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3 years ago

The slope of line A between (4, 8) and (0, 0) is 2. What is the slope of line A between (-2, -4) and (-4, -8)?

1 answer:

3 0

In order to find the slope of these points.. plug them in this formula y2-y1/x2-x1. so when we do we will get -8+4/-4+2. add and subtract and you will get -4/-2.. divide and you will get 2.. just so you know it had the same value because even if you choose a different number from the same line the slope will always stay the same

Hope this helps

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Answer these for me please pretty please

anzhelika [568]

Answer:

1. t = 48.654

2. $x = \frac{8}{3}$

3. $s = \frac{49}{4}$

4. $y = \frac{19}{12}$

Step-by-step explanation:

To solve equations using variables, perform inverse operations to undo each part and isolate the variable.

1. $\frac{t}{5.4} =9.01$

Multiply by 5.4 on both sides to undo division.

t = 9.01 * 5.4

t = 48.654

2. $\frac{3}{4}x = 2$

Multiply both sides by the reciprocal of 3/4 which is 4/3.

$x = 2*\frac{4}{3} \\x = \frac{8}{3}$

3. $s + \frac{1}{4} = 12\frac{1}{2}$

Convert 12 1/2 into an improper fraction.

$s + \frac{1}{4} = \frac{25}{2}$

Subtract 1/4 from both sides.

$s + \frac{1}{4} - \frac{1}{4} = \frac{25}{2} - \frac{1}{4}$

To subtract fractions without common denominators, convert 25/2 into a fraction with denominator of 4.

$s = \frac{50}{4} - \frac{1}{4}\\s = \frac{49}{4}$

4. $2\frac{2}{3} + y = 4 \frac{1}{4}$

Subtract 2 2/3 from both sides.

$2\frac{2}{3} - 2\frac{2}{3} + y = 4 \frac{1}{4}- 2\frac{2}{3}$

Convert each fraction into improper fractions and then to common denominators.

$y = \frac{17}{4} - \frac{8}{3}\\\\ y = \frac{51}{12} - \frac{32}{12} \\\\y = \frac{19}{12}$

6 0

4 years ago

A researcher is interested in knowing whether responses to lowering the legal age for drinking alcohol varies by gender. Which s

likoan [24]

The statistical test that would be most appropriate determine the answer the researcher is interest in knowing is a chi-square test.

<h3>What is a chi-square test?</h3>

A chi-square test is a statistical test used to test the relationship between categorical variables. It is used to determine the difference between the expected data and the observed data is due to chance.

Chi squared = $\frac{(O_{i} - E_{i} )^{2} }{E_{i} }$

Where:

$O_{i}$ = observed value
$E_{i}$ = expected value.

The researcher is interested in knowing if the response to lowering the legal age for drinking alochol (observed value)) varies by gender (expected value). Thus, a chi-square test would be used.

To learn more about chi-square, please check: brainly.com/question/14082240

8 0

2 years ago

A tailor cuts 378 yards from a roll of fabric to make one jacket. Which expression gives the number of jackets he can make from

USPshnik [31]

The expression that gives the number of Jackets that can be made from a fabric of 1634 yards will be found as follows:
let the number of jackets be x.
the total length of material required to make x jackets cannot exceed 1634 yards, it can be equal to or less than 1634. Thus, the expression will be given as follows:
amount required to make one jacket is 378,hence:
378x≤1634
x≤4.32275
approximating the above we get:
x≤4

6 0

3 years ago

Read 2 more answers

The sum of a number w and 3 is less than or equal to ten.

Zinaida [17]

<h2>Answer:</h2>

In this problem we must translate English words into Algebraic Expressions. So we have the following English words:

<em>The sum of a number w and 3 is less than or equal to ten</em>

<em />

So let's do that using two steps:

<h3>1. The sum of a number w and 3:</h3>

Here we have two numbers w and 3. So we must makes the sum these numbers, therefore: