3 years ago

Can anyone help me?please

Mathematics

2 answers:

photoshop1234 [79]3 years ago

7 0

Answer:

EB = 5

Step-by-step explanation:

ivanzaharov [21]3 years ago

7 0

EB = 5

hope this helped
thank you

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Find the number that must be added to each expression to form a perfect square trinomial. Then write the trinomial as a binomial

maksim [4K]

<h2>Hello!</h2>

The answers are:

a) $\frac{49}{4}$

b) $(x+\frac{7}{2})^{2}$

First, we need to know that for this case:

$a=1\\2ab=7$

So,

$b=\frac{7}{2}$

$b^{2} =(\frac{7}{2})^{2}=\frac{49}{4}$

We must add $\frac{49}{4}$ to the expression in order to form a perfect square trinomial,

$x^{2} +7x+\frac{49}{4}$

Writing the trinomial as a binomial square:

$(x+\frac{7}{2})^{2}=x^{2}+2*\frac{7}{2}*x+(\frac{7}{2})^{2}=x^{2} +7x+\frac{49}{4}$

Have a nice day!

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A and B are two points on square ABCD with coordinates A(1,3) and B(5,3). What are the lengths of the diagonals AC and BD? Round

lilavasa [31]

Answer:

$AC = BD = 5.7$

Step-by-step explanation:

Given

$A = (1,3)$

$B = (5,3)$

Required

The length of the diagonals

First, calculate the length of AB using:

$d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}$

So, we have:

$AB = \sqrt{(1 - 5)^2 + (3 - 3)^2}$

$AB = \sqrt{(-4)^2 + 0^2}$

$AB = \sqrt{16}$

$AB = 4$

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$Diagonal = x\sqrt{2$

Where x is the length of each side.

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$AC = BD = AB\sqrt{2}$

$AC = BD = 4\sqrt{2}$

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7 0

3 years ago

Can anyone help me?please​

Can anyone help me?please