The zeros is another name for solutions.

x^2 - 5x - 1 = 0

You must use the quadratic formula to find x.

In the formula, a = 1, b = -5 and c = -1.

Plug into formula and solve for x.

The values of x are the zeros of the function.

3 0

2 years ago

On monday it took 5 builders to 3 1/2 hours to build a wall

zubka84 [21]

Answer: £ 81.38

Step-by-step explanation:

Given: On Monday,

5 builders took $3\dfrac{1}{2}$ hours ( i.e. $\dfrac{7}{2}$ hours ) to build a wall.

On Tuesday, only 2 builders were available.

As workers are inversely proportional to the time if the job remains constant.

Inverse variation equation : $x_1y_1=x_2y_2$

Let x be the time taken by 2 builders, then

$2\times x =5\times \dfrac{7}{2}$

$\Rightarrow\ x=\dfrac{35}{2}\times\dfrac{1}{2}=\dfrac{35}{4}=8.75$

So, 2 builders will take 8.75 hours.

Each paid £9.30 for each hour.

Then, each builder will be paid for the work completed on Tuesday = £9.30 x 8.75

≈ £ 81.38

Hence, each builder will be paid £ 81.38 for the work completed on Tuesday .

5 0

3 years ago

Please help this is my last question

Vanyuwa [196]

Answer:

Step-by-step explanation:

The area must be 232 in^2

8 0

2 years ago

After buying some new coins, Andre has 80 coins in his collection. Last month, he had 50 coins. The size of his current collecti

marta [7]

Answer:

160%

Step-by-step explanation:

5 0

3 years ago