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4 years ago

PLEASE ANSWER + BRAINLIEST !!!! Find the indicated sum for the arithmetic series.

Mathematics

1 answer:

schepotkina [342]4 years ago

8 0

Hello there,

I believe the answer would be 17×6 - 6(9+14)(6)/2 = 102 -414 = -312 but i am not 100% Sure!! Sorry if I am wrong!

Hope I helped

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Least to greatest -2/5 -2.47 -2 1/2 5 21/4

Yuliya22 [10]

-2 1/2 -2.47 -.4 5 21/4

5 0

4 years ago

A model with 3 rows of 5 squares and 3 rows of 3 squares. Use the model to find the missing number in the pair of equivalent exp

zhenek [66]

Answer:

Step-by-step explanation:

15+9=3(5+3)

24=3(5+3) ---> 24=3x8

24=24

So it's 3

3 0

3 years ago

Read 2 more answers

Please help with this

frozen [14]

Answer:

Step-by-step explanation:

D because the two angles are the same which means they are congruent. since both angles equal to 30.

6 0

3 years ago

Hello I need help with this immediately please see attached image thank you so much I will give Brainliest

erma4kov [3.2K]

Note that while the figure is made up of rectangle and parallelogram, then the area of this figure

$A_{figure}=A_{rectangle}+A_{parallelogram}.$

1. The area of rectangle is

$A_{rectangle\ ABCF}=AB\cdot BC.$

The vertices of rectangle are points A(-2,-2), B(0,-6), C(8,-2) and F(6,2). Then

$AB=\sqrt{(-2-0)^2+(-2+6)^2}=\sqrt{4+16}=\sqrt{20}=2\sqrt{5},\\ \\BC=\sqrt{(8-0)^2+(-2+6)^2}=\sqrt{64+16}=\sqrt{80}=4\sqrt{5}.$

Therefore,

$A_{rectangle\ ABCF}=2\sqrt{5}\cdot 4\sqrt{5}=8\cdot 5=40\ un.^2$

2. The area of parallelogram can be calculated using formula

$A_{parallelogram\ FCDE}=\text{base}\cdot \text{height}.$

The base of parallelogram is segment CD with length

$CD=\sqrt{(8-8)^2+(3+2)^2}=\sqrt{25}=5$

and the height has length 2 un. Then

$A_{parallelogram\ FCDE}=5\cdot 2=10\ un^2.$

3. Now

$A_{figure}=40+10=50\ un.^2$

8 0

3 years ago

У = 2 – 3х<br> Is this a linear equation

Katyanochek1 [597]

Yes this is you can tell because the d is not squared or anything it’s just basic

8 0

3 years ago