All categories

3 years ago

Find the m A. 100 B.143 C. 38 D. 25

Mathematics

1 answer:

Ainat [17]3 years ago

3 0

Answer:

143 degrees.

Step-by-step explanation:

m < A + m < B = 180 degrees. ( inside angles of a parallelogram). So:-

4x - 9 + x - 1 = 180

5x - 10 = 180

5x = 190

x = 38

So m < A = 4(38) - 9

= 143 degrees.

You might be interested in

The Energy Information Administration records the price of electricity in the United State each month. In July 2013, the average

saw5 [17]

Answer:

89% of the time that average price of electricity is expected to be in the interval from 5.62 cents per kw-h to 18.22 cents per kw-h

Step-by-step explanation:

Chebyshev's inequality states that:

When K = 2, 75% of the data is within two standard deviations of the mean

When K = 3, 89% of the data is within 3 standard deviations of the mean

In this problem, we have that:

Mean = 11.92 cents per kw-h

Standard deviation = 2.1 cents per kw-h

What can you determine about these data by using Chebyshev's Inequality with K=3?

3 standard deviations below the mean

11.92 - 3*2.1 = 5.62 cents per kw-h

3 standard deviations above the mean

11.92 + 3*2.1 = 18.22 cents per kw-h

So you can determine that 89% of the time that average price of electricity is expected to be in the interval from 5.62 cents per kw-h to 18.22 cents per kw-h

6 0

3 years ago

PLEASE PLEASE PLEASEE PLEASEEEEESE HELPME!?!?!? IM SO BAD AT MATH PLEASE HELP!!!

Fiesta28 [93]

For this case we have the following function:
$f (x) = 0.01 * (2) ^ x
$
By definition, the average rate of change is given by:
$AVR = \frac{f(x2) - f(x1)}{x2 - x1}$
We evaluate the function for the given values:
For x = 7:
$f (7) = 0.01 * (2) ^ 7

f (7) = 1.28$
For x = 14:
$f (14) = 0.01 * (2) ^ {14} f (14) = 163.84$
Then, replacing values we have:
$AVR = \frac{163.84 - 1.28}{14 - 7}$
$AVR = 23.22$
Answer:
the average rate of change from x = 7 to x = 14 is:
a. 23.22

7 0

3 years ago

2. Estimate the square root of the following

In-s [12.5K]

Answer:

1..9.9

2....23.9

3...106.9

4....21.8

7 0

3 years ago

Read 2 more answers