4 years ago

Multiplying greater numbers

Mathematics

1 answer:

Maslowich4 years ago

5 0

I don't understand the question

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Round 6 6/7 to the nearest whole number.

natali 33 [55]

Whole number = 1, 2, 3, 4, 5, 6, 7, 8, ...

6 $\frac{6}{7}$ = 6.86 ≈ 7

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3 years ago

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Kelly has some savings. After mowing lawns Saturday, she added $70 to her savings. How much money has Kelly saved?

loris [4]

Answer:

Step-by-step explanation:

saveings +70 the money she added to the money he or she saved

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3 years ago

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Is 10x and 2.5x like terms

damaskus [11]

Yes they are both like terms so if they are in the same equation you can just add them together.

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3 years ago

Pls answer it correctly!! I really need help

solong [7]

Answer:

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Step-by-step explanation: TEHEHEHEHEHE

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3 years ago

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Which equation has the components of 0 = x2 – 9x – 20 inserted into the quadratic formula correctly?

Aneli [31]

Answer:

The required equation is $x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}$ .

Step-by-step explanation:

If a quadratic equation is $ax^2+bx+c=0$ , then the quadratic formula is

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

The given quadratic equation is

$x^2-9x-20=0$

Here, a=1, b=-9 and c=-20.

Substitute a=1, b=-9 and c=-20 in the above quadratic formula.

$x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}$

Therefore the required equation is $x=\frac{-(-9)\pm \sqrt{(-9)^2-4(1)(-20)}}{2(1)}$ .

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3 years ago

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