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Hunter-Best [27]
3 years ago
5

Please help, need as soon as possible

Mathematics
1 answer:
Marina CMI [18]3 years ago
4 0
An arithmetic sequence is one where you add (or subtract) a certain number to change the value. For the first sequence, it's clear that we subtract 4 every time, so that is arithmetic. Next, we constantly go from positive to negative, so we can be sure that we don't add the same number every time. For the third one, (-5.0-(-8.6))=3.6, and for -1.4-3.6 we get -5, showing that we add 3.6 for every value and the sequence is therefore arithmetic. For the fourth one,
(-3.1-(-6.2))=3.1, but -1.55-3.1 is not 3.1, showing that that is not arithmetic. For the last one, 3-(-3)=6, 9-3=6, etc. proving that you add 6 every time and the sequence is therefore arithmetic.
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I have 1 hundreds, 4 ones, 2 tens, and 1 tenths. What number am I?
DaniilM [7]
Since it reads 1 hundreds, that means 100. 4 ones mean 4 * 1, which is 4. 2 tens means 2 * 10, which is 20. Add those together and you get 124. Where it reads "1 tenth", that means 0.1
Therefore, the number is 124.1 
6 0
4 years ago
What’s 7/7 in the math world
telo118 [61]

Answer:

it is 1

Step-by-step explanation:

because 7 divided by 7 is one

8 0
2 years ago
Read 2 more answers
Need urgent help in mathematics!! Will mark brainliest!!!! PLEASE look at the photo to answer the question .....
kvasek [131]

Which Statement is TRUE?

<em><u>K  ======>  Letter Choice, (A);  The letter has Reflectional Symmetry only.</u></em>

Explanation: =====> For a shape to have Reflectional Symmetry , It means you can draw an horizontal line; side to side through its' center, and it would look identical above and below the dotted line. <u>Those Letters are, B,C, D, E, H, K, O, X.</u>

<h2> </h2>

Hope that helps!!!!                             : )

8 0
3 years ago
A football thrown by a quarterback follows a path given by hx=-0.0095x2+x+7, where h is the height of the ball in feet and x is
Wewaii [24]

Answer:

The ball can be knocked down at a horizontal distance of 3.09 feet or 102.17 feet from the marshal.

Step-by-step explanation:

We have the function that represents the height h (x) of the ball h(x) = -0.0095x^2 + x + 7

Where x is the horizontal distance of the ball.

We want to find the horizontal distance the ball is at (horizontal distance between the field marshal and the ball) when it is at a height of 10 feet.

To do this, we must do h (x) = 10

10 = -0.0095x^2 + x + 7\\0 = -0.0095x^2 + x -3

Now we must solve the second degree equation. For this we use the formula of the resolvent:

\frac{-b + \sqrt{b ^ 2 - 4 * a * c}}{2a}

       and

\frac{-b - \sqrt{b ^ 2 - 4 * a * c}}{2a}


\frac{-1 + \sqrt{1 ^ 2 - 4 * (- 0.0095)(-3)}} {2 (-0.0095)} = 3.09 ft

  and

\frac{-1 - \sqrt{1 ^ 2 - 4 * (- 0.0095)(-3)}} {2 (-0.0095)} = 102.17ft


Then, the ball can be knocked down at a horizontal distance of 3.09 feet or 102.17 feet from the marshal.

7 0
4 years ago
gary spent $350 on clothes. Jeans cost $50 each and shorts cost $15 each. if he bought 14 total items, how many jeans and shirts
mario62 [17]

Answer:

Step-by-step explanation:

6 0
3 years ago
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