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3 years ago

I really need this! Thanks

Mathematics

1 answer:

Anon25 [30]3 years ago

5 0

Triangle ABC is isosceles (even tho' it doesn't look so).

m<BDE = m<BED because of that.

Thus, 66 degrees + 2 m<BDE = 180 degrees, and

2 m<BDE = 114 degrees. Thus, m<BDE = 57 degrees.

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What’s the answer to the question

almond37 [142]

What question? what are you trying to ask?

4 0

3 years ago

Please help! Write the slope-intercept form of the equation for the line.

kifflom [539]

Answer:

Step-by-step explanation:

The slope intercept of a line is y=mx +b where

m is the slope which is calculated as the vertical distance divided by the horizontal distance between two points.
b is the y-intercept for value on the y-axis for which the line crosses it.

This graph crosses the y-axis (the vertical line) halfway between -1 and -2. This is -3/2. This means only answers a, c, and d are options.

The graph moves up from -3/2 to its next point at (-4,0). We calculate the slope using:

Slope: $m=\frac{y_2-y_1}{x_2-x_1}$

We substitute $x_1=0\\y_1=-1.5$ and $x_2=-4\\y_2=2$

$m=\frac{2-(-1.5)}{-4-0}$

$m=\frac{2+1.5}{-4}=\frac{3.5}{-4} =-0.875$

This decimal is equivalent to -7/8. This means C is the answer.

8 0

3 years ago

Can anybody help with these? It’s trigonometry

mash [69]

Answer:

1 is 17

Step-by-step explanation:

2 is 15. Mark me BRAINLISTESLD

7 0

3 years ago

The graph shows equivalent Leah plots a point to show a fourth equivalent ratio. If the y-value of Leah’s point is 36, what is t

denis23 [38]

All you have to do is find the slope of the graph.

1) Pick 2 points: (8,9) and (16,18) for example
2) Use the slope formula (y2-y1)/(x2-x1)
3) Once you know the slope, you know how much the graph will rise for each x-unit. Find the x distance between 24 and the new point (36), and use can calculate how high the y value should be

Does that help?

3 0

4 years ago

Read 2 more answers

Test the convergence of the series sigma_n = 1^infinity n^n/n!

riadik2000 [5.3K]

With $a_n=\frac{n^n}{n!}$ , we have

$\dfrac{a_{n+1}}{a_n}=\dfrac{\frac{(n+1)^{n+1}}{(n+1)!}}{\frac{n^n}{n!}}=\dfrac{(n+1)n!}{(n+1)!}\left(\dfrac{n+1}n\right)^n=\left(1+\dfrac1n\right)^n$

whose limit is (famously) $e$ as $n\to\infty$ . $e>1$ , so the series diverges by the ratio test.

7 0

3 years ago