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4 years ago

Math help please ♡ give points

Mathematics

1 answer:

Anna71 [15]4 years ago

8 0

Tgerebare many properties of logarithms that are useful for simplifying and solving such as e^ln(x)=x, alog(x)=log(x^a), addition and subtraction rules (log(x)-log(x^2)=log(x/x^2)).

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Help mememememememmee

EastWind [94]

Answer:

1/4 inch

Step-by-step explanation:

Multiply 1x1 to find the area

Divide by 4 to get 1/4.

Multiply 1/2 x 1/2 to get the same answer

7 0

3 years ago

Write two inequalities that would have the solution set as graphed below.

Komok [63]

Answer:

The answer is x > -1

Step-by-step explanation:

This is because if it were a closed circle, it would have to the include the inequality -1 but since it is an opened circle, that inequality is not included. So in conclusion, Any number could be used to represent x as long as it is a greater number than -1. I hope this makes sense.

7 0

3 years ago

A car company took a random sample of 85 people and asked them whether they have a plan to purchanse an electrinic car in the ne

lutik1710 [3]

Answer:

We have 96% of confidence that the true proportion of people who responded that they have a plan to buy one electric car is between (0.121 and 0.303).

Step-by-step explanation:

For this case the estimated proportion of people who responded that they have a plan to buy one electric car is given by:

$\hat p = \frac{X}{n}= \frac{18}{85}=0.212$

Where X represent the number of people who responded that they have a plan to buy one and n represent the sample size selected

We know that the confidence level for this case is 96% of confidence, then our significance level would be $\alpha=1-0.96=0.04$ and $\alpha/2 =0.02$ . And the critical value would be:

$z_{\alpha/2}=-2.05, z_{1-\alpha/2}=2.05$

The confidence interval for the true proportion is given by this expression:

$\hat p \pm z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$

Replacing the data given we got:

$0.212 - 2.05\sqrt{\frac{0.212(1-0.212)}{85}}=0.121$

$0.212 + 2.05\sqrt{\frac{0.212(1-0.212)}{85}}=0.303$

We have 96% of confidence that the true proportion of people who responded that they have a plan to buy one electric car is between (0.121 and 0.303).

6 0

4 years ago

Find the area for this pls

Anit [1.1K]

Answer:

3,36 in^2

Step-by-step explanation:

The geometric shape shown in image is called a trapezoid

to calculate the area of a trapezoid we use the following formula:

1/2*(a+b)*h (a and b are bases, h: height)

bases are 1.3 and 3.5 and height is 1.4

1/2(1.3 + 3.5)*(1.4) = 3,36 the area is stated in square units so the answer is

3,36 in^2

6 0

2 years ago

Choose Yes or No to tell if the fraction 3/5 will make each equation true.

Vinvika [58]

Yes
no
no
yes
i hope it helped.

4 0

3 years ago

Read 2 more answers

Math help please ♡ give points​

Math help please ♡ give points