3 years ago

Please help me with some of the questions

1 answer:

NikAS [45]3 years ago

5 0

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aleksley [76]

$A(-5;\ 2);\ B(-9;\ 9)\\\\|AB|=\sqrt{(-9-(-5))^2+(9-2)^2}=\sqrt{(-4)^2+7^2}=\sqrt{16+49}\\\\=\sqrt{65}\approx8\ (units)$

3 0

3 years ago

Romashka [77]

The answer would be $24.55 per oz of gold alloy so rounded up would be $25

6 0

3 years ago

Naddika [18.5K]

Answer:

The null hypothesis is $H_0: p \leq x$ , in which x is the proportion tested.

The alternative hypothesis is $H_1: p > x$

Step-by-step explanation:

A recent article in a university newspaper claimed that the proportion of students who commute more than miles to school is no more than x.

This means that at the null hypothesis, we test if the proportion is of at most x, that is:

$H_0: p \leq x$

Suppose that we suspect otherwise and carry out a hypothesis test.

The opposite of at most x is more than x, so the alternative hypothesis is:

$H_1: p > x$

4 0

2 years ago

ss7ja [257]

Answer:

The answer is either a, b, c, or d.

Step-by-step explanation:

I just chose all answers because i didn't feel like doing more work.

6 0

3 years ago

kupik [55]

-5+1+-2+9v+-5v

-3+1+4v

-2+4v

5 0

3 years ago