Which equation represents "the sum of eight times a number and seven is twice the number"?

Answers

Answer 1

Answer: *8x + 7 = 2x ---> equation
8x - 2x = -7
6x = -7
x = -7/6

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Subtract. -21 - (-13)

A=v^2/r Solve the formula for r

Answers

Answer:

$\Large \boxed{r =(v^2 )/(a)}$

Step-by-step explanation:

$\displaystyle a=(v^2 )/(r)$

We need to rearrange and solve the formula for $r$ .

Multiply both sides of the equation by $r$ .

$\displaystyle a * r=(v^2 )/(r) * r$

Simplify the equation.

$ar=v^2$

Divide both sides of the equation by $a$ .

$\displaystyle (ar)/(a) =(v^2 )/(a)$

Simplify the equation.

$\displaystyle r =(v^2 )/(a)$

What formula is you using r or what do you have to show work ?

Which sequence is geometric and has 1/4 as its fifth term and 1/2 as the common ratio?…, 1, 1/2, 1/4, 1/8, …

…, 1/4, 1/2, 1, 2,…

…, 1/72, 1/36,1/18, 1/9, …

…, 8, 4, 2, 1, …

Answers

the answer is 0.5. Because you have to half 1

What is the completely factored form of the expression 16x2 + 8x + 32?

Answers

8 is a common factor for all coeficients so we factor it out first: 8(2x^2 + x + 4). Now we have to check can we factor the quadratic equasion in the brackets to linear factors. To do that we need to check is the discriminant D=b^2 - 4ac > 0 where a=2, b=1 and c=4. When we insert our numbers, we get: D= -31. We see that D < 0 so 8(2x^2 + x + 4) is the completely factored form.

Answer:

8(2x^2 + x + 4)

Step-by-step explanation:

edge2020

The ____ is a metric unit for mass.A : Meter

B : Gram

C : Liter