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3 years ago

What is the absolute value of 2.3

Mathematics

1 answer:

Hoochie [10]3 years ago

8 0

<h3>Answer: 2.3</h3>

The absolute value of any positive number is that number itself.

If you take the absolute value of a negative number, then just erase the negative sign and you have your answer.

The absolute value is never negative. It represents distance from that value to 0 on the number line.

So saying |2.3| = 2.3 means the number 2.3 is exactly 2.3 units away from 0 on the number line.

Another example would be |-7| = 7 showing that from 0 to -7 is 7 spaces.

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Solve: 2 3/4 −(−1 1/2 )+(− 5/6 )−(− 3/8)−(+4 2/3 ) PLS HELP!

neonofarm [45]

Answer: -7/8

Step-by-step explanation:

you need to find a common denominator for all of them

in this case it would be 24

2 18/24 -(- 1 12/24) + (-20/24) -(-9/24) - (+ 4 16/24)

2 18/24 + 1 12/24 - 20/24 + 9/24 - 4 16/24

4 6/24 - 20/24 + 9/24 - 4 16/24

3 10/24 + 9/24 - 4 16/24

3 19/24 - 4 16/24

- 21/24

-7/8

3 0

3 years ago

Read 2 more answers

Help me out big bois

BaLLatris [955]

It’s 78-45 to get the new season

8 0

3 years ago

How much will two points cost on a $175,000 mortgage?

Triss [41]

43 $3500.00

because you must calculate $175,000.00*.02 so when that is multiplied it equalos $3500.00

8 0

3 years ago

What is the third side

ASHA 777 [7]

Answer:

A. 2.82 m

Step-by-step explanation:

The missing side we are trying to find is the hypotenuse, this is because it is the longest side of a right triangle.

The Pythagorean Theorem is used:

$a^2+b^2=c^2$

Plug in the given numbers (2), accordingly:

$2^2+2^2=c^2\\4+4=c^2\\8 = c^2\\$

Take the square root of both sides:

$\sqrt{8} =\sqrt{c^2}$

2.82 ≈ c

5 0

3 years ago

Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.2 significance level. The

sattari [20]

Answer:

C. H0 : p = 0.8 H 1 : p ≠ 0.8

The test is:_____.

c. two-tailed

The test statistic is:______p ± z (base alpha by 2) $\sqrt{\frac{pq}{n} }$

The p-value is:_____. 0.09887

Based on this we:_____.

B. Reject the null hypothesis.

Step-by-step explanation:

We formulate null and alternative hypotheses as proportion of people who own cats is significantly different than 80%.

H0 : p = 0.8 H 1 : p ≠ 0.8

The alternative hypothesis H1 is that the 80% of the proportion is different and null hypothesis is , it is same.

For a two tailed test for significance level = 0.2 we have critical value ± 1.28.

We have alpha equal to 0.2 for a two tailed test . We divided alpha with 2 to get the answer for a two tailed test. When divided by two it gives 0.1 and the corresponding value is ± 1.28

The test statistic is

p ± z (base alpha by 2) $\sqrt{\frac{pq}{n} }$

Where p = 0.8 , q = 1-p= 1-0.8= 0.2

n= 200

Putting the values

0.8 ± 1.28 $\sqrt{\frac{0.8*0.2}{200} }$

0.8 ± 0.03620

0.8362, 0.7638

As the calculated value of z lies within the critical region we reject the null hypothesis.

8 0

3 years ago