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iris [78.8K]
3 years ago
7

Determine whether each expression is equivalent to 81^0.5t^2+t

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

All are equivalent.

Step-by-step explanation:

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Factored form of 2x^2+x-3 must show work
frozen [14]

Answer:

(2x+3)(x - 1)

Step-by-step explanation:

Since there is no common number to factor by we must approach this problem differently:

Step 1:

Multiply leading coefficient (2) by the constant term (-3)

2 x -3 = -6

Step two:

Find two numbers that multiply to -6 but add to the middle coefficient (1).

You should find these numbers to be 3 and -2

Step 3:

Replace 1x in the equation with your found numbers

2x^2 - 2x + 3x - 3

Step 4:

Take out the greatest common factor from the first two numbers, and the last two numbers.

For 2x^2 - 2x the greatest common factor would be 2x

For 3x - 3 the greatest common factor would be 3.

Step 5:

Factor out the found common factors

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

The values inside the bracket should be the same.

Step 6:

Factor out (x-1)

(x - 1)(2x + 3)

Therefore the factored form is (2x + 3)(x - 1)

4 0
3 years ago
Whats the best way to do this operation?---------------------------------
SashulF [63]
$400 - $20 = $380 ( The original charge subtract the amount he paid. )
$380 + $18 = $398 (The amount unpaid plus another charge equal total amount unpaid.)
$398 x 0.02 = $7.96 (The amount unpaid multiply the percentage of interest = amount of interest.) 

Phillip charged $7.96 interest on his second bill.
5 0
3 years ago
The legs of a right triangle measure 8 feet and 15 feet. What is the length of the hypotenuse?
vova2212 [387]

Answer:

17

Step-by-step explanation:

Use the Pythogream theorm where c is the hypotenuse.

4 0
4 years ago
A sow had a litter of 10 piglets. Out of those 10 piglets 3 of them were pink. what is the percentage of the litter was not pink
yarga [219]

3/10 was pink so 7/10 was not

7/10= 70% was not pink

8 0
4 years ago
Read 2 more answers
Please use a system of equations to solve this problem. I already know how to solve this, but I want to know how to solve it usi
DiKsa [7]

Answer:

\boxed{\sf \ \ \ 15 \ \ novelists \ \ and \ \ 9 \ \ poets \ \ \ }

Step-by-step explanation:

hello,

let's note a the number of novelists and

b the number of poets.

we know that a = 5/3 b as "enrolls novelits and poets in a ratio of 5:3"

it comes 3a=5b which is the first equation

and we know that a + b = 24 "there are 24 people"

we we have two equations

(1) 3a - 5b = 0

(2) a + b = 24

let's multiply (2) by 3 it comes 3a + 3b = 24*3 = 72

let's do 3*(2) - (1) it comes

3a + 3b -3a + 5b = 72 - 0 = 72

so 8b = 72

so b = 9

and then we replace b in (2) it comes

a = 24-9 = 15

hope this helps

3 0
3 years ago
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