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vichka [17]
3 years ago
11

If you can help would that would be amazing

Mathematics
1 answer:
shutvik [7]3 years ago
6 0

Answer:

yes for the first one

because if you take number one for an example and use it for y

1^7*1^7*1^7=1 and 1^7*7*7=1

they both equal one

2.) \sqrt{x}

\sqrt[3]{x}\sqrt[6]{x}=\:x^{\frac{1}{3}}x^{\frac{1}{6}}=\:x^{\frac{1}{3}+\frac{1}{6}}

=x^{\frac{1}{3}+\frac{1}{6}}

join 1/3+1/6= 1/2

then you get the answer

\sqrt{x}

Step-by-step explanation:

brainlist pls:>

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The amount of time a certain brand of light bulb lasts is normally distribued with a mean of 1800 hours and a standard deviation
DedPeter [7]

Answer: 68% of light bulbs last between 1765 hours and 1835 hours.

Step-by-step explanation:

The empirical rule states that for a normal distribution, nearly all of the data will fall within three standard deviations of the mean . The empirical rule is further illustrated below

68% of data falls within the first standard deviation from the mean.

95% fall within two standard deviations.

99.7% fall within three standard deviations.

From the information given, the mean is 1800 hours and the standard deviation is 35 hours.

1 standard deviation = 1 × 35 = 35

1800 - 35 = 1765 hours

1800 + 35 = 1835 hours

Therefore, 68% of light bulbs last between 1765 hours and 1835 hours.

6 0
3 years ago
Which correctly gives the expression using addition? –17.9 – 4.2
Shkiper50 [21]
<span>c. –17.9+(–4.2)

</span><span><span>The General rule for adding and subtracting numbers </span><span>
1. Two integers with the same signs
Once 2 integers has the same sign, then just add the numbers.
For example</span> 
<span>1. 1+1 = 2 </span>
<span>2. 2 + 5 = 7   </span><span>

2. Two integers with different signs
<span>When 2 integers has different sign, then find the difference
For example
1. 1-1 =0</span></span> 
<span>2. 2 – 5 = -3 </span><span>

3. Two integers that vary in sign
<span>When 2 integers vary in sign, then it will depend who which number carries the largest value
For example</span></span> <span><span>
1.   </span>-3 + 2 = -1</span> 
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5 0
3 years ago
Natalie made a nut mixture that contains
Harman [31]

Answer:

50%

Step-by-step explanation:

10 kg of mixed nuts that contain 60% peanuts

60(10)

plus

15 kg of a different brand of mixed nuts. with x% peanuts

x(15)

=

That makes 25 kg with 54% peanuts

54(25)

--------------------------

Equation

60(10) + x(15) = 54(25)

600 + 15x = 1350

Subtract 600 from both sides

15x = 750

Diviede both sides by 15

x = 50

50%

4 0
3 years ago
What is the area of the parallelogram?
Anarel [89]

Answer:

Step-by-step explanation:

The height is connected to the base of 16cm

Area = b * h

b = 16

h = 5

Area = b * h

Area = 16 cm * 5 cm

Area = 80 cm^2

4 0
3 years ago
Read 2 more answers
16 ounces is equivalent to 1 pound. A lion cub born at
Musya8 [376]

Answer:

368 ounces

Step-by-step explanation:

since 16 ounces is 1 pound, multiply 23 by 16

5 0
3 years ago
Read 2 more answers
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