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2 years ago

HELP PLEASE! Thank youuuuu

Mathematics

1 answer:

Nitella [24]2 years ago

6 0

Answer:

Step-by-step explanation:

note that the exact value of

sin ( $\frac{\pi }{4}$ ) = $\frac{1}{\sqrt{2} }$ = $\frac{\sqrt{2} }{2}$ ← the value of the x- coordinate

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3(2a+6)= distributive property

goldenfox [79]

6a+18 should be your answer

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2 years ago

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Anyone help with this math question please dont geuss

Yanka [14]

Answer:

For each ticket sold they earned 3 dollars

Step-by-step explanation:

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2 years ago

Jerry was using matrices to solve the system of three equations. He has shown all his steps. Did he make a mistake if so in what

melomori [17]

There are several ways to solve a system of equation; one of these ways is the use of matrix.

<em>Jerry made a mistake at step 2</em>

From the attachment, the step 1 is represented as:

$\mathbf{\frac 12R_1 \left[\begin{array}{cccc}1&1&1&0\\5&3&-2&-4\\3&2&1&1\end{array}\right] }$

The equation in step 2 is given as:

$\mathbf{R_2 = 5R_1 - R_2}$

This means that:

We subtract the elements of row 2 from the elements of row 1, multiplied by 5

So, we have:

$\mathbf{R_2 = 5\left[\begin{array}{cccc}1&1&1&0\end{array}\right] } - \left[\begin{array}{cccc}5&3&-2&-4\end{array}\right] }$

Expand

$\mathbf{R_2 = \left[\begin{array}{cccc}5&5&5&0\end{array}\right] } - \left[\begin{array}{cccc}5&3&-2&-4\end{array}\right] }$

Subtract corresponding cells

$\mathbf{R_2 = \left[\begin{array}{cccc}0&2&7&4\end{array}\right] }$

So, the new row 2 elements should be:

$\mathbf{ \left[\begin{array}{cccc}0&2&7&4\end{array}\right] }$

However, the row 2 elements of Jerry's steps are:

$\mathbf{R_2 = \left[\begin{array}{cccc}0&-2&-7&-4\end{array}\right] }$

This means that:

Jerry made a mistake; and the mistake is at step 2

Read more about matrix at:

brainly.com/question/21848291

4 0

1 year ago

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Which of the following is an equivalent expression to the expression a1/3 / a1/4

mixas84 [53]

Answer:

Option A :- $\sf {a}^{\frac{1}{12}}$

Step-by-step explanation:

$\hookrightarrow \sf \: \frac{ {a}^{ \frac{1}{3} } }{ {a}^{ \frac{1}{4} } }$

Simplify the expression

$\hookrightarrow \sf \: {a}^{ \frac{1}{3} - \frac{1}{4} }$

Transform the Expression

$\hookrightarrow \sf \: {a}^{ \frac{4 - 3}{12} }$

Calculate

$\hookrightarrow \sf {a}^{\frac{1}{12}}$

4 0

1 year ago

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Please answer quickly

Pie

Answer: subtraction
Reasoning: You need to subtract 3 from both sides first.

7 0

2 years ago

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