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ZanzabumX [31]
3 years ago
12

Alisha and brianna are working on more magic number puzzles. Again, the puzzles have the same steps,but alisha and brianna come

up with different results. The girlswork for each puzzle is shown side-by-side. For each set of puzzles, tell whose result is correct and explain why that result is correct.
Mathematics
1 answer:
Hoochie [10]3 years ago
8 0
We need to see the puzzles in an attachment or something to answer this question
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A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a pers
Arturiano [62]

Answer:

A person who watches 8.5 hours of TV can do 30.4 sit ups.

Step-by-step explanation:

The regression equation is used to predict or estimate the value of the response (or dependent) variables using the information about the explanatory (or predictor) variables.

The general form of a regression equation is:

y=ax+b

Here,

<em>y</em> = dependent variable

<em>x</em> = independent variable

<em>a</em> = intercept

<em>b</em> = slope

The regression equation representing the relationship between hours of TV watched per day (<em>x</em>) and number of sit ups a person can do (<em>y</em>) is:

y=-0.74x+36.359

Compute the number of sit ups a person who watches 8.5 hours of TV can do as follows:

y=-0.74x+36.359

  =(-0.74\times 8.5)+36.359\\=-6.29+36.659\\=30.369\\\approx 30.4

Thus, a person who watches 8.5 hours of TV can do 30.4 sit ups.

6 0
3 years ago
Determine the model that best describes the data and then write an equation for the function that models the data.
zhannawk [14.2K]

Answer:

  s = 4·3^t

Step-by-step explanation:

After the first term, each term in the sequence is 3 times the previous one. This is a description of a geometric sequence. Here, the first term is 4, so the general term is ...

  an = 4·3^n . . . . for n counting from 0

We can name the function "s" for "speed" and use "t" for the time in seconds. Then the equation is ...

  s = 4·3^t

4 0
3 years ago
At one point in a Girl Scout cookie sales drive, region C had sold 1500 boxes of cookies, and region D had sold 1200 boxes of co
juin [17]

Answer:

a)After 6 days region D will catch region C

b) Region C will sell 13500 cookies and region D will sell 13600 cookies

Step-by-step explanation:

a) Cookies sold by region C more than region D= 1500-1200=300

But region D can sells 50 cookies every day i-e

50 cookies = 1 day

==> 1 cookie= 1÷50

==> 300cookies = 300÷50=6 days

So, after 6 days region D will catch up region C's

b) If sale stopped after 8 days;

Then sale of region C for 8 days = 1500×8=12000 cookies

so , total cookies sold = 1500 +12000=13500

For region D;

Before catching up region C cookies sold by region D = 1200

Till catching up region C - region D had also sold 1500 cookies,

and for 50 extra cookies than region C

next 8 days region D will sale =(1500+50)×8=1550×8=12400 cookies

So, total number of cookies sold by region D = 1200+12400=13600

3 0
3 years ago
89. If x, y, and z are numbers such that xy + xz = 100, what is the value of x/5 (3y + 3z) + 10?
Hunter-Best [27]
Hello,

xy+xz=100==>x(y+z)=100
x/5*(3y+3z)+10=3/5*(x(y+z))+10=3/5*100+10=70

Answer C
3 0
3 years ago
Find one value of x for which f(2) &amp; f(x)=4
igomit [66]
The first thing we must do for this case is to observe the value of the y coordinate for a given value of the x coordinate.
 We have then:
 f (x) = - 4: occurs when x = 0 
 On the other hand, for x = 2 we have:
 f (2) = - 2
 Answer:
 f (x) = - 4: occurs when x = 0
 
f (2) = - 2
4 0
3 years ago
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