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Jlenok [28]
3 years ago
11

Plz help guys, it is a pretty easy sum​

Mathematics
2 answers:
RoseWind [281]3 years ago
7 0

Answer:

a3+13a

Step-by-step explanation:

sorry I don't know how to solve this

Natasha_Volkova [10]3 years ago
3 0

Answer:+-3

Explanation:

I added 4 on both side so that a^2+1/a^2-2 becomes a^2+1/a^2+2 which is Special products of (a^2+1/a^2).

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If you sleep 8 hours out of 24 hours, what percent of the time do you sleep?
olasank [31]

Answer:

It is 8/24 = 1/3 (~33.33%)

7 0
3 years ago
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What is the answer to the question
-BARSIC- [3]

Answer:

From top to bottom:

3

7

6

12

Step-by-step explanation:

You just simply add the number in the top row and the number in the column together.

2 + 1 = 3

4 + 3 = 7

2 + 4 = 6

6 + 6 = 12

5 0
3 years ago
What is the graph of the function rule?<br><br> y = 3x - 2<br><br> Choose from the pictures
bulgar [2K]

we have

y=3x-2

we know that

this is the equation of a line, to identify which is the graph we will proceed to determine the points of intersection with the coordinate axes

1) <u>Find the y-intercept</u>

the y-intercept is when the value of x is equal to zero

For x=0

find the value of y

y=3*0-2

y=-2

2) <u>Find the x-intercept </u>

the x-intercept is when the value of y is equal to zero

For y=0

find the value of x

0=3x-2

x=(2/3)

therefore

the answer is the option B ( see the attached figure)

5 0
3 years ago
Read 2 more answers
A survey of 1,000 men and women asked, "Do you earn over $50,000 per year?" The table below shows the responses for males and fe
frutty [35]
                                               Male    Female    Total
Income over $50,000         485        385         870
Income below $50,000        65           65        130
<span>Total                                       550        450       1,000

Probability of being male: 550/1000 = 0.55
Probability of earning over $50,000: 870/1000 = 0.87

0.55 x 0.87 = 0.4785

Probability of being male and earning over $50,000: 485/550 = 0.8818

</span><span>C) No, P(being male | the person earns over $50,000) ≠ P(being male)</span><span>


</span>
7 0
3 years ago
Read 2 more answers
I need to find the value of X
nirvana33 [79]

Answer:

17.7

Step-by-step explanation:

This figure is a pentagon - a shape with 5 sides. In a pentagon, the figure's angles add to 540.

100 + 7x-4 + 3x + 23 + 9x - 6 + 90 = 540

190 +19x + 13 = 540

203 + 19x = 540

19x = 337

x = 17.7

3 0
3 years ago
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