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Bad White [126]
3 years ago
7

(5x – 3 – x²) + (8x^2– 1+x)

Mathematics
1 answer:
Natali [406]3 years ago
6 0

Answer:

7x^2+6x-4

Step-by-step explanation:

(-x^2+5x-3)+(8x^2+x-1)

Just combine like terms.

-x^2+8x^2= 7x

5x+x= 6x

-3-1= -4

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(4y-4)=(10x+65) answer please?
icang [17]

Answer:

Step-by-step explanation:

4y-4=10x+65, this can be expressed in many ways...

4y-10x-4-65=0

4y-10x-69=0 or

4y=10x+69

y=(10x+69)/4

3 0
2 years ago
You play a game that involves spinning a wheel. Each section of the wheel shown has the same area. Use a sample space to determi
Anastasy [175]

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is it fighet spinner or I am wrong hahahaa fighet spinner

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3 years ago
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How do you do this question it is kinda difficult to understand
Dafna1 [17]
Speed = slope of the line = 20 / 0.5 = 40 km / hr

Second part will be a line with downward slope from the end of the horizontal line Slop = 20 / 1/3 (=60 km/h) So it will pass through the 65 on horizontal axis.
4 0
3 years ago
Sloane kicked a soccer ball off the ground at a speed of 36 feet per second. the height of the ball can be represented by the fu
deff fn [24]

The total time in seconds the ball will take to travel before returning the ground is 2.25 seconds.

<h3>What is factorisation?</h3>

The breaking or breakdown of an entity (such as an integer, a matrices, or a polynomials) into a products of another unit, or factors, whose multiplication results in the original number, matrix, etc., is known as factorisation or factoring in mathematics. 

Calculation for the time;

Let 't' be the time in second the ball will travel.

Let H(t) be the total height travelled by the ball.

The equation of the height is given as

H(t)=-16 t^{2}+36 t

As soon as the ball will return to the ground the total height will become zero.

So, put equation of height equal to zero.

-16 t^{2}+36 t=0

Factorise the above equation;

-16 t\left(t-\frac{9}{4}\right)=0

Put each value equals to zero to get the value of time.

\begin{aligned}&t=0 \mathrm{sec} \\&t=9 / 4=2.25 \mathrm{sec}\end{aligned}

As, time can not be zero

Therefore, the total time taken by the ball to return to the ground is 2.25 sec.

To know more about factorisation, here

brainly.com/question/25829061

#SPJ4

4 0
1 year ago
Solve for x. SHOW YOUR WORK.
alukav5142 [94]

Answer:

1+1=2

Step-by-step explanation:

X is the answer to any math problem, and 1x2=2

3 0
2 years ago
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