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Vikentia [17]
3 years ago
14

Solve C= AB + D for B

Mathematics
2 answers:
saw5 [17]3 years ago
8 0

Answer:

d=-ab+c

Step-by-step explanation:

Evgesh-ka [11]3 years ago
8 0

c = ab + b

Subtract b to both sides

c - b = ab

divide a to both sides

(c -b)/a = b

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A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure? 12° 45° 72° 90°
iren2701 [21]

Answer:

Option (3). 72°

Step-by-step explanation:

Angle of rotational symmetry = Central angle of a polygon

That means when we rotate the regular polygon by a central angle, polygon overlaps itself.

Central angle of a polygon with n sides = \frac{360}{n}

Where n = number of sides of the polygon

Therefore, central angle of a polygon with 15 sides = \frac{360}{15}

                                                                                     = 24°

Central angle tells us that after every 24° of rotation, polygon overlaps itself.

Angle of rotational symmetry may be 48°, 72°, 96°.....

Therefore, Option (3) is the possible angle of rotational symmetry.

7 0
3 years ago
Read 2 more answers
Solve for y. Then find the values of y that correspond
julsineya [31]

7.

y + 8x = -2

f(x) = y = -8x - 2

f(0)=-2, f(1)=-10, f(2)=-18, f(-2)=14

8.

12x + 3y = 15

3y = -12x + 15

f(x) = y = -4x + 5

f(-1)=9, f(0)=5, f(1)=1

9.

y - 3x = 9

f(x) = y = 3x + 9

f(-2)=3, f(0)=9, f(2)=15

10.

0.4y + 2x = 1.2

4y + 20x = 12

4y = -20x + 12

f(x) = y = -5x + 3

f(-3) = 18, f(0)=3

6 0
3 years ago
​One-sixth equals the quotient of a number and 30. Find the number.
Makovka662 [10]
180 because 30/180 can be simplified to 1/6 by dividing both numerator and denominator by 30

5 because 5/30 can be simplified to 1/6 by dividing both numerator and denominator by 5
5 0
3 years ago
Please help I really need to give this in tomorrow I will give you a thanks please
noname [10]
Lily has 1 point and rosie has 14 points so rosie is the winner
4 0
3 years ago
Read 2 more answers
Can you show me the working out for the first list and give me the answers in the simplest forms for the second one
BabaBlast [244]
Sorry about my handwriting...
And I couldn't see thing whole thing...

5 0
3 years ago
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