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?

answer: a. 74

step-by-step explanation:

it shows divided evenly, so add the 37+37 = 74

ddd

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

b. hoped i'm right lol

step-by-step explanation: