3 years ago

If f(x)= x2+2x-10, what id f(-2)

Mathematics

1 answer:

Sindrei [870]3 years ago

6 0

The answer is -18. Hope this helps.

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The 1992 world speed record for a bicycle (human-powered vehicle) was set by Chris Huber. His time through the measured 200 m st

aleksklad [387]

Answer:

Speed of Chris Huber = 30.726 m/s

Time taken by Sam = 5.55 s

Step-by-step explanation:

Given:

Distance = 200 m

Time taken by Chris Huber = 6.509 s

Now,

Speed of Chris Huber = $\frac{\textup{Distance}}{\textup{Time}}$

Speed of Chris Huber = $\frac{\textup{200 m}}{\textup{6.509 s}}$

Speed of Chris Huber = 30.726 m/s

Speed of Sam = Speed of Chris Huber + 19.0 km/h

Now,

1 km/hr = 0.277778 m/s

thus,

19.0 km/h = 19.0 × 0.27 = 5.278 m/s

thus,

Speed of Sam = 30.726 + 5.278 = 36.004 m/s

therefore,

Time taken by Sam = $\frac{\textup{Distance}}{\textup{Speed}}$

Time taken by Sam = $\frac{\textup{200}}{\textup{36.004}}$ = 5.55 s

6 0

3 years ago

Can y’all please help me fast

Amanda [17]

Answer:

Cant see.

Step-by-step explanation:

5 0

3 years ago

Find the product of 27×6×60 then explain how you would use mental math to find the product of 27×600

Ne4ueva [31]

27x6x60=9,720 *You can use mental math by multiplying 27 by 6 and adding the 2 zeros to the end of the product*

7 0

3 years ago

This system of equations has A. exactly one solution B. no solution C. infinitely many solution

german

Answer:

Step-by-step explanation:

This is because both lines are parallel, leaving infinite solutions.

5 0

3 years ago

Is 2 the solution to x to the third minus x minus 6 equals 0

Natali [406]

X actually equals the cube root of 6
${x}^{3} - 6 = 0 \\ {x}^{3} = 6 \\ x = \sqrt[3]{6}$

5 0

3 years ago