Solve and show work for (+2) (2+5) = 0

Determine whether the study described below is a randomized experiment or an observational study. A medical researcher wants to determine whether exercising can lower blood pressure.

The height (h metres) and age (a years) of a tree are related by the following inequality: h < 4a - 3 for values of a between 1 and 10 Which pair of values satisfy this inequality? a. h = 2 and a = 1 b. h = 6 and a = 2 c. h = 10 and a = 3 d.

What is the property used in (53 * 7) x 5 = t * (7 x 5) and what is the value?

In f (x) = 2x^2-8x-10 the y intercept is at and the x intercepts are (-1,0) and

Tom earns $30 a week mowing lawns. He spends one-tenth of his earnings on lunch and one-fifth of his earnings on music. He saves the rest. How many dollars does Tom save? Tell me how you found the answer.

Josephine was asked to make a one-fiftieth scale model of the new water tower for her town. She constructed the model that is shown below. A water tower has a height of 2.25 feet and diameter of 1.25 feet.

How would you write 0.00568 in scientific notation?

Mario was visiting the carnival when he noticed a few number relationships. If three tenths of the visitors were adults and there were 100 visitors that were adults?

How do you find the absolute deviation of a data

One night a theater sold 186 movie tickets. an adults ticket cost $14, and a childs costs $10. in all, $2148 was taken in. How many of each kind of ticket were sold?