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Ganezh [65]
3 years ago
5

Put the following equation of a line into slope-intercept form, simplifying all

Mathematics
2 answers:
Fudgin [204]3 years ago
5 0
4y=5x+4
Divid by 4 to make slop intercept form
Y=5/4y +1
Slop =5/4
yKpoI14uk [10]3 years ago
3 0

Answer:

\boxed {\boxed {\sf y= \frac{5}{4}x+1}}

Step-by-step explanation:

We are given the equation of a line and asked to put it into slope-intercept form.

Slope-intercept form is:

y=mx+b

Where:

  • m= slope
  • b= y-intercept

In order to put the equation into slope-intercept form, we have to isolate the variable y by performing the inverse operation.

5x-4y= -4

5x is being added to -4y. The inverse of addition is subtraction, so subtract 5x from both sides of the equation.

5x-5x-4y=-4-5x

-4y=-4-5x

The variable y is being multiplied by -4. The inverse of multiplication is division. Divide both sides of the equation by -4.

\frac {-4y}{-4}=\frac{-4-5x}{-4}

y= \frac{-4}{-4}+\frac{-5x}{-4}

y=1+\frac{5}{4}x

Rearrange the equation.

y= \frac{5}{4}x+1

The fractions are completely simplified, so this is our final answer.

The equation of the line in slope-intercept form is \bold {y= \frac{5}{4}x+1}}.

The slope is 5/4 and the y-intercept is 1.

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Select the correct answer.
nydimaria [60]

Answer:

It is CD

Step-by-step explanation:

because 300+200=500, juts times it by 3 and divide

5 0
2 years ago
Christa went shopping for back-to-school clothes. Before the tax was added on, her total was $176. If the sales tax is 6%, what
deff fn [24]

Answer:

$10.56

Step-by-step explanation:

Cross multiply and divide!

if the total cost is $176, multiply by the % of sales tax and divide by 100 (100%)

176 multiplied by 6% = 1,056

1,056 divided by 100% = $10.56

6 0
3 years ago
Evaluate each function at the given value <br> f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13 at n = - 2
DedPeter [7]

Answer:

  • 7

Step-by-step explanation:

<h3>Given</h3>
  • f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13
<h3>To find </h3>
  • f(-2)
<h3>Solution</h3>

<u>Substituting n with -2</u>

  • f(-2) =
  • (-2)^4 + 5(-2)^3 + 2(-2)^2 - 5(-2) + 13 =
  • 16 - 40 + 8 + 10 + 13 =
  • 7
3 0
3 years ago
According to a survey, 62% of murders committed last year were cleared by arrest or exceptional means. Fifty murde committed las
alexira [117]

Answer:

a) The probability that exactly 41 of the murders were cleared is 0.0013

b) The probability that between 36 and 38 of the murders, inclusive, were cleared is 0.0809.

c) Yes, it would be unusual

Step-by-step explanation:

Let p=62% considered as the probability of having a commited that is cleared by arres or exceptional means. We assume that choosing each of the 50 commited is independent of each choose. Then, let X be the number of cleared. In this case, X is distributed as a binomial random variable. Recall that, in this case,

P(X=k) = \binom{50}{k} p^{k}(1-p)^{50-k} for0\leq k \leq 50, with p=0.62

a) We have that

P(X=40) = \binom{50}{40} p^{40}(1-p)^{50-40} =0.001273487

b) We are asked for the following

P(36\leq X \leq 38) = P(X=36)+P(X=37)+P(X=38) = 0.080888936&#10; (The specific calculation is omitted.

c) We will check for the following probability P(X\leq 19)

P(X\leq 19 ) = \sum_{k=0}^{19} P(X=k) = 0.000499222&#10;

Given that the probability of this event is really close to 0, it would be unusual if less than 19 murders are cleared.

4 0
3 years ago
3y - x = 3<br> 2 ^ 3y -1 ^ x =2
aivan3 [116]
 rwgrwgfdgxczgfdgfgzafdga
5 0
3 years ago
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