All categories

3 years ago

Simplify this expression

Mathematics

1 answer:

I am Lyosha [343]3 years ago

8 0

Hello there!

Let's put these into simpler terms:
-7s + 3s + 2s
10 - 8 - 7

-7s + 3s = -4s
-4s + 2s = 2s

10 - 8 = 2
2 - 7 = -5

We are now left with:
2s - 5, which is your simplified expression.

I hope this helps!

You might be interested in

if you were giving advice to a freind, what would you say are the most important things to know about investing 4 sentences

melomori [17]

Answer:

Step-by-step explanation:

Never invest money that you cant afford to lose. Your first goal should always be to avoid major losses. Dont get greedy, be patient, seek the advice of qualified well - regarded advisors, and keep your costs low. Research is a part of an investor's due diligence...so whether you work with investment professionals or on your own, it is wise to do your homework. Dont jump in blind.

5 0

3 years ago

Find the standard form of the equation of the circle with endpoints of a diameter at the points (3,8) and (-7,2)

poizon [28]

$(x+2)^{2}$ + $(y-5)^{2}$ = 34

The equation of a circle in standard form is

$(x-a)^{2}$ + $(y-b)^{2}$ = $r^{2}$

where (a , b) are the coordinates of the centre and r is the radius

The centre is at the midpoint of the endpoints and the radius is the distance from the centre to either of the 2 endpoints

Using the midpoint formula

midpoint = [ $\frac{1}{2}$ (x $x_{1}$ + $x_{2}$ , $\frac{1}{2}$ ( $y_{1}$ + $y_{2}$

where ( $x_{1}$ , $y_{1}$ =(3,8) and ( $x_{2}$ , $y_{2}$ =(-7,2)

centre = ( $\frac{1}{2}$ (3-7), $\frac{1}{2}$ (8+2)) = (-2,5)

Calculate r using the distance formula

r = √( $x_{2}$ - $x_{1}$ )²+( $y_{2}$ - $y_{1}$ )²)

= √((3+2)²+(8-5)²) = √(25+9) = √34 ⇒ r² =(√34)² = 34

equation of circle is : (x+2)²+(y-5)² = 34

8 0

3 years ago

Crystal reads 25 pages in 1 hour. Write an equation to represent the 2

Inessa05 [86]

Answer:

she read 25 pages in 60 minutes

Step-by-step explanation:

8 0

3 years ago

(10 points)What is the sum of the first ten terms of the sequence 4,-12, 36, -144...

MrRissso [65]

Answer:

Step-by-step explanation:

7 0

3 years ago

The number of bacteria on a piece of toast triples every

Illusion [34]

Answer:

You begin with 1 bacteria, and after 1 hour it has tripled so you now have 1 x 3=3.

Next hour, it triples again so you now have 1 x 3 x 3=9

You can see the pattern shows that the number of bacteria is multiplying every hour by a factor of 3. An exponent denotes how many times we are multiplying a number by itself, for example: 34 means we are multiplying the number 3 a total of 4 times (3 x 3 x 3 x 3).

Therefore the question is requiring us to triple the number of bacteria every hour for 24 hours, which means we are multiplying by 3 a total of 24 times. This gives us:

n x 324 where n is the number of bacteria you begin with.

Since you begin with 1 bacteria, the solution is 1 x 3 to the power 24 and u will get ur answer

6 0

3 years ago