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3 years ago

Match the unknown angle majors scroll over each angle for a clear image

Mathematics

1 answer:

bonufazy [111]3 years ago

6 0

Step-by-step explanation:

$x + 30 \degree = 70 \degree \\ \\ \therefore \: x = 70 \degree - 30 \degree \\ \huge \red{ \boxed{ \therefore \: x = 40 \degree }}$

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MATH - look at the picture and i will mark you as brainliset if you answer correctly.

mote1985 [20]

Answer:

C is the answer

Step-by-step explanation:

It's very obvi lol

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3 years ago

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A crayon company sells a pack of wax crayons for 5$. There are 10 crayons in each pack. What is the unit price of the crayons

Alchen [17]

10 crayons = $5

1 crayon = $5 ÷ 10 = $0.50

Answer: Unit Price = $0.50/crayon

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3 years ago

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10) What is the area of the figure below? Round your answer to the nearest tenth (1 place

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75 units squared. separate the shapes into a rectangle and triangle, find the area of each, and add together

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2 years ago

Solve the following recurrence relation: <br> <img src="https://tex.z-dn.net/?f=A_%7Bn%7D%3Da_%7Bn-1%7D%2Bn%3B%20a_%7B1%7D%20%3D

-Dominant- [34]

By iteratively substituting, we have

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

$a_{n-1} = a_{n-2} + (n - 1) \implies a_n = a_{n-2} + n + (n - 1)$

$a_{n-2} = a_{n-3} + (n - 2) \implies a_n = a_{n-3} + n + (n - 1) + (n - 2)$

and the pattern continues down to the first term $a_1=0$ ,

$a_n = a_{n - (n - 1)} + n + (n - 1) + (n - 2) + \cdots + (n - (n - 2))$

$\implies a_n = a_1 + \displaystyle \sum_{k=0}^{n-2} (n - k)$

$\implies a_n = \displaystyle n \sum_{k=0}^{n-2} 1 - \sum_{k=0}^{n-2} k$

Recall the formulas

$\displaystyle \sum_{n=1}^N 1 = N$

$\displaystyle \sum_{n=1}^N n = \frac{N(N+1)}2$

It follows that

$a_n = n (n - 2) - \dfrac{(n-2)(n-1)}2$

$\implies a_n = \dfrac12 n^2 + \dfrac12 n - 1$

$\implies \boxed{a_n = \dfrac{(n+2)(n-1)}2}$

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2 years ago

(x,-2) and (-9,1);slope: -3

amid [387]

Answer:

x= -10

Step-by-step explanation:

The equation is y2-y1 over x2 over x1 so

1-(-2) over -9-(x)=3

1+2=3 over -9-(x)

3/-9-x times -9-x = 3 times -9-x

3=3(-9-x)

3=-27-3x

3+27=-3x

30= -3x

-10= 3x

hope it helps man!!! :)

ps may i have brainliest so i can level up

6 0

3 years ago

Match the unknown angle majors scroll over each angle for a clear image​

Match the unknown angle majors scroll over each angle for a clear image