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3 years ago

Please answer correctly! I will mark Brainliest!

Mathematics

1 answer:

DerKrebs [107]3 years ago

8 0

Answer:

Mind Making A New So We Can Help?

Step-by-step explanation:

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-3x - y =1<br> 4x + 5y = 6

Gwar [14]

Answer: it equals 1

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

You suspect that the spiciness of food served in a restaurant is positively correlated with number of soft drinks ordered. What

Sergio039 [100]

You would then ask the customers for their opinion on the heat and how much drinks they order

3 0

3 years ago

Pentagon TEXAS has vertices at T(1, 8), E(3, 8), X(6, 2), A(3, 2), and S(1, 4). What is the area of Pentagon TEXAS?

Tamiku [17]

The area of the pentagon is 19 square units

The coordinates of the pentagon are given as:

$T = (1, 8)$

$E =(3, 8)$

$X =(6, 2)$

$A=(3, 2)$

$S = (1, 4)$

The area of the pentagon is then calculated using:

$Area = \frac 12|(x_1y_2+x_2y_3+x_3y_4+x_4y_5+x_5y_1) -(y_1x_2+y_2x_3+y_3x_4+y_4x_5+y_5x_1)|$

So, we have:

$Area = \frac 12|(1 \times 8 +3 \times 2+6\times2+3 \times 4 + 1 \times 8) -(8\times3+8\times6+2\times3+2\times1+4\times1)|$

Simplify the expressions in both brackets

$Area = \frac 12|46 -84|$

$Area = \frac 12|-38|$

Remove absolute bracket

$Area = \frac 12 \times 38$

$Area = 19$

Hence, the area of the pentagon is 19 square units

Read more about areas at:

brainly.com/question/1423568

7 0

2 years ago

Evaluate 15r -1 when r=5

alukav5142 [94]

Answer:

Step-by-step explanation:

You just have to substitute r with 5.

Now, the equation looks like this:

$15(5)-1$

Next, solve $15*5$ first according to PEMDAS

And $15*5$ equals 75

$\frac{\left[\begin{array}{ccc}1&5\\5\\\end{array}\right] }{75}$

Lastly, do $75-1$ which equals 74

$\frac{\left[\begin{array}{ccc}7&5\\-1\\\end{array}\right] }{74}$

Therefore, 74 is your answer.

3 0

3 years ago

3x + y = 23<br> 3x - 2y = 8

sergey [27]

Answer:

Step-by-step explanation:

difference in y is 3

difference in answer is 15

15 divided by 3 is 5

4 0

4 years ago