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ElenaW [278]
3 years ago
13

WILL GIVE BRAINLIEST!!!!!

Mathematics
2 answers:
azamat3 years ago
7 0
1,2,4,8
start with 1 and then multiply by 2 repeatedly

50,40,30,20
start with 50 and then add -10 repeatedly
devlian [24]3 years ago
4 0
The answer is b for both questions
You might be interested in
1. In which quadrant or on which axis do each of the points (-2,4) , (3,-1) ,(-1,0), (1,2) and (-3,-5) lie? Verify your answer b
pashok25 [27]

Point (-2 , 4) lies in the 2nd quadrant

Point (3 , -1) lies in the 4th quadrant

Point (-1 , 0) lies on the negative part of the x-axis

Point (1 , 2) lies in the 1st quadrant

Point (-3 , -5) lies in the 3rd quadrant

Step-by-step explanation:

Let us revise the signs of the coordinates in each quadrant

  • x and y coordinates are positive in the 1st quadrant
  • x-coordinate is negative and y-coordinate is positive in the 2nd quadrant
  • x and y coordinates are negative in the 3rd quadrant
  • x-coordinate is positive and y-coordinate is negative in the 4th quadrant
  • The general point on the positive part of x-axis is (x , 0), and on the negative part of x-axis is (-x , 0)
  • The general point on the positive part of y-axis is (0 , y), and on the negative part of y-axis is (0 , -y)

Now let us check the points

Point (-2 , 4) ⇒ red point

∵ x = -2 and y = 4

∵ x-coordinate is negative and y-coordinate is positive

∴ Point (-2 , 4) lies in the 2nd quadrant

Point (3 , -1) ⇒ blue point

∵ x = 3 and y = -1

∵ x-coordinate is positive and y-coordinate is negative

∴ Point (3 , -1) lies in the 4th quadrant

Point (-1 , 0) ⇒ green point

∵ x = -1 and y = 0

∵ x-coordinate is negative and y-coordinate is zero

∴ Point (-1 , 0) lies on the negative part of the x-axis

Point (1 , 2) ⇒ purple point

∵ x = 1 and y =2

∵ x and y coordinates are positive

∴ Point (1 , 2) lies in the 1st quadrant

Point (-3 , -5) ⇒ black point

∵ x = -3 and y = -5

∵ x and y coordinates are negative

∴ Point (-3 , -5) lies in the 3rd quadrant

<em>Look to the attached graph for more understand</em>

Learn more:

You can learn more about the four quadrant in brainly.com/question/9381523

#LearnwithBrainly

5 0
3 years ago
What is the area of the kite below.<br> 15 m<br> D<br> 3 m<br> 3 m<br> 12 m<br> С
ohaa [14]

Answer:

51 meters

Step-by-step explanation:

The area can be found by adding the areas of all the triangles. The top right triangle has an area of 7.5. The bottom right triangle has an area of 18. The bottom left, also has an area of 18. And finally, the top left which has an area of 7.5. 18 + 18 + 7.5 + 7.5 = 51.

5 0
3 years ago
Read 2 more answers
A safety regulation states that the height hh of a guardrail should be 106 centimeters with an absolute deviation of no more tha
AlexFokin [52]
Well 106 divided by 7 is 15 so 15 times 7 is 106
6 0
3 years ago
Asha ran a race in 20.7 seconds. Katie ran the same race 0.25 seconds faster. how fast did Katie run the race?
DaniilM [7]

Hey there!

Answer:\boxed{20.95}

Explanation:

To find the answer, we can add up the time from both people.

20.7(20.70)+0.25=20.95

\boxed{20.95}\text{ is your answer.}

Hope this helps!

\text{-TestedHyperr}

4 0
3 years ago
If a=bc, b=ca, c=ab find abc
Svetradugi [14.3K]
Fill in (2) in (1):

a=cca => c^2=1 => c=+1 or c=-1

Fill in (3) in (2)

b=aba => a^2=1 => a=+1 or a=-1

same for (1) in (2): b=+1 or b=-1

To satisfy all conditions at the same time, a, b and c all have to be +1 OR any two of them must be negative (e.g., a=b=-1, c=+1).

In all cases, abc=1
7 0
3 years ago
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