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lukranit [14]
4 years ago
14

the book for English class 100 students were asked whether or not they enjoyed it 9/25 of the class did not like the book how ma

ny students like the book
Mathematics
1 answer:
scZoUnD [109]4 years ago
8 0
100/25= 4
9 out of 25 didnt like it
9 times 4= 36 didnt like it
100-36=64 like the book
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If angle A =90 degree , b=1 cm and a =2 cm then solve the following right angled triangle ABC ​
Kruka [31]

Answer:

  • Angle A = 90 degrees, side a = 2.
  • Angle B = 30 degrees, side b = 1.
  • Angle C = 60 degrees, side c = \sqrt{3}.

Side c:

  • If angle A is 90 degrees, side a is the hypotenuse.
  • c^{2} + b^{2} = a^{2} <--- <em>this is NOT the correct way to write the Pythagorean theorem. I changed it to fit the side lengths. Normally, it is </em>a^{2} + b^{2} = c^{2}<em>, where c is the hypotenuse. Since a is the hypotenuse, I switched the variables.</em>
  • c^{2} + (1)^{2} = (2)^{2}
  • c^{2} + 1 = 4
  • c^{2} = 3
  • c = \sqrt{3}

Finding the angles:

  • <em>In a 30-60-90 right triangle, the...</em>
  • <em>Shortest leg = x</em>
  • <em>Longest leg = </em>x\sqrt{3}<em> </em>
  • <em>Hypotenuse = 2x </em>
  • In this case, the shortest leg is 1, the longer leg is \sqrt{3} (or 1*\sqrt{3}), and the hypotenuse is 2 (or 2*1).
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4 0
3 years ago
Samantha buys a shirt that costs $28.50. She uses a
Gre4nikov [31]
Samantha buys a shirt that costs $28.50. She uses a
30% coupon. What will Samantha pay for the shirt?
ANSWER IS 8.55
7 0
3 years ago
Given isosceles AHIJ where HIIT, MZH = (3x + 10)", and mZ1 = (6x – 20)", find the measures of angles H, I and J.
sergejj [24]

Answer:

110 degrees I think

Step-by-step explanation:

6 0
3 years ago
△XYZ is mapped to △X'Y'Z' using the rules (x, y)→(x+5, y−3) followed by (x, y)→(−x, −y) .
Yuri [45]

Given that △XYZ is mapped to △X'Y'Z' using the rules (x, y)→(x+5, y−3) followed by (x, y)→(−x, −y) .

We know that (x,y) => (x+h,y+k) type operation represents translation so rule (x, y)→(x+5, y−3)  will cause translation.

We know that (x,y) => (-x,-y) type operation represents rotation about origin so rule (x, y)→(−x, −y) will cause rotation.

So combining both results and comparing with given choices. we find that only 1st choice "△XYZ is congruent to △X'Y'Z' because the rules represent a translation followed by a rotation, which is a sequence of rigid motions."

is correct.

5 0
3 years ago
What is the first step to isolate the variable term on one side of the equation?
Vilka [71]

Answer:

the answer to the whole equation is x=30.

Step-by-step explanation:

do 2/3(2) and -1/2(3)

4/6x and -3/6x

add the -3/6x to the other side

7/6x or 1 and 1/6x=5

times both by 6

x=30

5 0
3 years ago
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