Bryan and Kevin were training for a big

Mathematics

2 answers:

Amiraneli [1.4K]3 years ago

8 0

They will probably be the same they practiced together and got to know each other weaknesses

Anastasy [175]3 years ago

7 0

Step-by-step explanation:

iwij edge hnenennenenenebdbd dbbdbdnndnd ndndndnndndnndndnndndnfnndnndndnr

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Penelope determined the solutions of the quadratic function by completing the square. F(x) = 4x2 8x 1 –1 = 4x2 8x –1 = 4(x2 2x)

Ymorist [56]

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

<h3>What is quadratic equation ?</h3>

Any equation of the form $ax^2+bx+c=0$ where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .

Given work of Penelope is

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+1=4\left(x^{2}+2 x+1\right) \\&0=4(x+2)^{2} \\&0=(x+2)^{2} \\&0=x+2 \\&-2=x\end{aligned}$

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+4=4\left(x^{2}+2 x+1\right) \\&3=4(x+2)^{2} \\&\frac{3}{4} =x+2)^{2} \\&\frac{\pm\sqrt3}{2} =x+2 \\&\frac{-2\pm\sqrt3}{2} =x\end{aligned}$

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

To learn more about quadratic equations visit : brainly.com/question/1214333

8 0

2 years ago

It would be amazing if you can help me with this !

denis23 [38]

Answer:

Step-by-step explanation:

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Blank 2 = " 3 "

4 0

3 years ago

A radius is an angle that connects any point on the circle to the center of that circle.

Flura [38]

The answer is false.

A radius is a segment that connects any point on the circle to the center of said circle. An angle requires two lines, and a radius only consists of one line, which further proves that this statement is false.

6 0

4 years ago

The perimeter of a rectangular table is 8 m.

ipn [44]

Answer:

The side lengths are 1.5m and 2.5m.

Step-by-step explanation:

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3 years ago

Joe is mowing lawns to buy a new car. For every lawn that he mows he earns $20. Joe charges a one time clean up fee of $50 befor

LUCKY_DIMON [66]

X=5
f(x)= 20(5)+50
f(x)=100+50
f(x)=150