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sertanlavr [38]
3 years ago
15

What are the roots of the equation 2x^2+85=7

Mathematics
1 answer:
Alex777 [14]3 years ago
7 0
THE ROOT IS 24 TIMES 15 WHICH IS IDK DUDE
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QUICK QUICK PLEASE! 1 MINUTE
Dima020 [189]

Step-by-step explanation:

Total tomato plants = 24 + 30 = 54

Total green bean plants = 18 + 25 = 43

The ratio of tomato plants to green bean plants

=  \frac{54}{43}  = 54 \:  :  \: 43

4 0
3 years ago
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Work out the gradient of the graph shown.
icang [17]

y=-3 and then x=-1 =-3:-1

4 0
3 years ago
I need some help with this calculus question
Over [174]

The tangent to y at the point (0, 5) has a slope equal to the derivative evaluated at x=0.

y=x^4+5e^x\implies y'=4x^3+5e^x\implies y'(0)=5

This tangent passes through the point (0, 5), so its equation is

y-5=5(x-0)\implies y=5x+5

The normal line passes through the same point, but is perpendicular to the tangent line, so its slope is the negative reciprocal of the slope of the tangent. So the equation for the normal line is

y-5=-\dfrac15(x-0)\implies y=5-\dfrac x5

3 0
3 years ago
What two numbers multiply to negative 54 and add up to 3
DENIUS [597]
The roots of 54 are: 1 and 54, 2 and 27, 3 and 18, 6 and 9, then it restarts all over again.

The two numbers have to multiply up to 54, and add up to 3. 9 and 6 have a difference of 3, and the multiplied sum is negative, so this is your pair.

9 and -6 fit this criteria, since they add up to 3 and multiply to 64.
6 0
3 years ago
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peter played his favorite video game for 10 hours last week. today, peters parents restricted him to 5 additional hours each wee
never [62]
<span>f(x) is the function that models Peters total video game time. 
</span><span>Peter played his favorite video game for 10 hours last week.
</span><span>Peters parents restricted him to 5 additional hours each week for the next 8 weeks.
After 8 weeks Peter will have played f(x) hours video game.
f(x)=10+8*x , where x is the number of hours Peter plays every week and this number is smaller than 5 (his parents restricted this number) , x<5

</span>
7 0
3 years ago
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