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luda_lava [24]
3 years ago
8

I just want to know if I did this correctly or not. This is something I just learned today.​

Mathematics
1 answer:
Len [333]3 years ago
6 0

Answer:

yes I also learnt those today only ..

yes they r correct only

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Mark is in training for a bicycle race. He needs to ride 50 kilometers a week as part of his training. He rode 18.23 kilometers
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17.83 km

Step-by-step explanation:

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3 years ago
Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9
a_sh-v [17]

Answer:

x = 3 and x = -7

Step-by-step explanation:

The given quadratic equation is x^2+4x-21=0. We need to find the solution of this equation.

If the equation is in the form of ax^2+bx+c=0, then its solutions are given by :

x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}

Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

x=\dfrac{-b+ \sqrt{b^2-4ac} }{2a},\dfrac{-b- \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-4+ \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)},\dfrac{-4- \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)}\\\\x=3, -7

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6 0
3 years ago
Of flowers in a field 43% are yellow . The others are white. A bee randombly lands on a flowerdescribe the complelment of the be
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Answer:

0.43

Step-by-step explanation:

Yellow flowers are 43%.

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3 years ago
Find the maximum value of Y = -3(x+7)(x+1)
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For my answer i got y = x - 18
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8 0
3 years ago
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