3 years ago

Krutika was thinking of a number. Krutika halves the number and gets an answer of 86. Form an equation with

Mathematics

1 answer:

boyakko [2]3 years ago

8 0

Answer:

soy español y no hablo ingles

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NikAS [45]

The value of x is B.4 I think

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3 years ago

My friend needs help on this problem, plz help, thank you

Dafna1 [17]

Answer:

3 = 95, 4 = 85, if a and b are parallel

Step-by-step explanation:

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3 years ago

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. A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in terms of p?

vitfil [10]

Answer:

$r =\frac{D}{2}=\frac{18mm}{2}= 9mm$

The area is given by:

$A= \pi r^2$

And replacing we got:

$A=\pi (9mm)^2 =81\pi mm^2$

So then we can conclude that the area of the coin is $81\pi$ mm^2

Step-by-step explanation:

For this case we know that we have a coin with a diamter of $D =18mm$ , and by definition the radius is given by:

$r =\frac{D}{2}=\frac{18mm}{2}= 9mm$

The area is given by:

$A= \pi r^2$

And replacing we got:

$A=\pi (9mm)^2 =81\pi mm^2$

So then we can conclude that the area of the coin is $81\pi$ mm^2

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3 years ago

Find the slope of the line that contains the points (-9, 4) and (-7, -2).

Nataliya [291]

Answer:

-3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-2-4)/(-7-(-9))

m=-6/(-7+9)

m=-6/2

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3 years ago

What is the value of x in the equation 2 (x + 3) = 4 (x minus 1)? 1 2 3 5

creativ13 [48]

Answer:

Step-by-step explanation:

distribute: 2x+6 = 4x-4

subtract 2x from both sides: 6 = 2x-4

add 4 to both sides: 10 = 2x

divide both sides by 2: 5 = x

x = 5

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3 years ago