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Anyone know this question - 1

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Answer 1
Answer: answer is 70degree because if angle 1 is 70 then angle 2 also will be the same then it means even angle 3 will be 70.
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a music teacher has 4 drum kits. Each kit has 2 drumsticks. Each drumstick cost $3. How many drumsticks does she have? What is the cost to replace them all?

Answers

Answer: to replace all of the drumsticks it would cost $24


Step-by-step explanation:


Answer:

4 x 2 =8 * $3 =$24

She has 8 drumsticks since she has 4 drum kits and each kit has 2 drum sticks you would do 4 x 2 which equals 8.

Since there are 8 drum sticks and each drum stick costs 3$ you would do 8 x3 which would sum up to 24.

Step-by-step explanation:


What is the equation of the graphed line?Hint: Determine the slope of the line.


y = x

Answers


MOD . . . 

I have respectfully withdrawn the answer I started with.
I may come back later and write a correct answer, but for now,
I would like to have any trace of my activity expunged.
Please delete this.
ALC

A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting the given result.More than three twos.

A.

0.433

B.

0.564

C.

0.905

D.

0.403

Answers

Answer:

Probability (P) (k successes out of n trials) = nCk * p^k * (1-p)^(n-k), where nCk = n! / (k! * (n-k)!)

for this problem n=20, p = 1/6(probability of rolling 1 two) is approximately 0.1667

P ( of getting more that 3 two's) = 1 -P(0 two's out of 20 trials) -P(1 two out of 20 trials) -P(2 two's out of 20 trials) -P(3 two's out of 20 trials)

P ( of getting more that 3 two's) = 1 -0.026 -0.104 -0.198 -0.238 = 0.434

My answer is A

How would you solve (4k+5)(k+1)=0?

Answers

(4k+5)(k+1)=0\iff4k+5=0\ or\ k+1=0\n\n4k=-5\ or\ k=-1\n\n\boxed{k=-(5)/(4)\ or\ k=-1}
(4k + 5) (k + 1) = 0

Before you rush off and start trying to do complicated things with that equation,
put your pencil down, fold your hands in your lap, and sit and look at it for a while.
Keep looking at it until a little voice yells out "Hey !  That's a true statement if
either
(4k + 5) is zero  or  (k+1) is zero.  THEN go to work on it.

(4k + 5 = 0)
4k = -5
k = -5/4

(k + 1 = 0)
k = -1

And there are the two solutions to that equation.

I need help with this question someone please help and explain. Find the sum of the first twenty-seven terms of an arithmetic series whose first term is -8 and the sum of the first seven-term is 28.

Answers

Answer:

The sum of the first twenty-seven terms is 1,188

Step-by-step explanation:

we know that

The formula of the sum in arithmetic sequence is equal to

S=(n)/(2)[2a1+(n-1)d]

where

n is the number of terms

a1 is the first term

d is the common difference (constant)

step 1

Find the common difference d

we have

n=7

a1=-8

S=28

substitute and solve for d

28=(7)/(2)[2(-8)+(7-1)d]

28=(7)/(2)[-16+(6)d]

8=[-16+(6)d]

8+16=(6)d

d=24/(6)=4

step 2

Find the sum of the first twenty-seven terms

we have

n=27

a1=-8

d=4

substitute

S=(27)/(2)[2(-8)+(27-1)(4)]

S=(27)/(2)[(-16)+(104)]

S=(27)/(2)88]

S=1,188

Can anyone help me? I don't understand this. can u also give the calculations please??

Answers

Is there another side to it?