3 years ago

( PLEASE HELP ASAP ) Solve for the formula

Mathematics

1 answer:

mojhsa [17]3 years ago

8 0

Answer:

C .r=√A/π

Step-by-step explanation:

A=πr²

r²=A/π

Taking sq roots on both sides

r=√A/π

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Solve the problem . (x – 2) = –14(x – 8) 1) x=0 2)x=--5 1/3 3)x=-3 1/5 4)x=3 1/5

Mrrafil [7]

Answer:

x=38/5

Step-by-step explanation:

distribute

Add 2 to both sides of the equation

Simplify

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2 years ago

Andy completes the square for the equation x2 + 6x - 8 = 0. Which of the following equations reveals the vertex of the parabola?

Stolb23 [73]

If the equation $x^2+6x-8$ has undergo completing the square, the answer would be:
$x^2+6x-8
$
$x^2+6x+9-8-9$
**In this example, since 6x is the middle term, what comes to my mind is the polynomial (x+3) because 2ab results into 6x. [from the special products lesson $(a+b)^2=a^2+2ab+b^2$ ]
$(x+3)^2 -17 = 0$
So if the equation is equal to y, then this equation's
$y+17=(x+3)^2$
The vertex would be on the point (-3, -17)

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2 years ago

Read 2 more answers

How do i use long division? its hard for me...

Sergio039 [100]

Divide across and just bring down the numbers

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3 years ago

A flask containing 9.5 mL of a liquid weight 157.2 g with the liquid in the flask and 148.4 g when empty calculate the density o

agasfer [191]

Density = Mass/Volume
Mass = 152.7 gVolume = 9.5 mL
Since the mass gram correspond to the volume mL, then we can apply the formula:
Density = 152.7/9.5 = 16.074 g/mL (Or kg/L)

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3 years ago

6(1—a) =3(a—b)+1 4(b—2) =3a Consider the system of equations above. If (a, b) is the solution to the system, then what is the

Jet001 [13]

6-6a=3a-3b+1, 9a-3b=5
4b - 8 =3a, 3a-4b=-8

9a-3b=5
(3a-4b=-8 )*(-3 )

9a -3b= 5
-9a+12b=+24
adding both equations
9b=29, b=29/9

3a=4b-8=4*29/9 -8=(4*29-8*9)/9 = 44/9
a=44/27
a-b=44/27 - 29/9=44/27 - 29*3/27=-43/27
this is a correct answer, unfortunately they do not have this choice, probably they made mistake somewhere. I even check the solution of equations by substitution values of a and b into equations

5 0

3 years ago