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3 years ago

Water is the answer to 52-3³÷9

Mathematics

1 answer:

REY [17]3 years ago

8 0

52-3^3/9. You need to use PEMDAS on this. You do the exponent first. You get 27. Now divide by 9 and get 3. 52-3 = 49

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A taxicab company charges $2.10 plus $0.80 per mile. Carmen paid a fare of $11.70. Write and solve an equation to find the numbe

Snowcat [4.5K]

Answer:

y(x)=0.8x+2.1

x=12 miles

Step-by-step explanation:

Let x represent the number of miles covered and with a fixed charge of 2.1 irrespective of miles covered then the equation can be written as

y(x)=0.8x+2.1

Substituting y(x) with 11.7 then

11.7=0.8x+2.1

0.8x=11.7-2.1=9.6

X=9.6/0.8=12 miles

7 0

3 years ago

What is the are of the kite 10 m 8 m

Talja [164]

Answer:

Step-by-step explanation:

I hope that 10 and 8 are the diagonals...

10 * 8 = 80

80 / 2 = 40

3 0

3 years ago

For the function F(x) = 2x^2-31x-51, where is the function increasing and positive? ( for all X values greater than what number

Ulleksa [173]

ANSWER
$x \: > \: 17$

EXPLANATION

The given function is

$f(x) = 2 {x}^{2} - 31x - 51$
Let us split the middle term to get,

$f(x) = 2 {x}^{2} -34x + 3x- 51$

We factor to obtain,

$f(x) = 2x(x - 17) -+3(x - 17)$

$f(x) = (2x -+3)(x -17)$

Let us find the zeros of f(x),

$(2x +3)(x - 17) = 0$

Either

$2x +3 = 0 \: or \: x - 17 = 0$
$x = -\frac{3}{2} \: or \: x = 17$

We need to find the x-value of the vertex, which is the midpoint of the x-intercepts.

This gives us,

$\frac{- \frac{3}{2} + 17}{2} = 7.75$
Hence the axis of symmetry of the parabola has equation,

$x = 7.75$

Since the given function has minimum turning point, it will decrease and then increase.

The function will be increasing for
$x \: > \: 7.75$

The function will be increasing and positive for
$x \: > \: 17$

7 0

3 years ago

Write an inequality that represents the verbal expression.

Alla [95]

Answer:

x+3 > 21

the is a line under the greater than symbol

Step-by-step explanation:

3 0

3 years ago

How to multiply to the n<br>earest ten

Tcecarenko [31]

I'm not sure what you mean by this, but if you mean rounding, I got an answer.

Say you're rounding 24 to 30.
24 is closer to 20 than 30.

But if you were rounding 25 to 30, 25 would be closer to 30, not 20.
I guess it's kind of confusing.

4 0

3 years ago