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ycow [4]
2 years ago
14

Dayton writes the expression n2+4n+1 for the number of squares used to make the nth figure in the pattern shown. Drag statements

to the table to explain what each term in his expression tells you about the figure. Math item stem image CLEAR CHECK Term What this term tells you about the figure n2 4n 1
Mathematics
1 answer:
mixer [17]2 years ago
5 0

well that took alot of guesses...

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How to solve x^2>4x+3
Papessa [141]
Treat this as you would the quadratic equation x^2 - 4x - 3 + 0.   Solve this by completing the square:

x^2 - 4x + 4 - 4 - 7 = 0

(x^2 - 4x + 4) = 11

    (x-2)^2 = 11, and so x-2 = plus or minus sqrt(11).

Graph this, using a dashed curve (not a solid curve).  Then shade the coordinate plane ABOVE the graph.
7 0
2 years ago
Which equation could define the function below?
dimulka [17.4K]

Answer:

y= (x+1)(x+ .5) (x+ 3.5)

y= (x+1) (X - .5) (x-3.5)

y = (x-1) (X-.5) (x-3.5)

y= (x+1) (X- .5) (x +3.5)

Step-by-step explanation:

6 0
2 years ago
Solve:<br> 4 = k/7 <br> a. 24<br> b.11<br> c. 32<br> d. 28
Margarita [4]

Answer:

D. 28

Step-by-step explanation:

4 = \frac{k}{7} \\\\28 = k

8 0
3 years ago
Read 2 more answers
My brother is currently three times as old as me, but in five years, my brother
wolverine [178]

Answer: Your brother is 15 years old right now.

Step-by-step explanation:

Let be "m" your currently age and "b" your brother's currently age.

Knowing that right now he is three times (this indicates multiplication) as old as you, you can write the following equation:

b=3m

In five years your age will be:

 m+5

And your brother's age will be:

b+5

Then, if in five years, your  brother will be twice as old as you, you can set up the second equation:

b+5=2(m+5)

Then, the System of equations is:

\left \{ {{b=3m} \atop {b+5=2(m+5)}} \right.

 Apply the Substitution method and substitute the first equation into the second one and solve for "m":

3m+5=2(m+5)\\\\3m+5=2m+10\\\\m=10-5\\\\m=5

Substitute the value of "m" into the first equation and evaluate in order to find "b":

b=3(5)\\\\b=15

4 0
3 years ago
Given the point and it''s image, determine the scale factor. A (3, 6) A'' (4.5, 9) G'' (3, 6) G (1.5, 3) B (2, 5) B'' (1, 2.5).
Natasha2012 [34]
Put the value of the letters with " over the original
So for A we have 3 in the front and 4.5 for A"
4.5/3 = 1.5
We can check if this is actually the scale factor but using the other numbers
The second numbers for A and A" are 6 and 9
6 * 1.5 = 9
So for point A it is 1.5
Use the same thing for G. That gives you 2
For B, you get 0.5
So the scale factors are 1.5, 2, and 0.5
5 0
3 years ago
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