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2 years ago

F(x)=x²-3 tell whether the function is quadratic or not?

Mathematics

1 answer:

Misha Larkins [42]2 years ago

7 0

Answer:

state whether this function is quadratic? why or why not?

f(x) = - 3(x - 2)(x + 3)(x + 5)

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Find the length of diagonal HJ. Round to the nearest hundredth.

Alisiya [41]

Answer:

The length of the diagonal HJ is 10.82 units

Step-by-step explanation:

* Lets revise the rule of the distance between two points

- $d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}$ , where

$(x_{1},y_{1})$ and $(x_{2},y_{2})$ are the two points

* Lets use this rule to find the length of the diagonal HJ

∵ The coordinates of point H are (-4 , 3)

∵ The coordinates of point J are (5 , -3)

∴ $x_{1}=-4$ and $x_{2}=5$

∴ $y_{1}=3$ and $y_{2}=-3$

- Lets find the length of the diagonal HJ by using the rule above

∴ HJ = $\sqrt{(5-(-4))^{2}+(-3-3)^{2}}=\sqrt{(5+4)^{2}+(-6)^{2}}$

∴ HJ = $\sqrt{(9)^{2}+36}=\sqrt{81+36}=\sqrt{117}=10.81665$

∴ HJ = 10.82

* The length of the diagonal HJ is 10.82 units

7 0

3 years ago

What is 1 and 5/6 as a decimal?

balandron [24]

Answer: 1.83

Step-by-step explanation:

Hope this helps!

8 0

3 years ago

Jamal drew the function below. Which explains whether or not his function is linear?

sladkih [1.3K]

Answer:

"line" a straight line graph is always linear once the line isn't straight, it'll no longer be called a line and will never be linear anymore

8 0

3 years ago

Read 2 more answers

Y = −2 4x − 3y = 18 solved by substitution please show work so i can understand :)

ycow [4]

Answer:

Step-by-step explanation:

y = -2

4x - 3y = 18

4x - 3(-2) = 18

4x + 6 = 18

4x = 12

x = 3

(3, -2)

5 0

3 years ago

Read 2 more answers

Select the correct answer from the drop-down menu.

LenKa [72]

Answer:

Step-by-step explanation:

Got 100%

7 0

3 years ago

F(x)=x²-3 tell whether the function is quadratic or not?​

F(x)=x²-3 tell whether the function is quadratic or not?