A nurse measured the blood pressure of each person who visited her clinic. A​ relative-frequency histogram for the systolic blood pressure readings for those people aged 25 to 40 is provided. The blood pressure readings were given to the nearest whole number. Approximately what percentage of the people aged​ 25-40 had a systolic blood pressure reading of at least 110 but less than​ 120?

14

step-by-step explanation:

14 x 3 = 42

60

step-by-step explanation:

every triangle measures a total of 120 degrees. you have to find angle c. we know that isosceles triangles angles are equal. 60 degrees plus 60 degrees gives you 120.

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629