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2 years ago

Answer the following equation

Mathematics

1 answer:

Masja [62]2 years ago

4 0

Answer: 1/8 (4^6-4^3)= ▶504◀

Step-by-step explanation

ʕっ•ᴥ•ʔっBrainlest

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The lines (m-2)x+y=2 and mx+2y=k intersect at (2,8). Find the values of m and k

Lerok [7]

Step-by-step explanation:

(m - 2)x + y = 2

y = -(m - 2)x + 2

8 = -(m - 2)(2) + 2

6 = -(m - 2)(2)

3 = -(m - 2)

-3 = m - 2

-1 = m

mx + 2y = k

2y = -mx + k

$y = - \frac{1}{2} mx + \frac{k}{2} \\ y = \frac{1}{2} x + \frac{k}{2} \\ 8 = \frac{1}{2} (2) + \frac{k}{2} \\ 7 = \frac{k}{2} \\ 14 = k$

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3 years ago

Why is triangle MNL and KNL the same?

irinina [24]

They are the same because both triangles have the same every to the other triangle.

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3 years ago

RSTU is a kite m A. 120 B. 60 C. 80 D. 140

Ket [755]

Answer:

B. 60

Step-by-step explanation:

a quadrilateral always adds up to 360°. so you add up all angles then subtract your sum from 360. 140+80=220, now add angle U which is a congruent angle to angle s so 220+80=300. now 360-300=60

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3 years ago

What is the sum of the first 51 terms of the sequence? −282,−266,−250,−234,...

Pavel [41]

Answer:

The sum of the first 51 terms of the sequence is 6018

Step-by-step explanation:

AP: −282,−266,−250,−234,...

First term = a = -282

Common difference = d = $a_2-a_1=a_3-a_2$

Common difference = d = -266-(-282)=-250-(-266)=16

Formula of sum of first n terms = $S_n=\frac{n}{2}(2a+(n-1)d)$

Substitute n = 51

So, $S_{51}=\frac{51}{2}(2(-282)+(51-1)(16))$

$S_{51}=6018$

Hence the sum of the first 51 terms of the sequence is 6018

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3 years ago

TASAP HELP + 50 POINTS Find the value of x. Show all the work

rusak2 [61]

Answer:

Step-by-step explanation:

im pretty sure at least. since x is on a midpoint, it'd half of 14.

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3 years ago