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Alex Ar [27]
3 years ago
9

Which word phrases represent the variable expression 7d? Choose all answers that are correct. A. the product of 7 and a number B

. the sum of 7 and a number C. 7 times a number D. a number divided by 7
Mathematics
2 answers:
amm18123 years ago
8 0
A and D are correct.
Trava [24]3 years ago
3 0

Its actually A. and B. Because if a number is at the end of a number like this 7d  its always multiplication.

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The measures of two complementary angles are 12q-9 and 8q+14 . Find the measures of the angles.
Lostsunrise [7]

Answer:

4.25

Step-by-step explanation: 12q - 9 ) + ( 8q + 14 ) = 90

Combine like Terms: 20q + 5 = 90

Subtract 5 from both sides: 20q = 85

Divide both sides by 20: q=4*(1/4)

So your angle is 4(1/4) or 4.25 degrees

8 0
3 years ago
Direction: True or False
Goshia [24]

Answer:

<u>False </u>Any three points are always coplanar

<u>False </u>Two points are always collinear

<u>False </u>Two planes intersect at a point

Read explanations, as the answer to these questions, is subjective.

Step-by-step explanation:

The definition of coplanar is; figures that exist on the same plane. Any three points might not always be colinear, as some points might exist on one plane, but other points could exist on other planes. To visualize this phenomenon, refer to the attached image. Two points could be on the red plane, but the third could be on the green. Therefore, while there are three points, not all of them exist on the same plane. However, another plane can be constructed to connect these points, bear in mind certain problems might specifically indicate that three points are not coplanar, therefore, the answer is false.

The definition of collinear is existing on the same line. This statement is a little subject, it can be both true and false depending on the way one looks at it. A line can be drawn to connect any two points, one only needs two points to determine a line. So technically two points are always collinear. However, it also depends on the circumstance. Certain geometry problems might specifically indicate that two points are not collinear. Thus, it really depends on the context. Therefore, the answer is technically false.

Two planes usually intersect on a line. To understand this, please refer to the image attached. Tehcnailly, if a corner of one plane intersects another, then one can state that the plane intersects on a point, but typically, planes intersect on lines. Therefore, technically the answer to this problem is false, as two planes usually intersect on a line.

Images credits: Geogebra

8 0
3 years ago
Read 2 more answers
PLZZZZZZZZZZZZZ HELP Simplify the expression.<br><br> –5^4
spin [16.1K]

Answer:

625

Step-by-step explanation:

All it is saying to do is to do -5x-5x-5x-5

6 0
3 years ago
Read 2 more answers
Which of the following expressions is equivalent to 3x + 3x + 5 + 5?
Kipish [7]
Remember
ab+ac=a(b+c0

3x+3x+5+5
2(3x)+2(5)
2(3x+5)

2nd option
4 0
3 years ago
Read 2 more answers
• How do you write the mixed number shown as a fraction greater than l? 3 4​
Firdavs [7]

Answer:

\frac{14}{4}

simplified \frac{7}{2}

Step-by-step explanation:

To turn a mixed number into a fraction :

3\frac{ + 2}{ \times 4}

3 x 4 =12 +2 =14 that will be your numerator (top number on a fraction)

and 4 will be your demoninator (bottom number)

8 0
3 years ago
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