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Sergio [31]
3 years ago
15

Jeremy wants to buy a backpack that costs $65. Luckily, the store is having a 35% off sale. What will be the sale price of the b

ackpack?
A)$22.75
B)$42.25
C) $87.75
D) $30
Mathematics
1 answer:
Tju [1.3M]3 years ago
7 0

Answer:

B.$42.25

Step-by-step explanation:

I I think that's the answer

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-1/3 + (-7/4)<br><br> Ill give this cookie to who solves it
elena-14-01-66 [18.8K]

Answer:

-25/12

Step-by-step explanation:

first, you need a common denominator. in this case, it's 12.

-1/3=-4/12

-7/4=-21/12

and then you add

-4+-21=-25

so -25/12 is your answer

5 0
3 years ago
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What is the order from least to greatest for all three?
san4es73 [151]
21. 1/7 3/8 1/2
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8 0
3 years ago
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Is the given function phi(x) = x^2 - x^-1 an explicit solution to the linear equation d^2y/dx^2 - 2/x^2 y = 0? Circle your answe
mart [117]

Answer:

Yes

Step-by-step explanation:

We are given that a function \phi(x)=x^2-x^{-1}

We have to find that given function is an explicit solution to the linear equation

\frac{d^2y}{dx^2}-\frac{2}{x^2}y=0

If given function is an explicit solution of given linear equation then it satisfied the given differential equation

Differentiate w.r.t x

Then we get \phi'(x)=2x+x^{-2}

Again differentiate w.r.t x

Then we get

\phi''(x)=2-\frac{2}{x^3}

Substitute all values in the given differential equation

2-\frac{2}{x^3}-\frac{2}{x^2}(x^2-x^{-1})

=2-\frac{2}{x^3}-2+\frac{2}{x^3}=0

Hence, given function is an explicit solution of given differential equation.

Therefore, answer is yes.

3 0
3 years ago
Solve the equation below. If the solution is not an integer, give it in fractional form reduced to lowest terms.
Lina20 [59]

Answer:

x = 21

eliminate the denominator of 4

you can do this buy multiplying both sides by 4

x -9 = 12

x = 21

6 0
3 years ago
Does a triangle have to have 2 of the same sides
Delicious77 [7]

Answer:

yes

Step-by-step explanation:

it is known as Isosceles Triangle

7 0
4 years ago
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