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antiseptic1488 [7]
3 years ago
14

A diver descended 20 feet in 5 seconds. What is the average rate per second that he traveled? Explain how you can use integer ti

les to solve the problem and find the answer.
Mathematics
2 answers:
yaroslaw [1]3 years ago
4 0
Just divide the two numbers which is really simple
Vesna [10]3 years ago
3 0

Answer:

The diver is moving down, so he moved −20 feet. Start with 20 negative tiles and separate them into 5 equal groups. There are 4 negative tiles in each group, so he traveled at a rate of −4 feet per second.

Step-by-step explanation:

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Answer:

I have made it in above picture hope it helps

8 0
3 years ago
Read 2 more answers
The amount of money Chaz earned for walking dogs is given in the table. Can the relationship be described by a constant rate? Ex
mojhsa [17]

Answer:

Yes, the relationship can be described by a constant rate of $18.75 per dog

Step-by-step explanation:

see the attached figure to better understand the problem

Let

x ----> the number of dogs

y ---> the amount of money earned

we have the points

(6,112,50), (8,150), (11,206.25)

step 1

Find the slope with the first and second point

(6,112,50), (8,150)

m=(150-112.50)/(8-6)=18.75

step 2

Find the slope with the first and third point

(6,112,50), (11,206.25)

m=(206.25-112.50)/(11-6)=18.75

Compare the slopes

The slopes are the same

That means, that the three points lies on the same line

therefore

Yes, the relationship can be described by a constant rate of $18.75 per dog

7 0
3 years ago
Find a quadratic equation with roots -1, 4i and -1 - 4i
vazorg [7]
\bf \textit{difference of squares}
\\\\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)
\\\\\\
\textit{also recall that }i^2=-1\\\\
-------------------------------\\\\
\begin{cases}
x=-1+4i\implies &x+1-4i=0\\
x=-1-4i\implies &x+1+4i=0
\end{cases}
\\\\\\
(x+1-4i)(x+1+4i)=\stackrel{y}{0}
\\\\\\\
[(x+1)~~-~~(4i)][(x+1)~~+~~(4i)]=y
\\\\\\\
[(x+1)^2~~-~~(4i)^2]=0\implies (x^2+2x+1)~-~(4^2i^2)=y
\\\\\\
(x^2+2x+1)~-~(16\cdot -1)=y\implies (x^2+2x+1)~-~(-16)=y
\\\\\\
x^2+2x+1~~+16=y\implies x^2+2x+17=y
3 0
3 years ago
Last week, Delon ran a total of 32 miles. This week, he increased his running distance by 6.4 miles. By what percentage did he i
LekaFEV [45]

Answer:

Step-by-step explanation:

\frac{6.4}{32}*100=\frac{640}{32}\\\\=20

=20%

7 0
3 years ago
Find diameter of a circle with a circumference of 17 inches
Debora [2.8K]

Answer:

5.41127

Step-by-step explanation:

The formula we use is d=c/π.

3 0
3 years ago
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