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4 years ago

Anybody know the answer?

Mathematics

2 answers:

Anna71 [15]4 years ago

4 0

Hope This helps you..!!!!

Marta_Voda [28]4 years ago

3 0

Use the Pythagorean theorem:

$x^2+8^2=10^2\\\\x^2+64=100\ \ \ \ |-64\\\\x^2=36\to x=\sqrt{36}\\\\\boxed{x=6}$

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item is mainly priced at $80. It is now priced at a discount 60% off the regular price. What is the price now ?

Triss [41]

The price would be 32

7 0

4 years ago

Read 2 more answers

The average gasoline price of one of the major oil companies in Europe has been $1.25 per liter. Recently, the company has under

Ann [662]

Answer:

$t=\frac{1.20-1.25}{\frac{0.14}{\sqrt{49}}}=-2.50$

Step-by-step explanation:

Data given and notation

$\bar X=1.20$ represent the sample mean given

$\sigma = 0.14$ represent the population standard deviation

$n=49$ sample size

$\mu_o =1.25$ represent the value that we want to test

t would represent the statistic (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the true mean for the gasoline prices is lower than 1.25, the system of hypothesis would be:

Null hypothesis: $\mu \geq 1.25$

Alternative hypothesis: $\mu < 1.25$

If we analyze the size for the sample is > 30 but we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Calculate the statistic

We can replace in formula (1) the info given like this:

$t=\frac{1.20-1.25}{\frac{0.14}{\sqrt{49}}}=-2.50$

5 0

3 years ago

Can someone help with my homework ?

horsena [70]

Let's work backwards. The 2001 team won 29 games. They won 2 more games than the 2000s team, 29-2=27. The 200s team won 27 games. The 2000 team won 27 games, and they won 3 more than the 1999 team. 27-3 = 24.

The 1999 team won 24 games.

8 0

4 years ago

Read 2 more answers

15 x20 hellllpppppppppppppp

Neporo4naja [7]

Answer:

300

Step-by-step explanation:

15 x 20 = 300

This can be easily solved on a calculator.

8 0

3 years ago