2 years ago

Tyshdhhehdrhrhfhfurjrjd

Mathematics

2 answers:

jek_recluse [69]2 years ago

7 0

Answer:

.....

Step-by-step explanation:

IrinaK [193]2 years ago

4 0

Answer: ....

Step by step explanation:

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Evaluate 6(5-(6-5)-3

IrinaK [193]

Answer:

Step-by-step explanation:

Evaluate 6(5-(6-5)-3) = 6(5-1-3) {first solve innermost bracket}

= 6* (5-4) = 6*1 =6

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2 years ago

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Michael walked 30 meters in 20 seconds how many meters does he walk per second

Kipish [7]

Answer:

1.5 m/s or 1.5 meters per second

Step-by-step explanation:

Distance/Time=Speed

30m/20s= 1.5 m/s or 1.5 meters per second

6 0

3 years ago

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What are the solutions to the quadratic equation -2x^2 + 6x + 3 = 0?

mario62 [17]

For this, we will be using the quadratic formula, which is $x=\frac{-b+/-\sqrt{b^2-4ac}}{2a}$ , with a=x^2 coefficient, b=x coefficient, and c = constant. Our equation will look like this: $x=\frac{-6+/-\sqrt{6^2-4*(-2)*3}}{2*(-2)}$

Firstly, solve the multiplications and the exponents: $x=\frac{-6+/-\sqrt{36+24}}{-4}$

Next, do the addition: $x=\frac{-6+/-\sqrt{60}}{-4}$

Next, your equation will be split into two: $x=\frac{-6+\sqrt{60}}{-4},\frac{-6-\sqrt{60}}{-4}$ . Solve them separately, and your answer will be $x=-0.436,3.436$