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Vilka [71]
3 years ago
13

Are all trapezoids quadrilaterals

Mathematics
1 answer:
zysi [14]3 years ago
7 0
Yes all trapezoids are quadrilaterals
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i need to find the equation of the line that has the same y intercept as the line y-8x+3=0 and is parallel to the line 4x-9y=1
loris [4]

Answer:


Step-by-step explanation:

<u>How do you find the equation of a line parallel to another line? </u>

<em>Method 1:</em> Using Slope Intercept Form

Substitute the slope from original line (3 in this case) into the equation of the line y = 3x + b.

Substitute the given point (1,7) into the x and y values 7 = 3(1) + b.

Solve for b (the y-intercept)

Substitute this value for 'b' in the slope intercept form equation y = 3x + 4.

<u>How do you find the Y intercept of a parallel line? </u>

Step 1: Find the slope of the line. To find the slope of the given line we need to get the line into slope-intercept form (y = mx + b), which means we need to solve for y: The slope of the line 3x – 5y = 9 is m = 3/5. Therefore, the slope of the line parallel to this line would have to be m = 3/5.

5 0
3 years ago
Make sure to focus on the arms and feet of the man.<br> It’s my final <br> Set for 100 points !
Paha777 [63]

Shoes= 10

Man= 5

Tie= 4

So, 10+5*4= 30 <— Answer

How to get variables:

Shoes:

3 shoes are equal to 30, so to find the value of the shoes use 3x=30. X=10

Man:

2 men and a shoe is equal to 20. So, 2x+10=20

2x=10

X=5

Tie:

2 ties and a man are 13. So,

2x+5=13

2x=8

X=4

3 0
3 years ago
Read 2 more answers
Jerry started doing sit-ups every day. The first day he did 13 sit-ups. Every day after that he did 4 more sit-
zubka84 [21]

Answer:

2x + 15= 33

Step-by-step explanation:

Jerry started doing sit-ups every day. The first day he did 17 sit-ups. Every day after that he did 4 more sit-ups than he had done the previous day. Today Jerry did 73 sit-ups. Write an equation that could be solved to find the number of days Jerry has been doing sit-ups, not counting the first day. Let n represent the number of days.

7 0
2 years ago
(-5x^2+7x+1) - (8x^2+x-10)
Nata [24]

Answer:

13x^2+8x-9

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
While developing x-bar and R charts, the manager took 10 samples each of size 6. The average of sample means was 3.2. The averag
stiv31 [10]

Answer:

Option a. 1.2 is the correct answer

Step-by-step explanation:

Given the data in the question;

sample size n = 10

sub group = 6

The average of sample means x" = 3.2

Average range value R' = 0.6

the value of UCL for the R-chart = ?

To get the value of UCL for the R-chart, we say;

UCL_R = D₄ × R'

from table of constants "Tabular values for x-bar and range charts

for size 6, the factor for control limits for range D₄ = 2.004

so we substitute  

UCL_R = 2.004 × 0.6  

UCL_R = 1.2024 ≈ 1.2  

Hence, Option a. 1.2 is the correct answer.

3 0
3 years ago
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