1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Dominik [7]
3 years ago
8

Help with Math homework

Mathematics
1 answer:
coldgirl [10]3 years ago
6 0

You were doing everything correctly! Keep in mind that a straight line is 180 degrees and a triangle has 180 degrees, because I see that some of your questions involve lines.

also remember vertical angles! If you have any specific question, I would be happy to help!


You might be interested in
Convert 208 in base 10 to binary number​
Ostrovityanka [42]

Step-by-step explanation:

208

= 128 + 64 + 16

= 1 * 2⁷ + 1 * 2⁶ + 1 * 2⁴

= 11010000. (base 2)

3 0
3 years ago
Suri solved the equation x squared = 49 and found that x=7. What error did Suri make?
Anastaziya [24]

Answer:

x = \frac{+}{-} 7

Step-by-step explanation:

x^{2} = 49

\sqrt{49} can equal 7 or -7

7 x 7 = 49.  -7 x -7 = 49

7 0
3 years ago
30 random samples of high school students were asked if they played a sport for their high school. Each sample was 20 students.
Ludmilka [50]

Answer:

<em>a. This option is correct</em>

<em>b. This will be true only if we take the </em><em>mode</em><em> as the best representative value </em>

c. <em>This is a correct choice</em>

<em>d. This is not a correct choice</em>

Step-by-step explanation:

<u>Statistics</u>

We are given a dot plot representing 30 random sample proportions of high school students about their sports activities. Based on the data extracted from the plot, we can make some basic conclusions and, less accurately, some predictions.

From the data plot we can see that the following proportions were obtained, along with their absolute frequencies:

0.05 -> 3

0.10 -> 8

0.15 -> 7

0.20 -> 5

0.25 -> 4

0.30 -> 2

Let's select which of the following options are correct

a. A sample proportion of 0.20 means that 4 of 20 high school students responded that they play a sport.

The ratio between the sport playing students to the total of high school students is

\displaystyle \frac{4}{20}=\frac{1}{5}=0.20

Thus, this statement is correct.

b. The best prediction for the proportion of all high school students that play a sport is 0.10.

This will be true only if we take the mode as the best representative value for the whole dataset. Personally, I don't like to trust the mode as a good central tendency result, I'd prefer the mean instead.

c. The mean of the 30 sample proportions calculated to the nearest hundredth is 0.16

Computing the mean of the sample proportions

\displaystyle \bar x=\frac{\sum x_i.f_i}{\sum f_i}

\displaystyle \bar x=\frac{0.00\cdot 1+0.05\cdot 3+0.10\cdot 8+0.15\cdot 7+0.20\cdot 5+0.25\cdot 4+0.30\cdot 2}{1+3+8+7+5+4+2}

\bar x\approx 0.16

<em>This is a correct choice</em>

d. The shape of the sample distribution is fairly symmetrical

We can see the distribution if left-skewed because its peak value is not at the mean value. The mode and the mean are fairly different, thus this choice is not correct

5 0
3 years ago
Read 2 more answers
an apple and a banana cost $2.10 the apple is $2.00 more than the banana how much does the banana cost
Korolek [52]
$2.10 - $2 = $0.10

The banana cost 10 cents.
8 0
2 years ago
Find x<br> You use the law of sines and that’s all I know dawg
mars1129 [50]

Answer:

Was dis a question or an answer, dawg??

7 0
2 years ago
Other questions:
  • Determine the slope of the line that passes through each pair of points. <br>A (0,1) ,B (2,7)
    6·1 answer
  • Can someone please help!! I’m giving 15 points away for it!
    9·1 answer
  • Emily needs to buy fabric to make curtain panels for her windows. Each panel will be 4 feet long and 1/2 foot wide. Each piece o
    5·2 answers
  • Help please i really need help with this problem it’s so hard please please help
    12·2 answers
  • Evaluate n2-m; use m=7, and n=8
    5·2 answers
  • What is 25 percent of thirty?<br> Give Step by step explanation.<br> please.
    14·2 answers
  • 72<br> as a product of prime factors.
    14·1 answer
  • Perform the calculation then round of the appropriate number of significant digits <br> 4.492 ÷ 1.24
    11·1 answer
  • What is the fraction of this question plz help me
    8·1 answer
  • Which is a function?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!