3 years ago

Write an expression to represent the product of 6 and the square of a number plus 15.

Mathematics

1 answer:

Leona [35]3 years ago

5 0

Answer:

D (6)

Step-by-step explanation:

6x^2 + 15

the number next to the variable ( the unknown) is always the coefficient

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the average rainfall in Clearview is 38 inches . this year 29.777 inches fell . How much less rain fell this year than falls in

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38 (average) - 29.777 (this year) = 8.223 inches less this year than the average year.

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4 years ago

When a third of a number is subtracted from a half of the same number, 60 is the result. Find the number

AURORKA [14]

the answer is 360 because if you take a third you will have 120 then if you take half of that then you get 60

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3 years ago

How many roots does the following equation have? f(x) = 4x5 - 16x4 + 17x3 - 19x2 + 13x - 3 = 0

Anarel [89]

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3 years ago

What is the x-coordinate of the solution of the system? x+y+3 4x-y=-38

steposvetlana [31]

Note: I am assuming the first equation is:

x+y = 3

Answer:

The solution to the system of equations is:

(x, y) = (-2, 36)

Therefore, the x-coordinate of the solution of the system

x = -2

Step-by-step explanation:

Given the system of equations

$\begin{bmatrix}x+y=34\\ x-y=-38\end{bmatrix}$

subtracting the equations

$x-y=-38$

$-$

$\underline{x+y=34}$

$-2y=-72$

solve -2y for y

$-2y=-72$

Divide both sides by -2

$\frac{-2y}{-2}=\frac{-72}{-2}$

$y=36$

For x+y=34 plug in y = 36

$x+36=34$

Subtract 36 from both sides

$x+36-36=34-36$

Simplify

$x=-2$

Thus, the solution to the system of equations is:

(x, y) = (-2, 36)

Therefore, the x-coordinate of the solution of the system

x = -2

6 0

3 years ago

Simplify (3a ^2)^ 3

Leya [2.2K]

The answer is 27a^6
Hope this helps.

7 0

3 years ago