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3 years ago

If u guys answer this one ill give away free p

Mathematics

1 answer:

yawa3891 [41]3 years ago

3 0

Answer:

$\frac{50}{7}$

Step-by-step explanation:

Swap the fraction,

$5 *\frac{10}{7} = \frac{50}{7}$

or around 7.142...

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The equation of the line that goes through the point (1,5) and is parallel to the line 3x+5y=2 can be written in the form y=Mx+b

Llana [10]

Answer:

$y=-\frac{3}{5}x+\frac{28}{5}$

Step-by-step explanation:

step 1

Find the slope of the given line

we have

$3x+5y=2$

isolate the variable y

$5y=-3x+2\\\\y=-\frac{3}{5}x+\frac{2}{5}$

The slope of the given line is

$m=-\frac{3}{5}$

step 2

Find the equation of the line that goes through the point (1,5) and is parallel to the given line

Remember that

If two lines are parallel then their slopes are equal

therefore

we have

$m=-\frac{3}{5}$

$point\ (1,5)$

substitute in the equation of a line in slope intercept form

$y=mx+b$

$5=-\frac{3}{5}(1)+b$

solve for b

$b=5+\frac{3}{5}\\\\b=\frac{28}{5}$

substitute

$y=-\frac{3}{5}x+\frac{28}{5}$

3 0

4 years ago

This is algebra 2 it’s growth & decay. I need help

Elodia [21]

So firstly, remember that the <em>a variable is the initial value.</em> Since we start off with 6.08 billion, <u>6.08 billion is the a variable.</u>

Next, since this is a <em>growth by 1.26%</em>, add 1 and 0.0126 (1.26% in decimal form) together to get 1.0126. <u>1.0126 is the b variable.</u>

Putting it together, <u>the function is $A(t)=6.08(1.0126)^t$ </u>

Since 2020 is 20 years from 2000, plug in 20 into the t variable of the prior function to solve:

$A(20)=6.08(1.0126)^{20}\\ A(20)=7.81$

In context, <u>in 2020 the population will be 7.81 billion.</u>

6 0

4 years ago

Find the inverse of the function. f(x) = the cube root of quantity x divided by eight. - 4

Lapatulllka [165]

$\bf f(x)=y=\sqrt[3]{\cfrac{x}{8}}-4\impliedby \textit{first, let's switch the variables about}
\\\\\\
\underline{x}=\sqrt[3]{\cfrac{\underline{y}}{8}}-4\implies x+4=\sqrt[3]{\cfrac{\underline{y}}{8}}\implies (x+4)^3=\cfrac{y}{8}
\\\\\\
\boxed{8(x+4)^3=y}\impliedby f^{-1}(x)$

7 0

3 years ago

Read 2 more answers

Suppose you randomly guess on every question of a 20 question True/False test. Let x = number of questions that you answer corre

castortr0y [4]

Answer:

18.14% probability that you would get at least 12 questions correct.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 10, \sigma = 2.2$