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3 years ago

I really need help on this question!!!

Mathematics

2 answers:

slava [35]3 years ago

6 0

Answer:

what you need tell me one I'll help you lot

Ludmilka [50]3 years ago

4 0

I believe the answer is 4.8 but I’m not sure

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A number n is no less than -3. what is the inequality

vazorg [7]

Answer:

n ≥ -3

Step-by-step explanation:

If n can be no less than -3... then we know that n has to be bigger than or equal to -3.

This could also be said as greater than or equal to -3

Conveniently enough... there is a sign for greater than or equal to and it is ≥

6 0

3 years ago

What is the nth term of the sequence -2 -8 -18 -32 -50

andreev551 [17]

Answer:

-2n²

Step-by-step explanation:

Using the image attached:
We see that the second differences (blue ones) are all equal so we conclude that this is a quadratic sequence.
The quadratic sequence has the form:
$T_{n} = an^{2} +bn +c$

To find the value of a we just divide second difference ( -4 ) by 2:

$a = \frac{-4}{2}= -2$

Now we have:

$T_{n}= -2n^{2} +bn+c$

Substitute $n_{1}$ and $n_{2}$ into the equation above:

$T_{1} = -2(1)^{2} +b(1) +c$

$T_{2} = -2(2)^{2} +b(2)+c$

Since $T_{1}$ = -2 and $T_{2}$ = -8 , after simplification we have:

$b +c =0$
$2b+c=0$

The solution of this system is:

b=0, c =0

The general term is :

$T_{n} = -2n^{2}$

6 0

2 years ago

A tomato plant grows 24 inches tall in 10 weeks. If the rate remains the same, how tall would the plant be after 7 weeks?

joja [24]

Answer:

168 inches which is also 14 feet

3 0

3 years ago

Help with this, least to greatest again please

Norma-Jean [14]

Answer:

-0.25, -0.15, -0.6

Step-by-step explanation:

- 1/4= -0.25.

Bigger number with negative = smaller number

5 0

2 years ago

How do I solve this I don't know how to solve this i dont under stand this

k0ka [10]

Use Pythagoras theorem
${13}^{2} + {x}^{2} = {26}^{2} \\ { {x}^{2} = 507} \\ x = 22.52$

3 0

3 years ago