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2 years ago

Which of the following is true about the expression below?

1 answer:

8 0

Answer:

The first one

Explanation:

9 and 1/4 are both rational numbers (which are numbers that can be represented in a fraction; 9 can be represented as 9/1)
And since it equals to 9/4 (or 2 1/4) the product is also a rational number.

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Exhibit 15-2A regression model between sales (y in $1000s), unit price (x1 in dollars) and television advertisement (x2 in dolla

Semmy [17]

Answer:

Sales are expected to increase positively.

Step-by-step explanation:

The model is y =7-3*X1+5*X2

Here, y is the depended variable and X1 and X2 are independent variable.

Holding the unit price constant X2 (television advertisement) is increase by $1 dollar

SSR= 3500

SSE=1500

So, TSS = SSR+SSE = (3500+1500) = 5000

Now r^2= 1 - (SSR/TSS) = 1 - (3,500/5,000) = 1 - 0.70 = 0.30

So, the sample correlation coefficient (r) = (0.3)^(1/2) = 0.547

We can conclude that sample correlation indicates a strong positive relationship.

7 0

3 years ago

Y=-2/3x+2 how to graph

Nikolay [14]

Step-by-step explanation:

Starting from y-intercept of [0, 2], you can either move two blocks north over 3 blocks west or two blocks south over three blocks east. Either way, you will still get this line because this is a negative rate of change [slope].

If you are ever in need of assistance, do not hesitate to let me know by subscribing to my You-Tube channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.

**I have a video that explains something like this. It is titled "Finding Slopes, y-intercepts, Perpendicular Equations, and Parallel Equations". I encourage you to watch the video and gain alot more knowledge from it, so you can better understand the concepts.

6 0

3 years ago

Is the answer a gauze?

Zinaida [17]

I think so.. If not i am super sorry!!

8 0

3 years ago

WILL MARK BRANLIEST, FOLLOW YOU, AND SAY UR THE BEST ON UR PROFILE

SCORPION-xisa [38]

The first one should be -24
2 is d there is no reason for those numbers to be negative
3=B

5 0

3 years ago

PLEASE HELP 12 POINTS

Assoli18 [71]

Answer:

5:5 (first box, pencils to pens)

7:3 (second box, coloured pencils to crayons)

The probability of picking a pen (1st box): 5/10

The probability of picking a crayon (2nd box): 3/10

Probability of picking both: 5/10*3/10 = 15/100

3 0

3 years ago