3 years ago

Cristina has completed .4 of his test. The test has 40 questions total. if he completes 12 more how many more will he have left?

Mathematics

1 answer:

bixtya [17]3 years ago

5 0

24 because she already completed four and if she completes twelve more that that will be 24 hope that helps

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Which of the following is a term in the<br> expression 3x2 + 5x +9?

Sergio [31]

Answer:

Two.

Step-by-step explanation:

In algebra, a term is either a single number or variable, or numbers and variables multiplied together. In any equation, all of the numbers there that aren't divided by a mathematical operation (times or divide symbols) are terms.

3x2 isn't a term, it's an expression - but 5x and 9 are, so therefore there are 2 terms.

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2 years ago

Si p+ 2p+3p=12, ¿cual es el valor de 5p -1

Nutka1998 [239]

For this case we have the following equation:

$p + 2p + 3p = 12$

To solve we follow the steps below:

We add similar terms from the left side of the equation:

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Finally, we have to:

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Q. If A is a square matrix such that A² = A, then write the value of 7 A −(I + A)³, where I is an identity matrix.

andriy [413]

Answer:

7A−(I + A)³

=7A−(1³ + A³ +3.I.A² +3.1².A)

=7A−(I+ A².A+3A² +34)

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