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4 years ago

Please help me it’s due today I appreciate your help so much you are the best

Mathematics

2 answers:

erma4kov [3.2K]4 years ago

7 0

Answer:

Radical 77

Step-by-step explanation:

2^2+b^2=9^2

Solve and you get radical 77

Vaselesa [24]4 years ago

7 0

Answer:

√77

Step-by-step explanation:

The Pythagorean theorem is used for this. It tells you the sum of the squares of the leg lengths is the square of the hypotenuse.

If x represents the unknown side, then ...

2² +x² = 9²

x² = 81 -4 = 77 . . . . subtract 4

x = √77 . . . . . . . . . . take the square root

The exact length of the third side is √77.

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Can anyone help me solve 23, 24?

zimovet [89]

Answer:

Problem 23) $y=3x+6$

Problem 24) $y=-\frac{1}{3}x-5$

Step-by-step explanation:

step 1

Find the slope of the given line

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(0,2)\ B(3,1)$

Substitute the values

$m=\frac{1-2}{3-0}$

$m=-\frac{1}{3}$

step 2

Problem 23

we know that

If two lines are perpendicular then the product of its slopes is equal to minus 1

$m1*m2=-1$

Find the slope of the line

we have

$m1=-\frac{1}{3}$

substitute in the equation and solve for m2

$(-\frac{1}{3})*m2=-1$

$m2=3$

with the slope m2 and the point $(0,6)$ find the equation of the line

Remember that

The equation of the line in slope intercept form is equal to

$y=mx+b$

we have

$m=3$

$b=6$ -----> the given point is the y-intercept

substitute

$y=3x+6$

step 3

Problem 24

we know that

If two lines are parallel, then its slopes are the same

with the slope m1 and the point $(0,-5)$ find the equation of the line

The equation of the line in slope intercept form is equal to

$y=mx+b$

we have

$m=-\frac{1}{3}$

$b=-5$ -----> the given point is the y-intercept

substitute

$y=-\frac{1}{3}x-5$

8 0

4 years ago

804.25 CM ROUNDED TO THE NEAREST HUNDRETH

Y_Kistochka [10]

It is 804.25

2 is in the tenths place and then 5 is hundredths place

4 0

3 years ago

Read 2 more answers

What is the solution for the system of equations?

taurus [48]

Rearrange the first equation2x + y = 20take away 2x from both sidesy = 20 - 2x substitute this y value into the second equation6x - 5(20 - 2x) = 126x -100 +10x = 12add 100 to both sides6x + 10x = 11216x = 112divide both sides by 16 x = 7Substitute this x value into the first equation to get y.2(7) + y = 2014 + y = 20take away 14 from both sidesy = 6
So, y = 6 and x = 7

7 0

4 years ago

Hank's pickup can travel 72 miles on 4 gallons of gas. How many gallons will Hank's pickup need to travel 54 miles?

Ira Lisetskai [31]

Answer:

3 gallons of gas

Step-by-step explanation:

First we need to create the ratio to build our answer off of.

This ratio would be 72:4, meaning 72 miles for every 4 gallons.

We can divide 72 by 4 to find the unit rate.

72 / 4 = 18

So, the unit rate is 18 miles for every 1 gallon.

Next we need to figure out how may gallons are needed to travel 54 miles.

We can divide 54 by 18 to receive 3.

This means that our ratio needed to answer the question is 3 times the unit rate.

Our new ratio is now: 54:m, m meaning miles.

To find the amount of miles, multiply the 3 we used later, to make this ratio 3 times the unit rate.

So, our final ratio is 54:3,

meaning that Hank will have used 3 gallons of gas after traveling 54 miles.

5 0

3 years ago

Which are examples of results of good credit? Check all that apply.

bulgar [2K]

A bank gives you the lowest interest rate for a personal loan

You find it easy to borrow money when you need it

5 0

3 years ago

Read 2 more answers