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4 years ago

Write an expression with a negative exponent that has a value between 0 and 1:2

Mathematics

1 answer:

Naddika [18.5K]4 years ago

7 0

Edit to reflect comments:

3^-1=1/3
4^-1=1/4

Flip the fraction over basically i.e. 4/1---->1/4

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What subjects together do more than half of the class like?

Arturiano [62]

Answer:

Math and Writing

Step-by-step explanation:

Well if we add up all the people we get (9 + 3 + 5 + 3 + 1) = 21. Half of that is 10.5 so the sum of the two subjects must be at least 11. The amount of people that like Math and Writing is 11 people so the two subjects that more than half the class like are Math and Writing.

4 0

2 years ago

Read 2 more answers

Elle placed a bucket under a leaky roof. The bucket was 310 full after 25 of an hour. How much water is leaking per hour?

kvasek [131]

Answer:

3/4 bucket

Step-by-step explanation:

Elle placed a bucket under a leaky roof. The bucket was 3/10 full after 2/5 of an hour. How much water is leaking per hour

Water leaking : time taken

Let x = amount of water leaking per hour

3/10 : 2/5 = x : 1

3/10 ÷ 2/5 = x / 1

3/10 × 5/2 = x / 1

15 / 20 = x / 1

Cross product

15 * 1 = 20 * x

15 = 20x

x = 15/20

= 3/4

3/4 bucket of water is leaking per hour

4 0

3 years ago

What is 5 perecnt of 15,948

nekit [7.7K]

Answer:

797.4

Step-by-step explanation:

Hope this Helps! :p

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3 years ago

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Julia used absolute value to find the distance between 0 and 6 on a number line. She then wrote a similar statement to represent

Schach [20]

Answer:

Absolute value function.

Step-by-step explanation:

The absolute value of a number helps us to calculate the distance between a number and zero, provided the direction does not play an important role.

The absolute value of a number can never be negative since it is the value of distance.

The absolute value function is defined as:

$\mid a \mid = a, a > 0\\~~~~~ = -a, a < 0$

So, it is correct to write the statement that distance between 0 and 6 is equal to distance between 0 and -6.

$\mid 6 \mid = 6\\\mid -6 \mid = -(-6) = 6$

6 0

3 years ago

For which values of a does ???? a a − 4<br> a + 4 a<br> ???? have an inverse matrix?

Aleks [24]

Answer:

A = $\dfrac{1}{16}\begin{bmatrix}a &-(a-4) \\ -(a+4) & a\end{bmatrix}$

Step-by-step explanation:

given,

Matrix =

A = $\begin{bmatrix}a &a-4 \\ a+4 & a\end{bmatrix}$

determinant of matrix

|A| = a×a - (a-4)(a+4)

|A| = a² - a² +16

|A| = 16

inverse of the matrix

to calculate inverse of two matrix interchange the term a₁₁ with a₂₂ and multiply the -ve with a₁₂ and a₂₁

the inverse is

A = $\dfrac{1}{16}\begin{bmatrix}a &-(a-4) \\ -(a+4) & a\end{bmatrix}$

6 0

3 years ago