the equation making it +9 so 9-10>x which results in -1<x

7 0

4 years ago

For the following system.

SSSSS [86.1K]

This problem can be converted into a linear algebra problem. The condition is that if the derminant below is not zero, then the system has one solution.
| k 1 1 |
| 1 k 1 | = k^3 - 3k + 2 = 0
| 1 1 k |

Solving for the roots, k = -2, and k = 1.

When k = 1, the three equations are the same so there are infinite solutions.

When k = -2, there are no solutions.

When k /= -2 and k /= 1, there is one solution.

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3 years ago

SOMEONE HELP ???? Select steps that could be used to solve the equation 1+ 3x = -x+4

Alex

Answer:

a) add x , subtract 1 and divide by 4

The solution of given equation $x = \frac{3}{4}$

Step-by-step explanation:

Given equation 1+3 x = -x +4

Add 'x' on both sides , we get

1 + 3 x + x = - x + x +4

1 + 4 x = 4

Subtract '1' on both sides , we get

1+4 x -1 = 4 -1

4 x = 3

Dividing '4' on both sides, we get

$\frac{4x}{4} = \frac{3}{4}$

$x = \frac{3}{4}$

Final answer:-

The solution of given equation $x = \frac{3}{4}$

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4 years ago