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3 years ago

Solve: x ÷ 0.6 = 8.9

Mathematics

1 answer:

alisha [4.7K]3 years ago

7 0

Answer:

5.34

Step-by-step explanation:

x = 8.9 X 0.6

x = 5.34

Your welcome :)

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Simplify (4x2 − 8x + 16)/4

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4x-4this is the awnser

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4 years ago

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Evaluate the expression when a = 5 and b = 7 b +4a

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Answer:

ans=27

Step-by-step explanation:

A=5,B=7

equation is B+4a=(b value is 7),(4a, 4×5=20)

b+4a=7+20=27

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3 years ago

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Which one don’t lie

Assoli18 [71]

Answer:

None of the above

Step-by-step explanation:

A proportional relationship is where one ratio is the same as another ratio. For example, the ratio 1:2 is the same as 2:4. If you go ahead and divide both of these ratios, you'll get the same relationship 1:2.

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4 years ago

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Complete the description of the slope of the line that joins the points

Grace [21]

Answer:

The slope of the line that joins the points is negative.

i.e m = -6/5

Step-by-step explanation:

Taking two points from the graph to determine the slope

(-3, 4)

(2, -2)

Finding the slope between (-3, 4),(2, -2)

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$ '

$\left(x_1,\:y_1\right)=\left(-3,\:4\right),\:\left(x_2,\:y_2\right)=\left(2,\:-2\right)$

$m=\frac{-2-4}{2-\left(-3\right)}$

$m=-\frac{6}{5}$

Therefore, the slope of the line that joins the points is negative.

i.e m = -6/5

7 0

3 years ago

5. Find the equation of a circle whose center is at (5, -8) and radius 8.

Brums [2.3K]

Answer:

$x^{2} + y^{2} -10x -16y + 39$

Step-by-step explanation:-

The equation used to find the equation of circle is :-

$(x-a)^{2} + (y-b)^{2} = radius^{2}$

'a' means the x coordinate of the circle, 'b' means y coordinate of the circle.

In the question, it's given that the coordinates of the circle are (5, -8) and radius is 8cm.

So, 'a' will be 5 and 'b' will be -8

So,

$(x-5)^{2} + (y--8)^{2} = 8^{2}$

$(x-5)^{2} + (y+8)^{2} = 64$

$x^{2} - 10x + 25 + y^{2} - 16y + 64$

$x^{2} + y^{2} -10x -16y + 64 - 25$

= $x^{2} + y^{2} -10x -16y + 39$

4 0

3 years ago