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3 years ago

What value of x will make the equation below true? −x=4

Mathematics

1 answer:

likoan [24]3 years ago

6 0

X=-4
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What is the volume of this pyramid ,rounded to the nearest tenth ?

prohojiy [21]

It is a) 6.5 because the formula is lwh/3 and the length and width are both 2 and the height is rt24 because 25-1 is 24 (Pythagorean Theorem) and so when you solve, you get about 6.53 and that rounds to 6.5

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4 years ago

What am i doing wrong here or am i missing something??

Alja [10]

The answer is 7 instead of 5

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3 years ago

You have heard that customers will try a new caterer if the price is 20% below their existing caterer. Your competitor prices a

Evgesh-ka [11]

Answer:

b) $640

Step-by-step explanation:

Competitor's price = $800

Price, 20% below of competitor's:

$800 - 20% =
$800*(100-20)/100 =
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Correct answer choice is b) $640

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3 years ago

A tire manufacturer is interested in testing the fuel economy for two different tread patterns. Tires of each tread type are dri

Minchanka [31]

Using the t-distribution, it is found that the 99% confidence interval for the difference is (0.058, 3.462).

We are given the standard deviation for the samples, hence, the t-distribution is used to solve this question.

The standard errors are given by:

$s_A = \frac{1.79}{\sqrt{18}} = 0.4219$

$s_B = \frac{1.95}{\sqrt{18}} = 0.4596$

For the distribution of differences, the mean and the standard error are given by:

$\overline{x} = \mu_A - \mu_B = 23.95 - 22.19 = 1.76$

$s = \sqrt{0.4219^2 + 0.4596^2} = 0.6239$

The interval is given by:

$\overline{x} \pm ts$

The critical value for a two-tailed 99% confidence interval with 18 + 18 - 2 = 34 df is t = 2.7284.

Then:

$\overline{x} - ts = 1.76 - 2.7284(0.6239) = 0.058$

$\overline{x} + ts = 1.76 + 2.7284(0.6239) = 3.462$

The 99% confidence interval for the difference is (0.058, 3.462).

For more on the t-distribution, you can check brainly.com/question/16162795

3 0

3 years ago

I NEED HELP ASAP!!! please show work

katen-ka-za [31]

What’s ur problem???????

3 0

3 years ago