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Alexxandr [17]
4 years ago
8

How do you find the values of angles for a triangle when the only info you have is 3x+7 and angle a and b are the same angle a i

s 70 degrees

Mathematics
1 answer:
valentina_108 [34]4 years ago
8 0
54.Angle A=70°
Angle B=Angle A
Angle B=(3x+7)°
3x+7=70
3x=63
x=63/3
x=21

55.4x+3=45
4x=42
x=10.5
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The numbers 0 through 9 are used in code groups of four to identify an item of clothing. Code 1083 might identify a blue blouse,
choli [55]

Answer: 5040

Step-by-step explanation:

Given : Number of choices to make a four digit code ( 0 to 9)= 10

If repetition is not allowed , then we use Permutations to find the number of different code groups can be designed.

The number of permutations of n things , taking r at a time is given by :-

^nP_r=\dfrac{n!}{(n-r)!}

Then, the number of permutations of  10 numbers , taking 4 at a time is given by :-

^{10}P_{4}=\dfrac{10!}{(10-4)!}\\\\=\dfrac{10\times9\times8\times7\times6!}{6!}\\\\=\dfrac{10\times9\times8\times7}{1}\\\\=5040

Hence, the number of different code groups can be designed= 5040

5 0
4 years ago
Please help!! Thank you!
lana66690 [7]

Answer:

a= -2

b= 1

c= 4

d=0

Step-by-step explanation:

-5 times -2 is 10.

-5 times 1 is -5.

-5 times 4 is -20.

-5 times 0 is 0.

3 0
3 years ago
Ben simplified this expression. 1. 2. Analyze Ben’s work. Did he simplify the expression correctly? If not, what was his mistake
jonny [76]

Answer:

No, he needed to apply the exponent to all factors in the product in the second step.

Step-by-step explanation:

6 0
4 years ago
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Help me with 4 and 5 please
olganol [36]
The 4 is H and for 5, i don’t have much time rn so ask somebody else!
5 0
3 years ago
If you divide my number by 12 and then add 2 you get 16. find my number
iren2701 [21]
X/12 + 2 = 16
x/12 = 16 - 2
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4 years ago
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