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3 years ago

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Determinar la longitud de la hipotenusa del siguiente triángulo si se conocen las medidas que se indican de los demás triángulos

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1 answer:

Zina [86]3 years ago

3 0

it helps a lot in math us it won't let me do it

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31 gallons of gas cost $82.15. What is the unit rate for 1 gallon of gas ?

alexgriva [62]

Divide total price by gallons:

82.15 / 31 = 2.65 for 1 gallon

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3 years ago

If you invest $5000 in an account 10 years at a 3% interest rate, how much money will you have?

Tanya [424]

I=prt..... i=5000*10*0.03=1500 5000+1500=6500

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3 years ago

If you were to deposit $1,000 into an account that paid 10 percent interest compounded semiannually, how much money would you ha

dexar [7]

Semiannual means there will be two total periods in a year. Divide ten percent by two to get the interest rate per period. Then multiple by 1+i twice

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2 years ago

What is the equation of the line that passes through the points (4/5,1/5) and (1/2,3/2)?

Setler [38]

Answer:

$y-\frac{3}{2}=\frac{-13}{3}(x-\frac{1}{2})$ point-slope form

$13x+3y=11$ (standard form)

Let me know if you prefer another form.

Step-by-step explanation:

The slope of a line can be found using $\frac{y_2-y_1}{x_2-x_1}$ provided you are given two points on the line.

We are.

Now you can use that formula. But I really love to just line up the points vertically then subtract them vertically then put 2nd difference over 1st difference.

(4/5 , 1/5)

-( 1/2 , 3/2)

-----------------

3/10 -13/10

2nd/1st = $\frac{\frac{-13}{10}}{\frac{3}{10}}=\frac{-13}{3}$ is our slope.

So the following is point-slope form for a linear equaiton:

$y-y_1=m(x-x_1) \text{ where } m \text{ is slope and } (x_1,y_1) \text{ is a point on the line }$

Plug in a point $(x_1,y_1)=(\frac{1}{2},\frac{3}{2}) \text{ and } m=\frac{-13}{3}$ .

This gives:

$y-\frac{3}{2}=\frac{-13}{3}(x-\frac{1}{2})$

I'm going to distribute:

$y-\frac{3}{2}=\frac{-13}{3}x-\frac{-13}{6}$

Now I don't like these fractions so I'm going to multiply both sides by the least common multiply of 2,3, and 6 which is 6:

$6y-9=-26x+13$

Add 26x on both sides:

$26x+6y-9=13$

Add 9 on both sides:

$26x+6y=22$ This is actually standard form of a line.

It can be simplified though.

Divide both sides by 2:

$13x+3y=11$ (standard form)

7 0

3 years ago

Read 2 more answers

Which of the following measures of variability can be used to compare two data sets? Select all that apply.3 Answers PLZ FAST AS

Ksenya-84 [330]

A B D I’m pretty sure. Median is 3 or more and range just doesn’t make sense for 2 numbers

8 0

3 years ago

Read 2 more answers