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4 years ago

By rounding to one significant figure 615 x 38

Mathematics

1 answer:

Lunna [17]4 years ago

6 0

Answer:

20000

Step-by-step explanation:

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Number two please <br> ASAP

miv72 [106K]

The solutions for $-5 +2x^{2} = -6x$ is option 3. $x= \frac{-6 \pm \sqrt{36-4 (2)(-5)}}{4} .$

Step-by-step explanation:

Step 1:

First, we must bring the equation to the form of $ax^{2} +bx +c =0.$

So $-5 +2x^{2} = -6x$ becomes $2x^{2} +6x-5=0.$

The value of a is the coefficient of the $x^{2}$ term, the value of b is the coefficient of x term and c is the coefficient of the constant term.

Comparing the above equation to $ax^{2} +bx +c =0,$ we get $a = 2, b = 6,$ and $c=-5.$

We have the formula $x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}.$

Step 2:

By substituting the known values, we get

$x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a} =\frac{-6 \pm \sqrt{6^{2}-4 (2)(-5)}}{2 (2)}.$

$\frac{-6 \pm \sqrt{6^{2}-4 (2)(-5)}}{2 (2)} = \frac{-6 \pm \sqrt{36-4 (2)(-5)}}{4} .$

This is the third option.

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4 years ago

PLS HELPPPPPPPPPPP Determine the approximate value of X round to the nearest hundredth

Likurg_2 [28]

Answer:

Step-by-step explanation:

We can immediately elimate two answers since x cannot be larger than the hypotenuse, which is 9. You can cosine = adjaent/hypotenuse, which gives the equation cos(54) = x/9, which simplifies to x = 9*cos(54). When you plug this into a calculator, you should get 5.29. Keep in mind that 54 is measured in degrees and not radians because.

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3 years ago

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Slope -3 y-intercept (0,-1/5)

Artyom0805 [142]

Answer:

y = -3x+-1/5

Step-by-step explanation:

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3 years ago

2 3/4 ÷ 10 in simplest form

nekit [7.7K]

Answer:

Ya Motha

Step-by-step explanation:

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3 years ago

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Last week, the ratio of laptops to desktops sold at a computer store was 23. Twenty-seven desktop

slega [8]

Answer:

18 Laptop models were sold.

Step-by-step explanation:

27/3=9

9*2=18

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3 years ago

By rounding to one significant figure 615 x 38​

By rounding to one significant figure 615 x 38