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In-s [12.5K]
3 years ago
12

A 20-row theater has three sections of seating. In each section,

Mathematics
2 answers:
Dominik [7]3 years ago
8 0
The total no. of chairs are 930.
for each of the end sections <span><span><span>∑<span>i=4</span>23</span>i</span></span>
ivanzaharov [21]3 years ago
6 0
I'm not 100% sure but try A.
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Write answer in slope intercept form (3,-8); slope= -3
Slav-nsk [51]

Answer:

y=-3x-8

Step-by-step explanation:

The slope intercept form is y=mx+b.

The "mx" is the slope; which in this case is -3. So -3x.

The "b" is the y-intercept, which is this case is the -8 because it is the 2nd number in the coordinate point.

This is why the answer is y=-3x-8.

4 0
2 years ago
Read 2 more answers
a garden plot is to contain 240 sq. ft. if its length is to be 3 times its width,what should its dimensions be?
SOVA2 [1]
240 ft^2 = L X W
240 = 3W x W
240 = 3W^2
W = 8.94427 ft
L = 3W = 3(8.94427)
L = 26.8328 FT
8 0
2 years ago
I dont understand this
kirza4 [7]

Step-by-step explanation:

first u find the angles and then u use some low divide the length of triangle by sin of opposite angles

4 0
3 years ago
Determine if the two figures are congruent and explain your answer using transformations.
IRISSAK [1]

Answer:

Comparing each pair of lines,

AB and EF,

BC and FG,

CD and GH,

DA and HE.

For, AB and EF,

If we take a look at both the lines they are the mirror image of each other, the distance between point A and B is 1 unit upwards, and 2 unit sidewise, similarly between point E and F the distance is 1 unit upwards, and 2 unit sidewise. therefore, the length of both the lines is the same.

Also, we can use the formula, for the distance between two points on a coordinate plane,

,

As we can see in the image,

A = (-1, 1),

B = (-3, 2),

C = (-4, 4),

D = (-2, 6),

E = (2, 0),

F = (4, 1),

G = (5, 3),

H = (3, 5),

Solving using the formula,

AB = EF = √5,

BC = FG = √5,

CD = GH = √8,

DA = HE = √26,

Therefore, the length of all the sides of the polygon are the same,

Hence, the two figures are congruent.

Step-by-step explanation:

7 0
2 years ago
A 3 m spring requires 12 J to stretch to 3.1 m. How much work is required to stretch the spring to 3.2m?
Cerrena [4.2K]
I DONT KNOW BROOjssj
7 0
2 years ago
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