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AfilCa [17]
3 years ago
15

What number times itself to be 49

Mathematics
2 answers:
alisha [4.7K]3 years ago
8 0
The number 7 times itself equals the number 49.
Aneli [31]3 years ago
4 0

Step-by-step explanation:

x × x = 49 there are two values for x

1) 7 because 7 × 7 = 49

2) -7 because -7 × -7 = 49 the square value for negative numbers is positive.

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When navigating the maze, the robot will only need to go north, south, east, and west. it can be useful to use the complex plane
klio [65]

The values represent the robot facing east, south, and west are 1, -i, -1.

<h3>What was the meaning of puzzle?</h3>

To offer or represent to (someone) a problem difficult to solve or a situation difficult to resolve : challenge mentally also : to exert (oneself, one's mind, etc.) over such a problem or situation they puzzled their wits to find a solution.

given that,

The robot can only go north, south, east and west.

Assuming that the north-south axis corresponds to the y-axis and west-east axis corresponds to x-axis.

Now,

It is provided that the ' i ' represent that robot is facing north.

So, if the robot turns and faces south, it can be seen that he will be facing in the opposite direction of ' i '.

Since, the values on y-axis are negative in that direction.

Hence, South will be represented by ' - i ' .

Moreover, it is given that we use only the numbers whose magnitude is 1. As, west-east axis represents x-axis.

So, the value that represents East will be 1.

(as it is on the positive x-axis ).

Since, west is in the opposite direction of east.

So, West will be represented by -1.

Hence,The values represent the robot facing east, south, and west are 1, -i, -1.

To learn more about puzzle from the given link:

brainly.com/question/16999211

#SPJ4

7 0
2 years ago
If dh = 3x-3 and fh=x+7 find the value of x for which defg must be a parallelogram
Dahasolnce [82]
Is there an image or more info given??
I'm not sure I follow this as it's asked.
5 0
3 years ago
Read 2 more answers
Why is the answer B? Plz explain
evablogger [386]
I wonder what the best way of explaining this is? You could graph the results for each choice. Or you could reason it out. 

The first thing you have to do it deal with y = 3. Draw a really crude graph like a set of axis. Make the y values go from -5 to + 5. x for the moment does not matter. 

Draw a horizontal line through y = 3 or going through the point (0,3). Now here's the catch and you're going to have to read it very carefully.

Condition One
If a>0 then the graph opens upward and b is going to have to be less than 3. That sentence is an absolute nightmare. Think carefully about what a>0 means. Make it 2 and draw a rough graph opening upward on the crude axis you have drawn. b is the y value of the minimum, so that minimum has to be less than 3.  Are there any point like that? The two points where a>0 are C and D. 

C
The lowest point that C will hit is 4.  That's not good enough. b = 4 is the lowest y value. C is not the answer

D 
The lowest point is 3. The graph will just touch y = 3. That's not good enough either. Touching y = 3 does not produce 2 roots. It produces just one.

Condition Two
a < 0 Here the graph opens downward. It means the a<0 and b>3. You need to look at A or B. Which point does that? A has a maximum below 3. It's no good. A is wrong.

So the answer must be B. a<0 and b>3. Right on 2 solutions.
7 0
3 years ago
Read 2 more answers
How do you divide 9/4 divided by 10/3
NeTakaya

Answer:

You do (Keep, Change, Flip)

so you keep 9/4

Then change the division sign to multiplication sign

Finally flip the next fraction (10/3) becomes 3/10

9/4 * 3/10 = (9*3)/(4*10) = 27/40

4 0
3 years ago
(c) One lorry travels from your town to another town. The lorry reaches a top speed
Katen [24]

Answer:

The average speed is 24 km/h less than the top speed of the lorry.

Step-by-step explanation:

The top speed of the lorry is the highest speed reached during transit, while its average speed is the mean speed attained

Given:.

Top speed of the lorry = 90 km/h

Average speed of the lorry = 66 km/h

Then,

The difference between the speed reached = top speed - average speed

                                            = 90 - 66

                                            = 24 km/h

Therefore, the average speed is 24 km/h less than the top speed of the lorry.

8 0
3 years ago
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