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3 years ago

Write the following quotient in scientific notation:

Mathematics

2 answers:

zlopas [31]3 years ago

6 0

Answer:

-2

7*10 or 0.07 hope it helps

Aleks04 [339]3 years ago

4 0

Answer:

0.7

Step-by-step explanation:

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What is the product of the two matrices? Fill in the missing elements of the resulting matrix.

olganol [36]

The product of the given two matrices comes out to be $\left[\begin{array}{ccc}1&0\\0&1\end{array}\right]$

Here we are given the 2 matrices as follows-

$\left[\begin{array}{ccc}7&-2\\-6&2\end{array}\right] \left[\begin{array}{ccc}1&1\\3&3.5\end{array}\right]$

To find the product of 2 matrices, the number of columns in the first matrix must be equal to the number of rows in the second matrix.

Here since both of the matrices are 2 × 2, their product is possible.

Now, to find the product, we need to multiply each element in the first row by each element of the 1st column of the second matrix and then find their sum. Similarly, we do this for all rows and columns.

Therefore,

$\left[\begin{array}{ccc}(7*1)+(-2*3)&(7*1)+(-2*3.5)\\(-6*1)+(2*3)&(-6*1)+(2*3.5)\end{array}\right]$

= $\left[\begin{array}{ccc}(7)+(-6)&(7)+(-7)\\(-6)+(6)&(-6)+(7)\end{array}\right]$

= $\left[\begin{array}{ccc}1&0\\0&1\end{array}\right]$

Thus, the product of the given two matrices comes out to be $\left[\begin{array}{ccc}1&0\\0&1\end{array}\right]$

Learn more about matrices here-

brainly.com/question/13595915

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3 0

1 year ago

A parabola intersects the x-axis at x = 3 and x = 9.

Novay_Z [31]

Answer:

Step-by-step explanation:

This function corresponds to 'even' function, then

in order to calculate the 'x' of the vertex: (3+9)/2=6.

3 0

3 years ago

Read 2 more answers

A store sells a package of 12 trading cards for $5.52. Use pencil and paper. Explain how you can tell that the unit price per c

GrogVix [38]

Answer:

The cost of 12 trading cards are less than $12 so we can say that unit price of the card is lesser than $1.

Unit price per card is $0.46.

Step-by-step explanation:

Given:

Cost of 1 package of trading card = $5.52

Number of trading card in a package = 12

We need to explain how can we tell that the unit price per card is less than $1.

Also We need to unit price per card.

Solution:

Now we can see that;

Cost of 1 package of trading cards is $5.52

And we know that;

1 package contains 12 trading cards.

It means that;

Cost of 12 trading cards is $5.52.

From above we can say that;

If the cost of 12 trading cards were $12 or more than $12 than we would say that unit price of the card is $1 or greater than $1 respectively.

But the cost of 12 trading cards are less than $12 so we can say that unit price of the card is lesser than $1.

Now we will find the unite price per car.

12 trading cards =$5.52

1 trading card = Cost of 1 trading card.

Using Unitary method we get;

Cost of 1 trading card = $\frac{5.52}{12} = \$0.46$

Hence Unit price per card is $0.46.

6 0

3 years ago

Explain how 5/6 is greater then 2/3

KiRa [710]

Answer:

When you have a common denominator of 6, 2 goes to a 4 and 5/6 is greater than 4/6. That is why 5/6 is greater than 2/3.

6 0

3 years ago

Represent the following sentence as an algebraic expression, where "a number" is the letter x.

CaHeK987 [17]

Answer: 2x

Explanation:

Whenever we have a number right next to a letter, it implicitly means to multiply. So writing 2x is the same as 2*x or "2 times x". The x is a placeholder for some number.

4 0

2 years ago