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Dominik [7]
3 years ago
6

Solve (x+1<4) and (x-8>-7)

Mathematics
1 answer:
olya-2409 [2.1K]3 years ago
4 0
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A couple plans to have four children. Using a tree diagram , obtain the sample space. List the elements that make up the sample
blagie [28]
<span>Correct answer is B.

There are 2^4 = 16 points in the sample space, so choices C and D are automatically out.
 
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So the answer is choice B</span>
4 0
3 years ago
Ind an equation for the nth term of the arithmetic sequence.<br><br> a14 = -33, a15 = 9
marin [14]

Answer:

a_n=42n-621

Step-by-step explanation:

This is arithmetic sequence so you should go to linear equations in your head.

Think of the question asking you to find the equation of line going through the points:

(14,-33) and (15,9).

First, let's find the slope.

You need to compute y's change over x's change.

The way I like to do that is line up the points vertically, subtract them, and then put 2nd difference over first.

Like this:

(  15  ,   9)

-(  14  ,  -33)

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

   1         42

So the slope is 42/1=42.

(The slope is our common difference.)

Now point slope form is:

y-y1=m(x-x1) where m is the slope and (x1,y1) is a point you know on the line.

So we have m=42 and (x1,y1)=(15,9).  (You could have chose the other point.)

y-9=42(x-15)

I'm going to put in slope-intercept form.  Slope-intercept form is y=mx+b where m is the slope and b is the y-intercept.

y-9=42(x-15)

Solve for y by adding 9 on both sides:

y=42(x-15)+9

Distribute 42 to terms in the ( ) :

y=42x-42(15)+9

y=42x-630+9

y=42x-621

So we can which back to n now:

a_n=42n-621

5 0
2 years ago
Please help!! I have been stuck on this question for a while
denis23 [38]

Answer:

180\ in.^2

Step-by-step explanation:

The area of a rectangle can is defined as A = wl where w is the width and l is the length. The width in this case is 12 and the length is 15. Also it doesn't really matter what order you put it in. This gives you an area of (15\ in.) (12\ in.) = 180\ in.^2

8 0
1 year ago
Write cot θ in reduced fraction form. (Picture included)
aleksandr82 [10.1K]
Tangent theta = opp/adj = 48/36 = 4/3
8 0
3 years ago
HELP ASAP WHICH FUNCTION BELOW HAS THE GREATER RATE OF CHANGE THX AND PLZ
Sophie [7]

Answer:

B

Step-by-step explanation:

B has a slope of 7 while A has a slope of 6.

slope of B 14-7/2-1 = 7

A slope is y= mx+b and m is the slope. so 6.

4 0
2 years ago
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