All categories

3 years ago

I don’t understand this

Mathematics

1 answer:

loris [4]3 years ago

3 0

Answer:

62°

Step-by-step explanation:

The vertex angle is half the difference of the intercepted arc angles.

∠A = ½ (CE − BD)

x = ½ (4x − 10 − 26)

x = ½ (4x − 36)

x = 2x − 18

18 = x

Therefore, the measure of CE is:

4(18) − 10 = 62

You might be interested in

Miles purchased 5/6 lbs. of bananas, Phillip purchased 8/9 lbs. of oranges.

Sav [38]

They purchased a total of 1 13/18 pounds.

5 0

3 years ago

Read 2 more answers

What is the average rate of change of f(x) = -x2 + 3x + 6 over the interval –3

Rufina [12.5K]

Answer:

$\frac{\Delta y}{\Delta x} =\frac{f(x_2)-f(x_1)}{x_2-x_1} =\frac{6-(-12)}{3-(-3)} =\frac{18}{6}= 3$

Step-by-step explanation:

To find the average rate of change of a function over a given interval, basically you need to find the slope. The mathematical definition of the slope is very similar to the one we use every day. In mathematics, the slope is the relationship between the vertical and horizontal changes between two points on a surface or a line. In this sense, the slope can be found using the following expression:

$Average\hspace{3}rate\hspace{3}of\hspace{3}change=Slope=\frac{y_2-y_1}{x_2-x_1} =\frac{f(x_2)-f(x_1)}{x_2-x_1}$

So, the average rate of change of:

$f(x)=-x^2+3x+6$

Over the interval $-3$

Is:

$f(x_2)=f(3)=-(3)^2+3(3)+6=-9+9+6=6\\\\f(x_1)=f(-3)=-(-3)^2+3(-3)+6=-9-9+6=-12$

$\frac{\Delta y}{\Delta x} =\frac{f(x_2)-f(x_1)}{x_2-x_1} =\frac{6-(-12)}{3-(-3)} =\frac{18}{6}= 3$

Therefore, the average rate of change of this function over that interval is 3.

3 0

2 years ago

Keith receives $25000 salary for working as a account. If keith spends 40% of his salary on expenses each year, then how much mo

Scrat [10]

Answer:

$25000 * 40% = 100.000

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

234.2 in expanded form

avanturin [10]

Answer:

Expanded Notation Form:

234.2

200

0.2

Expanded Factors Form:

234.2

2 ×

100

3 ×

4 ×

2 ×

0.1

Expanded Exponential Form:

234.2 =

2 × 102

3 × 101

4 × 100

2 × 10-1

Word Form:

234.2 =

two hundred thirty-four and two tenths

8 0

3 years ago

The table shows information about the numbers of hours 30 children spent on their tablets one evening.A) Find the class interval

Tresset [83]

Answer:

A- 2<h<3 B- 2.2

Step-by-step explanation:

when you make a dot plot, the median is 11. using that dot plot, you can approximate a mean to be around 2

8 0

3 years ago