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Anton [14]
3 years ago
14

What is the 10th term in the sequence below? -1, 1, 3, ... Write your answer as a number.

Mathematics
2 answers:
Annette [7]3 years ago
8 0
We notice that the difference between the 2nd term & the first is equal to the difference of the 3rd with the second:

1-(-1) = (3-1) = 2 . So d (common difference ) =2

This is an arithmetic progression with first tem a₁ = (-1) & d =2

Calculating the nth term: Last term = a₁ + (n-1)d
10th term = (-1) + (10-1)(2)= -1 +(9x2) =17
N76 [4]3 years ago
3 0
-1 plus 2 equals 1. 1 plus 2 equals 3....
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Bella’s shoe is more or less than one yard?
Luba_88 [7]
Her shoe may be about a foot, definitely not 3 feet (a yard.) A yard length shoe does not seem average or the normal size.


Therefore, Bella's shoe is less than one yard.

Hope this helps! :)
3 0
3 years ago
SHOW YOUR WORK and ill give brainlest :)
Rashid [163]

The price of the Xbox One after tax is $265

<h3><u>Solution:</u></h3>

The price of a Xbox one is $250

The tax on Xbox one is 6%  

Now, the tax of 6% on 250 is calculated as follows:-

=\frac{6}{100} \times 250\\\\=\frac{250 \times 6}{100}=\frac{1500}{100}=15

So, the tax on Xbox one is $15

The total price of box including tax can be calculated by adding price of box and tax on box

<em>Total price of Xbox after tax = actual price of the Xbox One  + Tax on the Xbox One </em>

= $250 + $15

= $265

Hence, the price of the Xbox One after tax is $265

3 0
3 years ago
Someone help me to work this problem please
zhenek [66]

Answer:

m∠3 = 64°

Since angle 2 and 3 seem to be complementary angles, we know that the meaning of complementary angles is to add both angles to 90 degrees.

Subtract 90 by the known value to get the value of ∠3

90 - 26 = 64

3 0
2 years ago
NASA cameras film a rocket launcher vertically from the launch pad, 3 miles away. When the angle between the camera and the grou
Nimfa-mama [501]
The height of the rocket is found in terms of the angle as
.. h/(3 mi) = tan(θ)
.. h = (3 mi)*tan(θ)

Then the rate of change of height (vertical velocity) is
.. h' = (3 mi)*sec(θ)^2*θ'
.. h' = (3 mi)*4*(1.5 rad/min)
.. h' = 18 mi/min

The rocket's velocity is 18 miles per minute at that moment.
8 0
3 years ago
A parabola can be drawn given a focus of (6,-1) and a directrix of y = 9. What can be said about the parabola?​
zavuch27 [327]

Answer:

Since the focus is at (-6,-11) and the directrix is at y=9:

 

The vertex is halfway between the focus and the directrix, so the vertex is at (-6,-1).  (Draw this on graph paper if that doesn't make sense.)

 

The general form (conics form) of a parabola:  4p(y-k)=(x-h)^2 (vertex is (h,k) and "p" is the distance between the focus and vertex (or between vertex and directrix)).

 

(h,k) = (-6,-1)

 

p = 10 (distance between focus and vertex), so 4p = 40.

 

Therefore:

 

40(y+1)=(x+6)^2

 

Or if you need to rearrange to "vertex form":  y=(1/40)(x+6)^2 - 1

Step-by-step explanation:

3 0
2 years ago
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