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Sergio039 [100]
3 years ago
15

Question 2 help pls

Mathematics
2 answers:
KengaRu [80]3 years ago
7 0
X=-2
5-4=1
so whatever is square rooted must be equal to 1
1 squared is 1
-2+3 is one
UNO [17]3 years ago
7 0

Answer:

(\sqrt{x+3} )^{2} + 4^{2} = 5^{2}

x + 3 + 16 = 25

x + 19 = 25

x = 6

<em>hope it helps.</em>

Also, I think that Brainly is an awesome app, but there's an app which is doing great work for me in maths, named Gauthmath. I will suggest it. Video concepts and answers from real tutors.

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HELP LOOK AT THE SCREENSHOT<br><br> Find the value of x. (SHOW WORK)
Vanyuwa [196]

Answer:  x = 2

=============================================================

Explanation:

Refer to the diagram below.

I've added points D,E,F,G. This helps with labeling the segments and angles, and identifying the proper triangles (to see which are congruent pairs).

Triangle GEA is congruent to triangle GFA. We can prove this using the AAS congruence theorem. We have AG = AG as the pair of congruent sides, and the congruent pairs of angles are marked in the diagram (specifically the blue pairs of angles and the gray right angle markers)

Since triangle GEA is congruent to triangle GFA, this means the corresponding pieces segment GF and GE are the same length.

The diagram shows GF = 3x-4, so this means GE = 3x-4 as well.

----------------------

Through similar steps, we can show that triangle GEC is congruent to triangle GDC. We also use AAS here as well.

The congruent triangles lead to GD = GE. So GD = 3x-4. The diagram shows that GD = 6x-10

Since GD is equal to both 3x-4 and 6x-10, this must mean the two expressions are equal.

----------------------

Now let's solve for x

6x-10 = 3x-4

6x-3x = -4+10

3x = 6

x = 6/3

x = 2

4 0
3 years ago
The same number of people live on the islands Beautiful Sunrise and Gorgeous
aev [14]

Using the percentage concept, it is found that 75% of the population of Gorgeous Sunset is on Beautiful Sunrise now.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = \frac{a}{b} \times 100\%

In this problem, we have that:

  • We consider that the population of both Beautiful Sunrise and Gorgeous Sunset islands is of x.
  • There is a fiesta at Beautiful Sunrise, and a number a of people from Gorgeous Sunset are coming, hence, there will be x + a people at Beautiful Sunrise and x - a people t Gorgeous Sunset.

The percentage of people from Gorgeous Sunset is on Beautiful Sunrise now is:

P = \frac{a}{x} \times 100\%

Now the number of people on Beautiful Sunrise is seven times the number of people on Gorgeous Sunset, hence:

\frac{x + a}{x - a} = 7

We can find a <u>as a function of x</u> to find the percentage:

\frac{x + a}{x - a} = 7

7(x - a) = x + a

7x - 7a = x + a

8a = 6x

a = \frac{3x}{4}

Then, the percentage is:

P = \frac{a}{x} \times 100\%

P = \frac{\frac{3x}{4}}{x} \times 100\%

P = \frac{3}{4} \times 100\%

P = 75\%

75% of the population of Gorgeous Sunset is on Beautiful Sunrise now.

You can learn more about the percentage concept at brainly.com/question/10491646

7 0
2 years ago
In 5 - 7 complete sentences, answer all of the following question. •Use this image to respond to the following prompt: •Is the s
kaheart [24]

Answer:

positive slope

(0,3)

slope = 2

Step-by-step explanation:

  • Slope of the given line is positive
  • If the line is sloping upward from left to right, so the slope is positive (+).

or if the angle made by the line to the x axis is < 90 it's slope is positive.

  • y-intercept of the line is (0,3)
  • The y intercept is the point where the line crosses the y axis. At this point x = 0.
  • slope of the line is 2
  • slope = (y2 - y1) / (x2 - x1)

    lines passing through points (1,5) (0,3)

    slope = (3 - 5) / (0 - 1)

              = -2 / -1 = 2  

7 0
3 years ago
Read 2 more answers
What is the slope of the line given by the equation below? y = -2x + 8
shusha [124]

Follow the "<em>y = mx + b</em>" formula, in which "m", stands for slope, and "b" stands for y-intercept


m = slope

m is located to the left attached to x.


-2 is in the place of m, therefore, -2 is the slope of the equation given.


-2 is your answer


hope this helps

7 0
3 years ago
Read 2 more answers
In the form of the matrice, how do you work out the following simultaneous equation?
lapo4ka [179]
\left[\begin{array}{ccc}1&3&7\\1&1&1\end{array}\right]
multiply 2nd row by -1 and add to first row
\left[\begin{array}{ccc}0&2&6\\1&1&1\end{array}\right]
divide the 1st row by 2
\left[\begin{array}{ccc}0&1&3\\1&1&1\end{array}\right]
multiply the first row by -1 and add to 2nd row
\left[\begin{array}{ccc}0&1&3\\1&0&-2\end{array}\right]

now we know
y+3=0
x-2=0

therefor
y=-3
x=2
4 0
3 years ago
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