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4 years ago

I need help with #16. please show an example, i do not get this,

Mathematics

1 answer:

serious [3.7K]4 years ago

3 0

Here's a diagram showing how to combine angles LDA (in red) and angle ADE (in blue). Hopefully it becomes a bit clearer why these two angles add up to line segment LE. Erase the shared segment DA if it helps show LE better.

See attached image below.

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you bought 12 two liter bottles of coke and sprite for the chridtmas dance the coke was on sale for 1.00 per bottle and the Spri

AlladinOne [14]

Answer:

6 of each

Step-by-step explanation:

1.50 x 6= 9

1 x 6= 6

9+6=15

6 0

3 years ago

Someone please i need help on my geometry homework !!!!

saveliy_v [14]

Answer:

x= 9

Step-by-step explanation:

13x+2+3x-4+5x-7=180

21x-9=180

21x=189

x=9

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3 years ago

What ordered pair is the solution to -7x+3y=2

goldenfox [79]

Answer:

Step-by-step explanation:

3y=7x+2

$y=\frac{7x+2}{3}\\x=1,y=3\\$

one pair is (1,3)

go on adding 3 in x=1,you get corresponding value of y.

x=4,y=10,(4,10)

and so on .

7 0

4 years ago

The half-life of the carbon-14 isotope is about 5700 years. It occurs naturally in all organic matter. Scientists have discovere

netineya [11]

Answer:

The volcanic eruption occurred 8,634.90 years ago.

Step-by-step explanation:

Formula used:

$N=N_o\times e^{-\lambda t}\\\\\lambda =\frac{0.693}{t_{\frac{1}{2}}}$

where,

$N_o$ = initial mass of isotope = x

N = mass of the parent isotope left after the time, (t) = 35% of x=0.35x

$t_{\frac{1}{2}}$ = half life of the isotope = 5700 year

$\lambda$ = rate constant

$0.35x=x\times e^{-(\frac{0.693}{5700 years})\times t}$

Now put all the given values in this formula, we get

$t=8,634.90 years$

The volcanic eruption occurred 8,634.90 years ago.

8 0

3 years ago

Points A, B, and C are collinear. Point B is between A and C. Solve for x. Find x if BC = 2x+10, AC = x+21, and AB = 11.

mario62 [17]

Answer:

x = 0

Step-by-step explanation:

Since the points are collinear , then

AB + BC = AC , that is

11 + 2x + 10 = x + 21

2x + 21 = x + 21 ( subtract x from both sides )

x + 21 = 21 ( subtract 21 from both sides )

x = 0

3 0

3 years ago