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3 years ago

3(5x - 2) - 6x = 3(3x + 2)

Mathematics

1 answer:

kap26 [50]3 years ago

8 0

9x-6=9x+6
9x-9x=6+6
x=12

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Fill the missing boxes and how do you know? Triangle Mid segment Theorem

Morgarella [4.7K]

9514 1404 393

Answer:

1
2√2
4√2
2√2
4√2

Step-by-step explanation:

The differences of coordinates are ...

E-D = (-2, 0) -(-4, -2) = (-2+4, 0+2) = (2, 2)

The slope is the ratio of the y-difference to the x-difference:

slope of DE = ∆y/∆x = 2/2 = 1

The length is the root of the sum of the squares of those differences:

length of DE = √(2² +2²) = √8 = 2√2

Similarly, the slope of CB is found from ...

B -C = (1, -2) -(-3, -6) = (1+3, -2+6) = (4, 4)

slope = 4/4 = 1

And the length is ...

length of CB = √(4² +4²) = 4√2

Because the slopes of DE and CB are both 1, DE ║ CB.

DE = 2√2 and CB = 4√2.

Because 2√2 = (1/2)·4√2, DE = 1/2·CB.

7 0

2 years ago

The difference of the squares of two consecutive even integers is 68. What are these numbers?

valentinak56 [21]

Answer:

x = 5

Step-by-step explanation:

(2x+2)² - (2x)² = 44

4x^2 + 8x + 4 - 4x^2 = 44

8x + 4 = 44

8x = 44 - 4

8x = 40

x = 40/8

x = 5

4 0

3 years ago

Read 2 more answers

-1/4+3/4 please help I feel dumb for not knowing but I’m trying

butalik [34]

Answer:

the answer is $\frac{1}{2}$ or $0.5$

Step-by-step explanation:

Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.

5 0

2 years ago

Please help, thanks.

tangare [24]

As the x value increases by 1, the y value increases by 4. If the x value skips from 4 to 25, it increaes by 21. The y value can be found by multiplying 21 * 4 and adding the previous y value, 7. 21 * 4 is 84 and 84 + 7 = B) 91

8 0

3 years ago

Which mathematical concept did you use to find the number of gumballs that fit INSIDE the package?

Vlada [557]

The answer is Volume

5 0

2 years ago