Solve the equation for the indicated variable. n - (7 - a) = 4a for n

A. 20a + 28
B. 12a + 28
C. 20a - 28
D. 0.75a + 1.75


Answer: B

Mathematics

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Solve the problem.A 3-oz serving of roasted, skinless chicken breast contains 140 calories, 27 grams of protein, and 3 grams of fat. A broccoli spear contains 50 calories, 5 grams of protein, and 1 gram of fat. A cup of whole milk contains 150 calories, 8 grams of protein, and 8 grams of fat. The amount of calories, protein, and fat in one serving of chicken breast can be represented by the matrix . Find the matrices B and M for the amounts of calories, protein, and fat in a broccoli spear and a cup of whole milk, respectively, and write the matrix  which

represents the calories, protein, and fat in 3 servings of chicken, 6 servings of broccoli, and 3 cups of whole milk.

A.

B.

C.

D.

Mathematics

Solve the problem.A person at the top of a 600 foot tall building drops a yellow ball. The height of the yellow ball is given by the equation  where h is measured in feet and t is the number of seconds since the yellow ball was dropped. A second person, in the same building but on a lower floor that is  from the ground, drops a white ball  after the yellow ball was dropped. The height of the white ball is given by the equation 

src="https://sciemce.com/media/4/ppg__fgfg0519191728__f1q101g4.jpg" alt="" style="vertical-align: -4.0px;" /> where h is measured in feet and t is the number of seconds since the yellow ball was dropped. Find the time that the balls are the same distance above the ground and find this distance. A. 4.5 sec; 276 ft B. 6 sec; 24 ft C. 5.5 sec; 116 ft D. 5 sec; 200 ft

Mathematics

Describe how the graph of the given function can be obtained by transforming the graph of the reciprocal function f(x) = 1/x.f(x) = 

A. Shift the graph of the reciprocal function left 6 units. B. Shift the graph of the reciprocal function up 6 units. C. Shift the graph of the reciprocal function down 6 units. D. Shift the graph of the reciprocal function right 6 units.

Mathematics

Solve the equation. =  + 6

A. 4 B. 4, -4 C. -4 D. no solution

Mathematics