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masha68 [24]
3 years ago
14

Given: AD diameter of Circle P.

Mathematics
2 answers:
ANEK [815]3 years ago
4 0

Answer:

B. 140^{\circ}

Step-by-step explanation:

We have been given an image of a circle. We are asked to find the measure of arc BC.

We know that full arc measure of semicircle is 180 degrees. Since AD is diameter of our given circle, so we can set an equation to find measure of arc BC as:

\angle 1+\angle 3+\text{Arc BC}=180^{\circ}

Upon substituting the given measure of angles, we will get:

20^{\circ}+20^{\circ}+\text{Arc BC}=180^{\circ}

40^{\circ}+\text{Arc BC}=180^{\circ}

40^{\circ}-40^{\circ}+\text{Arc BC}=180^{\circ}-40^{\circ}

\text{Arc BC}=140^{\circ}

Therefore, the measure of arc BC is 140 degrees and option B is the correct choice.

Law Incorporation [45]3 years ago
3 0

b)140
20 + 20 = 40 \\ 180 - 40 = 140
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Which ordered pair is generated from the equation shown below? y = 2x + 4 A. (1, 6) B. (1, 2) C. (3, 6) D. (8, 16)
USPshnik [31]

Answer:

The ordered pair generated from the equation is (1, 6).

Step-by-step explanation:

An ordered pair is a pair of numbers, representing two variables, in a specific order. For instance, (<em>x</em>, <em>y</em>) = (1, 2) here <em>x</em> = 1 and <em>y</em> = 2.

The equation provided is:

y=2x+4

Check for all the options:

  • A (1, 6): y=2x+4\Rightarrow\ 6=(2\times 1) +4\Rightarrow\ 6=6
  • B (1, 2): y=2x+4\Rightarrow\ 2=(2\times 1) +4\Rightarrow\ 2\neq 6
  • C (3, 6): y=2x+4\Rightarrow\ 6=(2\times 3) +4\Rightarrow\ 6\neq10
  • D (8, 16): y=2x+4\Rightarrow\ 16=(2\times 8) +4\Rightarrow\ 16\neq20

Thus, the ordered pair generated from the equation is (1, 6).

8 0
3 years ago
What is the answer to this algebra 1 answer : 6&gt; 4-2×&lt;4
Artist 52 [7]
6>4-2x<4

so therefor (4x-2) must be less than 6 and less than 4
it must be
6>4-2x and 4<4-2x
find the intersection

6>4-2x
add 2x to both sides
6+2x>4
subtract 6
2x>-2
divide by 2
x>-1



4>4-2x
add 2x
4+2x>4
subtract 4
2x>0
x>0




so we have
x>0
and x>-1
the range of x>-1 includes most of x>0 so the answer is
x>-1

6 0
3 years ago
Please help
Drupady [299]

Answer:

56°

Step-by-step explanation:

2x+3x+5=90

5x=90-5

5x=85

x=85÷5

x=17

m<2=3x+5=3(17)+5=51+5=56

3 0
3 years ago
4. A typical smartphone battery (yes that includes iphones) degrades at approximately 1%
Zielflug [23.3K]

Answer:

a. f(t) = (0.99)^{t} 100%\\

b. The x - intercept represents the time at which the battery life drops to 0 %.

c. The y - intercept represents the initial battery life.

Step-by-step explanation:

a. Construct an equation using f(t) and t that represents the relationship between

"f(t)" the battery capacity of a typical smartphone after "t" months and "L" the

number of months the smartphone has been in normal use.

Let the initial battery life be I.

After one month, it decreases by 1%. So, our new value, I' = initial value - decrease = I - 1%I = 99%I.

After two months, it decreases by 1% to our new value I". So, our new value, I" = initial value - decrease = I' - 1%I' = 99%I' = 99%(99%)I = (99%)²I

After three months, it decreases by 1% to our new value I'". So, our new value, I"' = initial value - decrease = I" - 1%I" = 99%I" = 99%(99%)²I = (99%)³I

We see a pattern here.

After t months, f(t)

f(t) = (0.99)^{t} 100%\\

b. What does the horizontal intercept represent in context? (The x-intercept)

The x - intercept represents the time at which the battery life drops to 0 %.

c. What does the vertical intercept represent in context? (The y-intercept)

The y - intercept represents the initial battery life.

5 0
3 years ago
There is a 4 sided shape formed from the circle centers and the 2 intersections of the white circles. What must this shape alway
IceJOKER [234]
It’s a cylinder !!
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6 0
3 years ago
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