2 years ago

Is -(x+7)^2+4 a quadratic function?

1 answer:

5 0

Yes you use the method of your choice to solve (x+7)*(x+7)
Then you distribute the negative -1(x^2+14x+49)
Then you add the four
-x^2-14x-45 should be your answer

You might be interested in

Evaluate the expression when =c3 and =x−2 . −c4x

andrezito [222]

-c $4^{x}$
-3* $4^{-2}$
=-3 $\frac{-3}{ 4^{2} }$
= $\frac{-3}{16}$

3 0

2 years ago

Help with special right triangle please

Ahat [919]

Answer:

Step-by-step explanation:

Looking at the right angle triangle that contains x and y, we would apply trigonometric ratio to determine x an y. Taking 60 degrees as the reference angle,

Hypotenuse = y

Adjacent side = x

Opposite side = 36

Therefore,

Sin # = opposite side / hypotenuse

Sin 60 = 36/y

y = 36/Sin60 = 36/0.8660 = 41.57

Cos # = adjacent side/hypotenuse

Cos 60 = x/41.57

x = 41.57Cos 60 = 41.57 × 0.5 = 20.785

Sin45 = z/36

z = 36Sin45 = 36 × 0.7071 = 25.4556

7 0

2 years ago

I need help Asap!!!!!!!!!

kobusy [5.1K]

-8 and 3 ...... I think

6 0

2 years ago

How is solving −5x = −6.5 different from solving − 1 5 x = −6.5? How are the solutions related? Complete the explanation.

Alexxandr [17]

Answer:

Step-by-step explanation:

uhedguiahfig;ahihgijah;oi

3 0

2 years ago

Read 2 more answers

Describe a situation where it is easier to use decimals than fractions and explain why

valentina_108 [34]

In money if you have £6.25 it is easier to write it in decimals
If you are measuring something e.g. 10.3cm long no one writes it 10 3/10 cm

7 0

2 years ago