All categories

3 years ago

Hi im new and i need help picture below, please help, thank you :)

Mathematics

1 answer:

lbvjy [14]3 years ago

8 0

Answer:

x = 80 degrees

Step-by-step explanation:

y degrees = 180 - 55 - 45 (Angles in a triangle add up to 180 degrees)

y degrees = 80 degrees

x = y (Vertically opposite angles are equal)

So,

x = 80 degrees

You might be interested in

Ella has a points card for a movie theater.

MAXImum [283]

Answer:

175<=12.5x+40

Step-by-step explanation:

She starts with 40 points already so you add in those 40 then since she gets 12.5 points per visit that is your x, so you set that as greater than or equal to 175

7 0

3 years ago

Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator.

Oksi-84 [34.3K]

3/3...............................

8 0

2 years ago

Help with 694 = x10<br><br> and its says write it in scientific notation

nikitadnepr [17]

Answer:

a = 6.94

b = 2

Now the whole thing:

6.94 x 102

Check your work:

102 = 100 x 6.94 = 694

Hope this helped!!!

~BBGLUVER

7 0

2 years ago

Read 2 more answers

Aiden borrows a book from a public library. He read a few pages on day one. On day two, he reads twice the number of pages than

Thepotemich [5.8K]

Answer:

Step-by-step explanation:

6 0

2 years ago

Phonics is an instructional method in which children are taught to connect sounds with letters or groups of letters. A sample of

natali 33 [55]

Answer:

98% confidence interval: (29.25,38.87)

Step-by-step explanation:

We are given the following in the question:

Sample mean, $\bar{x}$ = 34.06

Sample size, n = 134

Sample standard deviation, s = 23.83

a) 98% confidence interval

$\bar{x} \pm z_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.02} = \pm 2.33$

$34.06 \pm 2.33(\frac{23.83}{\sqrt{133}} ) = 34.06 \pm 4.81 = (29.25,38.87)$

b) If a 95% confidence interval were constructed with these data, confidence interval would be narrower as the confidence level is decreasing as compared to 98%

c) If a sample of 150 students had been studied, the width of confidence interval will decrease as the sample size increases.

8 0

3 years ago