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2 years ago

14

EB bisects ∠RED. Find the measure of ∠BED if ∠REB = 5x – 3 and ∠RED = 8x + 16plzzzzzzzzzzz

1 answer:

Allushta [10]2 years ago

7 0

Answer:

this is 52 degrees

Step-by-step explanation:

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The popping-times of the kernels in a certain brand of microwave popcorn are normally distributed with a mean of 150 seconds and

RSB [31]

The z-score of the data can be calculated by the formula expressed as follows:

z = ( score - mean ) / standard deviation
z = (126 - 150 ) / 11 = <span>-2.18
</span>
A z-Score<span> is a statistical </span>measurement<span> of a </span>score's<span> relationship to the mean in a group of </span>scores<span>. A </span>Z-score<span> of 0 means the </span>score<span> is the same as the mean.</span><span>

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2 years ago

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Darya [45]

Answer:

when you round it it would equal to around 29.03 so its...

64lbs = 29.03kg

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2 years ago

Find all complex solutions of X^2-5X -5= 0

denis-greek [22]

ANSWER

$x = \frac{ 5 - 3\sqrt{ 5} }{2} \: or \: x = \frac{ 5 +3 \sqrt{ 5} }{2}$

EXPLANATION

The given equation is

${x}^{2} - 5x - 5 = 0$

The solution is given by the formula

$x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a}$

where a=1, b=-5, c=-5

We substitute into the formula to get;

$x = \frac{ - - 5 \pm \sqrt{ {( - 5)}^{2} - 4(1)( - 5)} }{2(1)}$

We simplify to get,

$x = \frac{ 5 \pm \sqrt{ 45} }{2}$

The solutions are:

$x = \frac{ 5 - 3\sqrt{ 5} }{2} \: or \: x = \frac{ 5 +3 \sqrt{ 5} }{2}$

The equation has no complex roots.

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2 years ago

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GuDViN [60]

Answer:

1= 40, 25, 10

2= 9,375, 46,875, 234,375

3= 234, 729, 2,187

4= 192, 384, 768

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1 year ago

Sorry about the bad quality :(

dmitriy555 [2]

Answer:

Yes, y varies directly with x, and the equation is $y=1.6x$ .

Step-by-step explanation:

To check where there is a direct relationship between x and y, we need to check whether all the x,y pairs we have fit some rule:

$y=k\times x$ .

For the first pair (x=4, y=6.4),

$6.4=k\times 4$

Therefore $k = 1.6$ .

For the second pair (x=7, y=11.2),

$11.2=k\times 7$

Therefore $k = 1.6$ .

For the third pair (x=10, y=16),

$16=k\times 10$

Therefore $k = 1.6$ .

For the second pair (x=13, y=20.8),

$20.8=k\times 13$

Therefore $k = 1.6$ .

So x does directly vary with y, and we have found out that $k=1.6$ .

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3 years ago

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