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tigry1 [53]
1 year ago
5

50 POINTS! I’d really like someone to help me out with the answer, I’ve been having a lot of trouble. I’d like and explanation a

s well and I’ll give brainliest if provided!

Mathematics
1 answer:
iogann1982 [59]1 year ago
8 0

The solution to the matrix equation is x = 2.6

<h3>What is the solution?</h3>

Following the matrix as given, all the elements in the right hand side would have to be multiplied by X hence we have;

-x   4x            -8    17

6x  3x     =      21   -21

Taking the determinant of both matrices;

-3x^2 - 24x^2 = 168 - 357

-27x^2 = -189

x^2 = -189/-27

x = 2.6

Learn more about matrices:brainly.com/question/11367104

#SPJ1

You might be interested in
Topic: Absolute Value Equations and Inequalities
jolli1 [7]

The values of  x are -22 and -2 and there are not extraneous solutions

<h3>How to solve the equation?</h3>

The equation is given as:

2|x + 7|= x - 8

Expand the absolute bracket

|2x + 14|= x - 8

Remove the absolute bracket

2x + 14 = x - 8 and 2x + 14 = -x + 8

Evaluate the like terms

x = -22 and 3x = -6

This gives

x = -22 and x = -2

Hence, the values of  x are -22 and -2 and there are not extraneous solutions

Read more about absolute value expressions at:

brainly.com/question/24368848

#SPJ1

4 0
2 years ago
Write an equivalent expression for (3m - 6)(8m2 - 40m - 5).​
ycow [4]

Answer:

24m3−168m2+225m+30

Step-by-step explanation:

(3m+−6)(8m2+−40m+−5)

=(3m)(8m2)+(3m)(−40m)+(3m)(−5)+(−6)(8m2)+(−6)(−40m)+(−6)(−5)

=24m3−120m2−15m−48m2+240m+30

=24m3−168m2+225m+30

4 0
3 years ago
A local university has 2.815 Hispanic students out of a total student population of 20.250. Do the Hispanic students have propor
Over [174]
Given:
The race percent of population is
White:      45%
Hispanic: 27%
Black:       18%
Asian:        7%
Other:        3%

Part a.
The university has 2,815 Hispanic out of the 20,250 total population.
This is equivalent to (2815/20250)*100 = 13.9%
This percentage is less than 27%, so Hispanics do not have proportional representation.

Answer: The Hispanic students do not have proportional representation.

Part b.
Let x =  the extra number of Hispanic students needed for proportional representation of 27% or 0.27.
Then
(2815 + x)/20250 = 0.27
2815 + x = 20250*0.27 = 5467.5
x = 5467.5 - 2815 = 2652.5

This means that 2,653 extra Hispanic students are required for a population of 20,250 students.

Answer: 2,653 extra Hispanic students.

5 0
3 years ago
30% of___ is 15 ?????
tensa zangetsu [6.8K]

Answer:

15 is 30% of 50

Step-by-step explanation:

We have, 30% × x = 15

Multiplying both sides by 100 and dividing both sides by 30,

we have x = 15 × 100/30

x = 50

If you are using a calculator, simply enter 15×100÷30, which will give you the answer.

7 0
3 years ago
Please Help! <br> Factor the expression:<br> x2 − 28x + 52
Drupady [299]

Answer:

(x-2)(x-26)

Step-by-step explanation:

x^2-2x-26x+52

x(x-2)-26(x-2)

(x-2)(x-26)

8 0
3 years ago
Read 2 more answers
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