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Savatey [412]
3 years ago
6

Help!!! 2x+3=6 solve for x

Mathematics
2 answers:
Monica [59]3 years ago
7 0

Answer:

9/2 brainliest plz I think this wrong but idk

Step-by-step explanation:

xz_007 [3.2K]3 years ago
5 0

Answer: x = 1.5

Step-by-step explanation:

Subtract 3 from each side.

2x = 3

Divide both sides by 2

x = 1.5

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The volume of a cubed shaped music box is 512 cubic centimeters find the surface area of the music box
AfilCa [17]

The surface area of music box is 384 square centimeter

<em><u>Solution:</u></em>

Given that,

Volume of cubed shaped music box = 512 cubic centimeter

To find: Surface area of music box

<em><u>The volume of cube is given as:</u></em>

volume = a^3

Where, "a" is the length of side

Therefore,

512 = a^3

Taking cube root on both sides,

a = \sqrt[3]{512}

a = \sqrt[3]{8 \times 8 \times 8}\\\\ a = \sqrt[3]{8^3}

a = (8^3)^{\frac{1}{3}}

a = 8

Thus length of side of cube is 8 cm

<em><u>Find surface area of cubed shaped music box</u></em>

<em><u>The surface area of cube is given as:</u></em>

A = 6a^2

Substitute a = 8 in above formula

A = 6(8)^2\\\\A = 6 \times 64\\\\A = 384

Thus surface area of music box is 384 square centimeter

8 0
3 years ago
Write the recursive formula of 13, 9, 5...
lukranit [14]

Step-by-step explanation:

a(n) = a +(n-1)d

a=13

d=9-13=5-9=-4

°.° a(n) = 13 +(n–1)-4

hope this helps

7 0
3 years ago
A sprinter ran 100 meter dash in 10.92 seconds. What was the sprinters speed in miles per hour
tresset_1 [31]
The formula for working out speed :

speed = distance ÷ time.

substitute the numbers : 100m ÷ 10.92s.

give your answer in meters per second ( m/s )

the answer I got while working this out was:
9.2 m/s.
8 0
3 years ago
Read 2 more answers
Evaluate the expression when b= -2, b2 +6b +9
Tema [17]

Answer:

1

Step-by-step explanation:

b= -2, b2 +6b +9

=-2(2)+6(-2)+9

=-4-12+9

=4+9-12

=13-12

=1

4 0
3 years ago
Over a four-week period, Gail earned the following commissions:
stellarik [79]

Answer:$257.5

Step-by-step explanation: add all the amounts then divide by 4

5 0
3 years ago
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