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Margaret [11]
3 years ago
15

WILL MARK YOU BRAINLIEST

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
7 0
We know that the sum of all angle measures in a trapezoid is 360* (* means degrees)

Therefore we can construct the equation
(X+28)+(x)+(4x-14)+(4x-14)= 360

Now add like terms

10x = 360

And divide by the coefficient of X (aka 10)

X= 36
You might be interested in
Kelsey graphed the equation y = 3x + 1 as shown below.
USPshnik [31]

Answer:

D. Kelsey graphed the slope as the y-intercept and the y-intercept as the slope.

Step-by-step explanation:

The equation to graph was : y= 3x + 1 where the slope is 3 and the y-intercept is 1

However, Kelsey graph line passes through points (-3, 0)and (0, 3).From these points the equation of the line is;

m=Δy/Δx  where

m=the slope of the graph

Δy= 3-0 =3

Δx= 0--3 =3

m=3/3 = 1

The equation of the line should be;

m=Δy/Δx

1=y-3/x-0

1x= y-3

3+1x= y

y= 1x + 3 ----------where the slope is 1 and y-intercept is 3

So you can see here that in the original equation,<em> the slope m is 3 and y-intercept is 1 as shown in the first attached graph.</em>

While in the Kelsey's graph, <em>the slope is 1 and the y-intercept is 3 as in the second attached graph. </em>

<em>Thus, the correct answer is D : Kelsey graphed </em><u><em>the slope,3</em></u><em> as the </em><em>y-intercept </em><em>and the</em><u><em> y-intercept,1,</em></u><em> as the slope. </em>

Answer choice A is incorrect because Kelsey didnot graph the y-intercept, 1 on the x-axis but graphed point (-3,0) on the x-axis.

Answer choice B is incorrect because on Kelsey's equation the y-intercept is 3 and not -3. i.e. y=1x + 3

Answer choice C is incorrect because Kelsey graphed the slope as up 1 right 1 which is okay per the equation , y=1x+3.However, this incorrect because the correct graph has a slope of 3.

4 0
3 years ago
Read 2 more answers
3eighths - negitive 5 and 1 fourths
WITCHER [35]
Sorry, what exactly is the question?
8 0
3 years ago
Read 2 more answers
On a number line, a number, b, is located the same distance from 0 as another number, a, but in the opposite direction. The numb
sdas [7]

Answer:

b=-a

Step-by-step explanation:

8 0
3 years ago
Each year Lizzie’s school purchases student agenda books, which are sold in the school store. This year, the school purchased 35
Stells [14]

The school can charge $7.54 for each agenda book.

Step-by-step explanation:

Given,

Purchase price of 350 books = $1137.50

Profit they want to make = $1500

Total amount = 1137.50 + 1500 = $2637.50

Therefore;

The school must sell 350 books for $2637.50

Thus,

350 books = 2637.50 dollars

1 book = \frac{2637.50}{350}

1 book = $7.535

Rounding off to nearest cent

1 book = $7.54

The school can charge $7.54 for each agenda book.

Keywords: addition, division

Learn more about addition at:

  • brainly.com/question/10666510
  • brainly.com/question/10699220

#LearnwithBrainly

5 0
3 years ago
At which roots does the graph cross the x-axis?<br> 0<br> -2<br> -4<br> no<br> ir<br> A:-4
sp2606 [1]

Answer:

0 and -2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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