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3 years ago

10

Rob and his two friends were digging holes to plant some new trees. The holes need to be at least 3 feet deep. So far robs hole

is 14/5, sams is 2.6 feet and toms is 2 1/8 feet. Who is closest to being finished

1 answer:

Greeley [361]3 years ago

7 0

Rewrite all the numbers as decimals:

14/5 = 2.8

2.6 is already a decimal

2 1/8 = 2.125

2.8 is the largest number so rob is closest to being finished.

You might be interested in

3. What are the roots of the polynomial y = x³ - 8?

zzz [600]

Step-by-step explanation:

x^3 is a perfect cube, 8 is a perfect cube, so we use difference of cubes.

${a}^{3} - {b}^{3} = (a - b)( {a}^{2} + ab + {b}^{2} )$

Cube root of x^3 is x.

Cube root of 8 is 2

So

a=x

b= 2.

$(x - 2)( {x}^{2} - 2x + 4)$

Set these equations equal to zero

$x - 2 = 0$

$x = 2$

${x}^{2} - 2x + 4 = 0$

If we do the discriminant, we get a negative answer so we would have two imaginary solutions,

Thus the only real root is 2.

If you want imaginary solutions, apply the quadratic formula.

$1 + i \sqrt{ 3 }$

and

$1 - i \sqrt{3}$

4 0

1 year ago

What is the value of y in the equation 2(3y - 4) = 10 ?<br><br> Question 1 options:<br><br> 1

Andrews [41]

Y is y=3 so the awnser is y=3

3 0

3 years ago

Read 2 more answers

Two students, Carlos and Sophie, factored the trinomial -4x2 − 10x + 6. Sophie factored it as -2(2x − 1)(x + 3) and Carlos facto

damaskus [11]

Sophie has factored the term completely while Carlos has not factored the term completely.

Step-by-step explanation:

We need to factor the trinomial:

$-4x^2-10x + 6$

Factoring:

$-4x^2-10x + 6\\Taking\,\,-2\,\,common:\\-2(2x^2+5x-3)\\Now\,\,factoring:\\-2(2x^2+6x-x-3)\\-2(2x(x+3)-1(x+3))\\-2(2x-1)(x+3)$

So, the factored form of $-4x^2-10x + 6$ is $-2(2x-1)(x+3)$

So, Sophie has factored the term completely. The terms are factored when we cannot further simplify it. Since Carlos factored (x+3)(-4x+2) 2 can be taken common from the term (-4x+2) so, it is not factored completely.

Keywords: Factoring the terms

Learn more about Factoring the terms at:

#learnwithBrainly

7 0

2 years ago

How much icing is needed over the donut shown below (Diameter of 4in and 1.5in wide)

Dafna11 [192]

You use the formula C=2(3.14)r r is the radius and in this situation 2 so the answer will be 12.56

5 0

2 years ago

Evaluate 2(s+t)^3-6when s = 3 and t = 2

Komok [63]

Answer:

994

Step-by-step explanation:

2(s+t)= 10

10^3= 1.000

1.000-6= 994

3 0

2 years ago