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3 years ago

If a is a solution of abs(x+3)>4, then is a also a solution of x+3>4?

Mathematics

1 answer:

Alexandra [31]3 years ago

7 0

Answer:

Yes

Step-by-step explanation:

After solving for the two values of a, the second inequality gives a value inside the range of the first inequality.

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How much material is left as a fraction

Greeley [361]

2 and 5/6 i believe. you have to make the denominators the same.

6 0

3 years ago

Which expression is equivalent to 1/3b - 7?

olga55 [171]

Answer:

$\dfrac{1}{3}(b-21)$

Step-by-step explanation:

We need to find an equivalent expression for $\dfrac{1}{3}b-7$

The denominator of first fraction is 3 and that of other is 1.

$\dfrac{1}{3}b-7\\\\=\dfrac{b-21}{3}$

$=\dfrac{1}{3}(b-21)$

Hence, the equivalent expression is $\dfrac{1}{3}(b-21)$ .

3 0

2 years ago

Read 2 more answers

Out of 3000 students in a School of Public Health, 1500 students defined themselves regular dietary supplement users. If you tak

attashe74 [19]

Answer:

The standard error of the proportion is 0.112.

Step-by-step explanation:

The standard error of a proportion is given by the following formula:

$S = \sqrt{\frac{p(1-p)}{n}}$

In which p is the probability of a success and n is the length of the sample.

In this problem

A success is a student defining themselves regular dietary supplement users. Our of 3000 students, 1500 do. So $p = \frac{1500}{3000} = 0.5$ .

We take a sample of 20 of them, so $n = 20$ .

$S = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.5*0.5}{20}} = 0.112$

8 0

3 years ago

Evaluate this problem<br> 8²+18-2(6+2)÷4

ale4655 [162]

I hope this helps. Good Luck!

4 0

3 years ago

Read 2 more answers

(8x- 1) (11X - 25) (15y - 48)

Leona [35]

Answer:

1320x^2y−4224x^2−3165xy+10128x+375y−1200

Step-by-step explanation:

(8x−1)(11x−25)(15y−48)

=((8x−1)(11x−25))(15y+−48)

=((8x−1)(11x−25))(15y)+((8x−1)(11x−25))(−48)

=1320x2y−3165xy+375y−4224x2+10128x−1200

=1320x^2y−4224x^2−3165xy+10128x+375y−1200

3 0

2 years ago