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nignag [31]
3 years ago
13

Expresion 2 5+4X2+6-2X2-1 Insert parentheses in Expression 2 so that it has a value of 19. Then show why your expression has a v

alue of 19 5+4X2+6-2X2-1
Mathematics
1 answer:
solong [7]3 years ago
3 0
(5+4+6-2)×2×2-1
(9-4)×2×2-1
5×2×2--1
10×2-1
20-1
19
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The image of the diagram is missing, so i have attached it.

Answer:

a = 30°

Step-by-step explanation:

From the diagram attached, we can see that the 2 angles a and 5a are interior supplementary angles.

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Thus;

5a + a = 180

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4 0
3 years ago
1,3,1,12,1,48,1 use the pattern to find next number
charle [14.2K]
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The base of a triangle is 9/4 times of its height. If the area of triangle is 144 cm2. Find the height and the base.
Mazyrski [523]

Step-by-step explanation:

Given that the base of triangle is 9/4 times of its height . And area is 144 cm² . Let the height be h , then its base be 9h/4 .

<u>•</u><u> </u><u>Acco</u><u>rding</u><u> </u><u>to</u><u> </u><u>Question</u><u> </u><u>:</u><u>-</u><u> </u>

\tt\to Area_{(\triangle)}=\dfrac{base\times height}{2}\\\\\tt\to 144cm^2 = \dfrac{9h\times h}{4\times 2 } \\\\\tt\to h^2 =\dfrac{12\times 12 \times 2 \times 2 }{3\times 3 }\\\\\tt\to h =\sqrt{\dfrac{12\times 12 \times 2 \times 2 }{3\times 3 }}\\\\\tt\to h =\dfrac{(12)(2)}{3} \\\\\tt\to \boxed{\orange{\tt h = 8 cm }}

Therefore ,

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5 0
2 years ago
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One gram is about the weight of a paper clip, so it makes more sense for a cell phone to weigh 113 paper clips. 

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7 0
3 years ago
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liq [111]

Answer:

The answer is -15x-10

Step-by-step explanation:

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2 years ago
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