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svetlana [45]
4 years ago
10

In trapezoid EFGH, m∠HEF=(4x2+16)∘ and m∠GFE=(5x2+12)∘. Find the value of x so that EFGH is isosceles. HELP PLEASE!!

Mathematics
1 answer:
wolverine [178]4 years ago
4 0

Answer:

The answer would be B if im wrong SORRY ;)\beta\beta \beta \beta \beta \beta \beta \beta \beta \beta \beta \beta \beta \beta \beta

Step-by-step explanation:


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a person runs at a constant speed of 9.2 miles per hour for 6 minutes and 30 seconds. How far did they travel in yards.
ipn [44]

Given:

Speed= \bold{9.2 \ \frac{miles}{hour}}  

\therefore \\\\

1-hour= 60 minutes

1-minutes=60 second

So

1-hour= 3600 second

Converting the given time into seconds:

Time= 6 minutes and 30 second

       =\bold{6\times 60 \ second + 30 \ second }\\\\=\bold{360\ second+30\ second}\\\\=\bold{390\ second}\\\\

When 3600 seconds covers=9.2 miles

Then equation:

=\bold{\frac{9.2}{3600}}\\\\

390 seconds covers:

=\bold{\frac{9.2}{3600}\times 390 \ miles} \\\\  

Let

\bold{1 \ miles= 1760\ yard}\\\\

Convert the traveling value into yards:

=\bold{ \frac{9.2}{3600}\times 390\times 1760}\\\\=\bold{ \frac{9.2}{36}\times 39\times 176}\\\\=\bold{ \frac{9.2}{12}\times 13\times 176}\\\\=\bold{ \frac{9.2}{12}\times 2288}\\\\=\bold{ 9.2\times 190.66}\\\\=\bold{ 1754.072\ yards}\\\\

Therefore, total traveling yards are"1754.072".  

Learn more:

brainly.com/question/20282942

7 0
2 years ago
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Mauricio conducted an experiment in which he drew marbles out of the bag and recorded the colors. The results of the experiment
Rzqust [24]
60 to 14 would be the answer I think.

3 0
3 years ago
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What is the common ratio of the geometric sequence: -1/12, -1/2,-3,-18...?
makvit [3.9K]
The answer is B 1/6 just divide the first number by the second one<span />
4 0
3 years ago
Sandra has developed a program designed to increase reading comprehension scores in 6th graders. She randomly selects three stud
Mandarinka [93]

Answer:a small sample size

Step-by-step explanation:

From the information given in the question, we are informed that Sandra developed a program that was designed to increase reading comprehension scores in 6th graders and she then randomly selects three students and has them participate in her program.

After comparing the mean score from the students who completed her program to three students who did not participate in the program, she finds no significant difference between their mean scores, it should be noted that the reason for this will be because the sample size is small.

If a large sample size was used, this could have been different as thsi could result in a significant difference between their mean scores.

8 0
3 years ago
The cheerleaders are making a banner that is 8 feet wide. The length of the banner is 1 1/3 times width of the banner. How long
eduard

Answer:

The banner is 10 2/3 ft long

Step-by-step explanation:

1 1/3 = 4/3 times the width of the banner:

4/3 * 8 feet wide = 4/3 * 8 = 32/3 = 10 2/3 feet long

The banner is 10 2/3 feet long. :)

3 0
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