Question

$-\frac{5.1^{2}}{4}+3(5.1)+7=$

Explanation:

Step1: Calculate the square of 5.1

$5.1^2 = 26.01$

Step2: Divide the result by 4 and take the negative

$-\frac{26.01}{4} = -6.5025$

Step3: Calculate 3 times 5.1

$3\times5.1 = 15.3$

Step4: Add the three parts together

$-6.5025 + 15.3 + 7$
First, $-6.5025 + 15.3 = 8.7975$
Then, $8.7975 + 7 = 15.7975$

Answer:

15.7975