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Allushta [10]
2 years ago
11

INDEPENDENT PRACTICE

Mathematics
1 answer:
nydimaria [60]2 years ago
8 0
1. False
2. True
3. True
4. True
5. False
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Add brackets to make this statement correct.. 12 - 2 x 3 + 1 = 4
Talja [164]

Answer:

12 - (2 \times 3) + 1 = 4

3 0
3 years ago
Read 2 more answers
Need help, please explain the answer
stellarik [79]

Answer:

7 - x meters

Step-by-step explanation:

This is a difference of squares. The formula for difference of squares is

a^2-b^2 = (a-b)(a+b)

So plug the numbers we know into this formula.

Area = lw

49 - x^2 = (a-b)(7+x)

49 - x^2 = (7-x)(7+x)

<u>The length is 7 - x meters.</u>

7 0
4 years ago
In Exercises 1–4, use these results from a USA Today survey in which 510 people chose to respond to this question that was poste
Alexus [3.1K]

Answer:

The proportion of the population believes that passwords should be replaced with biometric security is not more than 50%.

Step-by-step explanation:

In this case we need to test the claim that more than half of the population believes that passwords should be replaced with biometric security.

Assume that the significance level of the test is, <em>α</em> = 0.05.

The hypothesis can be defined as follows:  

<em>H</em>₀: The proportion of the population believes that passwords should be replaced with biometric security is 50%, i.e. <em>p</em> = 0.50.  

<em>Hₐ</em>: The proportion of the population believes that passwords should be replaced with biometric security is more than 50%, i.e. <em>p</em> > 0.50.  

The information provided is:

n = 510\\\hat p=0.53

Compute the test statistic value as follows:

 z=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}

    =\frac{0.53-0.50}{\sqrt{\frac{0.50(1-0.50)}{510}}}\\\\=1.354991\\\\\approx 1.35

The test statistic value is 1.35.

The decision rule is:

The null hypothesis will be rejected if the p-value of the test is less than the significance level.

Compute the p-value as follows:

 p-value=P(Z>1.35)

                 =1-P(Z

<em>p</em>-value = 0.088 > <em>α</em> = 0.05.

The null hypothesis will not be rejected at 5% significance level.

Thus, there is not enough evidence to support the claim.

Conclusion:

The proportion of the population believes that passwords should be replaced with biometric security is not more than 50%.

7 0
3 years ago
There are 60 minutes in an hour. The total number of minutes is a function of the number of hours, as shown in the table. Does t
mario62 [17]
The first one I think because a linear function is always going to have a constant rate of change in one direction going straight up
3 0
3 years ago
Read 2 more answers
Rewrite the equation in standard form y = - 3/4 x - 6
notka56 [123]

Answer:

Step-by-step explanation:

y =\dfrac{-3}{4}x -6

Multiply the entire equation by 4,

4*y=\dfrac{-3}{4}x*4 - 6*4\\

4y = -3x - 24

Add 3x to both sides

3x + 4y = -24

Add 24 to both sides

3x + 4y + 24 = 0

6 0
3 years ago
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