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3 years ago

Find the product of 3/5x15

Mathematics

2 answers:

VashaNatasha [74]3 years ago

5 0

The answer for this is 9

Elis [28]3 years ago

4 0

Answer : 45/4 ( in decimal: 11.25)

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Solve 8x2 + 6x + 5 = 0

MariettaO [177]

8 x 2 + 6x + 5=0
16 + 6x + 5=0
6x+21=0
6x+21-21=0-21
6x=-21
6x/6=-21/6
x=-7/2

5 0

3 years ago

Please help me <br>Due in an hour

vladimir1956 [14]

131.88 or jus do radius times 2 so 21+ 21 = 42.

42 x pi(3.14) = 131.88

3 0

2 years ago

Solve. (7.32 x 0.04) how do i solve this

solong [7]

Answer:

7.32 x 0.04 = 0.2928

Step-by-step explanation:

7 0

2 years ago

The circumference of a circle is 19π in. What is the area, in square inches? Express your answer in terms of π.

Lelu [443]

Answer:

A = 90.25 pi in^2

Step-by-step explanation:

The circumference is given by

C = 2*pi*r

19pi = 2*pi*r

Divide each side by 2 pi

19pi / 2 pi = 2*pi*r/ 2pi

9.5 = r

The area is given by

A = pi r^2

A = pi ( 9.5)^2

A = 90.25 pi in^2

8 0

3 years ago

Read 2 more answers

Two planes start flying towards each other simultaneously from two different cities. The distance between the cities is 960 mile

ANTONII [103]

Answer:

257.5 mph

332.5 mph

Step-by-step explanation:

The initial distance between the two planes is 960 miles, while the final distance (after t=1.5 h) is 75 miles, so the total distance covered by the two planes in 1.5h is

$d=960-75=885$ miles

Calling v1 and v2 the velocities of the two planes, we have the following equations:

(1) $v_1 = v_2 + 75$ --> velocity of plane 1 exceeds velocity of plane 2 by 75 mph

(2) $v_1 t+ v_2 t=885$ --> the total distance covered by the two planes is 885 miles (t=1.5 h is the time, and the products v1 t and v2 t represent the distance covered by each plane)