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2 years ago

I gotta stop using this websites( i need help)

Mathematics

1 answer:

erastovalidia [21]2 years ago

7 0

Answer:

V:100.8

SA:111

Step-by-step explanation:

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5. Evaluate the quadratic function f(x) = 5(x-3)(x-2) when x = 9

tatyana61 [14]

Answer:

Step-by-step explanation:

f(9)=5(9-3)(9-2)

=5*6*7

=210

7 0

3 years ago

Read 2 more answers

Consider the null hypothesis, H0: µ = 4,000, at the 1% level of significance. If the z-test statistic is calculated to be 6.00,

kow [346]

Answer:

Option B) Reject null hypothesis

Step-by-step explanation:

We are given the following in the question:

We are given the null hypothesis:

$H_0 = 4,000$

$\alpha = 0.01$

$z_{stat} = 6.00$

Two tailed z-test

Now, $z_{critical} \text{ at 0.01 level of significance } = \pm 2.58$

Since,

The calculated z-statistic does not lie in the acceptance region, we fail to accept and reject the null hypothesis.

Left-tailed z-test

Now, $z_{critical} \text{ at 0.01 level of significance } = -2.58$

Since,

$z_{stat} > z_{critical}$

We fail to accept and reject the null hypothesis.

Right-tailed z-test

Now, $z_{critical} \text{ at 0.01 level of significance } = 2.58$

Since,

$z_{stat} > z_{critical}$

We fail to accept and reject the null hypothesis.

7 0

3 years ago

Who was the first person to prove the pythagorean theorem?

sergeinik [125]

Pythagoras & his colleagues

3 0

3 years ago

Read 2 more answers

Show all work to solve 3x2 - 5x – 2 = 0.

lianna [129]

Answer:

$3x\cdot \:2-5x-2=0$

$6x-5x-2=0$

$6x-5x=x$

$x-2=0$

$x-2+2=0+2$

$x=2$

$-----------$

Hope it helps..

Have a great day!!

3 0

3 years ago

Read 2 more answers

I’m lost not understanding

bogdanovich [222]

First you are want to think of what two numbers will give you 72. It gives you 6, so you need to think of 6 times what will give you 72 (which is 12). Next you want to break down the 12, and you do the exact same thing you did with the 72. It gives you the number 3 so you need to find out 3 times what equals 12 (which is 4). Then you break down the 4 the same way. You have to do that to the 6 as well.
You continue to break down numbers until you can’t anymore.

5 0

3 years ago