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allsm [11]
3 years ago
5

Please help!! 20 points

Mathematics
2 answers:
Sav [38]3 years ago
8 0

Answer:

i believe it would be 16.

Step-by-step explanation:

Daniel [21]3 years ago
7 0

Answer:

Answer is x = 14.665 which rounded off is 14.67

All I did was Cos 39 = x / 55

0.26664293236 = x / 55

0.26664293236 × 55 = x

x = 14.665

x = 14.67

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I don't understand this...
romanna [79]

The measurement of angles are :

  • Angle 1 is 123°
  • Angle 2 is 57°
  • Angle 4 is 123°
  • Angle 5 is 123°
  • Angle 6 is 57°
  • Angle 7 is 57°
  • Angle 8 is 123°

Given,

The figure with parallel lines.

Angle 3 is given as 57°

We have to find the other angles.

  • The measure of angle 1;

∠1 + ∠3 = 180° ; Sum of transversal angles is 180°

So,

∠1 = 180 - 57 = 123°

  • The measure of angle 2;

∠2 = ∠3 ; Vertical angles are ≅

So, ∠2 = 57°

  • The measure of angle 4;

∠1 = ∠4 ; Vertical angles are ≅

So, ∠4 = 123°

  • The measure of angle 5;

∠1 = ∠5 ; Corresponding angles are ≅

So, ∠5 = 123°

  • The measure of angle 6;

∠2 = ∠6 ; Corresponding angles are ≅

So, ∠6 = 57°

  • The measure of angle 7;

∠6 = ∠7 ; Vertical angles are ≅

So, ∠7 = 57°

  • The measure of angle 8;

∠5 = ∠8 ; Vertical angles are ≅

So, ∠8 = 123°

Learn more about angles here;

brainly.com/question/21867627

#SPJ1

8 0
1 year ago
Solve for x. 2x−5=−x+7
sasho [114]

Answer:

x = 4

Step-by-step explanation

2x−5+x=−x+7+x

3x−5=7

3x−5+5=7+5

3x=12

x=4

4 0
3 years ago
Read 2 more answers
Bob & Edith's Diner always has two types of pie on the dessert menu. Bob and
Delvig [45]

Answer: B&E

The answer is b and c I hope dat help

4 0
4 years ago
Read 2 more answers
In an effort to estimate the mean of amount spent per customer for dinner at a major Lawrence restaurant, data were collected fo
larisa86 [58]

Answer:

The 99% confidence interval for the population mean is 22.96 to 26.64

Step-by-step explanation:

Consider the provided information,

A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,

The confidence interval if 99%.

Thus, 1-α=0.99

α=0.01

Now we need to determine z_{\frac{\alpha}{2}}=z_{0.005}

Now by using z score table we find that  z_{\frac{\alpha}{2}}=2.58

The boundaries of the confidence interval are:

\mu-z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80-2.58\times \frac{5}{\sqrt{49}}=22.96\\\mu+z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80+2.58\times \frac{5}{\sqrt{49}}=26.64

Hence, the 99% confidence interval for the population mean is 22.96 to 26.64

3 0
4 years ago
Amy bought a bag of chips for 0.75, a sandwhich for 5.50, a bottle of water for 1.60. How much does amy have left from 10.
ch4aika [34]

Answer:

Amy would have 2.15 left

Step-by-step explanation:

To find out how much she has left, subtract the cost of the items from 10.

10 - 0.75 - 5.50 - 1.60 = 2.15

8 0
3 years ago
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