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3 years ago

Simplify 39/160 help me

Mathematics

2 answers:

Elanso [62]3 years ago

7 0

If you’re looking for the decimal form, then it’s 0.243

patriot [66]3 years ago

4 0

Answer:

13/80

Step-by-step explanation:

39/160=13/80

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A semicircular flower bed has a diameter of 3 metres.

Kaylis [27]

Answer:

3.5 $m^2$

Step-by-step explanation:

If the shape is half of a circle, you will be using this formula: A = $\frac{1}{2}$ π $r^2$

Your radius is half of the diameter. r = d/2 = 3/2 = 1.5

Substitute r = 1.5 into the formula.

A = $\frac{1}{2}$ π $1.5^2$

A = $\frac{1}{2}$ (3.14) $1.5^2$

Use your calculator to find the answer and round your answer.

3.5

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4 years ago

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Given the points P(2,-1) and Q(-9,-6), what are the coordinates of the point on directed line segment PQ that partitions PQ in t

gayaneshka [121]

ANSWER

$( - \frac{23}{5} , - 4)$

EXPLANATION

Given the points P(2,-1) and Q(-9,-6),the coordinates of the point that partition the directed line segment PQ in the ratio 3:2 is given by

$x = \frac{ mx_2+nx_1}{m + n}$

$y= \frac{ my_2+ny_1}{m + n}$

Where m=3 and n=2

$x = \frac{ 3 ( - 9)+2(2)}{3+ 2}$

$x = \frac{ - 23}{5}$

$y= \frac{ 3( - 6)+2( - 1)}{3 + 2}$

$y= \frac{ - 20}{5} = - 4$

The point is

$( - \frac{23}{5} , - 4)$

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3 years ago

What is the geometric mean of 3 and 18

anyanavicka [17]

Answer:

$3 \sqrt{6}$

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3 years ago

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A contractor bought 10.8 ft squared of sheet metal. has used 2.1 ft squared so far and has $139.20 worth of sheet metal remaini

Anuta_ua [19.1K]

Answer:

7.1

Step-by-step explanation:

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4x-3y=2<br> 3x=5y=16<br> solve using substitution method

vodomira [7]

$\left\{\begin{array}{ccc}4x-3y=2&|\text{add 3y to both sides}\\3x+5y=16\end{array}\right\\\left\{\begin{array}{ccc}4x=3y+2&|\text{divide both sides by 4}\\3x+5y=16\end{array}\right\\\left\{\begin{array}{ccc}x=0.75y+0.5&(*)\\3x+5y=16\end{array}\right\\\\\text{substitute}\ (*)\ \text{to the second equation}\\\\3(0.75y+0.5)+5y=16\qquad\text{use distributive property}\\\\(3)(0.75x)+(3)(0.5)+5y=16\\\\2.25y+1.5+5y=16\qquad\text{subtract 1.5 from both sides}\\\\7.25y=14.5\qquad\text{divide both sides by 7.25}$

$\boxed{y=2}\\\\\text{substitute the value of y to}\ (*):\\\\x=0.75(2)+0.5\\\\x=1.5+0.5\\\\\boxed{x=2}\\\\Answer:\ x=2\ and\ y=2\to(2,\ 2)$

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3 years ago