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3 years ago

Do this jejejejejjejeplsss

Mathematics

1 answer:

In-s [12.5K]3 years ago

4 0

I JDKUHEIINDONT JDJKHS KNOW SKSN

Step-by-step explanation:

JSOSLS

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Cubed means an exponent of 2. true or false

stepan [7]

Answer:

This is false

Step-by-step explanation:

Cubed is an exponent of 3, a cube is a 3D shape.

Exponent of 2 is squared, s square is a 2D shape.

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2 years ago

Will give brainly,5 stars,and thanks

Irina-Kira [14]

Answer:

Give the person above me brainliest

Step-by-step explanation:

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3 years ago

If(√14/√7-2)-(√14/√7+2)=a√7+b√2 find the values of a and b where a and b are rational numbers

seraphim [82]

Answer:

a = 4/3 and b = 0

============================

<h2>Given expression:</h2>

$\dfrac{\sqrt{14} }{\sqrt{7}-2} -\dfrac{\sqrt{14} }{\sqrt{7}+2}$

<h2>Simplify it in steps:</h2>

Bring both fractions into common denominator:

$\dfrac{\sqrt{14} (\sqrt{7}+2)}{(\sqrt{7}-2)(\sqrt{7}+2)} - \dfrac{\sqrt{14} (\sqrt{7}-2)}{(\sqrt{7}-2)(\sqrt{7}+2)}$

Simplify:

$\dfrac{\sqrt{14} ((\sqrt{7}+2) - (\sqrt{7}-2))}{(\sqrt{7}-2)(\sqrt{7}+2)} =$

$\dfrac{\sqrt{14} (\sqrt{7}+2 - \sqrt{7}+2)}{(\sqrt{7}-2)(\sqrt{7}+2)} =$

$\dfrac{4\sqrt{14} }{(\sqrt{7}-2)(\sqrt{7}+2)} =$

$\dfrac{4\sqrt{14} }{(\sqrt{7})^2-2^2} =$

$\dfrac{4\sqrt{14} }{7-4} =$

$\dfrac{4}{3} \sqrt{14} }$

Compare the result with given expression to get:

a = 4/3 and b = 0

4 0

2 years ago

What is the scale factor solve of x

Natasha_Volkova [10]

The scale factor is 2

x = 11.5

14/7 = 2

23/x = 2

x = 11.5

3 0

3 years ago

Read 2 more answers

What is the solution to the system of equations<br><br> y=2x-3.5<br><br> x-2y=-14

PIT_PIT [208]

Y-2x=-3.5
x-2y=-14
then multiply the first term by 2
2y-4x=-7
x-2y=-14
then sum them
-3x=-21
x=-7
y=3.5

5 0

3 years ago