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lawyer [7]
2 years ago
6

Use the associative property to simplify the expression.

Mathematics
2 answers:
RideAnS [48]2 years ago
6 0
I think D lol….not a fan of fans
BaLLatris [955]2 years ago
3 0

Answer:

the answer is 143 cus u add throw

through

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A rectangle has a perimeter of 52 cm and an area of 144 square cm. Find its length and width if they are in whole numbers.
Bingel [31]
8 and 18:
8+8+18+18= 52
8*18 = 144

Tada!
6 0
3 years ago
Due in 20 mins help pls
Lubov Fominskaja [6]

Step-by-step explanation:

{13}^{2}  =  {6.5}^{2}  +  {x}^{2}  \\  {x}^{2}  = 126.75 \\ x = 11.2

7 0
3 years ago
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A picture frame can hold a photograph that is 16 inches long and 12 inches wide.
Mila [183]

Answer:

192 inches because 16×12=192

8 0
3 years ago
WILL GIVE BRAINLIEST if you explain your answer!!
mr Goodwill [35]

Answer:

x=-3

Step-by-step explanation:

You need to delete the root by ^2. First you need to leave it alone

\sqrt{x+7}-x=5\\\sqrt{x+7}=5-x\\(\sqrt{x+7} )^{2}=(5-x)^{2}    \\x+7=25+10x+x^2\\x-10x=25+x^2-7\\-9x=18+x^2\\-x^2-9x-18=0\\-1(x^2+9x+18)=0\\x^2+9x+18=\frac{0}{-1}\\x^2+9x+18=0\\(x+6)(x+3)=0\\x+6=0 ===> x=-6\\x+3=0 ===> x=-3\\Checking\\\sqrt{-6+7}-(-6)=5===>\sqrt{1}+6=7\neq5  \\\\\sqrt{-3+7}-(-3)=5===>\sqrt{4}+3=5=5\\\\So \\x=-3

7 0
3 years ago
Find all solutions for a triangle with a = 6,b = 8, and A = 150°
levacccp [35]

Answer:

6/sin 150 = 8 / sin B

Step-by-step explanation:

6/sin 150 = 8 / sin B

sin 150 = 1/2 so you cross multiply to get 6 sin B = (1/2) • 8

6 sin B = 4

sin B = 4/6

B = inverse sin (4/6) = 42º or 138º

But both of those add to 150 to go over 180 so there are no solutions.

Back in geometry, you had that the larger angle of a triangle is opposite the longer side, right?  You can see that 150º can't be opposite 6 because then the angle opposite 8 would have to be larger than 150º which is impossible for a triangle.

5 0
3 years ago
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