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JulsSmile [24]
3 years ago
15

For all values of x. which expression is equivalent to (3x + 2) + 2(3x +2)

Mathematics
1 answer:
iris [78.8K]3 years ago
3 0

Answer:

9x+6

Step-by-step explanation:

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

3x+2+6x+4

9x+6

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Help meeee pleaseeeeeeeee
QveST [7]

Answer:

y54678

Step-by-step explanation:

vggndndhhcbcbfhfnnf

8 0
3 years ago
A tree struck by lightning broke at a point 12 feet above the ground. What was the height of the tree to the nearest tenth of a
algol13

Answer:

52.8 feets

Step-by-step explanation:

From the diagram :

The height of tree woulb be :

Height above the ground (at breakpoint) + hypotenus

Hypotenus, h cab be obtained using Pythagoras rule :

h² = opp² + adj²

h² = 39² + 12²

h² = 1665

h = sqrt(1665)

h = 40.804 feets

Height of tree to the nearest tenth ;

40.804 feets + 12 feets

= 52.804 feets

= 52.8 feets

7 0
3 years ago
1.
Westkost [7]
Circumference is 2πr or πd.
So for part 1 the diameter = 9in.
Plug in 9 into the πd formula.
π*9 = 9π in. ≈ 9*(22/7) ≈ 28.29in

For part 2 (from what I can see) they want you to find the same circumference in centimeters(cm) and use 22/7 for π so first convert the radius to cm.
9 in = 9*2.54 = 22.86cm
Next plug in the values into the Circumference formula: π*d
(22/7)*(22.86) ≈ 71.85cm

Hope this helps!

4 0
3 years ago
Solve this system of equations by using the substitution method. y=2x-5 6x+7=y
gogolik [260]

Answer:

x =  - 3 \: and \: y =  - 11

Step-by-step explanation:

L

since \: y = 2x - 5(equation \: 1) \:  \\

substitute \: for \: y \: in  \: equation \: 2 \:  (6x + 7 = y)

6x + 7 = y \\ 6x + 7 = 2x - 5 \\ collect \: like \: terms \\ 6x - 2x =  - 5 - 7 \\ 4x =  - 12 \\ x =  \frac{ - 12}{4}  \\ x =  - 3

substitute \: for \: x  in \: equation \: 1

y = 2x - 5 \\ y = 2( - 3) - 5 \\ y =  - 6 - 5 \\ y =  - 11

7 0
2 years ago
Read 2 more answers
-x-7>-15 or -x7 solve for x and find inequality notation, and u need to graph on a number line
aalyn [17]

Answer:

The answer is

Inequality Form:

x<8

Interval Notation:

(−∞,8)

Step-by-step explanation:

Hope that helps. :)

Can you mark me as Brainliest

6 0
3 years ago
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