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wolverine [178]

3 years ago

10

Any help plz i need som body help

1 answer:

nirvana33 [79]3 years ago

5 0

The least amount of dozens they can buy is 9. the cost will be $13.41

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<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%3D%20%20%5Cfrac%7B121%7D%7B196%7D%20" id="TexFormula1" title=" {x}^{2}

Artist 52 [7]

$x^2=\dfrac{121}{196}\iff x=\pm\sqrt{\dfrac{121}{196}}\\\\x=-\dfrac{\sqrt{121}}{\sqrt{196}}\ \vee\ x=\dfrac{\sqrt{121}}{\sqrt{196}}\\\\\boxed{x=-\dfrac{11}{14}\ \vee\ x=\dfrac{11}{14}}\\\\\sqrt{a}=b\iff b^2=a\\\\\sqrt{121}=11\ \text{because}\ 11^2=121\\\\\sqrt{196}=14\ \text{because}\ 14^2=196$

7 0

4 years ago

AN EMPTY SET IS EQUIVALENT TO ZERO?

Orlov [11]

Answer:

In mathematics, the empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero.

Hope this helps!

Step-by-step explanation:

7 0

3 years ago

PLEASE HELP PLEASE AND EXPLAIN THANK YOU

Ainat [17]

Answer: 56

Step-by-step explanation:

3 0

3 years ago

PLEASE HELP SOLVE!! WILL MARK THE BRAINIES

quester [9]

Answer:

ABC

Step-by-step explanation:

3 0

3 years ago

Ifn || m, find the value of x and the value of y.

Marat540 [252]

Answer: Option C

$y=5$ , $x=10$

Step-by-step explanation:

If the lines m and n are parallel then the large triangle and the small triangle are similar triangles, because they have equal angles.

By definition for similar triangles it is satisfied that if they have sides of length a, b, c and a', b', c' then:

$\frac{a}{a'}=\frac{b}{b'} =\frac{c}{c'}$

In this case

$a = 12\\a' = 4\\c = 15\\c' = y$

So:

$\frac{12}{4}=\frac{15}{y}$

Now solve the equation for the variable y

$3=\frac{15}{y}$

$y=\frac{15}{3}$

$y=5$

We know that

$x+y=15$ and $y=5$

Then

$x+5=15$

$x=10$

Finally the answer is:

$y=5$ , $x=10$

5 0

3 years ago