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2 years ago

Could you guys help me ? I'll give brainliest

Mathematics

1 answer:

ExtremeBDS [4]2 years ago

4 0

When you raise a number to a negative exponent, change the exponent to a positive and make the complete number a fraction with 1 as the numerator.

5 ^-2 = 1/5^2

The answer is C.

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Anyone know the answer??

Serggg [28]

Answer:

the second option

Step-by-step explanation:

in ax²+bx+c = 0:

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

subtract both sides by 6 to get to this form, as the right side will be left with 0

6x² + 8x - 6 = 0

here, the coefficient for x² (a) is 6, the coefficient for x (b) is 8, and the remaining number added on (c) is -6

plugging our numbers into the formula, we get

$x = \frac{-8+-\sqrt{(-8)^2-4(6)(-6)} }{2(6)}\\= \frac{-8+-\sqrt{64-(-144)} }{12} \\= \frac{-8+-\sqrt{208} }{12} \\ = \frac{-8+\sqrt{208} }{12} or \frac{-8-\sqrt{208} }{12}\\= 0.53518375848 or -1.86851709182\\= approximately -1.87, 0.54$

8 0

1 year ago

If x2 = 30, what is the value of x? +60 +15 130 O: 15

Tresset [83]

Answer:

<h2>(+)(-)√30</h2><h2>#option c</h2>

Step-by-step explanation:

☆ REFER TO THE ATTACHMENT!

<h3>♰Hope it helps................</h3>

7 0

2 years ago

Tessa is cooking steak for her family. She wants to be sure the steak has an internal temperature of at least 160 degrees Fahren

Over [174]

Answer:

Population : all the steaks Tessa can cook

Parameter : minimum internal temperature of 160 degrees Fahrenheit

Sample : two random thermometer readings

Statistic : minimum sample reading of 165 degrees Fahrenheit

Step-by-step explanation:

Let's recall the definitions of these statistical concepts and match it with the information that were provided to us:

Populations can be the complete set of all similar items that exist, in our case, all the steaks that Tessa can cook.
Parameter is is a value that describes a characteristic of an entire population, such as the minimum temperature of the steaks Tessa is cooking in Fahrenheit degrees.
Sample is a subset of the population, in our case, the two random readings of the thermometer Tessa did.
Statistic is a characteristic of a sample, for our problem, it's the minimum reading of 165 degrees Fahrenheit.

3 0

2 years ago

-2 (5) + 4 help plzzz

KengaRu [80]

Answer:

-6

Step-by-step explanation:

-2 * 5 = -10

-10 + 4 = -6

Answer is -6

3 0

2 years ago