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3 years ago

Question 4

Mathematics

1 answer:

Anna [14]3 years ago

5 0

Answer:

f(1)= 12-31+7

Step-by-step explanation:

f(1) = -12

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Solve The Linear Equation for the stated variable.

larisa [96]

Answer:

$m=\frac{g}{4c-3}$

Step-by-step explanation:

we have

$g=4cm-3m$

Solve for m

That means-----> isolate the variable m

Factor the variable m in the equation

$g=m[4c-3]$

Divide by (4c-3) both sides

$\frac{g}{4c-3}=m$

Rewrite

$m=\frac{g}{4c-3}$

6 0

3 years ago

The 6 term of a G.P is -2\27 and it's first term is 18.what is the common ratio

Airida [17]

Answer:

r = - $\frac{1}{3}$

Step-by-step explanation:

The n th term of a GP is

$a_{n}$ = a₁ $r^{n-1}$

where a₁ is the first term and r the common ratio

Here a₁ = 18 and a₆ = - $\frac{2}{27}$ , then

18 $r^{5}$ = - $\frac{2}{27}$ ( divide both sides by 18 )

$r^{5}$ = - $\frac{1}{243}$ ( take the fifth root of both sides )

r = $\sqrt[5]{-\frac{1}{243} }$ = - $\frac{1}{3}$

4 0

3 years ago

11. Which matrix represents the system of equations below?

dimulka [17.4K]

Answer:

$\left[\begin{array}{cccc}-12&-13&13&|15\\7&-10&-3&|11\\7&14&5&\:\:\:|-5\end{array}\right]$

Step-by-step explanation:

The system of equations is;

-12x-13y +13z =15

7x-10y-3z = 11

7x+14y +5z = -5

The coefficient matrix is $\left[\begin{array}{ccc}-12&-13&13\\7&-10&-3\\7&14&5\end{array}\right]$

The constant matrix is $\left[\begin{array}{c}15\\11\\-5\end{array}\right]$

The augmented matrix is $\left[\begin{array}{cccc}-12&-13&13&|15\\7&-10&-3&|11\\7&14&5&\:\:\:|-5\end{array}\right]$

4 0

3 years ago

Rewrite the equation by completing the square.

Dennis_Churaev [7]

Once you complete the square, the simplified version of this equation is

(2x - 1)^2= 0

If you want to solve for x, subtract 1 and divide by 2.

x = 0.5

7 0

3 years ago

Is the ordered pair (-2,-2) a solution to th fiction y= 3x-8

Tema [17]

Answer:-24

Step-by-step explanation:

You multiply your numbers without the - or the +

You check ehich number is bigger and you use it symbol for the answer

Example: 3x8= 24

-8 is bigger than 3 so you use it symbol

= -24

7 0

3 years ago