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alisha [4.7K]
2 years ago
9

Last question for the night.

Mathematics
2 answers:
klio [65]2 years ago
7 0

Step-by-step explanation:

  1. USE PEMDAS I KNOW YOUKNOT HOW TOUSE PEMDAS RIGHT?
tresset_1 [31]2 years ago
3 0

-29 im not 100% sure. Let me know if I'm right

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What is 10(b + 4c) expanded? (using the distributive property)
jeka94

Answer:

10b+40c

Step-by-step explanation:

10(b + 4c) you have to multiply 10 by each member

10b+40c

8 0
3 years ago
An airplane leaves an airport at 9:00 p.M. With a heading of 270 and a speed of 610 mph. At 10:00 p.M. The pilot changes the he
timama [110]

Answer:

2330.51 miles

Step-by-step explanation:

Given that the speed of the airplane = 610 mph.

The airplane leaves an airport at 9:00 P.M. with a heading of 270 degrees and at 10:00 P.M., the pilot changes the heading to 310 degrees.

So, for 1 hour the plane is heading at 270 degrees and for 3 hours, from 10:00 p.m to 1:00 a.m, the plane is heading at 310 degrees as shown in the figure.

As, distance = time x speed, so

The distance covered at 270 degrees, d_1 = 1\times610=610 miles.

The distance covered at 310 degrees, d_2 = 3\times610=1830 miles.

Total distance covered, d, is the magnitude of the sum of vectors \vec{d_1} and \vec{d_2} as shown in the figure.

The angle between the vectors \vec{d_1} and \vec{d_2}, \theta=310-270=40 degree.

Magnitude of sum of the vectors \vec{d_1} and \vec{d_2},

d= \sqrt{|\vec{d_1}|^2+|\vec{d_2}|^2+2|\vec{d_1}|\;|\vec{d_2}|\cos\theta} \\\\\Rightarrow d=\sqrt{610^2+1830^2+2|\vec{d_1}|\;|\vec{d_2}|\cos\(40^{\circ})}

\Rightarrow d=2330.51 miles

Hence, at 1:00 a.m, the airplane is at a distance of 2330.51 miles from the airport.

4 0
3 years ago
Which unit of measurement would be the most appropriate to measure a bottle of nail polish
lys-0071 [83]

Answer:

milliliter

Step-by-step explanation:

Most of nail polish have their measurement in ml

7 0
3 years ago
Sort the ratios listed at the right into bins so that equivalent ratios are grouped together:
sesenic [268]
What are the ratios and what are the different bins
5 0
3 years ago
Read 2 more answers
Work must be shown, 15 points if answered, + brainlynessiest answer
Mkey [24]

Answer:

40cm

Step-by-step explanation:

if the area is 100 then you have to do the square root of 100 which is 10.

each side is 10.

10 x 4 because 4 equal sides

40

3 0
2 years ago
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