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KATRIN_1 [288]
3 years ago
10

PLZ HELP ME WILL GIVE BRAINLIEST

Mathematics
1 answer:
nadezda [96]3 years ago
3 0

Answer:

1.  2 \times 10^{- 4} = 2 \div 10^{4}

2. (- 10)^{2} = 100 and - 10^{2} = - 100

3. (a.b.c. ........)^{n} = a^{n}.b^{n}.c^{n}. ..........

Example:  (30)^{4} = (2 \times 3 \times 5)^{4} = 2^{4} \times  3^{4} \times 5^{4}

Step-by-step explanation:

1. We have 2 \times 10^{- 4}, and we have to prove that this term is equivalent to 2 \div 10^{4}.

Now, 2 \times 10^{- 4}

= 2 \times \frac{1}{10^{4} }  

{Since we know the property of exponent as a^{- b} = \frac{1}{a^{b} } }

= \frac{2}{10^{4} }

= 2 \div 10^{4}

2. (- 10)^{2} = (- 10) \times (- 10) = 100 and  

- 10^{2} = - [(10) \times (10)] = - 100

3. The power of products property gives

(a.b.c. ........)^{n} = a^{n}.b^{n}.c^{n}. .......... ........ (1)

For example, we can write, (30)^{4} = (2 \times 3 \times 5)^{4} = 2^{4} \times  3^{4} \times 5^{4} = 810000

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What is the distance between the points (5, 1) and (-3, -5)?
Anvisha [2.4K]

Answer: 10

Step-by-step explanation: d = √(x^²-x^₁)^2+(y^²-y^₁)^2 d = √ (-3-5)^2+ (-5-1)^2 d = √(-8)^2 + (-6)^2 d = √64+36 d = √100 d = 10

6 0
3 years ago
I do not understand any of the questions its asking :c
Agata [3.3K]

Answer:

Step-by-step explanation:

The total number of students is 350 + 50 + 225 + 375 = 1000.

There are 225 students in band only, as well as 50 students in both band and choir.  So there are 275 students in band out of the total of 1000, or 27.5%.

There are 350 students in choir only, as well as 50 students in both choir and band.  So there are 400 students in choir, 50 of whom are also in band.  So the probability is 50/400, or 12.5%.

The probabilities are not the same.

Since the probabilities are not the same, the probability of being in band is affected by whether or not the student is in choir.  So the events are not independent.

7 0
3 years ago
Someone please help me!
RideAnS [48]
For this case what you should do is evaluate values of x in the function and verify that they meet the result of f (x) shown in the graph.
 The answer is
 f (x) = - 2lxl +1
 notice that
 f (1) = - 2l1l + 1 = -1
 f (-1) = - 2l-1l + 1 = -1
 Both comply with the value of f (x) shown in the graph
 answer
 f (x) = - 2lxl +1
4 0
4 years ago
Pls HELP I don’t understand :,(
White raven [17]
I have no clue what the answer is
3 0
3 years ago
Ebony is building a shelf to hold the two boxes showed what is the least with she should make the shelf the boxes are 4/5 feet t
Alona [7]

Answer:

  4/5 ft

Step-by-step explanation:

Assuming both boxes need to fit completely on the shelf, Ebony should make it as wide as the largest of the boxes.

In decimal, 4/5 = 0.80 and 3/4 = 0.75, so 4/5 > 3/4.

The shelf should be 4/5 ft wide.

5 0
3 years ago
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