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wel
3 years ago
12

Plz answer i suck at math :)

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
8 0

the answer is A) 4.08

MatroZZZ [7]3 years ago
7 0

Answer:

4.08

Step-by-step explanation:

26.08 +(-6)²*(3.4-8.9)÷9

parenthesis first

26.08+36*(-5.5)÷9

then multiplication

26.08-198÷9

division

26.08-22

addition or subtraction

4.08

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Which expression is equivalent to 5(a+4)?
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The area of a rectangle is 5454 in squaredin2. the ratio of the length to the width is 3 : 23:2. find the length and the width.
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8 0
3 years ago
Given that x + y = 13 and xy = 24, find the distance from the point (x, y) to the origin.
boyakko [2]

Answer: Distance from the point (x, y) to the origin is approximately 11 units.


Step-by-step explanation: Given equations x+y=13 and xy =24.

Solving first equation for y, we get

y = 13-x.

Substituting y=13-x in second equation, we get

x(13-x)= 24.

13x -x^2=24.

-x^2+13x =24.

-x^2+13x -24=0.

Dividing each term by -1, we get

x^2-13x+24=0.

Applying quadratic formula

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

\mathrm{For\:}\quad a=1,\:b=-13,\:c=24:\quad x=\frac{-\left(-13\right)\pm \sqrt{\left(-13\right)^2-4\cdot \:1\cdot \:24}}{2\cdot \:1}

x=\frac{-\left(-13\right)+\sqrt{\left(-13\right)^2-4\cdot \:1\cdot \:24}}{2\cdot \:1}:\quad \frac{13+\sqrt{73}}{2} =10.77

x=\frac{-\left(-13\right)-\sqrt{\left(-13\right)^2-4\cdot \:1\cdot \:24}}{2\cdot \:1}:\quad \frac{13-\sqrt{73}}{2}=2.23

Plugging x=10.77 in first equation

y= 13-10.77 = 2.23

and plugging x=2.23 in first equation, we get

y = 13-2.23 = 10.77.

Therefore, (x,y) are (10.77, 2.23) and (2.23, 10.77).

Now, we need to find the distance of (x,y) from origin (0,0).

Applying distance formula :

\mathrm{Compute\:the\:distance\:between\:}\left(x_1,\:y_1\right),\:\left(x_2,\:y_2\right):\quad \sqrt{\left(x_2-x_1\right)^2+\left(y_2-y_1\right)^2}

=\sqrt{\left(10.77-0\right)^2+\left(2.23-0\right)^2}

=10.9984\

<h3>≈ 11 units.</h3><h3>Therefore, distance from the point (x, y) to the origin is approximately 11 units.</h3>


3 0
3 years ago
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