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Alex73 [517]
3 years ago
15

The figure has ____

Mathematics
2 answers:
Vika [28.1K]3 years ago
7 0
180* I’m pretty sure i remeber doing this
Ber [7]3 years ago
3 0
The answer is 150 degrees
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Pls help <br> its was on khan academy<br> i will mark u brainiest!!!
Phantasy [73]

Answer:

14 units

Step-by-step explanation:

Solution:-

A(5,1)B(7,1)

\sqrt{(x_{1}-x_{2} ) ^{2}(y_{2} -y_{1}x^{2}    }

AB=\sqrt{(7-5)^{2} +(1-1)^{2} }

= \sqrt{2^{2} } =2

BC=\sqrt{7-7^{2}+(6-1)^{2}  }

=\sqrt{5^{2} } =5

perimeter=2(AB)+2(BC)

= 2(2)+2(5)\\

= 4+10= 14

-----------

hope it helps...

have a great day!!

6 0
3 years ago
Justin recently drove to visit his parents who live 96 miles away. On his way there his average speed was 20 miles per hour fast
never [62]

Answer:

Justin's average speed to his parents' house: x= 40mph

Justin's average speed from his parents' house: x+20=60 mph

Step-by-step explanation:

Let the average speed be x +20  

Then average speed from his parents' x

And the distance is S=96

Then we know :

\displaystyle \frac{S}{x+20} +\frac{S}{x} =4 \\\\\\ \frac{96}{x+20} +\frac{96}{x}=4   \ |\div 4 \\\\\\ 24\bigg(\frac{1}{x+20} +\frac{1}{x} \bigg) =1 \\\\\\ 24\cdot \frac{x+x+20}{(x+20)x}  =1  \  |\cdot (x+20)x  \ \  \\\\\\48x+480=x^2+20x \\\\ x^2-28x-480=0  \\\\  \rm  D=28^2+4\cdot 480=2704 =52^2 \\\\ \boxed{x_1=\frac{28+52}{2} =40} \\\\x_2=\frac{28-52}{2} =-12 \ \  \varnothing

Justin's average speed to his parents' house:  x= 40mph

Justin's average speed from his parents' house:  x+20=60 mph

4 0
3 years ago
Evaluate -4n^2+ 11 when n= 3
jok3333 [9.3K]

Answer:

Step-by-step explanation:

999

8 0
3 years ago
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One side of a square has a value of 3x+2, find the perimeter of the square
alexira [117]

Answer:

P = 12x +8

Step-by-step explanation:

The perimeter of a square is given by

P = 4s  where s is the side length

P = 4(3x+2)

Distribute

P = 12x +8

6 0
4 years ago
Read 2 more answers
Brand a has a box of 42 forks for $2.37 brand b has a box of 72 forks for $3.57 find the unit price for each brand then state wh
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Brand a: per fork is 0.06 cents.

Brand b: per fork is 0.05

Choose brand B!
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4 years ago
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