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4 years ago

What is the answer to this 2√3-5√÷√3+2√5

Mathematics

2 answers:

Natasha_Volkova [10]4 years ago

7 0

Answer:

(16 - 5√15) ÷ (-17)

Step-by-step explanation:

(2√3-√5÷√3+2√5

By surd rationalization

(2√3-√5÷√3+2√5) * (√3-2√5÷√3-2√5)

(2×3 - 4√15 - √15 + 2×5) ÷ (3 - 2√15 + 2√15 - 4×5)

(6 - 5√15 + 10) ÷ (3 - 20)

(16 - 5√15) ÷ (-17)

Burka [1]4 years ago

4 0

Answer:

$\sqrt{ \div 3}$

mathematicallly error sentence!

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tatuchka [14]

Answer:

$x = 1 \frac{5}{16}$

Step-by-step explanation:

$8x + \frac{5}{2} = 13 \\ \\ 8x = 13 - \frac{5}{2} \\ \\ 8x = \frac{13 \times 2 - 5}{2} \\ \\ 8x = \frac{26 - 5}{2} \\ \\ 8x = \frac{21}{2} \\ \\ x = \frac{21 }{2\times 8} \\ \\ x = \frac{21}{16} \\ \\ x = 1 \frac{5}{16} \\$

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3 years ago

The surface area A of a cube is equal to the sum on the areas of the 6 square faces that form the cube. If each face has side le

algol [13]

Answer:

18 units

Step-by-step explanation:

Hello, I can help you with this.

Step 1

identify

we have a equation, let's look it

A=6s2

The surface area A of a cube=6(area of a face)

area of face= side*side

Area=6*side*side

Step 2

isolate side from the equation

$side^{2}=\frac{Area}{6}\\side=+\sqrt{\frac{Area}{6}}$

we are looking for a distance, so , we will use only the positive root

Step 3

replace the value of 1944 square units into the equation

$side=+\sqrt{\frac{Area}{6}}\\side=+\sqrt{\frac{1944}{6}}\\side=\sqrt{324}\\\\side=18\\$

so, the value x of a side of a cube with a total

the side of a cube is 18 units when the surface area of the cube shown is 1944 units2

Have a good day.

6 0

3 years ago

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antiseptic1488 [7]

Answer:

points of equal temperature.

Step-by-step explanation:

They're not explained very well but You'd have to watch the weather channel alot.

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4 years ago

Which equation is equivalent to the equation 6x + 9=12

quester [9]

Answer:

the answer is 1/2

Step-by-step explanation:

i solved it

6 0

3 years ago

Solve system by elimination <br> -2x-5y=13<br> 2x+5y=-3

kolbaska11 [484]

Answer:

There is no solution to this equation.

Step-by-step explanation:

We know this because when we go to eliminate a term, both terms cancel out resulting in an incorrect statement. This makes the answer no solution.

-2x - 5y = 13

2x + 5y = -3

----------------

0 = 10

4 0

4 years ago

What is the answer to this 2√3-5√÷√3+2√5​

What is the answer to this 2√3-5√÷√3+2√5