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3 years ago

Solve the following equation show your work x^2-4=0

Mathematics

1 answer:

arsen [322]3 years ago

7 0

Answer:

x = 2, x = - 2

Step-by-step explanation:

Step 1:

x² - 4 = 0 Equation

Step 2:

x² = 4 Add 4 on both sides

Step 3:

x = $\sqrt{4}$ Square 4

Answer:

x = 2, x = - 2

Hope This Helps :)

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A pizza had 9/10 left before Lucas ate 4/5 of the pizza. How much pizza is left over

Norma-Jean [14]

1/10 is left.

Explanation:

First we need to find a common denominator. Since 5×2=10, if we multiply 4/5 by 2/2, we will be able to subtract that from 9/10.

4/5×2/2= 8/10. Then if we subtract that from the 9/10 left of the pizza, we get 1/10, the amount remaining.

Hope this helps :)

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2 years ago

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Convert -3x + 2y = 10 into slope-intercept form.

GrogVix [38]

Y=3/2x+5 is the answer

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3 years ago

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WINSTONCH [101]

Answer:

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Step-by-step explanation:

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3 years ago

A geometric series has second term 375 and fifth term 81 . find the sum to infinity of series .

Eduardwww [97]

Answer: $\bold{S_{\infty}=\dfrac{3125}{2}=1562.5}$

<u>Step-by-step explanation:</u>

a₁, 375, a₃, a₄, 81

First, let's find the ratio (r). There are three multiple from 375 to 81.

$375r^3=81\\\\r^3=\dfrac{81}{375}\\\\\\r^3=\dfrac{27}{125}\qquad \leftarrow simplied\\\\\\\sqrt[3]{r^3} =\sqrt[3]{\dfrac{27}{125}}\\ \\\\r=\dfrac{3}{5}$

Next, let's find a₁

$a_1\bigg(\dfrac{3}{5}\bigg)=375\\\\\\a_1=375\bigg(\dfrac{5}{3}\bigg)\\\\\\a_1=125(5)\\\\\\a_1=625$

Lastly, Use the Infinite Geometric Sum Formula to find the sum:

$S_{\infty}=\dfrac{a_1}{1-r}\\\\\\.\quad =\dfrac{625}{1-\frac{3}{5}}\\\\\\.\quad =\dfrac{625}{\frac{2}{5}}\\\\\\.\quad = \dfrac{625(5)}{2}\\\\\\.\quad = \large\boxed{\dfrac{3125}{2}}$

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3 years ago

What is 2×109102929128829911001

babunello [35]

Answer:

218,205,858,257,659,822,002

Step-by-step explanation:

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3 years ago