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3 years ago

14

The graph of x=y is a straight line

1 answer:

finlep [7]3 years ago

7 0

I think it would be A?

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What fraction repsents 0.64

marysya [2.9K]

Answer:

64/100 = 16/25

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3 years ago

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A certain spinner has equally sized slices. The probability of landing on a red slice is 4/9. What are the odds in favor of land

Novosadov [1.4K]

There are 4 red slices out of 9 total. So there are 9-4 = 5 slices that are not red. The odds in favor of landing on red is 4:5

We basically write the number of ways to get what we want (4), followed by a colon, then the second number is the number of ways to get what we don't want (anything but red; 5 ways)

So that's why the answer is 4:5

-----------------------------------

Side Note -- If we want the odds against, we simply flip the ratio. The odds against would be 5:4 because there are 5 ways to lose and 4 ways to win. This is assuming that landing on red means you win.

4 0

4 years ago

WORTH 25 POINTS The finances of a group of pet owners were analyzed to determine how much they were spending on their pet(s) eac

marishachu [46]

Answer:

Yes, it is realistic to have 3 owners that spend 720$ a year on their pets

Step-by-step explanation:

See graph

7 0

3 years ago

Which value of b will cause the quadratic equation x2 + bx + 5 = 0 to have two real number solutions? –5 –3 3 4

MaRussiya [10]

Answer:

-5

Step-by-step explanation:

For a quadratic equation to have two real number solutions, the discriminant must be positive. The discriminant of a quadratic equation is:

$b^2-4ac$

This means that b^2 must be larger than 4ac. Since in this case 4ac is 4(1)(5)=20, b must be -5 out of the answer choices given. Hope this helps!

6 0

3 years ago

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If line b is perpendicular to line a, and line c is perpendicular to line a, what is the slope of line c?

slega [8]

we know that

If line b is perpendicular to line a, and line c is perpendicular to line a,

then

line b and line c are parallel

and two lines parallel have the same slope

so

<u>Find the slope of the line b</u>

Let

$A(-3,-2)\\B(2,3)$

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

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

$(x1,y1)=(-3,-2)\\(x2,y2)=(2,3)$

substitute

$m=\frac{(3+2)}{(2+3)}$

$m=\frac{(5)}{(5)}$

$m=1$

therefore

<u>the answer is</u>

<u>the slope of the line c is</u>

$mc=1$

8 0

3 years ago

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