2 years ago

Let a,b,c and d be constants. Determine which of the lines, if any, are parallel or perpendicular.

Mathematics

1 answer:

telo118 [61]2 years ago

3 0

Isn’t that suppose to be with graphs?

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Work out the percentage change to 2 decimal places when a price of £198 is increased to £209.99.

bija089 [108]

Answer:

The percentage change = 6.05%

Step-by-step explanation:

New value = £209.99

Old value = £198

Percentage change = [New Value - Old Value] / [Old Value] × 100

= [209.99 - 198] / [198] × 100

= [11.99] / [ 198] × 100

= 0.06 × 100

= 6.05%

Therefore, the percentage change = 6.05%

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2 years ago

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Mamont248 [21]

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2 years ago

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Identify the angle relationship, write an equation and Solve for x.

irakobra [83]

Answer:

$2x-6+x+x=180$

$4x-6=180$

$4x=180+6$

$4x=186$

$x=\frac{186}{4}=46,5°$

Step-by-step explanation: the other angle is equal to his simmetrical, cause the triangle is isosceles, so is value is x. The sum of the angle in a triangle must be 180°

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2 years ago

An isosceles trapezoid has base angles 45 and bases of lengths 9 and 15 the area pf the trapezoid is

Nadusha1986 [10]

Tangent 45 = height / 3
height = 3 * tan (45)
height = 3 * 1
height = 3

Trapezoid area = ((sum of the bases) ÷ 2) • height

Trapezoid area = (9 + 15) /2 * height

Trapezoid area = 12 * 3

Trapezoid area = 36

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2 years ago

Emily thought of a counting number, and then she added the next counting number to it. She got the sum of 57. What was Emily’s n

Dovator [93]

Let this number be x. The next number is (x+1). And their sum is 57. Then, we have to solve this equation x+x+1=57
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Emily's number was 28

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3 years ago

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