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1 year ago

Help please I need answer asap

Mathematics

1 answer:

antiseptic1488 [7]1 year ago

6 0

1) Vertical angles theorem

Angles EOF and BOC are vertical angles.

2) Angle addition postulate

Angles AOB and BOC add to form angle AOC.

3) Linear pair

Angles that add to form a straight angl are a linear pair

4) Subtraction property of equality

They subtracted angle AOC from both sides.

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What is the unit rate for the ratio 280 student/8 buses

liubo4ka [24]

Answer:

Step-by-step explanation:

280 students/8 buses= 35 students/ 1 bus

answer is A

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3 years ago

7 times a number is 18 less than the square of that number. Find the positive solution.

Arte-miy333 [17]

So 7 x = x2 -18 so you get the quadratic x^2 -7x -18 and then get 2 x -9= -18 and 2 + -9 = -7 so you get (x + 2) ( x - 9) so the positive solution would be x-9 = 0 so x= 9. Hope this helps :)

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3 years ago

A pair of jeans normally costs £40.

creativ13 [48]

Answer:

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Step-by-step explanation:

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3 years ago

Find the generating function for the sequence 1,-2,4,-8, 16, ...

kirill [66]

Answer:

$a(x)=\dfrac{1}{1+2x}$

Step-by-step explanation:

The generating function a(x) produces a power series ...

$a(x)=a_0+a_1x+a_2x^2+a_3x^3+\dots$

where the coefficients are the elements of the given sequence.

We observe that the given sequence has the recurrence relation ...

$a_0=1;a_n=-2a_{n-1} \quad\text{for n $>$ 0}$

This can be rearranged to ...

$a_n+2a_{n-1}=0$

We can formulate this in terms of a(x) as follows, then solve for a(x).

$\sum\limits^{\infty}_{n=1} {a_{n}x^n} =a(x)-a_0 \quad\text{and}\\\\\sum\limits^{\infty}_{n=1} {2a_{n-1}x^n} =(2x)a(x) \quad\text{so}\\\\\sum\limits^{\infty}_{n=1} {(a_n+2a_{n-1})x^n}=0=a(x)-a_0+2xa(x)\\\\a(x)=\dfrac{a_0}{1+2x}=\dfrac{1}{1+2x}$

The generating function is ...

a(x) = 1/(1+2x)

3 0

2 years ago

Read 2 more answers

Identify p, b, and a. Do not solve for the unknown.<br><br> 10.9 is what percent of 34?

Rashid [163]

10.9 = x% of 34

10.9 is the amount
x% is the percent
34 is the base

8 0

3 years ago