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3 years ago

Help me pleaseeeeeeeeeeeeeeeeeeeeeeee

Mathematics

1 answer:

Vitek1552 [10]3 years ago

7 0

The answer is 18. F(2) is saying that x is equal to 2. so where ever there is an x in the problem you should fill in 2 for. then all you have to do is type it into a graphing calculator and solve.

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90-80*2-2 plz helpppppppppppppppppp

Flauer [41]

Answer:

Step-by-step explanation:

90-80=10

10*2=20

20-2=18

7 0

3 years ago

Read 2 more answers

How do you solve it?

MatroZZZ [7]

Answer:

i: x=-2, x=1

ii: x=-1/2

Step-by-step explanation:

Quadratic form:

You solve i by using FOIL (First, Outside, Inside, Last) because it is a multiplication problem.

$(x+2)(x-1)=0$

"first" would be $x*x$ , which would equal $x^{2}$

"outside" would be $x*-1$ , which would equal $-1x, or -x$

"inside" would be $2*x$ , which would equal $2x$

"last" would be $2*-1$ , which would equal $-2$

Now you need to combine the terms so that they are one after the other

$x^{2}-x$ $+2x-2$

Combine like terms, and you should get:

$x^{2} +x-2$

i Solution

You need to get the variable by itself.

Subtract two from both sides

$x+2=0\\x=-2$

Add one to both sides.

$x-1=0\\x=1$

ii Solution

Add all the terms.

$x+2+x-1=0\\2x+1=0\\2x=-1\\x=-\frac{1}{2}$

8 0

3 years ago

Aquí está mejor Cómo simplificar esta expresión

Ludmilka [50]

Answer:

359/4

Decimal: 89.75

Step-by-step explanation:

6 0

2 years ago

The value of y varies directly with c. If x = 2, then y = 7. Find the value of x if y = 84.

shtirl [24]

Answer:

x=24

Step-by-step explanation:

y = x*c

x=2, y=7

2*c=7 => c=7/2

x*7/2 = 84

x = 84*2/7

x = 12*2

x = 24

3 0

3 years ago

Read 2 more answers

PLS HALP ASAP

Oksanka [162]

Answer:

the answer is B

a 3d rectangle slided vertically can produce a 2d rectangle

6 0

1 year ago