All categories

3 years ago

Can somebody help with this??

Mathematics

2 answers:

lesantik [10]3 years ago

6 0

Answer:

y = -0.25x2 - x + 4 (our answer)

Step-by-step explanation:

elixir [45]3 years ago

4 0

Answer:-8

Step-by-step explanation: you multiply the 2 answers in the parentheses

You might be interested in

If y varies directly as x, and y is 48 when x is 6, which expression can be used to find the value of y when x is 2?

sertanlavr [38]

y = ( 48 *2 ) / 6

Step-by-step explanation:

If y varies directly as x they are directly proportional, which means they relate to each other in the same way....

2 : y = 6: 48

what is y if x = 2?

The value of y can be found if you write it a two fracrions

2 : y = 6 : 48

2 / y = 6 / 48

cross multiply the fractions gives

6*y = 48 *2

divide left and right of the = sign by 6 gives the answer:

y = ( 48 *2 ) / 6

(if you solve it you get y = 12 but that was not the question).

Other method:

multiply left and right of the = sign by y

2 * y/y = y *6 / 48

6y / 48 = 2 * 1

multiply left and right of the = sign by 48

6y * 48/48 = ( 48 *2 )

6y = ( 48 *2 )

divide left and right of the = sign by 6

6/6* y = ( 48 *2 )/6

y = ( 48 *2 ) / 6

(if you solve it you get y = 12 but that was not the question).

4 0

3 years ago

Is 14 a solution for the equation -5 + 2x = 23? Explain.

Mila [183]

Answer:

Yes because after solving the equation, x does indeed equal 14.

Step-by-step explanation:

-5 + 2x = 23

2x = 23 + 5

2x = 28

x = 14

8 0

3 years ago

Read 2 more answers

The equation of function h is h(x) = 1/2(x - 2)^2. The table shows some of the values of function m.

PtichkaEL [24]

Answer:duuno i wanted to help

Step-by-step explanation:

thnx

3 0

3 years ago

Read 2 more answers

Silvio is an air-traffic controller who must calculate the altitude of an incoming plane. He sees the plane at an angle of eleva

Mrac [35]

Since the problem is not telling us the height of Silvio, we are going to assume it is not relevant for our calculations.
Let $h$ the altitude of the incoming plane. We know for our problem that the distance between Silvio and the tower is 3 miles, Also we know that the angle of elevation to the plane is 40°. With this information we can create a triangle as shown in the figure. We need a function that relates the angle of elevation with its opposite and adjacent sides, that function is tangent.
$tan \alpha = \frac{opposite.side}{adjacent.side}$
$tan(40)= \frac{h}{3}$
$h=3tan(40)$
$h=2.5miles$

We can conclude that we should use the trig function tangent to model this situation; also, we can conclude that the equation that describes this situation is $h=3tan(40)$ .

4 0

3 years ago

Which functions have a y-intercept that is greater than the y-intercept of the function g(x) = |x + 3| + 4? Check three

Marina CMI [18]

Answer:

Step-by-step explanatio

If i were to give my judge on this <9M+13=5^9

7 0

2 years ago