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kogti [31]
3 years ago
7

Any help? I'll give brainlest

Mathematics
2 answers:
ivanzaharov [21]3 years ago
5 0

Answer:

answer is a

Step-by-step explanation:

swat323 years ago
4 0

Answer:

C

Step-by-step explanation:

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How much change will get out of $30
Igoryamba

Hello there,

How much change will get out of $30

Answer:

Pennies: 3000

Nickels: 600

Quarters: 120

7 0
3 years ago
Write in the form p(x+q)²+r<br><br><br>2x²-5x+1
Eva8 [605]

\text{Let}\ f(x)=ax^2+bx+c,\ \text{then}\ f(x)=a(x-p)^2+k,\ \text{where}\\\\h=\dfrac{-b}{2a},\ k=f(h)\\\\-----------------\\\\\text{We have}\ f(x)=2x^2-5x+1\to a=2,\ b=-5,\ c=1.\\\\\text{Substitute:}\\\\h=\dfrac{-(-5)}{2(2)}=\dfrac{5}{4}\\\\k=f\left(\dfrac{5}{4}\right)=2\left(\dfrac{5}{4}\right)^2-5\left(\dfrac{5}{4}\right)+1=2\left(\dfrac{25}{16}\right)-\dfrac{25}{4}+1\\\\=\dfrac{25}{8}-\dfrac{25\cdot2}{4\cdot2}+\dfrac{8}{8}=\dfrac{25-50+8}{8}=-\dfrac{17}{8}\\\\\text{Therefore we have}

f(x)=2\left(x-\dfrac{5}{4}\right)-\dfrac{17}{8}=\boxed{2\left(x+\left(-\dfrac{5}{4}\right)\right)^2+\left(-\dfrac{17}{8}\right)}

q=-\dfrac{5}{4},\ k=-\dfrac{17}{8}

4 0
3 years ago
Last weekend, Lexie spent 1/2 of her money on the movies and 1/4 of her money on food. She has $7.50 remaining. How much money d
Degger [83]
It is 60 dollars because you work backwards so you multiply 7.50 by 4 and 2. 
7 0
4 years ago
Can I get help please ?
murzikaleks [220]

Answer:

8

Step-by-step explanation:

1) let’s take the original number as “x”

So

3x=28-0.5x

Lol don’t worry I’ll show you how I got that

So it says 3 times a number. That tells me my number, X is multiplied by 3 so I have

3x so far

Next it says “is equal to”, this tells me my number 3x is equal to something so I have this now:

3x=

After that it says “half of a number” so I know I will have 0.5x subtracted from 28. Since it says subtracted from 28 that means my number will be subtracted from 28, not the other way around so

3x=28-0.5X

Now I can solve this by bringing “-0.5” to the left.

3x+0.5x=28

3.5x=28

Divide both sides by 3.5 and

X=8

4 0
4 years ago
jason earns 15 dollars an hour at his job he spends 40 a day create an exprssion to desribe his savings in one day where x is th
geniusboy [140]

Answer:

Let y be the total earns of jason

where x is the number of hours jason works that day

y=15x ×40

y=600x

total earns of jason y = 600x



7 0
3 years ago
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