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jek_recluse [69]
2 years ago
12

I really need help with this please!!

Mathematics
1 answer:
babunello [35]2 years ago
4 0
J)x^2 +2x +yx+2y-5x-10
x^2-3x+yx-10

k)5y^2(1-2y)

l)a(x+y+z)
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you put $400 in an account. the account earns $18 simple interest in 3 years. what is the annual interest​
nadya68 [22]

Answer:

$6

Step-by-step explanation:

divide 18 into three

18÷3=6

8 0
3 years ago
Help meeeeee plzz Think about how to use the interactive tool to form an expression equivalent to –x + ( –3x) + 12 – 9. An equiv
Stolb23 [73]
The answer is -4x+3.......
8 0
3 years ago
Read 2 more answers
A footbridge is 5 feet wide and is built with wood planks that are 6 inches wide. How many planks wide is the path?
Ede4ka [16]

Here we have to know the conversion between feet and inches.

1 Feet = 12 inches (This is given and is to be known)

So the 5 feet wide footbridge when converted to inches would be about 5*12 = 60 inches

The width of the footbridge in inches = 60 inches

Each wooden plank is 6 inches,

So the number of wooden planks that are required to build the foot bridge of 60 inches = 60/6 = 10 planks

Hence, the path path is 10 planks wide

7 0
3 years ago
How can you quickly determine the number of roots a polynomial will have by looking at the equation?
Shtirlitz [24]

One can determine the number of roots by seeing the degree of the given polynomial.

The number of roots can be determined by just seeing the highest power of the given equation.

1) for the equation  x-4=0

here, the highest power of the equation is one. So, it will have one root.

<h3>What is the polynomial?</h3>

A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtract multiplication, on,  and non-negative integer exponentiation of variables.

Let's check it by simplifying x-4=0  which implies x=4

Hence, the equation has only one root namely x = 4.

2) Consider a quadratic equation,

10t^2-t-3=0

here, the highest power of the equation is two. So, it will have two roots.

Let's check it by simplifying using the middle term splitting method,

10t^2+5t-6t-3=0

5t(2t+1)-3(2t+1)=0

(5t-3)(2t+1)=0

t=-3/5 or t=-1/2

Thus, the equation has two roots.

Hence, one can determine the number of roots by seeing the degree of the given polynomial.

To learn more about the polynomial visit:

brainly.com/question/2833285

#SPJ1

3 0
2 years ago
Anwser: <br><br> (1-4-6+56)×6-8-3
baherus [9]

Answer:

PEMDAS, do multiplication first then, adddition, then subtraction

Step-by-step explanation:

7 0
4 years ago
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