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3 years ago

Please simplify the expression

Mathematics

2 answers:

Rzqust [24]3 years ago

7 0

Answer:

10y + 12x +38

Step-by-step explanation:

Take the common variable aside

4y + 6y + 8x + 4x + 6 + 25 + 7

10y + 12x + 38

EastWind [94]3 years ago

6 0

Step-by-step explanation:

(4y+9x+6)+25+(4x+6y+7)

4y+9x+6+25+4x+6y+7

10y+12x+38

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Simplify the following expression.

love history [14]

Answer:

Step-by-step explanation:

Remember PEMDAS!

So first parentheses:

1.6^2 = 2.56

8.7 + 9.3 = 18.

Because that is inside another parentheses you multipy them.

2.56 x 18 = 46.08

Now: 46.08 divided by 1.8 = 25.6

Now subtract:

25.6 - 3.7 - 1.9 which equals 20!

Hope that helped!

6 0

3 years ago

An article reports "attendance dropped 7% this year, to 6854." What was the attendance before the drop? (Round your answer to th

Masja [62]

Answer:

7370

Step-by-step explanation:

Let x represent attendance before drop.

We have been given that an article reports attendance dropped 7% this year, to 6854. We are asked to find the attendance before the drop.

Since attendance dropped by 7%, this means that attendance after drop was 93% of x.

We can represent this information in an equation as:

$x-\frac{7}{100}x=6854$

$x-0.07x=6854$

$0.93x=6854$

$\frac{0.93x}{0.93}=\frac{6854}{0.93}$

$x=7369.89247$

$x\approx 7370$

Therefore, the attendance before drop was 7370.

4 0

4 years ago

What are the solutions of the equation x6 + 6x3 + 5 = 0? Use factoring to solve.

Sergeu [11.5K]

Solution:

we have been asked to find the solution of the equation

$x^6 + 6x^3 + 5 = 0$

It can be solved using factoring as below:

$x^6 + 6x^3 + 5 = 0\\\\substitute, x^3=y\\\\y^2+6y+5=0\\\\y^2+5y+y+5=0\\\\y(y+5)+1(y+5)=0\\\\(y+5)(y+1)=0\\\\y=-1,-5\\\\\text{substitute back }y=x^3\\\\x^3=-1,-5\\\\x=-1,\sqrt[3]{-5} \\\\\text{These are the only real solutions}\\$

8 0

4 years ago

Read 2 more answers

Find the slope of the line that contains the following pair of points (1,6) (9,-4)

motikmotik

Answer:

The slope is -5/4 or -1.25

Step-by-step explanation:

m= (y2-y1)/(x2-x1)

m= (-4-6)/(9-1)

m=(-10)/8

m= -5/4

3 0

3 years ago

Read 2 more answers

Determine if the ordered pair is a solution to the equation. Y = -x - 2; (2,-4)

hoa [83]

Yes, the ordered pair (2,-4) is a solution to the equation.

2 = x
-4 = y

Subtitute x and y
-4=-2-2
-4=-4

5 0

3 years ago