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3 years ago

HELP!!! 30 POINTS!!

Mathematics

1 answer:

FromTheMoon [43]3 years ago

4 0

Answer:

1. A.) 300 cm

2. D.) 1700 in

3. A.) 12 cm

4. B.) 421 FT

Step-by-step explanation:

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What is 9 7/10 divided by 3/5

Pachacha [2.7K]

9 7/10 divided by 3/5 =

97/10 divided by 3/5 =

97/10 * 5/3 =

97/6 = 16 1/6

8 0

3 years ago

Read 2 more answers

The graph of y = |2 is shifted to the left by 6 units.<br> What is the equation of the new graph?

Tasya [4]

Answer:

From your question, I am assuming you are talking about an absolute value graph. In this case the answer would be y = |2 + 6|

Step-by-step explanation: Always remember, when you are graphing absolute value graphs:

When you shift left or right, you put the amount you are shifting inside the absolute value sign.

When you are shifting up or down, you put the amount you are shifting outside the absolute value sign.

When shifting left on a graph, you usually think of subtraction. However, when dealing with absolute value graphs, when you are shifting left, you use addition, as you can see in this problem.

The same goes for right. You use subtraction when shifting right, contrary to what you may think.

However, when you go up, you still use addition, and when you shift down, you still use subtraction.

3 0

4 years ago

Given h(x) = 4x + 5 solve for when h(x) = 9 .

Temka [501]

Answer:

3x = 5

Step-by-step explanation:

9x = 4x + 5

-4x -4x

3x = 5

8 0

3 years ago

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For where it says "choose" is either is/is not or are/are not

OverLord2011 [107]

Answer:

IS NOT; ARE NOT

Step-by-step explanation:

Given: $\begin{bmatrix} \frac{1}{4} & \frac{1}{4}\\ \\-1 & \frac{-1}{2} \end{bmatrix}$

and $A = \begin{bmatrix} \frac{1}{4} & \frac{1}{4} \\\\ -1 & \frac{-1}{2} \end{bmatrix}$

We say two matrices $A$ and $B$ are inverses of each other when $AB = BA = I$ where $I$ is the identity matrix.

$I = \begin{bmatrix} 1 & 0\\ 0 & 1 \end{bmatrix}$

So, for $X$ and $A$ to be inverses of each other, we should have $AX = XA = I$ .

Let us calculate $XA$ .

$\begin{bmatrix} -2 & -1 \\ 8 & 2 \end{bmatrix}$ $\begin{bmatrix} \frac{1}{4} & \frac{1}{4} \\\\ -1 & \frac{-1}{2}\end{bmatrix}$ $=$ $\begin{bmatrix}\frac{1}{2} & 0 \\0 & 0 \end{bmatrix}$

This is clearly not equal to the identity matrix. So we conclude that the matrices are not inverses of each other.

5 0

3 years ago

Which of the following statements are true ? !

professor190 [17]

ANSWER

Both
$\sqrt{ \frac{1}{9} } \: \: and \: \: \sqrt{ \frac{49}{25} }$
are rational.

EXPLANATION

Recall that, a rational number can be written in the form
$\frac{a}{b} \: \: where \: \: b \ne0$
and also, a and b, are integers.

This means that, if the expression can be written as a common fraction, then it is a rational number.

Let us see whether we can rewrite the given expressions as common fractions.

$\sqrt{ \frac{1}{9} } = \frac{ \sqrt{1} }{ \sqrt{9} } = \frac{1}{3}$

also,

$\sqrt{ \frac{49}{25} } = \frac{ \sqrt{49} }{ \sqrt{25} } = \frac{7}{5}$

Therefore the given expressions are all rational.

The correct answer is A.

6 0

4 years ago