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3 years ago

What is an angle that is adjacent to DEA?

Mathematics

1 answer:

White raven [17]3 years ago

5 0

Answer:

CED or AEB

Step-by-step explanation:

adjacent angles share the same vertex and one side so it will be either CED or AEB

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The first two terms in a geometric series are 20, 22. To two decimal places, the sum of the first k terms of the series is 271.5

Triss [41]

Answer:

k=9

Step-by-step explanation:

First find r=22/20=1.1

The sum of the first k terms formula is a1•(1-r^k)/(1-r)

a1=20 and the sum is 271.59

Now plug in these values in the formula and find k.

271.59=20(1-1.1^k)/(1-1.1)

When you simplify this equation, you will get k=ln(2.358)/ln(1.1)

k=9

6 0

3 years ago

5x - Зу = -7

sergeinik [125]

Answer:

I think elimination method will the the beat and easiest method we can use in that question,

4 0

3 years ago

Solve 7x + 2 < 9x - 4

Alexus [3.1K]

Answer:

$\boxed{\bold{x>3}}$

Step By Step Explanation:

Subtract 2 From Both Sides

$\bold{7x+2-2$

Simplify

$\bold{7x$

Subtract 9x From Both Sides

$\bold{7x-9x$

Simplify

$\bold{-2x$

Multiply Both Sides By -1 (Reverse Inequality)

$\bold{\left(-2x\right)\left(-1\right)>\left(-6\right)\left(-1\right)}$

Simplify

$\bold{2x>6}$

Divide Both Sides By 2

$\bold{\frac{2x}{2}>\frac{6}{2}}$

Simplify

$\bold{x>3}$

- Mordancy

5 0

3 years ago

Solve for j.<br>-2j + 39 = 111<br>j=<br>

olga_2 [115]

Answer:

reeeeeerre

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Please help me I tried multiplying it, dividing it, etc.... and it wouldn't work? This is my final chance to get this question r

Yuliya22 [10]

Answer:

let t=9 =1296

let t= 10 =1600

let t=11 =1936

let t = 12 =2304

Step-by-step explanation:

16t^2

let t=9

16(9)^2 = 16*81=1296

let t= 10

16 *10^2 = 16*100=1600

let t=11

16*11^2 =16*121=1936

let t = 12

16*12^2 =16*144=2304

6 0

4 years ago