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3 years ago

What is the greatest common factor (GCF) of 45 and 63?

Mathematics

1 answer:

Tju [1.3M]3 years ago

3 0

Answer:GCF of 45 and 63 is 9.

Step-by-step explanation:

factors of 45 are 1,3,5,9,15,45

factors of 63 are 1,3,7,9,21,63

so the greatest common factor or GCF of 45 and 63 is 9

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-4n+3>23 A. -5 B. 5 C. -9 D. -20 E. 20

Pani-rosa [81]

It will be 20 after u subtract

6 0

3 years ago

Which number can each term of the equation be multiplied by to eliminate the fractions before solving

zhuklara [117]

Answer:

Answer D: 12

Step-by-step explanation:

Three distinct denominators are shown here: 4, 3 and 2. The LCD is 12.

This corresponds to answer D.

4 0

3 years ago

PQ is rotated 180 degrees clockwise about P. What are the coordinates of P' and Q'?

Salsk061 [2.6K]

The co ordinates of P' is (-7,-2) and Q' is (-16, -8)

Explanation

PQ is rotated 180 degrees clockwise about P. It means P and P' are the same points.

According to the graph, the coordinates of P is (-7, -2) and Q is (2, 4)

When PQ is rotated 180 degrees clockwise about P, then P or P' will be the mid-point of Q and Q'

Suppose, the co ordinate of Q' is (x, y)

Now according to the mid-point formula, the coordinate of P or P' will be: $(\frac{x+2}{2},\frac{y+4}{2})$ , which is actually at (-7, -2)

Thus.....

$\frac{x+2}{2}=-7\\ \\ x+2=-14\\ \\ x= -16\\ \\ and\\ \\ \frac{y+4}{2}= -2\\ \\ y+4= -4\\ \\ y= -8$

So, the co ordinates of P' is (-7,-2) and Q' is (-16, -8)

6 0

3 years ago

Find the word or phrases that best complete the sentence intersecting planes ___ intersect in exactly one point

mars1129 [50]

Answer:

never

Step-by-step explanation:

Intersecting planes are planes that intersect along a given line.

To explain this better, consider the following definitions:

i. A point: This is denoted by a dot and it is a location marked on a space or a plane.

ii. A line: This is the distance between two points. It is one-dimensional.

iii. A plane: This is a two-dimensional, flat surface with no thickness formed by points and extends infinitely.

Therefore, since intersecting planes intersect along a line, it is not possible that they intersect in exactly one point given that a line is the distance between points.

3 0

3 years ago

The quotient of b and 2 minus 4 is at least 26. I need this ASAP

Pavlova-9 [17]

For this case we must express the following expression algebraically:

"The quotient of b and 2 minus 4 is at least 26"

So we have to:

The quotient of b and 2 minus 4, is represented as: $\frac {b} {2-4}$

We have different signs subtracted and the sign of the major is placed:

$\frac {b} {- 2}$

Thus, the expression is written as:

$\frac {b} {2-4} \geq26\\\frac {b} {- 2} \geq26\\- \frac {b} {2} \geq26$

ANswer:

$\frac {b} {2-4} \geq26$

3 0

3 years ago