All categories

3 years ago

Which of the following represents the most accurate estimation of 438 + 614?

Mathematics

2 answers:

attashe74 [19]3 years ago

4 0

438 is about 440 and 614 is about 615
440+615=1055

Savatey [412]3 years ago

3 0

438 + 614 = 1052
1052 ≈ 1050

You might be interested in

What is the solution to this system of equations?

MissTica

Answer:

the equation has no solution

3 0

3 years ago

What is the purpose of the cell membrane?

shutvik [7]

The answer to yo question is 4

5 0

3 years ago

{7TH GRADE} Create four (4) problems that include fractions. Solve the problems using estimation.

zaharov [31]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The width of a rectangle is the length minus 3 units. The area of the rectangle is 54 units. What is the width, in units, of a r

saul85 [17]

Width of the rectangle is 9 units

Step-by-step explanation:

Step 1: Let the width of the rectangle be x. Then the length = x - 3. Find dimensions of the rectangle if its area = 54 sq. units

Area of the rectangle = length × width

54 = x (x - 3)

54 = x² - 3x

x² - 3x - 54 = 0

x² + 6x - 9x - 54 = 0 (Using Product Sum rule to factorize)

x(x + 6) - 9(x + 6) = 0

(x + 6)(x - 9) = 0

x = -6, 9 (negative value is neglected)

x = 9 units

4 0

4 years ago

Find the volume of a right circular cone that has a height of 17.1 in and a base with a

padilas [110]

Answer:

Volume of the right circular cone = 1188.79 cubic inches

Step-by-step explanation:

Height of the cone = 17.1 inch

Circumference of the cone= 16.3 inches

Radius = 16.3/2

= 8.15 inch

Volume of the cone is:

$=\pi *r^2*\frac{h}{3}$

As, $\pi =\frac{22}{7}=3.14$

Volume of the cone

$=3.14*(8.15*8.15)*\frac{17.1}{3} \\\\=3.14*(8.15*8.15)*5.7\\\\=3.14*66.42*5.7\\\\=3.14*378.59\\\\=1188.79inch^3$

Volume of the right circular cone is 1188.79 cubic inches

4 0

3 years ago