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3 years ago

Please help and explain question 12

Mathematics

1 answer:

il63 [147K]3 years ago

3 0

The sunflower is 2.387 meters tall.

The question is asking: which rounding will result in the greatest value?

To see, we need to round 2.387 to meter, tenth meter, and hundredth meter.

Meter - 2 meters

Tenth meter - 2.4 meters

Hundredth meter - 2.39 meters

As you see, rounding to the tenth meter gives the greatest value of 2.4. Therefore, Bahir should use a decimal rounded to the tenth meter.

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Answer:

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Step-by-step explanation:

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3 years ago

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Explain why 2x^2+18a=10 has no real number solutions

Readme [11.4K]

Answer:

This equation does have real solutions contrary to your question. They are $\frac{-9 + \sqrt{101}} {-10}$ OR $\frac{-9 - \sqrt{101}} {-10}$ .

Step-by-step explanation:

In order to prove this has real number solutions, we simply need to use the quadratic formula. To do this, we first need to solve for 0.

2x^2 + 18x = 10

2x^2 + 18x - 10 = 0

Now that we have this and they are all factors of 2, we can divide everything by 2 for ease.

2x^2 + 18x - 10 = 0

x^2 + 9x - 5 = 0

Now we can use the quadratic equation to solve. Remember that A = 1 due to the coefficient of x^2, B = 9 as the coefficient of x and C = -5 as the constant.

$\frac{-b +/- \sqrt{b^{2} - 4ac}} {2a}$

$\frac{-9 +/- \sqrt{9^{2} - 4(1)(-5)}} {2(-5)}$

$\frac{-9 +/- \sqrt{81 + 20}} {-10}$

$\frac{-9 +/- \sqrt{101}} {-10}$

$\frac{-9 + \sqrt{101}} {-10}$ OR $\frac{-9 - \sqrt{101}} {-10}$

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3 years ago

Find the measure of the missing angle in the quadrilateral

photoshop1234 [79]

Answer:

11) x=80

12) x=40

13) x=8

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4 years ago

A water cooler at the office holds about 13 cups of water. When the container has 1 cup or less of

sleet_krkn [62]

Answer:

if everyone fills there cup wvenly it is 12 or

Step-by-step explanation:

1 cup = 8 ounces so there is 13 cups right ? so they have to fill it back up when htere is a cup left so 13 minus 1 cup of water is 12.

ANSWER IS 12 DUE TO THE FACT THAT IT HAS TO BE CHANGED WHEN THERE IS ONLY 1 CUP LEFT ( not yelling just want you to see and understand my answer sorry for the caps.)

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