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3 years ago

What is 5 divided by 3/7

Mathematics

1 answer:

DENIUS [597]3 years ago

4 0

it would be 35/3 or 11 2/3

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Which is the function represented by the table?

Paha777 [63]

The function represented by the table is linear function
and pass with (0,0)
so it is in the form
             f(x) = m x
where m is the slope

m = [ f(x₂) - f (x₁) ] / [ x₂ -x₁]
    (4-0)/(1-0) =4
so
   f(x) = 4 x

4 0

3 years ago

Which of the following is an extraneous solution of the square root of -3x-2=x+2

yarga [219]

Answer:

x=-6 is an extraneous solution

Step-by-step explanation:

we have

$\sqrt{-3x-2} =x+2$

squared both sides

$-3x-2=(x+2)^2$

$-3x-2=x^2+4x+4$

$x^2+7x+6=0$

solve the quadratic equation by graphing

The solution is x=-6 and x=-1

see the attached figure

<u><em>Verify each solution</em></u>

substitute the value of x in the original expression

For x=-6

$\sqrt{-3(-6)-2} =-6+2$

$\sqrt{16} =-4$

$4=-4$ ----> is not true

Is an extraneous solution

For x=-1

$\sqrt{-3(-1)-2} =-1+2$

$\sqrt{1} =1$

$1=1$ ----> is true

Is the solution

4 0

3 years ago

Please help

s2008m [1.1K]

Answer:

Step-by-step explanation:

1. 12

2. 12/3.5 = 3.43

3. 12/15 = 0.8

4. 3.43/0.8

5. 315/x

6. 315/x = 0.8/3.43

7. (315)(3.43) = 0.8x divide both sides by 0.8, so x = 1,350.5625 feet.

5 0

3 years ago

What is the cube root of 8x^(27)

Scrat [10]

The answer is 2x^9.

8 0

3 years ago

Read 2 more answers

If f(x)=-8x+4, then f^-1=

natima [27]

Answer:

$f^{-1}$ (x) = $\frac{4-x}{8}$

Step-by-step explanation:

let y = - 8x + 4

rearrange making x the subject

add 8x to both sides

8x + y = 4 ( subtract y from both sides )

8x = 4 - y ( divide both sides by 8 )

x = $\frac{4-y}{8}$

change y back into terms of x, then

$f^{-1}$ (x) = $\frac{4-x}{8}$

7 0

3 years ago