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Kamila [148]
3 years ago
13

Find the nth term of this quadratic sequence : 4,7,12,19,28

Mathematics
2 answers:
Nana76 [90]3 years ago
8 0
Answer is n^2+2

I attached a picture of my working out

Lady bird [3.3K]3 years ago
4 0

Answer:

n^2+3

Step-by-step explanation:

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The projected T. rex is about
dolphi86 [110]

Answer: scale\ factor=230

Step-by-step explanation:

You need to analize all the information given in the exercise.

You know that the actual height of the T-rex on the projector lens is the following:

actual\ height=2\ cm

The height of the projected T-rex is:

projected\ height=4.6\ m

Make the conversion from meters to centimeters:

projected\ heigth=(4.6\ m)(\frac{100\ cm}{1\ m})\\\\projected\ heigth= 460\ cm

Therefore, the scale factor will be:

scale\ factor=\frac{projected\ heigth}{actual\ heigth}

Finally, you must substitute values into the equation and then you must evaluate in order to find the scale factor of the projection. You get that this is:

scale\ factor=\frac{460\ cm}{2\ cm}\\\\scale\ factor=230

7 0
3 years ago
Simplify:<br> −z3+5k6−(−z3+10k6)
natta225 [31]

Answer:

The answer to your question is        -5k⁶

Step-by-step explanation:

Polynomial

                                      - z³  + 5k⁶  - (-z³ + 10k⁶)

Use law of signs for the parenthesis

                                     - z³  + 5k⁶ + z³  - 10k⁶

Use associative property for like terms

                                    (-z³ + z³) + (5k⁶ - 10k⁶)

Simplify like terms

                                    (0)  +   (-5k⁶)

Result

                                               -5k⁶

7 0
3 years ago
Read 2 more answers
If seven pencils cost $.84 find the cost of 10 pencils
Darya [45]
Salutations!

If seven pencils cost $.84 find the cost of 10 pencils?

Lets solve this!

To solve this question, you need to first divide .84 ÷ 7 which gives you the answer 0.12. Then multiply 0.12 with 10 which gives you the cost of 10 pencils. 0.12 is the cost of only one pencil.

Lets forms this into statements ---

Cost of 7 pencils = $ .84

Cost of 1 pencil = $ 0.12

Cost of 10 pencil equals = .84 ÷ 7 = 0.12

                                      = 0.12 × 10 = 1.2

Cost of 10 pencils is $1.2

Hope I helped (:

Have a great day!
3 0
3 years ago
Read 2 more answers
PLEASE HELP!!!! Liner equations &amp; graphs!!! Can someone please help me with this.
Valentin [98]

Answer:

I believe it is B.

Step-by-step explanation:

y=mx+b

y=mx+3

y= -1/2x+3

8 0
3 years ago
Use each of the numbers 4,40, and 4000 once to make true statements
AnnZ [28]

Answer:

4000/(4+96)=40

4000=4*25*40


3 0
3 years ago
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