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4 years ago

Which inequalities are true? Check all that apply.

Mathematics

2 answers:

slamgirl [31]4 years ago

6 0

Juss work out the square roots by imputing that’s into your calculator then when you get the two numbers of it’s the greater or less than sign see which one it is and then you can see if the statement is true or false

Hope this helped

marta [7]4 years ago

6 0

Answer:

1,2,3,6

Step-by-step explanation:

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3 years ago

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strojnjashka [21]

Answer:

<h2>A. a^14 divided by -4</h2>

Step-by-step explanation:

$(-4a^2)(2a^{-3})^{-4}\qquad\text{use}\ (xy)^n=x^ny^n\ \text{and}\ (x^n)^m=x^{nm}\\\\=(-4a^2)\bigg(2^{-4}a^{(-3)(-4)}\bigg)\qquad\text{use}\ 4=2^2\\\\=(-2^2a^2)(2^{-4}a^{12})\\\\=-(2^2)(2^{-4})(a^2a^{12})\qquad\text{use}\ x^nx^m=x^{n+m}\\\\=-2^{2+(-4)}a^{2+12}\\\\=-2^{-2}a^{14}\qquad\text{use}\ x^{-n}=\dfrac{1}{x^n}\\\\=-\dfrac{1}{2^2}a^{14}\\\\=-\dfrac{a^{14}}{4}$

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4 years ago

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3 years ago

HELP BRAINISET TO WHOEVER RIGHT

Natasha_Volkova [10]

Answer:

A: 171.75

B: 170

Step-by-step explanation:

The mean (or average) can be found by...

- add all the numbers together (we will call this y)

- divide the total sum (or y) by the total amount of numbers used to add

Formula:

(x₁ + x₂ + x₃ + ... + xₙ) ÷ n

For A:

(172 + 130 + 173 + 212) ÷ 4 = 171.75

For B:

(136 + 184 + 168 + 192) ÷ 4 = 170

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3 years ago

Based on the information marked in the diagram, ABC and DEF must be congruent.

drek231 [11]

Answer:

Option A is correct

True, ΔABC and ΔDEF must be congruent.

Explanation:

LA theorem or Postulates states that given two right triangles, where one acute angle and a leg of one of the triangles are congruent to an angle and a leg of the other triangle, then the two triangles are congruent.

In ΔABC and ΔDEF

AB = DE [Leg] [Given in the figure]

$\angle BAC = \angle EDF = 90^{\circ}$ [Given]

$\angle BCA = \angle EFD$ [Acute angle] [Given in the figure]

Then, by the LA theorem or Postulates;

therefore, ΔABC $\cong$ ΔDEF .

3 0

4 years ago

Read 2 more answers