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slava [35]
3 years ago
15

A number, x, decreased by the sum of 2x and 5 Please show work!!!!!! Thank you!!!!

Mathematics
1 answer:
Natali5045456 [20]3 years ago
7 0
Ive got a soulution
the number is 3 times the sum of its digits
45 is added=4+5=9so,a common numbers in 3rd and 9th table
9,18,27,36,45...
27+45=72
2+7=9
or
4+5=9
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Which sequence of transformations performed on shape I confirms the congruence of shape II and shape I?
vampirchik [111]

Answer:

Option D. a 180° rotation about the origin and then a translation left 8 units.

Step-by-step explanation:

See the attached figure_1

From the graph: Point A'(-12,-6) is the image of point A(4,6)

We will check which sequence of transformations is true:

A. a reflection across the y-axis and then a translation down 16 units

A(4,6) ⇒(-4,6)⇒(-4,-10)   <u> (Wrong sequence)</u>

B. a 90° counterclockwise rotation about the origin and then a translation down 8 units

A(4,6) ⇒(-6,4)⇒(-6,-4)    <u>(Wrong sequence)</u>

C. a 90° clockwise rotation about the origin and then a translation left 16 units

A(4,6) ⇒(6,-4)⇒(-10,-4)    <u>(Wrong sequence)</u>

D. a 180° rotation about the origin and then a translation left 8 units

A(4,6) ⇒(-4,-6)⇒(-12,-6)A'   <u>(True sequence)</u>

<u></u>

Note: the rules is the attached figure_2

4 0
3 years ago
Read 2 more answers
Use diagram to answer 3(x+6)=30
Katyanochek1 [597]

Answer:

Step-by-step explanation:

3x + 18 = 30

3x + 18 -18 = 30 - 18

3x = 12

x = 4

5 0
3 years ago
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The total weekly earnings equal $12 per hour times the number of hours worked
Vesna [10]
Like i said before, if this is asking for an equation, it would be 12x
6 0
3 years ago
Is 9(-5)^x exponential?​
olga2289 [7]

Answer:

  yes

Step-by-step explanation:

The variable is in the exponent, so this is considered to be an exponential expression. (yes)

7 0
3 years ago
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Help<br><br><br><br><br><br> Thrhfjfhfhhfhfhfjf
12345 [234]

Answer: 5

Step-by-step explanation:

a^2 + b^2 = c^2

12^2 + x^2 = 13^2

144 + x^2 = 169

x^2 = 25

square root both sides

x = 5

to check, do 12^2 + 5^2 =169

sqrt of 169 is 13

hope this helps

4 0
2 years ago
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