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arlik [135]
3 years ago
8

Find three consecutive odd integers whose sum is 21

Mathematics
1 answer:
MissTica3 years ago
3 0

The correct answer is 5, 7, 9.

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If n = 13, then P(t &gt; 2.2) &lt; 0.025<br> True or false
Sergeu [11.5K]

Answer:

true

Step-by-step explanation:

6 0
3 years ago
Solve in radians help plz
PIT_PIT [208]
I think we can use the identity  sin x/2  = sqrt [(1 - cos x) /2]

cos x -  sqrt3 sqrt ( 1 - cos x) /sqrt2 = 1

cos x - sqrt(3/2) sqrt(1 - cos x) = 1
sqrt(3/2)(sqrt(1 - cos x) =  cos x - 1   Squaring both sides:-
1.5 ( 1 - cos x) = cos^2 x - 2 cos x + 1

cos^2 x - 0.5 cos x - 0.5 = 0 

cos x = 1 , -0.5

giving x = 0 , 2pi, 2pi/3,  4pi/3  ( for  0  =< x <= 2pi)

because of thw square roots some of these solutions may be extraneous so we should plug these into the original equations to see if they fit.

The last 2 results dont fit so the answer is  x = 0 , 2pi Answer
5 0
3 years ago
Write 0.00000000018 in a scientific notation
Ugo [173]

Answer:

1.8*10^{-10}

Step-by-step explanation:

To find the number in scientific notation you want to find how many times you have to move the decimal to get the decimal to be right after the first non-zero number. If you move to the left the exponent is positive and if you move it to the right the exponent is negative. The answer would be 1.8*10^{-10}.

6 0
3 years ago
Use the subway train schedule below to answer the question.
Aliun [14]

Answer:

  40 minutes

Step-by-step explanation:

The least common multiple of 8 minutes and 10 minutes is ...

  LCM(8, 10) = 8·10/GCD(8, 10) = 80/2 = 40

The red and blue trains will arrive together again in 40 minutes.

6 0
3 years ago
PLS HELP ILL MARK BRAINLIST
Ipatiy [6.2K]

Answer:

76 m²

Step-by-step explanation:

The figure has been decomposed into 3 rectangles as shown in the attachment. Therefore:

Area of the figure = area of rectangle 1 + area of rectangle 2 + area of rectangle 3

✔️Area of rectangle 1:

Area = L*W

L = 2 m

W = 4 m

Area = 2*4 = 8 m²

✔️Area of rectangle 2:

Area = L*W

L = 4 m

W = 6 - 4 = 2 m

Area = 4*2 = 8 m²

✔️Area of rectangle 3:

Area = L*W

L = 10 m

W = 6 m

Area = 10*6 = 60 m²

✅Area of the figure = 8 + 8 + 60

= 76 m²

7 0
3 years ago
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