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3 years ago

Please help me im not good at maths :(((

Mathematics

1 answer:

lapo4ka [179]3 years ago

3 0

Answer:

A) 11% B) 60

Step-by-step explanation:

(for A) if you add all the "Frequency" it adds up to 100, so we don't need to do any maths for that because we already have our 100% right there. So less maths to do because if that right there is already the whole, then the frequency of it is the % out of 100%

(for B) If you take your calculator and do 12 x 500, you get 6,000, press the "%" button and it gives you the percent of what that probability of getting 6 after rolling 500 times with its sent frequency

(took me a minute to learn this this for you... by that i mean i messed around with my calculator for like 3 minutes) Hope this is right.

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4 years ago

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natta225 [31]

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3 years ago

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3 years ago

Read 2 more answers

XY and BD are parallel lines.

tia_tia [17]

Answer:

a) Angle XBC = 55° because corresponding angles are equal.

b) Angle BXC = 70°

Step-by-step explanation:

The image of the complete question is attached to this solution.

a) Angle XBC = 55° because....

Line XY and BD are parallel.

A straight line, AB, crosses the two parallel lines, thereby making angles AXY and XBC corresponding angles because they occupy the same relative position at points where the straight line, AB, intersects the two lines XY and BD.

Since the two lines, XY and BD, are parallel, the corresponding angles related to them are said to be equal.

b) Angle BXC

Since we have found and confirmed that angle XBC is truly 55°.

Triangle BXC is an isosceles triangle, with sides BX and XC equal, the base angles XBC and BCX are both equal.

Angle XBC = Angle BCX = 55° (base angles of an isosceles triangle are equal)

Then, the sum of angles in a triangle = 180°

Hence,

(Angle XBC) + (Angle BCX) + (Angle BXC) = 180° (sum of angles in a triangle)

55° + 55° + Angle BXC = 180°

Angle BXC = 180° - 110° = 70°

Hope this Helps!!!

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4 years ago