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4 years ago

Which number produces an irrational number when added to 3/4?

1 answer:

6 0

Any irrational number produces an irrational number when added to 3/4.

This is because 3/4 is rational (it can be represented as a ratio of two integers). You can get an irrational number only when you add rational to irrational (because rational to rational produces a rational sum).

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Place parentheses in the expression so that it equals the given value.

vesna_86 [32]

20+2•(5+4^1) keep in mind of PEMDAS, so solve in the order P: Parentheses E: Exponents(in this case you would solve the exponent before the parentheses M: Multiplication D: Division A: Addition S: Subtraction

4 0

3 years ago

How do I set up proportion’s and also cross multiply

xenn [34]

Answer:

u transpose all the constans to one side of the '=' sign and solve

Step-by-step explanation:

for example,

in the first question

the sides of the triangles are proportional then,

25/30 = x/ 10

=> (25x10)/30 = x

=> 250/30 = x

=> 8.33

im pretty sure like this u can do the rest, ;)

6 0

3 years ago

If cos(θ)= -2/3 and θ lies in quadrant II, find the value of cotθ

Lera25 [3.4K]

$\text{Given that,}\\\\\cos \theta = - \dfrac 23\\\\\implies \cos^2 \theta = \dfrac 49\\\\\implies 1- \sin^2 \theta = \dfrac 49\\\\\implies \sin^2 \theta =1-\dfrac 49\\\\\implies \sin^2 \theta =\dfrac 59\\\\\\\text{Now,}\\\\\cot^2 \theta = \dfrac{\cos^2 \theta}{\sin^2 \theta} \\\\\\\implies \cot^2 \theta = \dfrac{\tfrac 49}{\tfrac 59}\\\\\\\implies \cot^2 \theta = \dfrac 49 \times \dfrac 95\\\\\\\implies \cot^2 \theta = \dfrac 45\\\\\\$

$\implies \cot \theta = \pm\sqrt{\dfrac 45} = \pm \dfrac 2{\sqrt 5}\\\\\\\text{Since}~ \theta ~ \text{lies in the second quadrant,} \cot \theta ~\text{will be negative.}\\\\\text{Hence,}~ \cot \theta = - \dfrac{2}{\sqrt 5}$

6 0

2 years ago

Read 2 more answers

6/100 equals what as a decimal?

Dahasolnce [82]

Answer:

0.06

Step-by-step explanation:

hope this helps

6 divide by 100= 0.06

3 0

3 years ago

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Figure FGHJ is shown below.

Mumz [18]

Answer:

quadilateral and parallelogram

Step-by-step explanation:

Find the diagram attached.

The given four is known to have 4 sides and sicne quadilaterals are figures having four side, hence the given figure is a quadilateral. The example of the quadilateral is a parallelogram since opposite sides of the quadilateral are equal.

The names that accurately descbes the figure are quadilateral and parallelogram

3 0

3 years ago

Read 2 more answers