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3 years ago

7 + 3 × 9 – 5 I need help with this!

Mathematics

2 answers:

Genrish500 [490]3 years ago

8 0

29 is your answer

please mark me the brainleist

omeli [17]3 years ago

7 0

7+3×9×0
7+27×0
7+0
<span>7

I hope this helps!</span>

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Five twelfths ot the participants at a conference brought laptop computers with them

elena-14-01-66 [18.8K]

The number of participants with laptop is 115 and without laptop is 161

<u>Step-by-step explanation:</u>

Total number of participants= 276

Participants with laptop = (5/12) 276

= 115

Participants without laptop= 276 - 115

= 161

5 0

3 years ago

What is the answer to (14x-35)/7=7

IceJOKER [234]

Your not being very discriptive... BUT if you are finding 'x'...
(14x-35)/17=7
*17 *17
14x-35=119
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14x=154
/14 /14
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3 years ago

150 students attended the event they were 60 cars in the student parking lot what was the ratio of students to cars?

tatyana61 [14]

150 to 60. But the more commen why to do that were to simplify it.

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3 years ago

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Please help Me!! D: There is a pi in there in 972.

Nana76 [90]

V = 4/3 pi r^3

r^3 = 3V / 4pi

r^3 = (3 * 972pi) /(4pi)

r^3 = 729

r = 9

Answer

B. 9 inches

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3 years ago

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Evaluate A + 3B if possible. HELP ASAP!

madreJ [45]

Answer:

Not possible.

Step-by-step explanation:

Addition of Matrix A and Matrix B is possible only if the order of matrix A is same as the order of matrix B.

Order of a matrix with $m$ rows and $n$ columns is $m\times n$ .

Here, matrix A is $\left[\begin{array}{ccc}2&-4\\-4&10\\0&-8\end{array}\right]$

Matrix B is $\left[\begin{array}{ccc}0&-4&6\\2&-10&4\end{array}\right]$ .

Multiplying a matrix by a constant doesn't change its order.

So, order of matrix A is $3\times 2$ as it has 3 rows and 2 columns.

The order of matrix 3B is $2\times 3$ as it has 2 rows and 3 columns.

Therefore, addition is not possible as the order is different.

4 0

3 years ago