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NemiM [27]
3 years ago
6

What is another way to write x2.x4?

Mathematics
1 answer:
puteri [66]3 years ago
3 0

Answer:

If x2.x4 and x2= 2x, x4=4x, while . means multiplication. therefore it can be written as 2x × 4x

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The sum of three numbers is 72
LekaFEV [45]

Answer: <u><em>The first number is 8</em></u>

Step-by-step explanation: Let the three No. s be x, y and z respectively

given = x+ y+ z= 72

y=7x

z=7x-18

∴As we know x+ y+ z=72

i.e. x+7x+7x-18=72

15x=72+18=90

15x=90

x=90/15

∴x=8

∴y=7x

7×8=56

∴z=7x-18

56-18=38

∴<u><em>The first no. is x=8</em></u>

<u><em>The second no. is y=7x = 56</em></u>

<u><em>The third no. is z=7x-18 = 38</em></u>

6 0
3 years ago
Read 2 more answers
What are 3 math equations for x=-3
harina [27]

Multiply both sides by any number you want. I'll pick 2

x = -3 turns into 2x = -6 after doing so

--------------------------

Add anything you want to both sides. I'll pick 7

x = -3 turns into x+7 = 4 after doing so

---------------------------

you can do a combination of both multiplication and addition, as long as you do the same thing to both sides. First I'll do multiplication. I'm going to multiply both sides by 2 first

x = -3 turns into 2x = -6

then I'm going to add 7 to both sides

2x = -6 turns into 2x+7 = 1

If you were to solve 2x+7 = -1, then you'd get to x = -3 again

As a check, replace x with -3 and we have...

2x+7 = 1

2(-3)+7 = 1

-6+7 = 1

1 = 1

we get a true statement, which helps confirm we have the right equation.

5 0
3 years ago
Read 2 more answers
What is the surface area of sphere with radius 13 ft
dmitriy555 [2]
This would be 4 * pi * r^2  =  2123.72 ft^2 to nearest hundredth
3 0
3 years ago
Solve: 2x - 3 = 4x + 5
Katen [24]
The answer is X=-4 , mark me brainless
6 0
3 years ago
Write the combined inequality that matches the solution set shown in each graph? (graphes above)​
Lisa [10]

Answer:

Part 5) x< -1  or  x\geq 4

Part 6) x > 0  and  x < 5

Step-by-step explanation:

Part 5)

The solution of the inequality is the interval

(-∞, -1) ∪ [4,∞)

so

x< -1  or  x\geq 4

Part 6)

The solution of the inequality is the interval

(0,5)

so

0< x < 5

x > 0  and x < 5

3 0
3 years ago
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