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3 years ago

7

What is the measurement of Angle x. please explain

2 answers:

Eduardwww [97]3 years ago

6 0

Answer:

55°. The congruency lines for 55° is the same as x, so that means that they are the same.

Dmitriy789 [7]3 years ago

5 0

Answer:

Step-by-step explanation:

55 because angle d and the 55 degree angle are both acute

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How to find the area of a equilateral triangle that has a perimeter of 21?

Romashka-Z-Leto [24]

First, we have to find the length of each side of triangle. Equilateral triangle means 3 sides r in same length, so each side will be 21 ÷ 3 = 7
Now we need to calculate the height of the triangle. We can do this by Pythagoras theorem
Let the height be h
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3 years ago

Write the equation of the line that passes through the points (6,2) (4,1)

Alisiya [41]

Answer: y=1/2x-1

Step-by-step explanation:

To find the equation of the line that passes through the points, we need to find out slope, m.

$m=\frac{y_{2} -y_{1} }{x_{2}-x_{1} }$

We plug our points into this formula to find slope.

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Our slope is 1/2. To find our y-intercept, b, we would plug any point into the equation for slope-intercept form.

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3 years ago

What is the value of a1 of the geometric series? Sigma-Summation Underscript n = 1 Overscript infinity EndScripts 12 (negative o

worty [1.4K]

Answer:

12

Step-by-step explanation:

The given geometric series is

$\sum_{n = 1}^{ \infty} 12( { - \frac{1}{9} })^{n - 1}$

We want to determine the first term of this geometric series.

Recall that the explicit formula is

$a_{n} = 12( { - \frac{1}{9} })^{n - 1}$

To find the first term, we put n=1 to get:

$a_{1} = 12( { - \frac{1}{9} })^{1 - 1}$

This gives us:

$a_{1} = 12( { - \frac{1}{9} })^{0}$

$a_{1} = 12(1) = 12$

Therefore the first term is 12

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4 years ago

Read 2 more answers

Find the distance between the pair of points (-7, 2) and (-2, 14)

VladimirAG [237]

Step-by-step explanation:

Distance between points (-7, 2) and (-2, 14) is 13

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3 years ago