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3 years ago

Plz help me I just need this one

Mathematics

2 answers:

Reil [10]3 years ago

7 0

Answer:

12.7

Step-by-step explanation:

i got you

Rufina [12.5K]3 years ago

6 0

12.7. This is all I think of

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How do you ratify the denominator for 2/ 2(sqrt2)? When I multiply by sqrt2/sqrt 2 I'm still left with a radical in the denomina

asambeis [7]

Answer: $\dfrac{\sqrt{2}}{2}$

Step-by-step explanation:

Given

The fraction is $\dfrac{2}{2\sqrt{2}}$

Making denominator a number, multiply and divide by $\sqrt{2}$

$\Rightarrow \dfrac{2}{2\sqrt{2}}\times \dfrac{\sqrt{2}}{\sqrt{2}}\\\\\Rightarrow \dfrac{2\sqrt{2}}{2\sqrt{2}\times \sqrt{2}}=\dfrac{2\sqrt{2}}{2\sqrt{2\times 2}}\\\\\text{cancel out the common term 2}\\\\\Rightarrow \dfrac{\sqrt{2}}{2}$

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3 years ago

Ariana has a collection of 100 coins. How many coins represent 10% of her collection?

AnnZ [28]

Answer: 10

Step-by-step explanation:

10% is the same as 10/100

10% would equal 10 (out of the 100) coins

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3 years ago

What is the solution to the system of equations?

Mashcka [7]

Answer: (-2, 5/3)

explanation: since you are given x = -2, just plug that into the equation and solve.

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3 years ago

If a+b=5 and a-b=4 then b^2-a^2 =

Anna007 [38]

Answer:

$a + b = 5 \\ a \: = 5 - b \\ a - b = 4 \\ 5 - b - b = 4 \\ 5 - 2b = 4 \\ 5 - 4 = 2b \\ 1 = 2b \\ \frac{1}{2} = \frac{2b}{2} \\0.5 = b \\ b = 0.5 \\ a = 5 - b \\ = 5 - 0.5 \\ = 4.5 \\ {a \: }^{2} - {b}^{2} = ( {4.5}^{2}) - ( {0.5}^{2} ) \\ = 20.25 - 0.25 \\ = 20 \\ {a}^{2} - {b}^{2} = 20$

Step-by-step explanation:

HOPE THAT THIS IS HELPFUL.

HAVE A GREAT DAY.

5 0

3 years ago

In the diagram below, Bonnie claims that ΔMLV ≅ ΔRLT.

nevsk [136]

∠ M ≅ ∠ R: true

VL ≅ LT: true

Δ MLV can be rotated about point L to map it to Δ RLT. : false

A series of rigid transformations of Δ MLV maps it to Δ RLT. : true

3 0

3 years ago