4 years ago

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Mathematics

2 answers:

sleet_krkn [62]4 years ago

8 0

Answer:

Did you just cast a curse on me???

Step-by-step explanation:

Lyrx [107]4 years ago

3 0

. . . I cant understand anyhting you typed.. um what..?

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What is the value of the expression below when y = 7? 2y^2 + 9y + 2

exis [7]

Answer:

163

Step-by-step explanation:

$2*(7^{2}) +9(7)+2$

$2*(49)+9(7)+2$

$98+63+2$

$=163$

7 0

3 years ago

Is y=x+9 linear or is it not linear

avanturin [10]

Answer: It is linear. When a line is linear it just means it makes a straight line when you graph it. When it isn’t it will be curved or in some weird shape.

Step-by-step explanation:

3 0

3 years ago

At a concession stand, five hot dog(s) and two hamburger(s) cost $11.75; two hot dog(s) and five hamburger(s) cost $11.00. Find

serg [7]

Answer:

x:hot dogs

y: hamburger

5x + 2y = 11.75

2x + 5y = 11.00

10x + 4y = 23.50

-10x - 25y = -55.00

-21y = -31.50

y = $1.50 each hamburger

2x + 5(1.50)= 11.00

2x + 7.50 = 11.00

2x = $3.50

x = $1.75 each hot dog

8 0

4 years ago

Оо О ср А Divide: 5/8 divided by 3/4

Angelina_Jolie [31]

Answer:

solution

5/8 ÷3/4

=5÷3=1.6666666667

=4÷8=2

=11

2

3 0

3 years ago

Given the function f(x) = -5x + 1 + 3, for what values of x is f(x) = -12?

irina1246 [14]

Answer:

$x=\frac{16}{5}$

Step-by-step explanation:

The given function is

$f(x) = -5x +1+3$

Which can be rewritten also as

$f(x) = -5x +4$

We want to find the values of x for which

$f(x) = -12$

In order to do that, we just substitute -12 into f(x), and we solve the equation for x:

$-12 = -5x + 4\\-16 = -5x\\x=\frac{-16}{-5}=\frac{16}{5}$

6 0

4 years ago