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REY [17]
3 years ago
15

Given the following perfect square trinomial, fill in the missing term 4x2 + ___x + 49

Mathematics
2 answers:
Arisa [49]3 years ago
6 0

Answer:

wheres the square trinomail

Step-by-step explanation:

marissa [1.9K]3 years ago
6 0

Answer:

Below.

Step-by-step explanation:

Taking the square roots of the 2 given terms we write it as a binomial

(2x + 7(2x + 7)

This = 4x^2 +  14x + 14x + 49

= 4x^2 + 28x + 49

So the missing number is 28.

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On the bottom right corner. I need help on that please! First to answer gets branliest and
katen-ka-za [31]

Answer:

20%×60

1/5×60

i only help these two

Step-by-step explanation:

6 0
3 years ago
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
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kiruha [24]

Answer:

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Step-by-step explanation:

You would get 36 dollars from 90 liters.

The answer is in the photo.

6 0
3 years ago
Help now plz asphejdjdb
Cloud [144]

Answer:

l:4

w: 3

l:4

w:1

Step-by-step explanation:

Hope this helps

8 0
3 years ago
Please help on 19 and 20
Svetradugi [14.3K]

Answer:

c and d

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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