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3 years ago

Need help with this

Mathematics

1 answer:

Ivan3 years ago

7 0

Its answer A. if you solve 20(10) it gets u 200 then solve 8(4) it would get u 32.

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Decrease £13.20 by 15% <br><br> With an explanation (working out) plzzzz

algol [13]

Answer:

£11.22

Step-by-step explanation:

100% = £13.20

50% = £6.60

10% = £1.32

5% = £0.66

so you would add 10% and 5% together which gives you 15% and 15% is £1.98

and then you could to £13.20 - £1.98 which equals to £11.22

6 0

3 years ago

What is 62% written as a decimal?

Anon25 [30]

Answer:

0.62

Step-by-step explanation:

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3 years ago

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Item 13 Find the distance between the points C(−6, 5) and D(−3, 1). The distance between the two points is

Len [333]

Answer:

5 units

Step-by-step explanation:

Given:-

- The two points C and D are given:

C ( -6 , 5 ) & D ( -3 , 1 )

Find:-

The distance between the two points

Solution:-

- The distance (d) between two arbitrary points ( x1 , y1 ) & ( x2, y2 ) in a cartesian coordinate system is given by the following formula:

$d = \sqrt{( x_1 - x_2)^2 + ( y_1 - y_2 )^2}$

Where,

C = ( -6 , 5 ) = ( x1 , y1 )

D = ( -3 , 1 ) = ( x2 , y2 )

- Then we can calculate the distance d between the two given points:

$d = \sqrt{( -6 -(-3) )^2 + ( 5 - 1 )^2}\\\\d = \sqrt{( -3 )^2 + ( 4 )^2}\\\\d = \sqrt{9 + 16}\\\\d = \sqrt{25}\\\\d = 5 units$

- The distance between the given points C and D is d = 5 units

4 0

3 years ago

Use trigonometry to solve for x. Round to the nearest tenth.

mel-nik [20]

Answer

Step-by-step explanation:

You need to use cosine because the side length needed is adjacent and you have the hypotenuse.Set up a proportion of "cos23 = x/13" and solve by cross multiplying. Then just round.

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3 years ago

Put the following equation of a line into slope-intercept form, simplifying all fractions.

kicyunya [14]

Answer:

3x - y = -3

Step-by-step explanation:

divide everything by 4, the greatest common factor. That's all you need to do.

4 0

3 years ago

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