The graph below represents a recent 10 meter race between two remote control cars

Mathematics

2 answers:

user100 [1]2 years ago

5 0

5/2 is the answer
Hoped it helped

Rus_ich [418]2 years ago

4 0

Answer:

y = 1/2x - 9/2

Step-by-step explanation:

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What is 63= 9k;6,7,8

OLEGan [10]

63 = 9k

divide by 9 on each side to get k by itself

k = 7

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3 years ago

Find a polynomial function of least degree having only real coefficients, a leading coefficient of 1, and roots of 2-√6 , 2+ √6

horsena [70]

Answer:

$x^{4} -18x^{3}+104x^{2} -172x-100$

Step-by-step explanation:

The 3 roots are given out of which 2 are real and 1 is imaginary. For a polynomial of least degree having real coefficients, it must have a complex conjugate root as the 4th root. Therefore, based on 4 roots, the least degree of polynomial will be 4. Finding the polynomial having leading coefficient=1 and solving it based on multiplication of 2 quadratic polynomials, we get:

$\\\\x_{1} = 2-\sqrt{6} \\x_{2} = 2+\sqrt{6} \\x_{3}=7-i \\x_{4}=7+i \\\\P(x)=1(x-x_{1})(x-x_{2} )(x-x_{3} )(x-x_{4} ) \\\\=(x-(2-\sqrt{6}))( x-(2+\sqrt{6} )) (x-(7-i))( x-(7+i))\\=((x-2)+\sqrt{6})( ( x-2)-\sqrt{6} ) ((x-7)+i)( (x-7)-i)\\=((x-2)^{2} -(\sqrt{6} )^{2} )((x-7)^{2}-(i)^{2})\\=(x^{2} -4x-2)(x^{2} -14x+50)\\=x^{4} -18x^{3}+104x^{2} -172x-100\\$

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2 years ago

Which division problem would have an estimated quotient of 3.5 if the divisor and dividend were rounded to the nearest whole num

Artyom0805 [142]

Answer:

27.7 divided by 7.8

27.7 divided by 7.8 has an quotient of 3.55..., while the rest have different values not even on the 3.50 - 3.59 scale. The answer is 27.7 divided by 8.

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3 years ago

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Alisiya [41]

Answer:

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Step-by-step explanation:

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2 years ago

What is the value of X in the equation X + 7= 19

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