All categories

3 years ago

How does one do this? I’ve tried and still can’t get it please help

Mathematics

1 answer:

professor190 [17]3 years ago

6 0

Answer:

Step-by-step explanation:

An angle bisector cuts an angle into two equal parts. So m∠ACE = m∠ECB.

m∠ACE = m∠ECB

2x − 15 = x + 5

x = 20

You might be interested in

The average (arithmetic mean) of the 43 numbers in list L is a positive number. The average of all 48 numbers in both lists L an

skelet666 [1.2K]

Answer:

$33\frac{1}{3} \%$

Step-by-step explanation:

Given:

The average (arithmetic mean) of the 43 numbers in list L is a positive number.

The average of all 48 numbers in both lists L and M is 50 percent greater than the average of the 43 numbers in list L.

Question asked:

What percent greater than the average of the numbers in list L is the average of the numbers in list M?

Solution:

As the total number of observation in both list = 48

And the number of observation in list L = 43

Then, the number of observation in list M = 48 - 43 = 5

Let the average of the 43 numbers in list L = 100

Then the average of all 48 numbers in both lists L and M = $100+ 100\times50\%$

$=100+100\times\frac{50}{100} \\= 100+\frac{5000}{100} \\= 100+50 = 150$

The average of the numbers in list M = 150 - 100 = 50

To find percent greater than the average of the numbers in list L in compare to average of the numbers in list M,

Average of the numbers in list L - average of the numbers in list M divided by the average of all 48 numbers in both lists L and M multiplied by 100

$=\frac{100-50}{150} \times100\\\ =\frac{50}{150} \times100\\=\frac{5000}{150} = 33\frac{1}{3} \%$

Thus, $33\frac{1}{3} \%$ greater than the average of the numbers in list L is the average of the numbers in list M.

6 0

3 years ago

What would this number be rounded to the thousands place ?

Vsevolod [243]

you asked what would a number be rounded to the thousands place but you haven't mentioned the number?

4 0

2 years ago

Learning task 3:solve the following.....

Alexus [3.1K]

Answer:

I don't know what is this

7 0

2 years ago

Suppose a sociologist studying the sleep habits of teenagers in the U.S. randomly surveyed 1873 teenagers. Of those, 297 teenage

dem82 [27]

$\hat{p}=p\pm\frac{\sqrt{p(1-p)}}{\sqrt{n}}\\p=\frac{297}{1873}=0.1586\\ \hat{p}=0.1586\pm\frac{\sqrt{0.1586(1-0.1586)}}{\sqrt{1873}}\\=0.1586\pm\frac{\sqrt{0.1586(0.8414)}}{43.2782}}\\=0.1586\pm\frac{\sqrt{0.1334}}{43.2782}}\\=0.1586\pm\frac{0.3653}{43.2782}}\\=0.1586\pm0.0084$

5 0

3 years ago

Use the Distributive Property to simplify the expression.<br> 8(5g+5−2)=

Vaselesa [24]

You multiply the number 8 to each term in the parentheses. 8 x 5g = 40g; 8 x 5 = 40; 8 x (-2) = -16 Combine these together and it would be 40g + 40 - 16

5 0

2 years ago

Read 2 more answers