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3 years ago

12

If f(c) = 0, which of the following statements must be true?

1 answer:

nydimaria [60]3 years ago

4 0

The radius of Neptune is 2.48 x 107m. The radial acceleration of an object at the equatorial surface of
The radius of Neptune is 2.48*10^7m. The radical acceleration of an object at the equatorial surface of Neptune is 0.292 m/s2. What is Neptune's period of rotation in seconds?
A.18,000 s
B.1200 s
C.58,000 s
D.9200 s

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Draw rectangle that has a perimeter of 12 unit and an area of 8 square unit

77julia77 [94]

The side lengths are 2 units and 4 units. Do you need work?

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3 years ago

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Two sisters like to compete on their bike rides. Tamara can go 4 mph faster than her sister, Samantha. If it takes Samantha 1 ho

Triss [41]

Answer:

16 mph

Step-by-step explanation:

You should first form equations related to this information

Given,Tamara can go 4 mph faster than her sister, Samantha

Lets take speed to ride a bike for Samantha to be= x mph

The speed to ride a bike for Tamara will be= x+4 mph

To cover a distance of 80 miles, Samantha takes 1 hour longer than Tamara

Introduce the formula for time; time=distance/speed=D/S where D is distance in miles and S is speed in miles per hour

Here time Samantha takes to cover a distance of 80 miles is 1 hour more than that taken by Tamara, hence

<u>Time taken by Samantha</u>

$=\frac{80}{x}$

<u>Time taken by Tamara</u>

$=\frac{80}{4+x}$

<u>Equation for difference in time</u>

$=\frac{80}{x} -\frac{80}{4+x} =1$

Solve the equation for difference in time to get value of x which is samantha speed

$=\frac{80}{x} -\frac{80}{x+4} =1\\\\\\=80(4+x)-80(x)=x(4+x)\\\\\\=320+80x-80x=4x+x^2\\\\\\=x^2+4x-320=0$

Solve quadratic equation by the quadratic formula where a=1,b=4 and c=-320

x=(-b±√b²-4ac)÷2a

x=(-4±√4²-4×1×-320)÷2×1

$x=\frac{-4+/-\sqrt{4^2-4*1*-320} }{2} \\\\\\x=(-4+/-\sqrt{1296} )/2\\\\\\x=\frac{-4+36}{2} =\frac{32}{2} =16$

Samantha speed is 16 mph

6 0

3 years ago

Find the missing length in the image below

crimeas [40]

Answer:

not similar

Step-by-step explanation:

32/26 = 16/13

18/12 = 3/2

16/13 is not equal to 3/2, so the rectangles are not similar.

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3 years ago

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A pie shop sold 1,500 pies in a month if 30% of the pies to the shop were sold were banana crram

weeeeeb [17]

Answer:

450 banana cream pies

Step-by-step explanation:

Total number of pies in a month = 1500;

this represents 100% of the pies

Out of the total pies in a month, the proportion of banana cream pies = 30%

Next, find the number of banana cream pies ;

# of Banana pies = proportion of banana pies * total number of pies

=30% *1500

= 450

Therefore, the banana cream pies sold were 450.

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3 years ago

Finding unknown angle measures

faltersainse [42]

Wow glad I’m not in this grade yet

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4 years ago