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3 years ago

If a = 5 in the right triangle what is the value of b and c

Mathematics

1 answer:

Nadya [2.5K]3 years ago

6 0

Answer:

b=5√3, c=10

Step-by-step explanation:

30-60-90 triangle

c=2a

b=a√3

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Use function notation to represent the area of a circle whose circumference is 103 cm

Nataly_w [17]

Circumference of the circle $=103$ cm

i.e., $C = 2 \pi r = 103$

i.e., $r = \frac{103}{2 \pi}$

Area of the circle is given by

$A = \pi r^2$

$A = \pi (\frac{103}{2 \pi})^2$

$A = \pi (\frac{10609}{4 \pi^2})$

$A =\frac{10609}{4 \pi}$

Therefore, the area of the circle is: $A =\frac{10609}{4 \pi}$ $cm^2$

4 0

3 years ago

A commercial jet and a private airplane fly from Denver to Phoenix. It takes the commercial jet 1.1 hours for the flight, and it

FinnZ [79.3K]

Answer:

The speed of the private airplane is 770 mph, the speed of the commercial airplane is 980 mph.

Step-by-step explanation:

Let x mph be the speed of private airplane. If the speed of the commercial jet is 210 miles per hour faster than the speed of the private airplane, then the speed of commercial airplane is (x+210) mph.

It takes the commercial jet 1.1 hours for the flight, then it covered the distance of

$1.1(x+210)\ miles$

It takes the private airplane 1.8 hours for the flight, then it covered the distance of

$1.8x\ miles.$

The distances are the same, so

$1.1(x+210)=1.8x\\ \\1.1x+231=1.8x\\ \\1.8x-1.1x=231\\ \\0.7x=231\\ \\7x=2,310\\ \\x=770$

The speed of the private airplane is 770 mph, the speed of the commercial airplane is 770 + 210 = 980 mph.

3 0

3 years ago

Read 2 more answers

Can you guys please help meeeeee????? And possibly explain it to me?

frozen [14]

Answer:

y= -1/2x+4

Step-by-step explanation:

slope = rise/run on the graph. the graph is going down, so it's negative. find where the line intersects the graph at a point and then count the squares up and over until it meets again. the line meets at (6,1), you count up one square and over 2 and it meets again. this gives you your rise/run = 1/2. the y intercept is where the line intersects the y axis. here the y intercept is 4 because the like goes through 4 at the y axis.

3 0

3 years ago

What is the value of x in the equation:<br> 2(2x -5 -4) =160 -17?

slava [35]

Answer:

Step-by-step explanation:

Have a picture attached, if you can't see it, please let me know! If you have any questions don't be afraid to ask!