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erastovalidia [21]
3 years ago
12

What is the measure of angle x? Enter your answer in the box. m∠x= °

Mathematics
2 answers:
raketka [301]3 years ago
6 0
102+31=133
180-133 because 180 is the total angle of a triangle=47
ra1l [238]3 years ago
4 0
All angles add to 180 in a triangle. So 180 - 102 - 31 =47
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participar de uma maratona um atleta inicia um treinamento mensal, em que corre todo dia e sempre 2 minutos a mais do que correu
AleksandrR [38]

Answer:

59 minutes

Step-by-step explanation:

In the table of values ​​it is observed that for each day of training 2 minutes are increasing and that day 1 begins with 5 minutes of training , so

y(x)=2\frac{min}{d}(x)+3min, where x= evaluation day

we have to for the day 28

y(28)=2\frac{min}{d}(28d)+3min=59min

7 0
3 years ago
Graph the image of the given triangle under a dilation with a scale factor of −2 and center of dilation (0, 0) .
Ronch [10]

To dilate an object means to enlarge or reduce the size of the object. The scale factor will determine how much larger or smaller the object will become.  If this factor is greater than 1, the object will increase in size. Otherwise, if the factor is less than 1, the object will decrease in size. So, the dilated object will be similar to its original. On the other hand, when corresponding points of the original and dilated figures are connected by straight lines, the center of dilation is the point where all the lines meet. In this problem, the center is (0, 0). When the center is the origin we need to multiply all the original coordinates of the object by the scale factor given. So:


A(-4, 1) \rightarrow A'=-2(-4,1) \rightarrow A'(8,-2) \\ \\ B(-3, -4) \rightarrow B'=-2(-3,-4) \rightarrow B'(6,8) \\ \\ C(-2, -2) \rightarrow C'=-2(-2,-2) \rightarrow C'(4,4)


So, the graph of the dilated triangle is shown in the Figure below

8 0
3 years ago
Read 2 more answers
I just need lol. jdjdj​
irakobra [83]

Answer:

21

Step-by-step explanation:

trust bro

3 0
2 years ago
Please help me pleasssseeee <3
Sophie [7]

Answer:

1st ans

(8x+19)=(9x+9)(vertically opposite angle)

19-9=9x-8x

x=10

2nd ans

(3x-31)=(x+59)(exterior alternate angle)

3x-x=59+31

2x=90

x=90/2

x=45

3rd ans

(5x-33)+(6x+4)=180(straight angle )

11x-29=180

11x=180+29

x=209/11

x=19

8 0
3 years ago
I need help with these three problems (college algebra)
Paraphin [41]

5. After 6 hours, the concentration is halved. After 12 hours, it will be quartered. If the original concentration is 200 nmol, a quarter is 50 nmol.

14. The population doubles after 3 hours, and a day is 24 hours. That means that the original population should be multiplied by 2^{24/3}, or 2^8. 3 million times 2^8 is 3 * 256 million, or 768 million.

15. The concentration is halved every 8 hours and the original concentration is 100 nmol. So now, how many times do you halve 100 to get to 12.5?

100/2 = 50, 50/2 = 25, 25/2 = 12.5. That's three times. 3 * 8 is 24 hours, or 1 day.

8 0
3 years ago
Read 2 more answers
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