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kicyunya [14]
3 years ago
7

Solving Systems by Substitution

Mathematics
1 answer:
kenny6666 [7]3 years ago
7 0

Answer:

hope it will help you ....

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Whats the answer to 15 3/4 ÷ 1 3/4 step by step
azamat

Answer:

9

Step-by-step explanation:

(15×4+3)/4 ÷(4×1+3)/4= 63/4 ÷ 7/4= 9

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8 0
3 years ago
In a figure, OB is the radius of a big semicircle and XB is the radius of the small semicircle. Given that OX = 14 cm, Calculate
oee [108]

Answer:

perimeter of the shaded region = 88 +44+28 =160 cm

Step-by-step explanation:

perimeter of shaded region = length AO + arc OB + arc AB

length AO = radius of bigger circle

radius of bigger circle = OX + OB = 2×radius of smaller circle = 2×14 cm = 28 cm

therefore AO = 28 cm

length of arc oB= half of circumference of smaller circle = \pi×14 = 44 cm

length of arc ab = half of circumference of bigger circle  = \pi×28 =\frac{22}{7}×28= 88

therefore perimeter of the shaded region = 88 +44+28 =160 cm

area of the shaded region = half of area of bigger circle - half of area of smaller circle

                                           =\frac{1}{2} \pi 28^{2} -\frac{1}{2} \pi 14^{2}

                                           =\frac{\pi }{2} (28^{2} -14^{2} )

  solving we gen area of shaded region = 924

7 0
3 years ago
What is [70+(-30)]+[2+(-9)]+[0.3+(-0.1)]
vovangra [49]

\huge\mathfrak{=\;0}

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3 years ago
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The angles are complementary.
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