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fgiga [73]
3 years ago
15

SOMEONE HELP ME PLEASE AND STOP PUTTING THOES LINKS PLEASE THIS IS A TEst

Mathematics
1 answer:
nadezda [96]3 years ago
8 0

Answer:

-12n + 42 -15n -27

-27n + 15

Step-by-step explanation:

C is your answer.

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A watch lost 1 minute 18 seconds in 39 days. How many seconds did it lose per day?
vlabodo [156]
ATO,
We should convert 1.18 minutes into seconds
1 minute = 60 seconds
60 + 18 seconds = 78 seconds
We should divide with the days
So,
78 seconds ÷ 39 days = 2 seconds per day.

So,it lose 2 seconds per day.

Please mark mine answer as Brainliest
Please click THANKS button
6 0
3 years ago
A rectangle has a heigh if 4x^3 and a width of x^3+3x^2+2x
Andrews [41]

Answer:

Area = 4x^6+12x^5+8x^4

Step-by-step explanation:

<u>The Complete Question:</u>

A rectangle has height  4x^3  and width  x^3+3x^2+2x. What is the area of the rectangle in terms of x?

<u>Solution:</u>

The formula for the area of a rectangle is:

Area = Height * Width

Both the expressions for height and width is given, so we just need to multiply both the expressions to get an expression, in x, for the area of the rectangle. The algebra is shown below:

A=(4x^3)(x^3+3x^2+2x)\\A=4x^6+12x^5+8x^4

This is the area of the rectangle.

8 0
3 years ago
Given the following rectangle and circle, at what approximate value of x are the two areas equal? x ≈ 5.8 x ≈ 3.4 The curves do
SIZIF [17.4K]

The approximate value of x will be approximately equal to 3.4

<h3>Area of triangle and circle</h3>

The formula for calculating area of rectangle is expressed as:

A  = lw

  • l is the length
  • w is the width

Ar = (3x-1)(x+2)

Ar = 3x^2+6x-x-2

Ar = 3x^2 + 5x - 2

For the circle

Ac = πr²

Ac = 3.14(x-3)²

Ac = 3.14(x²-6x+9)

Ac = 3.14x² - 18.84x + 28.26

If the area are equal;

3x² + 5x - 2 = 3.14x² - 18.84x + 28.26

3.14x² - 3x² - 5x - 18.84x + 30.26 = 0
0.14x²-23.84x+30.26 = 0

On factorizing the equation, the approximate value of x will be approximately equal to 3.4

Learn more on area of rectangle here; brainly.com/question/25292087

6 0
3 years ago
Pls help this is due soon If the discriminate of a quadratic equation is negative___.
Makovka662 [10]

Answer:

<em>e. none of these</em>

Step-by-step explanation:

The correct answer is<em> e. none of these</em> because a negative discriminant means that there will be no solutions at all!

6 0
3 years ago
Which values of m and b will create a system of equations with no solution? Check all that apply. y = mx + b y = –2x + 3/2
Leni [432]
Lines with no solution are parallel lines....parallel lines will contain the same slope, but different y intercepts.

y = -2x + 3/2....slope (m) = -2 and y int (b) = 3/2
so the line we need will have a slope of -2, but can have any y int EXCEPT 3/2.

m = -2, and b = -1/3 is parallel, no solution
m = -2 and b = -2/3...parallel, no solution
7 0
3 years ago
Read 2 more answers
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