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nordsb [41]
2 years ago
9

Can someone help me answer these questions

Mathematics
1 answer:
babymother [125]2 years ago
3 0
12. I’m sorry I’m horrible at word problems
13. C
14. C
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X-23 / x^2 -x- 20 - 2/5-x
alexira [117]

By simplifying \[x - \frac{{23}}{{{x^2}}} - x - 20 - \frac{2}{5} - x\] . This will result in a simplified version of  \[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\].

The Simplifying Algorithm is a wonderful way to simplify complex mathematics problems. It can be used to solve equations, convert fractions to decimals, and perform many other math operations. In this problem, the Simplifying Algorithm will help you reduce \[x - \frac{{23}}{{{x^2}}} - x - 20 - \frac{2}{5} - x\]

Since two opposites add up to 0, remove them from the expression.

\[ - \frac{{23}}{{{x^2}}} - \frac{{102}}{5} - x\]

Write all numerators above the least common denominator 5x2

\[ - \frac{{115 + 102{x^2} + 5{x^3}}}{{5{x^2}}}\]

Use the commutative property to reorder the terms so that constants on the left

\[\frac{{ - 5{x^3} - 115 - 102{x^2}}}{{5{x^2}}}\]

Rearrange the terms

\[\frac{{ - 5{x^3} - 102{x^2} - 115}}{{5{x^2}}}\]

By reording the terms

\[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\]

Hence, by simplifying this equation, divide both numerator and denominator. This will result in a simplified version of  \[ - \frac{{5{x^3} + 102{x^2} + 115}}{{5{x^2}}}\].

To learn more about simplifyication visit:

brainly.com/question/1542396

#SPJ1

7 0
10 months ago
What is the length of each side of a square that has the same area as a rectangle that is 5.4 mm long and 2.6 mm wide? Round to
Vlad1618 [11]

Hey!


Area is equal to length × width. First find the area of the rectangle.


5.4 \times 2.6 = 14.04


The area of the rectangle is 14.04 mm². That means the area of the square is also 14.04 mm². In a square, all 4 sides are the same. The length and width are the same.


Try all choices and see which is the closest


3.75 \times 3.75 = 14.06

3.87 \times 3.87 = 14.98

4.01 \times 4.01 = 16.08

4.32 \times 4.32 = 18.66


The 1st choice is the closest.


\framebox{Your answer is A}





3 0
3 years ago
Read 2 more answers
Find the exact value of the composition. arccos (cos pi/2)
Genrish500 [490]
<span>arccos (cos pi/2)=?
</span>cos pi/2=0, arccos (0)=?, we know that cos pi/2=0, so cos^-1 (o)= Pi/2, but cos^-1 (o)=arccos (0), so arccos (cos pi/2)=Pi/2
6 0
3 years ago
In the diagram, the measure of angle 3 is (23x)°, and the measure of angle 4 is (7x)°.
Sophie [7]
Angles three and four are a linear pair, meaning that they they form a line. When two angles make a line, the measures add up to 180°. Adding the two values together, we see that 3x+27x=180. Simplifying and solving for x, we get 30x=180 ⇒ x=6.

The question, however, is asking for the measure of angle 4. Thus, we plug x=6 into 7x to get 6(7)=42.

Hope this helped!
3 0
3 years ago
Read 2 more answers
Solve the compound inequality 10 &gt;= 7 + 3x and 9-4x&lt;=1 . show steps please.
pav-90 [236]
10 >= 7 + 3x                                              -4x+9<=1
-7 >= -7  - subtract 7                                       -9<=-9   - Subtract 9
__________                                               ___________
3 >=3x  - divide by 3                                       -4x<=-8    - divide by -4

x>=1                                                                      x<=2
5 0
2 years ago
Read 2 more answers
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