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3 years ago

Please Help & Thank You

Mathematics

1 answer:

makkiz [27]3 years ago

4 0

Answer:

67 $\frac{1}{2}$ $cm^3$

Step-by-step explanation:

the volume of a rectangular prism is the three sides multiplied together, $h*w*l$

converting the mixed number to improper fraction to make multiplying easier.

$\frac{9}{2} *6*\frac{5}{2}$ = $\frac{135}{2}$

converting back to mixed number in simplest form

$\frac{135}{2}$ = 67 R 1

$\frac{135}{2}$ = 67 $\frac{1}{2}$

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In the proportion x/5= 15/3 which number is equal to x in the proportion?

Ksivusya [100]

Answer:
x = 25
Step-by-step explanation:
We are given a word phrase:
In the proportion x over 5 equals 15 over 3 , which number is equal to x in the proportion?
So we will translate it to make it easier to solve.
Proportion x over 5 --->
equals ---> =
15 over 3 --->
Combining them, we get:

Solving this for x using cross multiplication:

6 0

3 years ago

X y

Darina [25.2K]

Answer:

Part 1) The rate of change is $\frac{17}{15}$

Part 2) The initial value is 68

Part 3) The function rule to the linear model is $y=\frac{17}{15}x+68$

Step-by-step explanation:

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope or unit rate

b is the y-intercept or initial value

step 1

Find the slope

take two points from the table

(0,68) and (15,85)

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

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

substitute the values

$m=\frac{85-68}{15-0}$

$m=\frac{17}{15}$

In a linear function , the slope is the same that the rate of change

therefore

The rate of change is $\frac{17}{15}$

step 2

Find the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

Looking at the table

For x=0, y=68

therefore

The y-intercept is

$b=68$

The y-intercept is also called the initial value

therefore

The initial value is 68

step 3

Determine the function rule to the linear model

$y=mx+b$

we have

$m=\frac{17}{15}$

$b=68$

substitute

$y=\frac{17}{15}x+68$

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3 years ago

The distance traveled by a falling object is modeled by the equation below, where s is the distance fallen, g is gravity, and t

iren [92.7K]

Answer:

meters per seconds squared

Step-by-step explanation:

seconds squared cancel out and you're leftvwith just meters when

meters/seconds squared is multiplied with the seconds squared in t^2

g means gravity and

gravity is 9.8 meters per second squared

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2 years ago

Need help plz and thnks

Serjik [45]

Answer: y=13

hope this helps!

3 0

3 years ago

I need help with this question

goldenfox [79]

Take a picture of your work and send it so I can help you

3 0

3 years ago