Solve the equation

2x-3 + 4x=21

x=-12

x=-6

x=4

x=6

Que número restado de - 5 se obtiene 4

A rectangular pyramid has 5 faces. How many triangles and how many rectangles form a rectangular pyramid?

A rounded number for the speed of an insect Is 5.67 meters per second. What are the fastest and slowest speeds to the thousandths that could round to 5.67? Explain.

Natalie wants to measure the width of a river. She marks off two right angles, as shown in the figure. The base of the larger triangle has a length of 58m, and the base of the smaller triangle has a length of 26m.

C (x) = 0.000002x3 - 0.03x2 + 400x + 80,000 where C (x) denotes the total cost incurred in producing x sets. Find the level of production that will yield a maximum profit for the manufacturer. Hint: Use the quadratic formula

a food manufacturer recently developed a new preservative to extend the shelf life of its perishable food items. It makes two batches of the perishable items. The preservative is added only to the second batch.

The diagonals of a rectangle are equal. always sometimes never

Write a decimal between 12 and 15 that has a 3 in the tenths place and a 6 in the hundredths place

What number is 5% of 46?

A empty graduated cylinder has a mass of 82.14 g. When 25.0 mL of an unknown liquid are poured into the cylinder and the liquid is 104.52. What is the density of the liquid?