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4 years ago

Find m angle Y

Mathematics

1 answer:

LiRa [457]4 years ago

6 0

I think it is A 54 because I did it already and I got a 100

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What are the determinants for solving this linear system? 5x + 3y = 17 −8x − 3y = 9

Ksivusya [100]

For this case we have the following system of equations:
5x + 3y = 17
-8x - 3y = 9
We can rewrite the system like:
Ax = b
Where,
A = [5 3; -8 -3]
b = [17; 9]
x = [x; y]
The determinant of matrix A is given by:
lAl = ((5) * (- 3)) - ((3) * (- 8))
lAl = (-15) - (-24)
lAl = -15 + 24
lAl = 9
Answer:
The determinant for solving this linear system is:
lAl = 9

3 0

3 years ago

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At the green house of salad you get a $1 coupons for every 3 salads you buy.What is the least number of salad you could buy to g

IrinaK [193]

If one coupons costs you 3 salads, 10 salads costs you 10 × 3 = 30 salads.

To get $10 in coupons, the least amount of salads you would need to buy is 30.

5 0

4 years ago

Multiply -10(-7x² + 5x)

tatiyna

Answer: 70x^2 -50x

Step-by-step explanation:

^ means exponent

7 0

3 years ago

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The population at Bishop High School is 2000 students in 2011. Every year the population decreases by 50 students

Artemon [7]

Answer:

Let p be the population at t be the number of years since 2011. Then, $p=2000-50t$

The projected population of the high school in 2015=1800
In 2019 the population be 1600 students

Step-by-step explanation:

Given: The population at Bishop High School students in 2011 =2000

Also, Every year the population decreases by 50 students which implies the rate of decrease in population is constant.

So, the function is a linear function.

Let p be the population at t be the number of years since 2011.

Then, $p=2000-50t$

So at t=0, p=2000

In year 2015, t=4, substitute t=4 in the above equation ,we get

$p=2000-50(4)\\\Rightarrow\ p=2000-200\\\Rightarrow\ p=1800$

Hence, the projected population of the high school in 2015=1800

Now, put p=1600 in the function , we get

$1600=2000-50t\\\Rightarrow50t=2000-1600\\\Rightarrow50t=400\\\Rightarrow\ t=\frac{400}{50}\\\Rightarrow\ t=8$

Now, 2011+8=2019

Hence, in 2019 the population be 1600 students

6 0

3 years ago

Use the Associative Property of Addition to find the total of 4, 12, and 18 in two different ways.

Alex Ar [27]

4, 12, and 18 in two different ways

(4 + 12) + 18 = 16 + 18 = 34

4 + (12 + 18) = 4 + 30 = 34

answer is B) (4 + 12) + 18 = 16 + 18 = 34; 4 + (12 + 18) = 4 + 30 = 34 (second choice)

6 0

3 years ago

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