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jolli1 [7]
2 years ago
9

Pleaseee answer 1st correct answer gets brainliest

Mathematics
1 answer:
Ludmilka [50]2 years ago
3 0

Answer:

4. No they do not form a proportion.  5. Yes they do form a proportion

Step-by-step explanation:

4 is less than 7 and 24 is less than 35 so they make proportions.

7.50 is more than 3 and 5 is more than 2 so they do not make proportions.

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Suppose a 5-digit number is formed using the digits from 1 to 9 (without replacement). What is the probability that it will be a
TiliK225 [7]

By finding the probability that the unit digit is even, we will see that the probability that the 5-digit number will be even is P = 4/9.

So we have a 5-digit number, let's say that it is:

abcde

Now, we have 5 "slots" where we can put numbers from 1 to 9 (without replacement).

We want to find the probability that the number will be even, so we only care for the last digit, e (it must be even).

Let's assume that the first digit at which we assign its value is this, e, the last one.

For this digit we have 9 options, {1, 2, 3, 4, 5, 6, 7, 8, 9}

4 of these options are even numbers.

So there are 4 out of 9 cases where the <u>last digit is even</u>, then the probability that the 5-digit number will be even is just:

P = 4/9

Now the other four digits can be anything (even or odd), so we only care for the probability above.

If you want to learn more about probability, you can read:

brainly.com/question/23044118

8 0
2 years ago
The points(0,2) and (4,-10) lie on the same line and the points (-5,-3) and (2,11) lie on another line. Determine by graphing wh
joja [24]
You are asked to do this problem by graphing, which would be hard to do over the Internet unless you can do your drawing on paper and share the resulting image by uploading it to Brainly.

If this were homework or a test, you'd get full credit only if you follow the directions given.

If <span>The points(0,2) and (4,-10) lie on the same line, their slope is m = (2+10)/(-4), or   m =-3.  Thus, the equation of this line is y-2 = -3x, or y = -3x + 2.

If </span><span>points (-5,-3) and (2,11) lie on another line, the slope of this line is:

m = 14/7 = 2.  Thus, the equation of the line is y-11 = 2(x-2), or y = 11+2x -4, or y = 2x + 7.

Where do the 2 lines intersect?  Set the 2 equations equal to one another and solve for x:

</span>y = -3x + 2 = y = 2x + 7.  Then 5x = 5, and x=1.

Subst. 1 for x in y = 2x + 7, we get y = 2(1) + 7 = 9.

That results in the point of intersection (2,9).

Doing this problem by graphing, on a calculator, produces a different result:  (-1,5), which matches D.

I'd suggest you find and graph both lines yourself to verify this.  If you want, see whether you can find the mistake in my calculations.

3 0
3 years ago
How many different triangles can you make if you are given<br>these three lengths for sides?<br>​
Dvinal [7]

Answer:

Step-by-step explanation:

i think its 3

8 0
2 years ago
What is √15 divided by √12 simplified?
photoshop1234 [79]

☁️ Answer ☁️

annyeonghaseyo!

I Got:

√5/2

Here's the Decimal Form:

1.11803398

Hope it helps.

Have a nice day noona/hyung!~  ̄▽ ̄❤️

7 0
3 years ago
The domain of a function is the set of all negative numbers. Which quadrant could the function be located in? Select two that ap
Marina86 [1]

Answer:

Step-by-step explanation:

5 0
2 years ago
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