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emmainna [20.7K]
3 years ago
12

I don’t understand...

Mathematics
2 answers:
Makovka662 [10]3 years ago
6 0

Hi there,

I have done 3-6. I think the first 2 are correct.

Sonbull [250]3 years ago
6 0
I have trouble with this tooooo
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-4x = -28<br> I need an answer...
Strike441 [17]

Answer:

x = 7

Step-by-step explanation:

-4x/-4 = -28/-4

x = 7

7 0
2 years ago
Note angles not necessarily drawn to scale
kondaur [170]

Answer:

<h2>x = 90° - 30° = 60°</h2>

Step-by-step explanation:

Angles CGE and 30° are vertical angles.

Thus, Angle CGE is thus 30°.

Angle CGE and Angle x are complementary, so x = 90° - 30° = 60°

7 0
3 years ago
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2 Which expression is equivalent to 64-*?
Rasek [7]

Answer:

2

Step-by-step explanation:

(8-x)(8+x)

8×8=64

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3 0
3 years ago
How many 7 digit phone numbers are there assuming the first digit can't be a 0 or a 1?
Anettt [7]
The first digit can be any one of the numbers 2-9 That a total of 8 numbers.

The next 6 digits can be any permutation of 6  from the numbers  0 to 9.
(10 numbers)

nPr  =  n! / r!

so here we have  10P6  = 10! / 6!  =  10*9*8*7  =  5040

So final answer  is 8 * 5040 = 40,320
7 0
3 years ago
The solution of (10 x/6)(10 x/8)=10 to the power of 10​
PolarNik [594]

Answer:

80,60

Step-by-step explanation:

6 0
3 years ago
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