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yKpoI14uk [10]
3 years ago
14

What is the value of 4x^2+5x when x=1

Mathematics
2 answers:
erastovalidia [21]3 years ago
6 0
So the answer to this equation is 9
to find the answer we first need to substitute the x for 1
so the equation would be 4×1^2+5*1
so now we simplify the equation so it would be 4+5×1
and 4+5*1 simplified is 4+5
and 4+5=9
Bond [772]3 years ago
4 0
You would do 4^2=16+5=The answer is 21.
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The sum of two rational numbers is -8 1/4. if one of the numbers is -5 2/3, find the other number. im too lazy to do this
Nataly [62]

Answer:

Step-by-step explanation:

let : x and t this numbers : x +y = -81/4

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4 0
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The following examples illustrate the associative property of multiplication.
kati45 [8]

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A) a • (b • c) = (a • b) • c

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
If $580 is invested in an account which earns 9% interest compounded annually, what will be the balance of the account at the en
joja [24]
The formula for compounded interest is A = P (1+r/n)^nt.
P=580 
r = .09
n = 1
t = 9
<span>
To find how much the balance is at the end of nine years, plug in all of the knows into the formula.</span>
A = 1259.698 is how much the balance will be. (Rounded to 1259.70 if you round to the nearest cent).



8 0
4 years ago
Need help math testt
Serga [27]

Answer:

D

Step-by-step explanation:

8 0
3 years ago
Henry received $500 for his birthday which he intends to invest in an account that pays simple interest at the rate of 12% per y
Mila [183]

Answer:

$560

Step-by-step explanation:

Given that :

Principal, P= $500

Interest rate, r = 12% per year

Amount in account after 1 year

Time = 1 year

Using the relation :

A = P(1 + rt)

A = final amount in account

A = $500(1 + 0.12(1))

A = $500(1 + 0.12)

A = $500(1.12)

A = $560

3 0
3 years ago
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